OrcaSlicer/src/libslic3r/GCode/WipeTower.cpp
zhimin.zeng a5ae552512 EMH: enhance for rib wall wiper tower
1. fix the slice error status
2. add rendering for wiper tower
3. modify the wipe tower start pos for rib wall wipe tower
jira: none

Change-Id: If554ca0fb30f6c7ce9641014c0ed4a7f23afd6f4
(cherry picked from commit 3ae08b458dea1d04cad33b2787d98407111b038c)
(cherry picked from commit 55772c59126bc4dd5c2ad022e7a959785c29cb4e)
2025-09-12 15:37:46 +08:00

4170 lines
179 KiB
C++

#include "WipeTower.hpp"
#include <cassert>
#include <iostream>
#include <vector>
#include <numeric>
#include <sstream>
#include <iomanip>
#include "GCodeProcessor.hpp"
#include "BoundingBox.hpp"
#include "LocalesUtils.hpp"
namespace Slic3r
{
static const double wipe_tower_wall_infill_overlap = 0.0;
static const double wipe_tower_wall_infill_overlap_new = -0.2;
static constexpr double WIPE_TOWER_RESOLUTION = 0.0375;
#define SCALED_WIPE_TOWER_RESOLUTION (WIPE_TOWER_RESOLUTION / SCALING_FACTOR)
inline float align_round(float value, float base)
{
return std::round(value / base) * base;
}
inline float align_ceil(float value, float base)
{
return std::ceil(value / base) * base;
}
inline float align_floor(float value, float base)
{
return std::floor((value) / base) * base;
}
static bool is_valid_gcode(const std::string &gcode)
{
int str_size = gcode.size();
int start_index = 0;
int end_index = 0;
bool is_valid = false;
while (end_index < str_size) {
if (gcode[end_index] != '\n') {
end_index++;
continue;
}
if (end_index > start_index) {
std::string line_str = gcode.substr(start_index, end_index - start_index);
line_str.erase(0, line_str.find_first_not_of(" "));
line_str.erase(line_str.find_last_not_of(" ") + 1);
if (!line_str.empty() && line_str[0] != ';') {
is_valid = true;
break;
}
}
start_index = end_index + 1;
end_index = start_index;
}
return is_valid;
}
Polygon chamfer_polygon(Polygon &polygon, double chamfer_dis = 2., double angle_tol = 30. / 180. * PI)
{
if (polygon.points.size() < 3) return polygon;
Polygon res;
res.points.reserve(polygon.points.size() * 2);
int mod = polygon.points.size();
double cos_angle_tol = abs(std::cos(angle_tol));
for (int i = 0; i < polygon.points.size(); i++) {
Vec2d a = unscaled(polygon.points[(i - 1 + mod) % mod]);
Vec2d b = unscaled(polygon.points[i]);
Vec2d c = unscaled(polygon.points[(i + 1) % mod]);
double ab_len = (a - b).norm();
double bc_len = (b - c).norm();
Vec2d ab = (b - a) / ab_len;
Vec2d bc = (c - b) / bc_len;
assert(ab_len != 0);
assert(bc_len != 0);
float cosangle = ab.dot(bc);
//std::cout << " angle " << acos(cosangle) << " cosangle " << cosangle << std::endl;
//std::cout << " ab_len " << ab_len << " bc_len " << bc_len << std::endl;
if (abs(cosangle) < cos_angle_tol) {
float real_chamfer_dis = std::min({chamfer_dis, ab_len / 2.1, bc_len / 2.1}); // 2.1 to ensure the points do not coincide
Vec2d left = b - ab * real_chamfer_dis;
Vec2d right = b + bc * real_chamfer_dis;
res.points.push_back(scaled(left));
res.points.push_back(scaled(right));
} else
res.points.push_back(polygon.points[i]);
}
res.points.shrink_to_fit();
return res;
}
Polygon rounding_polygon(Polygon &polygon, double rounding = 2., double angle_tol = 30. / 180. * PI)
{
if (polygon.points.size() < 3) return polygon;
Polygon res;
res.points.reserve(polygon.points.size() * 2);
int mod = polygon.points.size();
double cos_angle_tol = abs(std::cos(angle_tol));
for (int i = 0; i < polygon.points.size(); i++) {
Vec2d a = unscaled(polygon.points[(i - 1 + mod) % mod]);
Vec2d b = unscaled(polygon.points[i]);
Vec2d c = unscaled(polygon.points[(i + 1) % mod]);
double ab_len = (a - b).norm();
double bc_len = (b - c).norm();
Vec2d ab = (b - a) / ab_len;
Vec2d bc = (c - b) / bc_len;
assert(ab_len != 0);
assert(bc_len != 0);
float cosangle = ab.dot(bc);
cosangle = std::clamp(cosangle, -1.f, 1.f);
bool is_ccw = cross2(ab, bc) > 0;
if (abs(cosangle) < cos_angle_tol) {
float real_rounding_dis = std::min({rounding, ab_len / 2.1, bc_len / 2.1}); // 2.1 to ensure the points do not coincide
Vec2d left = b - ab * real_rounding_dis;
Vec2d right = b + bc * real_rounding_dis;
//Point r_left = scaled(left);
//Point r_right = scaled(right);
// std::cout << " r_left " << r_left[0] << " " << r_left[1] << std::endl;
//std::cout << " r_right " << r_right[0] << " " << r_right[1] << std::endl;
{
float half_angle = std::acos(cosangle)/2.f;
//std::cout << " half_angle " << cos(half_angle) << std::endl;
Vec2d dir = (right - left).normalized();
dir = Vec2d{-dir[1], dir[0]};
dir = is_ccw ? dir : -dir;
double dis = real_rounding_dis / sin(half_angle);
//std::cout << " dis " << dis << std::endl;
Vec2d center = b + dir * dis;
double radius = (left - center).norm();
ArcSegment arc(scaled(center), scaled(radius), scaled(left), scaled(right), is_ccw ? ArcDirection::Arc_Dir_CCW : ArcDirection::Arc_Dir_CW);
float sample_angle = 5.f / 180.f * PI;
int n = std::ceil(abs(arc.angle_radians) / sample_angle);
//std::cout << "start " << arc.start_point[0] << " " << arc.start_point[1] << std::endl;
//std::cout << "end " << arc.end_point[0] << " " << arc.end_point[1] << std::endl;
//std::cout << "start angle " << arc.polar_start_theta << " end angle " << arc.polar_end_theta << std::endl;
for (int j = 0; j < n; j++) {
float cur_angle = arc.polar_start_theta + (float)j/n * arc.angle_radians ;
//std::cout << " cur_angle " << cur_angle << std::endl;
if (cur_angle > 2 * PI)
cur_angle -= 2 * PI;
else if (cur_angle < 0)
cur_angle += 2 * PI;
Point tmp = arc.center + Point{arc.radius * std::cos(cur_angle), arc.radius *std::sin(cur_angle)};
//std::cout << "j = " << j << std::endl;
//std::cout << "tmp = " << tmp[0]<<" "<<tmp[1] << std::endl;
res.points.push_back(tmp);
}
}
res.points.push_back(scaled(right));
} else
res.points.push_back(polygon.points[i]);
}
res.points.shrink_to_fit();
return res;
}
Polygon rounding_rectangle(Polygon &polygon, double rounding = 2., double angle_tol = 30. / 180. * PI) {
if (polygon.points.size() < 3) return polygon;
Polygon res;
res.points.reserve(polygon.points.size() * 2);
int mod = polygon.points.size();
double cos_angle_tol = abs(std::cos(angle_tol));
for (int i = 0; i < polygon.points.size(); i++) {
Vec2d a = unscaled(polygon.points[(i - 1 + mod) % mod]);
Vec2d b = unscaled(polygon.points[i]);
Vec2d c = unscaled(polygon.points[(i + 1) % mod]);
double ab_len = (a - b).norm();
double bc_len = (b - c).norm();
Vec2d ab = (b - a) / ab_len;
Vec2d bc = (c - b) / bc_len;
assert(ab_len != 0);
assert(bc_len != 0);
float cosangle = ab.dot(bc);
cosangle = std::clamp(cosangle, -1.f, 1.f);
bool is_ccw = cross2(ab, bc) > 0;
if (abs(cosangle) < cos_angle_tol) {
float real_rounding_dis = std::min({rounding, ab_len / 2.1, bc_len / 2.1}); // 2.1 to ensure the points do not coincide
Vec2d left = b - ab * real_rounding_dis;
Vec2d right = b + bc * real_rounding_dis;
//Point r_left = scaled(left);
//Point r_right = scaled(right);
// std::cout << " r_left " << r_left[0] << " " << r_left[1] << std::endl;
// std::cout << " r_right " << r_right[0] << " " << r_right[1] << std::endl;
{
Vec2d center = b;
double radius = real_rounding_dis;
ArcSegment arc(scaled(center), scaled(radius), scaled(left), scaled(right), is_ccw ? ArcDirection::Arc_Dir_CCW : ArcDirection::Arc_Dir_CW);
float sample_angle = 5.f / 180.f * PI;
int n = std::ceil(abs(arc.angle_radians) / sample_angle);
// std::cout << "start " << arc.start_point[0] << " " << arc.start_point[1] << std::endl;
// std::cout << "end " << arc.end_point[0] << " " << arc.end_point[1] << std::endl;
// std::cout << "start angle " << arc.polar_start_theta << " end angle " << arc.polar_end_theta << std::endl;
for (int j = 0; j < n; j++) {
float cur_angle = arc.polar_start_theta + (float) j / n * arc.angle_radians;
// std::cout << " cur_angle " << cur_angle << std::endl;
if (cur_angle > 2 * PI)
cur_angle -= 2 * PI;
else if (cur_angle < 0)
cur_angle += 2 * PI;
Point tmp = arc.center + Point{arc.radius * std::cos(cur_angle), arc.radius * std::sin(cur_angle)};
// std::cout << "j = " << j << std::endl;
// std::cout << "tmp = " << tmp[0]<<" "<<tmp[1] << std::endl;
res.points.push_back(tmp);
}
}
res.points.push_back(scaled(right));
} else
res.points.push_back(polygon.points[i]);
}
res.points.shrink_to_fit();
return res;
}
std::pair<bool, Vec2f> ray_intersetion_line(const Vec2f &a, const Vec2f &v1, const Vec2f &b, const Vec2f &c)
{
const Vec2f v2 = c - b;
double denom = cross2(v1, v2);
if (fabs(denom) < EPSILON) return {false, Vec2f(0, 0)};
const Vec2f v12 = (a - b);
double nume_a = cross2(v2, v12);
double nume_b = cross2(v1, v12);
double t1 = nume_a / denom;
double t2 = nume_b / denom;
if (t1 >= 0 && t2 >= 0 && t2 <= 1.) {
// Get the intersection point.
Vec2f res = a + t1 * v1;
return std::pair<bool, Vec2f>(true, res);
}
return std::pair<bool, Vec2f>(false, Vec2f{0, 0});
}
Polygon scale_polygon(const std::vector<Vec2f> &points) {
Polygon res;
for (const auto &p : points) res.points.push_back(scaled(p));
return res;
}
std::vector<Vec2f> unscale_polygon(const Polygon& polygon)
{
std::vector<Vec2f> res;
for (const auto &p : polygon.points) res.push_back(unscaled<float>(p));
return res;
}
Polygon generate_rectange(const Line &line, coord_t offset)
{
Point p1 = line.a;
Point p2 = line.b;
double dx = p2.x() - p1.x();
double dy = p2.y() - p1.y();
double length = std::sqrt(dx * dx + dy * dy);
double ux = dx / length;
double uy = dy / length;
double vx = -uy;
double vy = ux;
double ox = vx * offset;
double oy = vy * offset;
Points rect;
rect.resize(4);
rect[0] = {p1.x() + ox, p1.y() + oy};
rect[1] = {p1.x() - ox, p1.y() - oy};
rect[2] = {p2.x() - ox, p2.y() - oy};
rect[3] = {p2.x() + ox, p2.y() + oy};
Polygon poly(rect);
return poly;
};
struct Segment
{
Vec2f start;
Vec2f end;
bool is_arc = false;
ArcSegment arcsegment;
Segment(const Vec2f &s, const Vec2f &e) : start(s), end(e) {}
bool is_valid() const { return start.y() < end.y(); }
};
static std::vector<Segment> remove_points_from_segment(const Segment &segment, const std::vector<Vec2f> &skip_points, double range)
{
std::vector<Segment> result;
result.push_back(segment);
float x = segment.start.x();
for (const Vec2f &point : skip_points) {
std::vector<Segment> newResult;
for (const auto &seg : result) {
if (point.y() + range <= seg.start.y() || point.y() - range >= seg.end.y()) {
newResult.push_back(seg);
} else {
if (point.y() - range > seg.start.y()) { newResult.push_back(Segment(Vec2f(x, seg.start.y()), Vec2f(x, point.y() - range))); }
if (point.y() + range < seg.end.y()) { newResult.push_back(Segment(Vec2f(x, point.y() + range), Vec2f(x, seg.end.y()))); }
}
}
result = newResult;
}
result.erase(std::remove_if(result.begin(), result.end(), [](const Segment &seg) { return !seg.is_valid(); }), result.end());
return result;
}
struct IntersectionInfo
{
Vec2f pos;
int idx;
int pair_idx; // gap_pair idx
float dis_from_idx;
bool is_forward;
};
struct PointWithFlag
{
Vec2f pos;
int pair_idx; // gap_pair idx
bool is_forward;
};
IntersectionInfo move_point_along_polygon(const std::vector<Vec2f> &points, const Vec2f &startPoint, int startIdx, float offset, bool forward, int pair_idx)
{
float remainingDistance = offset;
IntersectionInfo res;
int mod = points.size();
if (forward) {
int next = (startIdx + 1) % mod;
remainingDistance -= (points[next] - startPoint).norm();
if (remainingDistance <= 0) {
res.idx = startIdx;
res.pos = startPoint + (points[next] - startPoint).normalized() * offset;
res.pair_idx = pair_idx;
res.dis_from_idx = (points[startIdx] - res.pos).norm();
return res;
} else {
for (int i = (startIdx + 1) % mod; i != startIdx; i = (i + 1) % mod) {
float segmentLength = (points[(i + 1) % mod] - points[i]).norm();
if (remainingDistance <= segmentLength) {
float ratio = remainingDistance / segmentLength;
res.idx = i;
res.pos = points[i] + ratio * (points[(i + 1) % mod] - points[i]);
res.dis_from_idx = remainingDistance;
res.pair_idx = pair_idx;
return res;
}
remainingDistance -= segmentLength;
}
res.idx = (startIdx - 1 + mod) % mod;
res.pos = points[startIdx];
res.pair_idx = pair_idx;
res.dis_from_idx = (res.pos - points[res.idx]).norm();
}
} else {
int next = (startIdx + 1) % mod;
remainingDistance -= (points[startIdx] - startPoint).norm();
if (remainingDistance <= 0) {
res.idx = startIdx;
res.pos = startPoint - (points[next] - points[startIdx]).normalized() * offset;
res.dis_from_idx = (res.pos - points[startIdx]).norm();
res.pair_idx = pair_idx;
return res;
}
for (int i = (startIdx - 1 + mod) % mod; i != startIdx; i = (i - 1 + mod) % mod) {
float segmentLength = (points[(i + 1) % mod] - points[i]).norm();
if (remainingDistance <= segmentLength) {
float ratio = remainingDistance / segmentLength;
res.idx = i;
res.pos = points[(i + 1) % mod] - ratio * (points[(i + 1) % mod] - points[i]);
res.dis_from_idx = segmentLength - remainingDistance;
res.pair_idx = pair_idx;
return res;
}
remainingDistance -= segmentLength;
}
res.idx = startIdx;
res.pos = points[res.idx];
res.pair_idx = pair_idx;
res.dis_from_idx = 0;
}
return res;
};
void insert_points(std::vector<PointWithFlag> &pl, int idx, Vec2f pos, int pair_idx, bool is_forward)
{
int next = (idx + 1) % pl.size();
Vec2f pos1 = pl[idx].pos;
Vec2f pos2 = pl[next].pos;
if ((pos - pos1).squaredNorm() < EPSILON) {
pl[idx].pair_idx = pair_idx;
pl[idx].is_forward = is_forward;
} else if ((pos - pos2).squaredNorm() < EPSILON) {
pl[next].pair_idx = pair_idx;
pl[next].is_forward = is_forward;
} else {
pl.insert(pl.begin() + idx + 1, PointWithFlag{pos, pair_idx, is_forward});
}
}
Polylines remove_points_from_polygon(const Polygon &polygon, const std::vector<Vec2f> &skip_points, double range, bool is_left ,Polygon& insert_skip_pg)
{
Polylines result;
std::vector<PointWithFlag> new_pl; // add intersection points for gaps, where bool indicates whether it's a gap point.
std::vector<IntersectionInfo> inter_info;
Vec2f ray = is_left ? Vec2f(-1, 0) : Vec2f(1, 0);
std::vector<Vec2f> points;
points.reserve(polygon.points.size());
for (auto &p : polygon.points) points.push_back(unscale(p).cast<float>());
for (int i = 0; i < skip_points.size(); i++) {
for (int j = 0; j < points.size(); j++) {
Vec2f& p1 = points[j];
Vec2f& p2 = points[(j + 1) % points.size()];
auto [is_inter, inter_pos] = ray_intersetion_line(skip_points[i], ray, p1, p2);
if (is_inter) {
IntersectionInfo forward = move_point_along_polygon(points, inter_pos, j, range, true, i);
IntersectionInfo backward = move_point_along_polygon(points, inter_pos, j, range, false, i);
backward.is_forward = false;
forward.is_forward = true;
inter_info.push_back(backward);
inter_info.push_back(forward);
break;
}
}
}
// insert point to new_pl
for (const auto &p : points) new_pl.push_back({p, -1});
std::sort(inter_info.begin(), inter_info.end(), [](const IntersectionInfo &lhs, const IntersectionInfo &rhs) {
if (rhs.idx == lhs.idx) return lhs.dis_from_idx < rhs.dis_from_idx;
return lhs.idx < rhs.idx;
});
for (int i = inter_info.size() - 1; i >= 0; i--) { insert_points(new_pl, inter_info[i].idx, inter_info[i].pos, inter_info[i].pair_idx, inter_info[i].is_forward); }
{
//set insert_pg for wipe_path
for (auto &p : new_pl) insert_skip_pg.points.push_back(scaled(p.pos));
}
//assume that no interval is completely contained within another interval.
int beg = -1;
for (int i = 0; i < skip_points.size(); i++) {
if (beg != -1) break;
for (int j = 0; j < new_pl.size(); j++) {
if (new_pl[j].pair_idx == i && !new_pl[j].is_forward) {
bool is_include_pair = false;
int k = (j + 1) % new_pl.size();
while (k != j) {
if (new_pl[k].pair_idx == i && new_pl[k].is_forward) { break; }
if (new_pl[k].pair_idx != -1 && new_pl[k].pair_idx != i && new_pl[k].is_forward) {
is_include_pair = true;
break;
}
k = (k + 1) % new_pl.size();
}
if (!is_include_pair) {
beg = k;
break;
}
}
}
}
if (beg == -1) beg = 0;
bool skip = true;
int i = beg;
Polyline pl;
do {
if (skip || new_pl[i].pair_idx == -1) {
pl.points.push_back(scaled(new_pl[i].pos));
i = (i + 1) % new_pl.size();
skip = false;
} else {
if (!pl.points.empty()) {
pl.points.push_back(scaled(new_pl[i].pos));
result.push_back(pl);
pl.points.clear();
}
int left = new_pl[i].pair_idx;
int j = (i + 1) % new_pl.size();
while (j != beg && new_pl[j].pair_idx != left) j = (j + 1) % new_pl.size();
i = j;
skip = true;
}
} while (i != beg);
if (!pl.points.empty()) {
if (new_pl[i].pair_idx==-1) pl.points.push_back(scaled(new_pl[i].pos));
result.push_back(pl);
}
return result;
}
Polylines contrust_gap_for_skip_points(const Polygon &polygon, const std::vector<Vec2f> & skip_points ,float wt_width,float gap_length,Polygon& insert_skip_polygon)
{
if (skip_points.empty()) {
insert_skip_polygon = polygon;
return Polylines{to_polyline(polygon)};
}
bool is_left = false;
const auto &pt = skip_points.front();
if (abs(pt.x()) < wt_width/2.f) {
is_left = true;
}
return remove_points_from_polygon(polygon, skip_points, gap_length, is_left, insert_skip_polygon);
};
Polygon generate_rectange_polygon(const Vec2f &wt_box_min ,const Vec2f & wt_box_max) {
Polygon res;
res.points.push_back(scaled(wt_box_min));
res.points.push_back(scaled(Vec2f{wt_box_max[0], wt_box_min[1]}));
res.points.push_back(scaled(wt_box_max));
res.points.push_back(scaled(Vec2f{wt_box_min[0], wt_box_max[1]}));
return res;
}
class WipeTowerWriter
{
public:
WipeTowerWriter(float layer_height, float line_width, GCodeFlavor flavor, const std::vector<WipeTower::FilamentParameters>& filament_parameters) :
m_current_pos(std::numeric_limits<float>::max(), std::numeric_limits<float>::max()),
m_current_z(0.f),
m_current_feedrate(0.f),
m_layer_height(layer_height),
m_extrusion_flow(0.f),
m_preview_suppressed(false),
m_elapsed_time(0.f),
#if ENABLE_GCODE_VIEWER_DATA_CHECKING
m_default_analyzer_line_width(line_width),
#endif // ENABLE_GCODE_VIEWER_DATA_CHECKING
m_gcode_flavor(flavor),
m_filpar(filament_parameters)
{
// ORCA: This class is only used by BBL printers, so set the parameter appropriately.
// This fixes an issue where the wipe tower was using BBL tags resulting in statistics for purging in the purge tower not being displayed.
GCodeProcessor::s_IsBBLPrinter = true;
// adds tag for analyzer:
std::ostringstream str;
str << ";" << GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Height) << std::to_string(m_layer_height) << "\n"; // don't rely on GCodeAnalyzer knowing the layer height - it knows nothing at priming
str << ";" << GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Role) << ExtrusionEntity::role_to_string(erWipeTower) << "\n";
m_gcode += str.str();
change_analyzer_line_width(line_width);
}
WipeTowerWriter& change_analyzer_line_width(float line_width) {
// adds tag for analyzer:
std::stringstream str;
str << ";" << GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Width) << std::to_string(line_width) << "\n";
m_gcode += str.str();
return *this;
}
#if ENABLE_GCODE_VIEWER_DATA_CHECKING
WipeTowerWriter& change_analyzer_mm3_per_mm(float len, float e) {
static const float area = float(M_PI) * 1.75f * 1.75f / 4.f;
float mm3_per_mm = (len == 0.f ? 0.f : area * e / len);
// adds tag for processor:
std::stringstream str;
str << ";" << GCodeProcessor::Mm3_Per_Mm_Tag << mm3_per_mm << "\n";
m_gcode += str.str();
return *this;
}
#endif // ENABLE_GCODE_VIEWER_DATA_CHECKING
WipeTowerWriter& set_initial_position(const Vec2f &pos, float width = 0.f, float depth = 0.f, float internal_angle = 0.f) {
m_wipe_tower_width = width;
m_wipe_tower_depth = depth;
m_internal_angle = internal_angle;
m_start_pos = this->rotate(pos);
m_current_pos = pos;
return *this;
}
WipeTowerWriter& set_initial_tool(size_t tool) { m_current_tool = tool; return *this; }
WipeTowerWriter& set_z(float z)
{ m_current_z = z; return *this; }
WipeTowerWriter& set_extrusion_flow(float flow)
{ m_extrusion_flow = flow; return *this; }
WipeTowerWriter& set_y_shift(float shift) {
m_current_pos.y() -= shift-m_y_shift;
m_y_shift = shift;
return (*this);
}
WipeTowerWriter& disable_linear_advance() {
if (m_gcode_flavor == gcfKlipper)
m_gcode += "SET_PRESSURE_ADVANCE ADVANCE=0\n";
else if (m_gcode_flavor == gcfRepRapFirmware)
m_gcode += std::string("M572 D") + std::to_string(m_current_tool) + " S0\n";
else
m_gcode += "M900 K0\n";
return *this;
}
// Suppress / resume G-code preview in Slic3r. Slic3r will have difficulty to differentiate the various
// filament loading and cooling moves from normal extrusion moves. Therefore the writer
// is asked to suppres output of some lines, which look like extrusions.
#if ENABLE_GCODE_VIEWER_DATA_CHECKING
WipeTowerWriter& suppress_preview() { change_analyzer_line_width(0.f); m_preview_suppressed = true; return *this; }
WipeTowerWriter& resume_preview() { change_analyzer_line_width(m_default_analyzer_line_width); m_preview_suppressed = false; return *this; }
#else
WipeTowerWriter& suppress_preview() { m_preview_suppressed = true; return *this; }
WipeTowerWriter& resume_preview() { m_preview_suppressed = false; return *this; }
#endif // ENABLE_GCODE_VIEWER_DATA_CHECKING
WipeTowerWriter& feedrate(float f)
{
if (f != m_current_feedrate) {
m_gcode += "G1" + set_format_F(f) + "\n";
m_current_feedrate = f;
}
return *this;
}
const std::string& gcode() const { return m_gcode; }
const std::vector<WipeTower::Extrusion>& extrusions() const { return m_extrusions; }
float x() const { return m_current_pos.x(); }
float y() const { return m_current_pos.y(); }
const Vec2f& pos() const { return m_current_pos; }
const Vec2f start_pos_rotated() const { return m_start_pos; }
const Vec2f pos_rotated() const { return this->rotate(m_current_pos); }
float elapsed_time() const { return m_elapsed_time; }
float get_and_reset_used_filament_length() { float temp = m_used_filament_length; m_used_filament_length = 0.f; return temp; }
// Extrude with an explicitely provided amount of extrusion.
WipeTowerWriter& extrude_explicit(float x, float y, float e, float f = 0.f, bool record_length = false, bool limit_volumetric_flow = true)
{
if (x == m_current_pos.x() && y == m_current_pos.y() && e == 0.f && (f == 0.f || f == m_current_feedrate))
// Neither extrusion nor a travel move.
return *this;
float dx = x - m_current_pos.x();
float dy = y - m_current_pos.y();
float len = std::sqrt(dx*dx+dy*dy);
if (record_length)
m_used_filament_length += e;
// Now do the "internal rotation" with respect to the wipe tower center
Vec2f rotated_current_pos(this->pos_rotated());
Vec2f rot(this->rotate(Vec2f(x,y))); // this is where we want to go
if (! m_preview_suppressed && e > 0.f && len > 0.f) {
#if ENABLE_GCODE_VIEWER_DATA_CHECKING
change_analyzer_mm3_per_mm(len, e);
#endif // ENABLE_GCODE_VIEWER_DATA_CHECKING
// Width of a squished extrusion, corrected for the roundings of the squished extrusions.
// This is left zero if it is a travel move.
float width = e * m_filpar[0].filament_area / (len * m_layer_height);
// Correct for the roundings of a squished extrusion.
width += m_layer_height * float(1. - M_PI / 4.);
if (m_extrusions.empty() || m_extrusions.back().pos != rotated_current_pos)
m_extrusions.emplace_back(WipeTower::Extrusion(rotated_current_pos, 0, m_current_tool));
m_extrusions.emplace_back(WipeTower::Extrusion(rot, width, m_current_tool));
}
m_gcode += "G1";
if (std::abs(rot.x() - rotated_current_pos.x()) > (float)EPSILON)
m_gcode += set_format_X(rot.x());
if (std::abs(rot.y() - rotated_current_pos.y()) > (float)EPSILON)
m_gcode += set_format_Y(rot.y());
if (e != 0.f)
m_gcode += set_format_E(e);
if (f != 0.f && f != m_current_feedrate) {
if (limit_volumetric_flow) {
float e_speed = e / (((len == 0.f) ? std::abs(e) : len) / f * 60.f);
f /= std::max(1.f, e_speed / m_filpar[m_current_tool].max_e_speed);
}
m_gcode += set_format_F(f);
}
m_current_pos.x() = x;
m_current_pos.y() = y;
// Update the elapsed time with a rough estimate.
m_elapsed_time += ((len == 0.f) ? std::abs(e) : len) / m_current_feedrate * 60.f;
m_gcode += "\n";
return *this;
}
// Extrude with an explicitely provided amount of extrusion.
WipeTowerWriter &extrude_arc_explicit(ArcSegment &arc, float f = 0.f, bool record_length = false, bool limit_volumetric_flow = true)
{
float x = (float)unscale(arc.end_point).x();
float y = (float)unscale(arc.end_point).y();
float len = unscaled<float>(arc.length);
float e = len * m_extrusion_flow;
if (len < (float) EPSILON && e == 0.f && (f == 0.f || f == m_current_feedrate))
// Neither extrusion nor a travel move.
return *this;
if (record_length) m_used_filament_length += e;
// Now do the "internal rotation" with respect to the wipe tower center
Vec2f rotated_current_pos(this->pos_rotated());
Vec2f rot(this->rotate(Vec2f(x, y))); // this is where we want to go
if (!m_preview_suppressed && e > 0.f && len > 0.f) {
#if ENABLE_GCODE_VIEWER_DATA_CHECKING
change_analyzer_mm3_per_mm(len, e);
#endif // ENABLE_GCODE_VIEWER_DATA_CHECKING
// Width of a squished extrusion, corrected for the roundings of the squished extrusions.
// This is left zero if it is a travel move.
float width = e * m_filpar[0].filament_area / (len * m_layer_height);
// Correct for the roundings of a squished extrusion.
width += m_layer_height * float(1. - M_PI / 4.);
if (m_extrusions.empty() || m_extrusions.back().pos != rotated_current_pos) m_extrusions.emplace_back(WipeTower::Extrusion(rotated_current_pos, 0, m_current_tool));
{
float sample_angle = 5.f / 180.f * PI;
int n = std::ceil(abs(arc.angle_radians) / sample_angle);
for (int j = 0; j < n; j++) {
float cur_angle = arc.polar_start_theta + (float) j / n * arc.angle_radians;
if (cur_angle > 2 * PI)
cur_angle -= 2 * PI;
else if (cur_angle < 0)
cur_angle += 2 * PI;
Point tmp = arc.center + Point{arc.radius * std::cos(cur_angle), arc.radius * std::sin(cur_angle)};
m_extrusions.emplace_back(WipeTower::Extrusion(this->rotate(unscaled<float>(tmp)), width, m_current_tool));
}
m_extrusions.emplace_back(WipeTower::Extrusion(rot, width, m_current_tool));
}
}
m_gcode += arc.direction == ArcDirection::Arc_Dir_CCW ? "G3" : "G2";
const Vec2f center_offset = this->rotate(unscaled<float>(arc.center)) - rotated_current_pos;
m_gcode += set_format_X(rot.x());
m_gcode += set_format_Y(rot.y());
m_gcode += set_format_I(center_offset.x());
m_gcode += set_format_J(center_offset.y());
if (e != 0.f) m_gcode += set_format_E(e);
if (f != 0.f && f != m_current_feedrate) {
if (limit_volumetric_flow) {
float e_speed = e / (((len == 0.f) ? std::abs(e) : len) / f * 60.f);
f /= std::max(1.f, e_speed / m_filpar[m_current_tool].max_e_speed);
}
m_gcode += set_format_F(f);
}
m_current_pos.x() = x;
m_current_pos.y() = y;
// Update the elapsed time with a rough estimate.
m_elapsed_time += ((len == 0.f) ? std::abs(e) : len) / m_current_feedrate * 60.f;
m_gcode += "\n";
return *this;
}
WipeTowerWriter& extrude_explicit(const Vec2f &dest, float e, float f = 0.f, bool record_length = false, bool limit_volumetric_flow = true)
{ return extrude_explicit(dest.x(), dest.y(), e, f, record_length); }
// Travel to a new XY position. f=0 means use the current value.
WipeTowerWriter& travel(float x, float y, float f = 0.f)
{ return extrude_explicit(x, y, 0.f, f); }
WipeTowerWriter& travel(const Vec2f &dest, float f = 0.f)
{ return extrude_explicit(dest.x(), dest.y(), 0.f, f); }
// Extrude a line from current position to x, y with the extrusion amount given by m_extrusion_flow.
WipeTowerWriter& extrude(float x, float y, float f = 0.f)
{
float dx = x - m_current_pos.x();
float dy = y - m_current_pos.y();
return extrude_explicit(x, y, std::sqrt(dx*dx+dy*dy) * m_extrusion_flow, f, true);
}
WipeTowerWriter &extrude_arc(ArcSegment &arc, float f = 0.f)
{
return extrude_arc_explicit(arc, f, true);
}
WipeTowerWriter& extrude(const Vec2f &dest, const float f = 0.f)
{ return extrude(dest.x(), dest.y(), f); }
WipeTowerWriter& rectangle(const Vec2f& ld,float width,float height,const float f = 0.f)
{
Vec2f corners[4];
corners[0] = ld;
corners[1] = ld + Vec2f(width,0.f);
corners[2] = ld + Vec2f(width,height);
corners[3] = ld + Vec2f(0.f,height);
int index_of_closest = 0;
if (x()-ld.x() > ld.x()+width-x()) // closer to the right
index_of_closest = 1;
if (y()-ld.y() > ld.y()+height-y()) // closer to the top
index_of_closest = (index_of_closest==0 ? 3 : 2);
travel(corners[index_of_closest].x(), y()); // travel to the closest corner
travel(x(),corners[index_of_closest].y());
int i = index_of_closest;
do {
++i;
if (i==4) i=0;
extrude(corners[i], f);
} while (i != index_of_closest);
return (*this);
}
WipeTowerWriter &rectangle_fill_box(const WipeTower* wipe_tower, const Vec2f &ld, float width, float height, const float f = 0.f)
{
bool need_change_flow = wipe_tower->need_thick_bridge_flow(ld.y());
Vec2f corners[4];
corners[0] = ld;
corners[1] = ld + Vec2f(width, 0.f);
corners[2] = ld + Vec2f(width, height);
corners[3] = ld + Vec2f(0.f, height);
int index_of_closest = 0;
if (x() - ld.x() > ld.x() + width - x()) // closer to the right
index_of_closest = 1;
if (y() - ld.y() > ld.y() + height - y()) // closer to the top
index_of_closest = (index_of_closest == 0 ? 3 : 2);
travel(corners[index_of_closest].x(), y()); // travel to the closest corner
travel(x(), corners[index_of_closest].y());
int i = index_of_closest;
bool flow_changed = false;
do {
++i;
if (i == 4) i = 0;
if (need_change_flow) {
if (i == 1) {
// using bridge flow in bridge area, and add notes for gcode-check when flow changed
set_extrusion_flow(wipe_tower->extrusion_flow(0.2));
append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Height) + std::to_string(0.2) + "\n");
flow_changed = true;
} else if (i == 2 && flow_changed) {
set_extrusion_flow(wipe_tower->get_extrusion_flow());
append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Height) + std::to_string(m_layer_height) + "\n");
}
}
extrude(corners[i], f);
} while (i != index_of_closest);
return (*this);
}
WipeTowerWriter& rectangle(const WipeTower::box_coordinates& box, const float f = 0.f)
{
rectangle(Vec2f(box.ld.x(), box.ld.y()),
box.ru.x() - box.lu.x(),
box.ru.y() - box.rd.y(), f);
return (*this);
}
WipeTowerWriter &polygon(const Polygon &wall_polygon, const float f = 0.f)
{
Polyline pl = to_polyline(wall_polygon);
pl.simplify_by_fitting_arc(SCALED_WIPE_TOWER_RESOLUTION);
auto get_closet_idx = [this](std::vector<Segment> &corners) -> int {
Vec2f anchor{this->m_current_pos.x(), this->m_current_pos.y()};
int closestIndex = -1;
float minDistance = std::numeric_limits<float>::max();
for (int i = 0; i < corners.size(); ++i) {
float distance = (corners[i].start - anchor).squaredNorm();
if (distance < minDistance) {
minDistance = distance;
closestIndex = i;
}
}
return closestIndex;
};
std::vector<Segment> segments;
for (int i = 0; i < pl.fitting_result.size(); i++) {
if (pl.fitting_result[i].path_type == EMovePathType::Linear_move) {
for (int j = pl.fitting_result[i].start_point_index; j < pl.fitting_result[i].end_point_index; j++)
segments.push_back({unscaled<float>(pl.points[j]), unscaled<float>(pl.points[j + 1])});
} else {
int beg = pl.fitting_result[i].start_point_index;
int end = pl.fitting_result[i].end_point_index;
segments.push_back({unscaled<float>(pl.points[beg]), unscaled<float>(pl.points[end])});
segments.back().is_arc = true;
segments.back().arcsegment = pl.fitting_result[i].arc_data;
}
}
int index_of_closest = get_closet_idx(segments);
int i = index_of_closest;
travel(segments[i].start); // travel to the closest points
segments[i].is_arc ? extrude_arc(segments[i].arcsegment, f) : extrude(segments[i].end, f);
do {
i = (i + 1) % segments.size();
if (i == index_of_closest) break;
segments[i].is_arc ? extrude_arc(segments[i].arcsegment, f) : extrude(segments[i].end, f);
} while (1);
return (*this);
}
WipeTowerWriter& load(float e, float f = 0.f)
{
if (e == 0.f && (f == 0.f || f == m_current_feedrate))
return *this;
m_gcode += "G1";
if (e != 0.f)
m_gcode += set_format_E(e);
if (f != 0.f && f != m_current_feedrate)
m_gcode += set_format_F(f);
m_gcode += "\n";
return *this;
}
WipeTowerWriter& retract(float e, float f = 0.f)
{ return load(-e, f); }
// Loads filament while also moving towards given points in x-axis (x feedrate is limited by cutting the distance short if necessary)
WipeTowerWriter& load_move_x_advanced(float farthest_x, float loading_dist, float loading_speed, float max_x_speed = 50.f)
{
float time = std::abs(loading_dist / loading_speed); // time that the move must take
float x_distance = std::abs(farthest_x - x()); // max x-distance that we can travel
float x_speed = x_distance / time; // x-speed to do it in that time
if (x_speed > max_x_speed) {
// Necessary x_speed is too high - we must shorten the distance to achieve max_x_speed and still respect the time.
x_distance = max_x_speed * time;
x_speed = max_x_speed;
}
float end_point = x() + (farthest_x > x() ? 1.f : -1.f) * x_distance;
return extrude_explicit(end_point, y(), loading_dist, x_speed * 60.f, false, false);
}
// Elevate the extruder head above the current print_z position.
WipeTowerWriter& z_hop(float hop, float f = 0.f)
{
m_gcode += std::string("G1") + set_format_Z(m_current_z + hop);
if (f != 0 && f != m_current_feedrate)
m_gcode += set_format_F(f);
m_gcode += "\n";
return *this;
}
// Lower the extruder head back to the current print_z position.
WipeTowerWriter& z_hop_reset(float f = 0.f)
{ return z_hop(0, f); }
// Move to x1, +y_increment,
// extrude quickly amount e to x2 with feed f.
WipeTowerWriter& ram(float x1, float x2, float dy, float e0, float e, float f)
{
extrude_explicit(x1, m_current_pos.y() + dy, e0, f, true, false);
extrude_explicit(x2, m_current_pos.y(), e, 0.f, true, false);
return *this;
}
// Let the end of the pulled out filament cool down in the cooling tube
// by moving up and down and moving the print head left / right
// at the current Y position to spread the leaking material.
WipeTowerWriter& cool(float x1, float x2, float e1, float e2, float f)
{
extrude_explicit(x1, m_current_pos.y(), e1, f, false, false);
extrude_explicit(x2, m_current_pos.y(), e2, false, false);
return *this;
}
WipeTowerWriter& set_tool(size_t tool)
{
m_current_tool = tool;
return *this;
}
// Set extruder temperature, don't wait by default.
WipeTowerWriter& set_extruder_temp(int temperature, bool wait = false)
{
m_gcode += "M" + std::to_string(wait ? 109 : 104) + " S" + std::to_string(temperature) + "\n";
return *this;
}
// Wait for a period of time (seconds).
WipeTowerWriter& wait(float time)
{
if (time==0.f)
return *this;
m_gcode += "G4 S" + Slic3r::float_to_string_decimal_point(time, 3) + "\n";
return *this;
}
// Set speed factor override percentage.
WipeTowerWriter& speed_override(int speed)
{
m_gcode += "M220 S" + std::to_string(speed) + "\n";
return *this;
}
// Let the firmware back up the active speed override value.
WipeTowerWriter& speed_override_backup()
{
// BBS: BBL machine don't support speed backup
#if 0
if (m_gcode_flavor == gcfMarlinLegacy || m_gcode_flavor == gcfMarlinFirmware)
m_gcode += "M220 B\n";
#endif
return *this;
}
// Let the firmware restore the active speed override value.
WipeTowerWriter& speed_override_restore()
{
// BBS: BBL machine don't support speed restore
#if 0
if (m_gcode_flavor == gcfMarlinLegacy || m_gcode_flavor == gcfMarlinFirmware)
m_gcode += "M220 R\n";
#endif
return *this;
}
// Set digital trimpot motor
WipeTowerWriter& set_extruder_trimpot(int current)
{
// BBS: don't control trimpot
#if 0
if (m_gcode_flavor == gcfRepRapSprinter || m_gcode_flavor == gcfRepRapFirmware)
m_gcode += "M906 E";
else
m_gcode += "M907 E";
m_gcode += std::to_string(current) + "\n";
#endif
return *this;
}
WipeTowerWriter& flush_planner_queue()
{
m_gcode += "G4 S0\n";
return *this;
}
// Reset internal extruder counter.
WipeTowerWriter& reset_extruder()
{
m_gcode += "G92 E0\n";
return *this;
}
WipeTowerWriter& comment_with_value(const char *comment, int value)
{
m_gcode += std::string(";") + comment + std::to_string(value) + "\n";
return *this;
}
WipeTowerWriter& set_fan(unsigned speed)
{
if (speed == m_last_fan_speed)
return *this;
if (speed == 0)
m_gcode += "M107\n";
else
m_gcode += "M106 S" + std::to_string(unsigned(255.0 * speed / 100.0)) + "\n";
m_last_fan_speed = speed;
return *this;
}
WipeTowerWriter& append(const std::string& text) { m_gcode += text; return *this; }
const std::vector<Vec2f>& wipe_path() const
{
return m_wipe_path;
}
WipeTowerWriter& add_wipe_point(const Vec2f& pt)
{
m_wipe_path.push_back(rotate(pt));
return *this;
}
WipeTowerWriter& add_wipe_point(float x, float y)
{
return add_wipe_point(Vec2f(x, y));
}
WipeTowerWriter &add_wipe_path(const Polygon & polygon,double wipe_dist)
{
int closest_idx = polygon.closest_point_index(scaled(m_current_pos));
Polyline wipe_path = polygon.split_at_index(closest_idx);
wipe_path.reverse();
for (int i = 0; i < wipe_path.size(); ++i) {
if (wipe_dist < EPSILON) break;
add_wipe_point(unscaled<float>(wipe_path[i]));
if (i != 0) wipe_dist -= (unscaled(wipe_path[i]) - unscaled(wipe_path[i - 1])).norm();
}
return *this;
}
void generate_path(Polylines &pls, float feedrate, float retract_length, float retract_speed, bool used_fillet)
{
auto get_closet_idx = [this](std::vector<Segment> &corners) -> int {
Vec2f anchor{this->m_current_pos.x(), this->m_current_pos.y()};
int closestIndex = -1;
float minDistance = std::numeric_limits<float>::max();
for (int i = 0; i < corners.size(); ++i) {
float distance = (corners[i].start - anchor).squaredNorm();
if (distance < minDistance) {
minDistance = distance;
closestIndex = i;
}
}
return closestIndex;
};
for (auto &pl : pls) pl.simplify_by_fitting_arc(SCALED_WIPE_TOWER_RESOLUTION);
std::vector<Segment> segments;
for (const auto &pl : pls) {
if (pl.points.size()<2) continue;
for (int i = 0; i < pl.fitting_result.size(); i++) {
if (pl.fitting_result[i].path_type == EMovePathType::Linear_move) {
for (int j = pl.fitting_result[i].start_point_index; j < pl.fitting_result[i].end_point_index; j++)
segments.push_back({unscaled<float>(pl.points[j]), unscaled<float>(pl.points[j + 1])});
} else {
int beg = pl.fitting_result[i].start_point_index;
int end = pl.fitting_result[i].end_point_index;
segments.push_back({unscaled<float>(pl.points[beg]), unscaled<float>(pl.points[end])});
segments.back().is_arc = true;
segments.back().arcsegment = pl.fitting_result[i].arc_data;
}
}
}
int index_of_closest = get_closet_idx(segments);
int i = index_of_closest;
travel(segments[i].start); // travel to the closest points
segments[i].is_arc? extrude_arc(segments[i].arcsegment,feedrate) : extrude(segments[i].end, feedrate);
do {
i = (i + 1) % segments.size();
if (i == index_of_closest) break;
float dx = segments[i].start.x() - m_current_pos.x();
float dy = segments[i].start.y() - m_current_pos.y();
float len = std::sqrt(dx * dx + dy * dy);
if (len > EPSILON) {
retract(retract_length, retract_speed);
travel(segments[i].start, 600.);
retract(-retract_length, retract_speed);
}
segments[i].is_arc ? extrude_arc(segments[i].arcsegment, feedrate) : extrude(segments[i].end, feedrate);
} while (1);
}
private:
Vec2f m_start_pos;
Vec2f m_current_pos;
std::vector<Vec2f> m_wipe_path;
float m_current_z;
float m_current_feedrate;
size_t m_current_tool;
float m_layer_height;
float m_extrusion_flow;
bool m_preview_suppressed;
std::string m_gcode;
std::vector<WipeTower::Extrusion> m_extrusions;
float m_elapsed_time;
float m_internal_angle = 0.f;
float m_y_shift = 0.f;
float m_wipe_tower_width = 0.f;
float m_wipe_tower_depth = 0.f;
unsigned m_last_fan_speed = 0;
int current_temp = -1;
#if ENABLE_GCODE_VIEWER_DATA_CHECKING
const float m_default_analyzer_line_width;
#endif // ENABLE_GCODE_VIEWER_DATA_CHECKING
float m_used_filament_length = 0.f;
GCodeFlavor m_gcode_flavor;
const std::vector<WipeTower::FilamentParameters>& m_filpar;
std::string set_format_X(float x)
{
m_current_pos.x() = x;
return " X" + Slic3r::float_to_string_decimal_point(x, 3);
}
std::string set_format_Y(float y) {
m_current_pos.y() = y;
return " Y" + Slic3r::float_to_string_decimal_point(y, 3);
}
std::string set_format_Z(float z) {
return " Z" + Slic3r::float_to_string_decimal_point(z, 3);
}
std::string set_format_E(float e) {
return " E" + Slic3r::float_to_string_decimal_point(e, 4);
}
std::string set_format_F(float f) {
char buf[64];
sprintf(buf, " F%d", int(floor(f + 0.5f)));
m_current_feedrate = f;
return buf;
}
std::string set_format_I(float i) { return " I" + Slic3r::float_to_string_decimal_point(i, 3); }
std::string set_format_J(float j) { return " J" + Slic3r::float_to_string_decimal_point(j, 3); }
WipeTowerWriter& operator=(const WipeTowerWriter &rhs);
// Rotate the point around center of the wipe tower about given angle (in degrees)
Vec2f rotate(Vec2f pt) const
{
pt.x() -= m_wipe_tower_width / 2.f;
pt.y() += m_y_shift - m_wipe_tower_depth / 2.f;
double angle = m_internal_angle * float(M_PI/180.);
double c = cos(angle);
double s = sin(angle);
return Vec2f(float(pt.x() * c - pt.y() * s) + m_wipe_tower_width / 2.f, float(pt.x() * s + pt.y() * c) + m_wipe_tower_depth / 2.f);
}
}; // class WipeTowerWriter
WipeTower::ToolChangeResult WipeTower::construct_tcr(WipeTowerWriter& writer,
bool priming,
size_t old_tool,
bool is_finish,
bool is_tool_change,
float purge_volume) const
{
ToolChangeResult result;
result.priming = priming;
result.initial_tool = int(old_tool);
result.new_tool = int(m_current_tool);
result.print_z = m_z_pos;
result.layer_height = m_layer_height;
result.elapsed_time = writer.elapsed_time();
result.start_pos = writer.start_pos_rotated();
result.end_pos = priming ? writer.pos() : writer.pos_rotated();
result.gcode = std::move(writer.gcode());
result.extrusions = std::move(writer.extrusions());
result.wipe_path = std::move(writer.wipe_path());
result.is_finish_first = is_finish;
result.nozzle_change_result = m_nozzle_change_result;
result.is_tool_change = is_tool_change;
result.tool_change_start_pos = is_tool_change ? result.start_pos : Vec2f(0, 0);
// BBS
result.purge_volume = purge_volume;
return result;
}
WipeTower::ToolChangeResult WipeTower::construct_block_tcr(WipeTowerWriter &writer, bool priming, size_t filament_id, bool is_finish, float purge_volume) const
{
ToolChangeResult result;
result.priming = priming;
result.initial_tool = int(filament_id);
result.new_tool = int(filament_id);
result.print_z = m_z_pos;
result.layer_height = m_layer_height;
result.elapsed_time = writer.elapsed_time();
result.start_pos = writer.start_pos_rotated();
result.end_pos = priming ? writer.pos() : writer.pos_rotated();
result.gcode = std::move(writer.gcode());
result.extrusions = std::move(writer.extrusions());
result.wipe_path = std::move(writer.wipe_path());
result.is_finish_first = is_finish;
result.is_tool_change = false;
result.tool_change_start_pos = Vec2f(0, 0);
// BBS
result.purge_volume = purge_volume;
return result;
}
// BBS
const std::map<float, float> WipeTower::min_depth_per_height = {
{10.f, 10.f}, {100.f, 20.f}, {180.f, 40.f}, {250.f, 50.f}, {350.f, 60.f}
};
float WipeTower::get_limit_depth_by_height(float max_height)
{
float min_wipe_tower_depth = 0.f;
auto iter = WipeTower::min_depth_per_height.begin();
while (iter != WipeTower::min_depth_per_height.end()) {
auto curr_height_to_depth = *iter;
// This is the case that wipe tower height is lower than the first min_depth_to_height member.
if (curr_height_to_depth.first >= max_height) {
min_wipe_tower_depth = curr_height_to_depth.second;
break;
}
iter++;
// If curr_height_to_depth is the last member, use its min_depth.
if (iter == WipeTower::min_depth_per_height.end()) {
min_wipe_tower_depth = curr_height_to_depth.second;
break;
}
// If wipe tower height is between the current and next member, set the min_depth as linear interpolation between them
auto next_height_to_depth = *iter;
if (next_height_to_depth.first > max_height) {
float height_base = curr_height_to_depth.first;
float height_diff = next_height_to_depth.first - curr_height_to_depth.first;
float min_depth_base = curr_height_to_depth.second;
float depth_diff = next_height_to_depth.second - curr_height_to_depth.second;
min_wipe_tower_depth = min_depth_base + (max_height - curr_height_to_depth.first) / height_diff * depth_diff;
break;
}
}
return min_wipe_tower_depth;
}
WipeTower::WipeTower(const PrintConfig& config, int plate_idx, Vec3d plate_origin, const float prime_volume, size_t initial_tool, const float wipe_tower_height) :
m_semm(config.single_extruder_multi_material.value),
m_wipe_tower_pos(config.wipe_tower_x.get_at(plate_idx), config.wipe_tower_y.get_at(plate_idx)),
m_wipe_tower_width(float(config.prime_tower_width)),
// BBS
m_wipe_tower_height(wipe_tower_height),
m_wipe_tower_rotation_angle(float(config.wipe_tower_rotation_angle)),
m_wipe_tower_brim_width(float(config.prime_tower_brim_width)),
m_y_shift(0.f),
m_z_pos(0.f),
//m_bridging(float(config.wipe_tower_bridging)),
m_bridging(10.f),
m_no_sparse_layers(config.wipe_tower_no_sparse_layers),
m_gcode_flavor(config.gcode_flavor),
m_travel_speed(config.travel_speed),
m_current_tool(initial_tool),
//wipe_volumes(flush_matrix)
m_wipe_volume(prime_volume),
m_enable_timelapse_print(config.timelapse_type.value == TimelapseType::tlSmooth),
m_nozzle_change_length(config.extruder_change_length.get_at(0)),
m_filaments_change_length(config.filament_change_length.values),
m_is_multi_extruder(config.nozzle_diameter.size() > 1),
m_is_print_outer_first(config.prime_tower_outer_first.value),
m_use_gap_wall(config.prime_tower_skip_points.value),
m_use_rib_wall(config.prime_tower_rib_wall.value),
m_extra_rib_length(config.prime_tower_extra_rib_length.value),
m_rib_width(config.prime_tower_rib_width.value),
m_used_fillet(config.prime_tower_fillet_wall.value)
{
// Read absolute value of first layer speed, if given as percentage,
// it is taken over following default. Speeds from config are not
// easily accessible here.
const float default_speed = 60.f;
m_first_layer_speed = config.get_abs_value("initial_layer_speed");
if (m_first_layer_speed == 0.f) // just to make sure autospeed doesn't break it.
m_first_layer_speed = default_speed / 2.f;
// If this is a single extruder MM printer, we will use all the SE-specific config values.
// Otherwise, the defaults will be used to turn off the SE stuff.
// BBS: remove useless config
#if 0
if (m_semm) {
m_cooling_tube_retraction = float(config.cooling_tube_retraction);
m_cooling_tube_length = float(config.cooling_tube_length);
m_parking_pos_retraction = float(config.parking_pos_retraction);
m_extra_loading_move = float(config.extra_loading_move);
m_set_extruder_trimpot = config.high_current_on_filament_swap;
}
#endif
// Calculate where the priming lines should be - very naive test not detecting parallelograms etc.
const std::vector<Vec2d>& bed_points = config.printable_area.values;
BoundingBoxf bb(bed_points);
m_bed_width = float(bb.size().x());
m_bed_shape = (bed_points.size() == 4 ? RectangularBed : CircularBed);
if (m_bed_shape == CircularBed) {
// this may still be a custom bed, check that the points are roughly on a circle
double r2 = std::pow(m_bed_width/2., 2.);
double lim2 = std::pow(m_bed_width/10., 2.);
Vec2d center = bb.center();
for (const Vec2d& pt : bed_points)
if (std::abs(std::pow(pt.x()-center.x(), 2.) + std::pow(pt.y()-center.y(), 2.) - r2) > lim2) {
m_bed_shape = CustomBed;
break;
}
}
m_bed_bottom_left = m_bed_shape == RectangularBed
? Vec2f(bed_points.front().x(), bed_points.front().y())
: Vec2f::Zero();
}
void WipeTower::set_extruder(size_t idx, const PrintConfig& config)
{
//while (m_filpar.size() < idx+1) // makes sure the required element is in the vector
m_filpar.push_back(FilamentParameters());
m_filpar[idx].material = config.filament_type.get_at(idx);
m_filpar[idx].is_soluble = config.filament_soluble.get_at(idx);
// BBS
m_filpar[idx].is_support = config.filament_is_support.get_at(idx);
m_filpar[idx].nozzle_temperature = config.nozzle_temperature.get_at(idx);
m_filpar[idx].nozzle_temperature_initial_layer = config.nozzle_temperature_initial_layer.get_at(idx);
m_filpar[idx].category = config.filament_category.get_at(idx);
// If this is a single extruder MM printer, we will use all the SE-specific config values.
// Otherwise, the defaults will be used to turn off the SE stuff.
// BBS: remove useless config
#if 0
if (m_semm) {
m_filpar[idx].loading_speed = float(config.filament_loading_speed.get_at(idx));
m_filpar[idx].loading_speed_start = float(config.filament_loading_speed_start.get_at(idx));
m_filpar[idx].unloading_speed = float(config.filament_unloading_speed.get_at(idx));
m_filpar[idx].unloading_speed_start = float(config.filament_unloading_speed_start.get_at(idx));
m_filpar[idx].delay = float(config.filament_toolchange_delay.get_at(idx));
m_filpar[idx].cooling_moves = config.filament_cooling_moves.get_at(idx);
m_filpar[idx].cooling_initial_speed = float(config.filament_cooling_initial_speed.get_at(idx));
m_filpar[idx].cooling_final_speed = float(config.filament_cooling_final_speed.get_at(idx));
}
#endif
m_filpar[idx].filament_area = float((M_PI/4.f) * pow(config.filament_diameter.get_at(idx), 2)); // all extruders are assumed to have the same filament diameter at this point
float nozzle_diameter = float(config.nozzle_diameter.get_at(idx));
m_filpar[idx].nozzle_diameter = nozzle_diameter; // to be used in future with (non-single) multiextruder MM
float max_vol_speed = float(config.filament_max_volumetric_speed.get_at(idx));
if (max_vol_speed!= 0.f)
m_filpar[idx].max_e_speed = (max_vol_speed / filament_area());
m_perimeter_width = nozzle_diameter * Width_To_Nozzle_Ratio; // all extruders are now assumed to have the same diameter
// BBS: remove useless config
#if 0
if (m_semm) {
std::istringstream stream{config.filament_ramming_parameters.get_at(idx)};
float speed = 0.f;
stream >> m_filpar[idx].ramming_line_width_multiplicator >> m_filpar[idx].ramming_step_multiplicator;
m_filpar[idx].ramming_line_width_multiplicator /= 100;
m_filpar[idx].ramming_step_multiplicator /= 100;
while (stream >> speed)
m_filpar[idx].ramming_speed.push_back(speed);
}
#endif
m_used_filament_length.resize(std::max(m_used_filament_length.size(), idx + 1)); // makes sure that the vector is big enough so we don't have to check later
m_filpar[idx].retract_length = config.retraction_length.get_at(idx);
m_filpar[idx].retract_speed = config.retraction_speed.get_at(idx);
m_filpar[idx].wipe_dist = config.wipe_distance.get_at(idx);
}
// Returns gcode to prime the nozzles at the front edge of the print bed.
std::vector<WipeTower::ToolChangeResult> WipeTower::prime(
// print_z of the first layer.
float initial_layer_print_height,
// Extruder indices, in the order to be primed. The last extruder will later print the wipe tower brim, print brim and the object.
const std::vector<unsigned int> &tools,
// If true, the last priming are will be the same as the other priming areas, and the rest of the wipe will be performed inside the wipe tower.
// If false, the last priming are will be large enough to wipe the last extruder sufficiently.
bool /*last_wipe_inside_wipe_tower*/)
{
return std::vector<ToolChangeResult>();
}
Vec2f WipeTower::get_next_pos(const WipeTower::box_coordinates &cleaning_box, float wipe_length)
{
const float &xl = cleaning_box.ld.x();
const float &xr = cleaning_box.rd.x();
int line_count = wipe_length / (xr - xl);
float dy = m_layer_info->extra_spacing * m_perimeter_width;
float y_offset = float(line_count) * dy;
const Vec2f pos_offset = Vec2f(0.f, m_depth_traversed);
Vec2f res;
int index = m_cur_layer_id % 4;
Vec2f offset = m_use_gap_wall ? Vec2f(5 * m_perimeter_width, 0) : Vec2f{0, 0};
switch (index % 4) {
case 0:
res = offset +cleaning_box.ld + pos_offset;
break;
case 1:
res = -offset +cleaning_box.rd + pos_offset + Vec2f(0, y_offset);
break;
case 2:
res = -offset+ cleaning_box.rd + pos_offset;
break;
case 3:
res = offset+cleaning_box.ld + pos_offset + Vec2f(0, y_offset);
break;
default: break;
}
return res;
}
WipeTower::ToolChangeResult WipeTower::tool_change(size_t tool, bool extrude_perimeter, bool first_toolchange_to_nonsoluble)
{
m_nozzle_change_result.gcode.clear();
if (!m_filament_map.empty() && tool < m_filament_map.size() && m_filament_map[m_current_tool] != m_filament_map[tool]) {
m_nozzle_change_result = nozzle_change(m_current_tool, tool);
}
size_t old_tool = m_current_tool;
float wipe_depth = 0.f;
float wipe_length = 0.f;
float purge_volume = 0.f;
float nozzle_change_depth = 0.f;
// Finds this toolchange info
if (tool != (unsigned int)(-1))
{
for (const auto &b : m_layer_info->tool_changes)
if ( b.new_tool == tool ) {
wipe_length = b.wipe_length;
wipe_depth = b.required_depth;
purge_volume = b.purge_volume;
nozzle_change_depth = b.nozzle_change_depth;
break;
}
}
else {
// Otherwise we are going to Unload only. And m_layer_info would be invalid.
}
box_coordinates cleaning_box(
Vec2f(m_perimeter_width, m_perimeter_width),
m_wipe_tower_width - 2 * m_perimeter_width,
(tool != (unsigned int)(-1) ? wipe_depth + m_depth_traversed - m_perimeter_width
: m_wipe_tower_depth - m_perimeter_width));
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(m_current_tool)
.set_y_shift(m_y_shift + (tool!=(unsigned int)(-1) && (m_current_shape == SHAPE_REVERSED) ? m_layer_info->depth - m_layer_info->toolchanges_depth(): 0.f))
.append(";--------------------\n"
"; CP TOOLCHANGE START\n")
.comment_with_value(" toolchange #", m_num_tool_changes + 1); // the number is zero-based
if (tool != (unsigned)(-1))
writer.append(std::string("; material : " + (m_current_tool < m_filpar.size() ? m_filpar[m_current_tool].material : "(NONE)") + " -> " + m_filpar[tool].material + "\n").c_str())
.append(";--------------------\n");
writer.speed_override_backup();
writer.speed_override(100);
float feedrate = is_first_layer() ? std::min(m_first_layer_speed * 60.f, 5400.f) : std::min(60.0f * m_filpar[m_current_tool].max_e_speed / m_extrusion_flow, 5400.f);
// Increase the extruder driver current to allow fast ramming.
//BBS
//if (m_set_extruder_trimpot)
// writer.set_extruder_trimpot(750);
// Ram the hot material out of the melt zone, retract the filament into the cooling tubes and let it cool.
if (tool != (unsigned int)-1){ // This is not the last change.
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_Start) + "\n");
toolchange_Unload(writer, cleaning_box, m_filpar[m_current_tool].material,
is_first_layer() ? m_filpar[tool].nozzle_temperature_initial_layer : m_filpar[tool].nozzle_temperature);
toolchange_Change(writer, tool, m_filpar[tool].material); // Change the tool, set a speed override for soluble and flex materials.
toolchange_Load(writer, cleaning_box);
// BBS
//writer.travel(writer.x(), writer.y()-m_perimeter_width); // cooling and loading were done a bit down the road
if (m_is_multi_extruder && is_tpu_filament(tool)) {
float dy = 2 * m_perimeter_width;
float nozzle_change_speed = 60.0f * m_filpar[tool].max_e_speed / m_extrusion_flow;
nozzle_change_speed *= 0.25;
const float &xl = cleaning_box.ld.x();
const float &xr = cleaning_box.rd.x();
Vec2f start_pos = m_nozzle_change_result.start_pos + Vec2f(0, m_perimeter_width);
bool left_to_right = true;
double tpu_travel_length = 5;
double e_flow = extrusion_flow(0.2);
double length = tpu_travel_length / e_flow;
int tpu_line_count = length / (m_wipe_tower_width - 2 * m_perimeter_width) + 1;
writer.travel(start_pos);
for (int i = 0; true; ++i) {
if (left_to_right)
writer.travel(xr - m_perimeter_width, writer.y(), nozzle_change_speed);
else
writer.travel(xl + m_perimeter_width, writer.y(), nozzle_change_speed);
if (i == tpu_line_count - 1)
break;
writer.travel(writer.x(), writer.y() + dy);
left_to_right = !left_to_right;
}
}
Vec2f initial_position = get_next_pos(cleaning_box, wipe_length);
writer.set_initial_position(initial_position, m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
if (extrude_perimeter && m_is_print_outer_first) {
box_coordinates wt_box(Vec2f(0.f, (m_current_shape == SHAPE_REVERSED) ? m_layer_info->toolchanges_depth() - m_layer_info->depth : 0.f), m_wipe_tower_width,
m_layer_info->depth + m_perimeter_width);
// align the perimeter
Vec2f pos = initial_position;
switch (m_cur_layer_id % 4){
case 0:
pos = wt_box.ld;
break;
case 1:
pos = wt_box.rd;
break;
case 2:
pos = wt_box.ru;
break;
case 3:
pos = wt_box.lu;
break;
default: break;
}
writer.set_initial_position(pos, m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
wt_box = align_perimeter(wt_box);
writer.rectangle(wt_box, feedrate);
}
writer.travel(initial_position);
toolchange_Wipe(writer, cleaning_box, wipe_length); // Wipe the newly loaded filament until the end of the assigned wipe area.
if (extrude_perimeter && !m_is_print_outer_first) {
box_coordinates wt_box(Vec2f(0.f, (m_current_shape == SHAPE_REVERSED) ? m_layer_info->toolchanges_depth() - m_layer_info->depth : 0.f), m_wipe_tower_width,
m_layer_info->depth + m_perimeter_width);
// align the perimeter
wt_box = align_perimeter(wt_box);
writer.rectangle(wt_box, feedrate);
}
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_End) + "\n");
++ m_num_tool_changes;
} else
toolchange_Unload(writer, cleaning_box, m_filpar[m_current_tool].material, m_filpar[m_current_tool].nozzle_temperature);
m_depth_traversed += (wipe_depth - nozzle_change_depth);
//BBS
//if (m_set_extruder_trimpot)
// writer.set_extruder_trimpot(550); // Reset the extruder current to a normal value.
writer.speed_override_restore();
writer.feedrate(m_travel_speed * 60.f)
.flush_planner_queue()
.reset_extruder()
.append("; CP TOOLCHANGE END\n"
";------------------\n"
"\n\n");
// Ask our writer about how much material was consumed:
if (m_current_tool < m_used_filament_length.size())
m_used_filament_length[m_current_tool] += writer.get_and_reset_used_filament_length();
return construct_tcr(writer, false, old_tool, false, true, purge_volume);
}
WipeTower::NozzleChangeResult WipeTower::nozzle_change(int old_filament_id, int new_filament_id)
{
float wipe_depth = 0.f;
float wipe_length = 0.f;
float purge_volume = 0.f;
int nozzle_change_line_count = 0;
// Finds this toolchange info
if (new_filament_id != (unsigned int) (-1)) {
for (const auto &b : m_layer_info->tool_changes)
if (b.new_tool == new_filament_id) {
wipe_length = b.wipe_length;
wipe_depth = b.required_depth;
purge_volume = b.purge_volume;
if (has_tpu_filament())
nozzle_change_line_count = ((b.nozzle_change_depth + WT_EPSILON) / m_perimeter_width) / 2;
else
nozzle_change_line_count = (b.nozzle_change_depth + WT_EPSILON) / m_perimeter_width;
break;
}
} else {
// Otherwise we are going to Unload only. And m_layer_info would be invalid.
}
float nozzle_change_speed = 60.0f * m_filpar[m_current_tool].max_e_speed / m_extrusion_flow;
if (is_tpu_filament(m_current_tool)) {
nozzle_change_speed *= 0.25;
}
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(m_current_tool)
.set_extrusion_flow(m_extrusion_flow)
.set_y_shift(m_y_shift + (new_filament_id != (unsigned int) (-1) && (m_current_shape == SHAPE_REVERSED) ? m_layer_info->depth - m_layer_info->toolchanges_depth() : 0.f))
.append("; Nozzle change start\n");
box_coordinates cleaning_box(Vec2f(m_perimeter_width, m_perimeter_width), m_wipe_tower_width - 2 * m_perimeter_width,
(new_filament_id != (unsigned int) (-1) ? wipe_depth + m_depth_traversed - m_perimeter_width : m_wipe_tower_depth - m_perimeter_width));
Vec2f initial_position = cleaning_box.ld + Vec2f(0.f, m_depth_traversed);
writer.set_initial_position(initial_position, m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
const float &xl = cleaning_box.ld.x();
const float &xr = cleaning_box.rd.x();
float dy = m_layer_info->extra_spacing * m_perimeter_width;
if (has_tpu_filament())
dy = 2 * m_perimeter_width;
float start_y = writer.y();
m_left_to_right = true;
bool need_change_flow = false;
// now the wiping itself:
for (int i = 0; true; ++i) {
if (m_left_to_right)
writer.extrude(xr + wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), nozzle_change_speed);
else
writer.extrude(xl - wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), nozzle_change_speed);
if (writer.y() - float(EPSILON) > cleaning_box.lu.y())
break; // in case next line would not fit
if (i == nozzle_change_line_count - 1)
break;
// stepping to the next line:
writer.extrude(writer.x(), writer.y() + dy);
m_left_to_right = !m_left_to_right;
}
writer.set_extrusion_flow(m_extrusion_flow); // Reset the extrusion flow.
m_depth_traversed += nozzle_change_line_count * dy;
NozzleChangeResult result;
if (is_tpu_filament(m_current_tool))
{
bool left_to_right = !m_left_to_right;
double tpu_travel_length = 5;
double e_flow = extrusion_flow(0.2);
double length = tpu_travel_length / e_flow;
int tpu_line_count = length / (m_wipe_tower_width - 2 * m_perimeter_width) + 1;
writer.travel(writer.x(), writer.y() - m_perimeter_width);
for (int i = 0; true; ++i) {
if (left_to_right)
writer.travel(xr - m_perimeter_width, writer.y(), nozzle_change_speed);
else
writer.travel(xl + m_perimeter_width, writer.y(), nozzle_change_speed);
if (i == tpu_line_count - 1)
break;
writer.travel(writer.x(), writer.y() - dy);
left_to_right = !left_to_right;
}
}
else {
result.wipe_path.push_back(writer.pos());
if (m_left_to_right) {
result.wipe_path.push_back(Vec2f(0, writer.y()));
} else {
result.wipe_path.push_back(Vec2f(m_wipe_tower_width, writer.y()));
}
}
writer.append("; Nozzle change end\n");
result.start_pos = writer.start_pos_rotated();
result.end_pos = writer.pos();
result.gcode = std::move(writer.gcode());
return result;
}
// Ram the hot material out of the melt zone, retract the filament into the cooling tubes and let it cool.
void WipeTower::toolchange_Unload(
WipeTowerWriter &writer,
const box_coordinates &cleaning_box,
const std::string& current_material,
const int new_temperature)
{
// BBS: toolchange unload is done in change_filament_gcode
#if 0
float xl = cleaning_box.ld.x() + 1.f * m_perimeter_width;
float xr = cleaning_box.rd.x() - 1.f * m_perimeter_width;
const float line_width = m_perimeter_width * m_filpar[m_current_tool].ramming_line_width_multiplicator; // desired ramming line thickness
const float y_step = line_width * m_filpar[m_current_tool].ramming_step_multiplicator * m_extra_spacing; // spacing between lines in mm
writer.append("; CP TOOLCHANGE UNLOAD\n")
.change_analyzer_line_width(line_width);
unsigned i = 0; // iterates through ramming_speed
m_left_to_right = true; // current direction of ramming
float remaining = xr - xl ; // keeps track of distance to the next turnaround
float e_done = 0; // measures E move done from each segment
writer.travel(xl, cleaning_box.ld.y() + m_depth_traversed + y_step/2.f ); // move to starting position
// if the ending point of the ram would end up in mid air, align it with the end of the wipe tower:
if (m_layer_info > m_plan.begin() && m_layer_info < m_plan.end() && (m_layer_info-1!=m_plan.begin() || !m_adhesion )) {
// this is y of the center of previous sparse infill border
float sparse_beginning_y = 0.f;
if (m_current_shape == SHAPE_REVERSED)
sparse_beginning_y += ((m_layer_info-1)->depth - (m_layer_info-1)->toolchanges_depth())
- ((m_layer_info)->depth-(m_layer_info)->toolchanges_depth()) ;
else
sparse_beginning_y += (m_layer_info-1)->toolchanges_depth() + m_perimeter_width;
float sum_of_depths = 0.f;
for (const auto& tch : m_layer_info->tool_changes) { // let's find this toolchange
if (tch.old_tool == m_current_tool) {
sum_of_depths += tch.ramming_depth;
float ramming_end_y = sum_of_depths;
ramming_end_y -= (y_step/m_extra_spacing-m_perimeter_width) / 2.f; // center of final ramming line
if ( (m_current_shape == SHAPE_REVERSED && ramming_end_y < sparse_beginning_y - 0.5f*m_perimeter_width ) ||
(m_current_shape == SHAPE_NORMAL && ramming_end_y > sparse_beginning_y + 0.5f*m_perimeter_width ) )
{
writer.extrude(xl + tch.first_wipe_line-1.f*m_perimeter_width,writer.y());
remaining -= tch.first_wipe_line-1.f*m_perimeter_width;
}
break;
}
sum_of_depths += tch.required_depth;
}
}
writer.disable_linear_advance();
// now the ramming itself:
while (i < m_filpar[m_current_tool].ramming_speed.size())
{
const float x = volume_to_length(m_filpar[m_current_tool].ramming_speed[i] * 0.25f, line_width, m_layer_height);
const float e = m_filpar[m_current_tool].ramming_speed[i] * 0.25f / filament_area(); // transform volume per sec to E move;
const float dist = std::min(x - e_done, remaining); // distance to travel for either the next 0.25s, or to the next turnaround
const float actual_time = dist/x * 0.25f;
writer.ram(writer.x(), writer.x() + (m_left_to_right ? 1.f : -1.f) * dist, 0.f, 0.f, e * (dist / x), dist / (actual_time / 60.f));
remaining -= dist;
if (remaining < WT_EPSILON) { // we reached a turning point
writer.travel(writer.x(), writer.y() + y_step, 7200);
m_left_to_right = !m_left_to_right;
remaining = xr - xl;
}
e_done += dist; // subtract what was actually done
if (e_done > x - WT_EPSILON) { // current segment finished
++i;
e_done = 0;
}
}
Vec2f end_of_ramming(writer.x(),writer.y());
writer.change_analyzer_line_width(m_perimeter_width); // so the next lines are not affected by ramming_line_width_multiplier
// Retraction:
float old_x = writer.x();
float turning_point = (!m_left_to_right ? xl : xr );
if (m_semm && (m_cooling_tube_retraction != 0 || m_cooling_tube_length != 0)) {
float total_retraction_distance = m_cooling_tube_retraction + m_cooling_tube_length/2.f - 15.f; // the 15mm is reserved for the first part after ramming
writer.suppress_preview()
.retract(15.f, m_filpar[m_current_tool].unloading_speed_start * 60.f) // feedrate 5000mm/min = 83mm/s
.retract(0.70f * total_retraction_distance, 1.0f * m_filpar[m_current_tool].unloading_speed * 60.f)
.retract(0.20f * total_retraction_distance, 0.5f * m_filpar[m_current_tool].unloading_speed * 60.f)
.retract(0.10f * total_retraction_distance, 0.3f * m_filpar[m_current_tool].unloading_speed * 60.f)
.resume_preview();
}
// Wipe tower should only change temperature with single extruder MM. Otherwise, all temperatures should
// be already set and there is no need to change anything. Also, the temperature could be changed
// for wrong extruder.
if (m_semm) {
if (new_temperature != 0 && (new_temperature != m_old_temperature || is_first_layer()) ) { // Set the extruder temperature, but don't wait.
// If the required temperature is the same as last time, don't emit the M104 again (if user adjusted the value, it would be reset)
// However, always change temperatures on the first layer (this is to avoid issues with priming lines turned off).
writer.set_extruder_temp(new_temperature, false);
m_old_temperature = new_temperature;
}
}
// Cooling:
const int& number_of_moves = m_filpar[m_current_tool].cooling_moves;
if (number_of_moves > 0) {
const float& initial_speed = m_filpar[m_current_tool].cooling_initial_speed;
const float& final_speed = m_filpar[m_current_tool].cooling_final_speed;
float speed_inc = (final_speed - initial_speed) / (2.f * number_of_moves - 1.f);
writer.suppress_preview()
.travel(writer.x(), writer.y() + y_step);
old_x = writer.x();
turning_point = xr-old_x > old_x-xl ? xr : xl;
for (int i=0; i<number_of_moves; ++i) {
float speed = initial_speed + speed_inc * 2*i;
writer.load_move_x_advanced(turning_point, m_cooling_tube_length, speed);
speed += speed_inc;
writer.load_move_x_advanced(old_x, -m_cooling_tube_length, speed);
}
}
// let's wait is necessary:
writer.wait(m_filpar[m_current_tool].delay);
// we should be at the beginning of the cooling tube again - let's move to parking position:
writer.retract(-m_cooling_tube_length/2.f+m_parking_pos_retraction-m_cooling_tube_retraction, 2000);
// this is to align ramming and future wiping extrusions, so the future y-steps can be uniform from the start:
// the perimeter_width will later be subtracted, it is there to not load while moving over just extruded material
writer.travel(end_of_ramming.x(), end_of_ramming.y() + (y_step/m_extra_spacing-m_perimeter_width) / 2.f + m_perimeter_width, 2400.f);
writer.resume_preview()
.flush_planner_queue();
#endif
}
// Change the tool, set a speed override for soluble and flex materials.
void WipeTower::toolchange_Change(
WipeTowerWriter &writer,
const size_t new_tool,
const std::string& new_material)
{
// Ask the writer about how much of the old filament we consumed:
if (m_current_tool < m_used_filament_length.size())
m_used_filament_length[m_current_tool] += writer.get_and_reset_used_filament_length();
// This is where we want to place the custom gcodes. We will use placeholders for this.
// These will be substituted by the actual gcodes when the gcode is generated.
writer.append("[filament_end_gcode]\n");
writer.append("[change_filament_gcode]\n");
// BBS: do travel in GCode::append_tcr() for lazy_lift
#if 0
// Travel to where we assume we are. Custom toolchange or some special T code handling (parking extruder etc)
// gcode could have left the extruder somewhere, we cannot just start extruding. We should also inform the
// postprocessor that we absolutely want to have this in the gcode, even if it thought it is the same as before.
Vec2f current_pos = writer.pos_rotated();
writer.feedrate(m_travel_speed * 60.f)
.append(std::string("G1 X") + Slic3r::float_to_string_decimal_point(current_pos.x())
+ " Y" + Slic3r::float_to_string_decimal_point(current_pos.y())
+ never_skip_tag() + "\n");
#endif
// The toolchange Tn command will be inserted later, only in case that the user does
// not provide a custom toolchange gcode.
writer.set_tool(new_tool); // This outputs nothing, the writer just needs to know the tool has changed.
writer.append("[filament_start_gcode]\n");
writer.flush_planner_queue();
m_current_tool = new_tool;
}
void WipeTower::toolchange_Load(
WipeTowerWriter &writer,
const box_coordinates &cleaning_box)
{
// BBS: tool load is done in change_filament_gcode
#if 0
if (m_semm && (m_parking_pos_retraction != 0 || m_extra_loading_move != 0)) {
float xl = cleaning_box.ld.x() + m_perimeter_width * 0.75f;
float xr = cleaning_box.rd.x() - m_perimeter_width * 0.75f;
float oldx = writer.x(); // the nozzle is in place to do the first wiping moves, we will remember the position
// Load the filament while moving left / right, so the excess material will not create a blob at a single position.
float turning_point = ( oldx-xl < xr-oldx ? xr : xl );
float edist = m_parking_pos_retraction+m_extra_loading_move;
writer.append("; CP TOOLCHANGE LOAD\n")
.suppress_preview()
.load(0.2f * edist, 60.f * m_filpar[m_current_tool].loading_speed_start)
.load_move_x_advanced(turning_point, 0.7f * edist, m_filpar[m_current_tool].loading_speed) // Fast phase
.load_move_x_advanced(oldx, 0.1f * edist, 0.1f * m_filpar[m_current_tool].loading_speed) // Super slow*/
.travel(oldx, writer.y()) // in case last move was shortened to limit x feedrate
.resume_preview();
// Reset the extruder current to the normal value.
if (m_set_extruder_trimpot)
writer.set_extruder_trimpot(550);
}
#endif
}
// Wipe the newly loaded filament until the end of the assigned wipe area.
void WipeTower::toolchange_Wipe(
WipeTowerWriter &writer,
const box_coordinates &cleaning_box,
float wipe_length)
{
// Increase flow on first layer, slow down print.
writer.set_extrusion_flow(m_extrusion_flow * (is_first_layer() ? 1.15f : 1.f))
.append("; CP TOOLCHANGE WIPE\n");
// BBS: add the note for gcode-check, when the flow changed, the width should follow the change
if (is_first_layer()) {
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Width) + std::to_string(1.15 * m_perimeter_width) + "\n");
}
const float& xl = cleaning_box.ld.x();
const float& xr = cleaning_box.rd.x();
// Variables x_to_wipe and traversed_x are here to be able to make sure it always wipes at least
// the ordered volume, even if it means violating the box. This can later be removed and simply
// wipe until the end of the assigned area.
float x_to_wipe = wipe_length;
float dy = m_layer_info->extra_spacing * m_perimeter_width;
const float target_speed = is_first_layer() ? std::min(m_first_layer_speed * 60.f, 4800.f) : 4800.f;
float wipe_speed = 0.33f * target_speed;
float start_y = writer.y();
#if 0
// if there is less than 2.5*m_perimeter_width to the edge, advance straightaway (there is likely a blob anyway)
if ((m_left_to_right ? xr-writer.x() : writer.x()-xl) < 2.5f*m_perimeter_width) {
writer.travel((m_left_to_right ? xr-m_perimeter_width : xl+m_perimeter_width),writer.y()+dy);
m_left_to_right = !m_left_to_right;
}
#endif
m_left_to_right = ((m_cur_layer_id + 3) % 4 >= 2);
bool is_from_up = (m_cur_layer_id % 2 == 1);
// BBS: do not need to move dy
#if 0
if (m_depth_traversed != 0)
writer.travel(xl, writer.y() + dy);
#endif
bool need_change_flow = false;
// now the wiping itself:
for (int i = 0; true; ++i) {
if (i!=0) {
if (wipe_speed < 0.34f * target_speed) wipe_speed = 0.375f * target_speed;
else if (wipe_speed < 0.377 * target_speed) wipe_speed = 0.458f * target_speed;
else if (wipe_speed < 0.46f * target_speed) wipe_speed = 0.875f * target_speed;
else wipe_speed = std::min(target_speed, wipe_speed + 50.f);
}
// BBS: check the bridging area and use the bridge flow
if (need_change_flow || need_thick_bridge_flow(writer.y())) {
writer.set_extrusion_flow(extrusion_flow(0.2));
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Height) + std::to_string(0.2) + "\n");
need_change_flow = true;
}
if (m_left_to_right)
writer.extrude(xr + wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), wipe_speed);
else
writer.extrude(xl - wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), wipe_speed);
// BBS: recover the flow in non-bridging area
if (need_change_flow) {
writer.set_extrusion_flow(m_extrusion_flow);
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Height) + std::to_string(m_layer_height) + "\n");
}
if (!is_from_up && (writer.y() - float(EPSILON) > cleaning_box.lu.y()))
break; // in case next line would not fit
if (is_from_up && (writer.y() + float(EPSILON) < cleaning_box.ld.y()))
break;
x_to_wipe -= (xr - xl);
if (x_to_wipe < WT_EPSILON) {
// BBS: Delete some unnecessary travel
//writer.travel(m_left_to_right ? xl + 1.5f*m_perimeter_width : xr - 1.5f*m_perimeter_width, writer.y(), 7200);
break;
}
// stepping to the next line:
if (is_from_up)
writer.extrude(writer.x(), writer.y() - dy);
else
writer.extrude(writer.x(), writer.y() + dy);
m_left_to_right = !m_left_to_right;
}
float end_y = writer.y();
// We may be going back to the model - wipe the nozzle. If this is followed
// by finish_layer, this wipe path will be overwritten.
//writer.add_wipe_point(writer.x(), writer.y())
// .add_wipe_point(writer.x(), writer.y() - dy)
// .add_wipe_point(! m_left_to_right ? m_wipe_tower_width : 0.f, writer.y() - dy);
// BBS: modify the wipe_path after toolchange
writer.add_wipe_point(writer.x(), writer.y())
.add_wipe_point(! m_left_to_right ? m_wipe_tower_width : 0.f, writer.y());
if (m_layer_info != m_plan.end() && m_current_tool != m_layer_info->tool_changes.back().new_tool)
m_left_to_right = !m_left_to_right;
writer.set_extrusion_flow(m_extrusion_flow); // Reset the extrusion flow.
// BBS: add the note for gcode-check when the flow changed
if (is_first_layer()) {
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Width) + std::to_string(m_perimeter_width) + "\n");
}
}
// BBS
WipeTower::box_coordinates WipeTower::align_perimeter(const WipeTower::box_coordinates& perimeter_box)
{
box_coordinates aligned_box = perimeter_box;
float spacing = m_extra_spacing * m_perimeter_width;
float up = perimeter_box.lu(1) - m_perimeter_width - EPSILON;
up = align_ceil(up, spacing);
up += m_perimeter_width;
up = std::min(up, m_wipe_tower_depth);
float down = perimeter_box.ld(1) - m_perimeter_width + EPSILON;
down = align_floor(down, spacing);
down += m_perimeter_width;
down = std::max(down, -m_y_shift);
aligned_box.lu(1) = aligned_box.ru(1) = up;
aligned_box.ld(1) = aligned_box.rd(1) = down;
return aligned_box;
}
WipeTower::ToolChangeResult WipeTower::finish_layer(bool extrude_perimeter, bool extruder_fill)
{
assert(! this->layer_finished());
m_current_layer_finished = true;
size_t old_tool = m_current_tool;
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(m_current_tool)
.set_y_shift(m_y_shift - (m_current_shape == SHAPE_REVERSED ? m_layer_info->toolchanges_depth() : 0.f));
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_Start) + "\n");
// Slow down on the 1st layer.
bool first_layer = is_first_layer();
// BBS: speed up perimeter speed to 90mm/s for non-first layer
float feedrate = first_layer ? std::min(m_first_layer_speed * 60.f, 5400.f) : std::min(60.0f * m_filpar[m_current_tool].max_e_speed / m_extrusion_flow, 5400.f);
float fill_box_y = m_layer_info->toolchanges_depth() + m_perimeter_width;
box_coordinates fill_box(Vec2f(m_perimeter_width, fill_box_y),
m_wipe_tower_width - 2 * m_perimeter_width, m_layer_info->depth - fill_box_y);
writer.set_initial_position((m_left_to_right ? fill_box.ru : fill_box.lu), // so there is never a diagonal travel
m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
bool toolchanges_on_layer = m_layer_info->toolchanges_depth() > WT_EPSILON;
// inner perimeter of the sparse section, if there is space for it:
if (fill_box.ru.y() - fill_box.rd.y() > m_perimeter_width - WT_EPSILON)
writer.rectangle_fill_box(this, fill_box.ld, fill_box.rd.x() - fill_box.ld.x(), fill_box.ru.y() - fill_box.rd.y(), feedrate);
// we are in one of the corners, travel to ld along the perimeter:
// BBS: Delete some unnecessary travel
//if (writer.x() > fill_box.ld.x() + EPSILON) writer.travel(fill_box.ld.x(), writer.y());
//if (writer.y() > fill_box.ld.y() + EPSILON) writer.travel(writer.x(), fill_box.ld.y());
// Extrude infill to support the material to be printed above.
const float dy = (fill_box.lu.y() - fill_box.ld.y() - m_perimeter_width);
float left = fill_box.lu.x() + 2*m_perimeter_width;
float right = fill_box.ru.x() - 2 * m_perimeter_width;
std::vector<Vec2f> finish_rect_wipe_path;
if (extruder_fill && dy > m_perimeter_width)
{
writer.travel(fill_box.ld + Vec2f(m_perimeter_width * 2, 0.f))
.append(";--------------------\n"
"; CP EMPTY GRID START\n")
.comment_with_value(" layer #", m_num_layer_changes + 1);
// Is there a soluble filament wiped/rammed at the next layer?
// If so, the infill should not be sparse.
bool solid_infill = m_layer_info+1 == m_plan.end()
? false
: std::any_of((m_layer_info+1)->tool_changes.begin(),
(m_layer_info+1)->tool_changes.end(),
[this](const WipeTowerInfo::ToolChange& tch) {
return m_filpar[tch.new_tool].is_soluble
|| m_filpar[tch.old_tool].is_soluble;
});
solid_infill |= first_layer && m_adhesion;
if (solid_infill) {
float sparse_factor = 1.5f; // 1=solid, 2=every other line, etc.
if (first_layer) { // the infill should touch perimeters
left -= m_perimeter_width;
right += m_perimeter_width;
sparse_factor = 1.f;
}
float y = fill_box.ld.y() + m_perimeter_width;
int n = dy / (m_perimeter_width * sparse_factor);
float spacing = (dy-m_perimeter_width)/(n-1);
int i=0;
for (i=0; i<n; ++i) {
writer.extrude(writer.x(), y, feedrate)
.extrude(i%2 ? left : right, y);
y = y + spacing;
}
writer.extrude(writer.x(), fill_box.lu.y());
} else {
// Extrude an inverse U at the left of the region and the sparse infill.
writer.extrude(fill_box.lu + Vec2f(m_perimeter_width * 2, 0.f), feedrate);
const int n = 1+int((right-left)/m_bridging);
const float dx = (right-left)/n;
for (int i=1;i<=n;++i) {
float x=left+dx*i;
writer.travel(x,writer.y());
writer.extrude(x,i%2 ? fill_box.rd.y() : fill_box.ru.y());
}
// BBS: add wipe_path for this case: only with finish rectangle
finish_rect_wipe_path.emplace_back(writer.pos());
finish_rect_wipe_path.emplace_back(Vec2f(left + dx * n, n % 2 ? fill_box.ru.y() : fill_box.rd.y()));
}
writer.append("; CP EMPTY GRID END\n"
";------------------\n\n\n\n\n\n\n");
}
// outer perimeter (always):
// BBS
box_coordinates wt_box(Vec2f(0.f, (m_current_shape == SHAPE_REVERSED ? m_layer_info->toolchanges_depth() : 0.f)),
m_wipe_tower_width, m_layer_info->depth + m_perimeter_width);
wt_box = align_perimeter(wt_box);
if (extrude_perimeter) {
writer.rectangle(wt_box, feedrate);
}
// brim chamfer
float spacing = m_perimeter_width - m_layer_height * float(1. - M_PI_4);
// How many perimeters shall the brim have?
int loops_num = (m_wipe_tower_brim_width + spacing / 2.f) / spacing;
const float max_chamfer_width = 3.f;
if (!first_layer) {
// stop print chamfer if depth changes
if (m_layer_info->depth != m_plan.front().depth) {
loops_num = 0;
}
else {
// limit max chamfer width to 3 mm
int chamfer_loops_num = (int)(max_chamfer_width / spacing);
int dist_to_1st = m_layer_info - m_plan.begin() - m_first_layer_idx;
loops_num = std::min(loops_num, chamfer_loops_num) - dist_to_1st;
}
}
if (loops_num > 0) {
box_coordinates box = wt_box;
for (size_t i = 0; i < loops_num; ++i) {
box.expand(spacing);
writer.rectangle(box, feedrate);
}
if (first_layer) {
// Save actual brim width to be later passed to the Print object, which will use it
// for skirt calculation and pass it to GLCanvas for precise preview box
m_wipe_tower_brim_width_real = wt_box.ld.x() - box.ld.x() + spacing / 2.f;
}
wt_box = box;
}
// Now prepare future wipe. box contains rectangle that was extruded last (ccw).
Vec2f target = (writer.pos() == wt_box.ld ? wt_box.rd :
(writer.pos() == wt_box.rd ? wt_box.ru :
(writer.pos() == wt_box.ru ? wt_box.lu :
wt_box.ld)));
// BBS: add wipe_path for this case: only with finish rectangle
if (finish_rect_wipe_path.size() == 2 && finish_rect_wipe_path[0] == writer.pos())
target = finish_rect_wipe_path[1];
writer.add_wipe_point(writer.pos())
.add_wipe_point(target);
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_End) + "\n");
// Ask our writer about how much material was consumed.
// Skip this in case the layer is sparse and config option to not print sparse layers is enabled.
if (! m_no_sparse_layers || toolchanges_on_layer)
if (m_current_tool < m_used_filament_length.size())
m_used_filament_length[m_current_tool] += writer.get_and_reset_used_filament_length();
return construct_tcr(writer, false, old_tool, true, false, 0.f);
}
// Appends a toolchange into m_plan and calculates neccessary depth of the corresponding box
void WipeTower::plan_toolchange(float z_par, float layer_height_par, unsigned int old_tool,
unsigned int new_tool, float wipe_volume, float purge_volume)
{
assert(m_plan.empty() || m_plan.back().z <= z_par + WT_EPSILON); // refuses to add a layer below the last one
if (m_plan.empty() || m_plan.back().z + WT_EPSILON < z_par) // if we moved to a new layer, we'll add it to m_plan first
m_plan.push_back(WipeTowerInfo(z_par, layer_height_par));
if (m_first_layer_idx == size_t(-1) && (! m_no_sparse_layers || old_tool != new_tool))
m_first_layer_idx = m_plan.size() - 1;
if (old_tool == new_tool) // new layer without toolchanges - we are done
return;
// this is an actual toolchange - let's calculate depth to reserve on the wipe tower
float depth = 0.f;
float width = m_wipe_tower_width - 2 * m_perimeter_width;
// BBS: if the wipe tower width is too small, the depth will be infinity
if (width <= EPSILON)
return;
// BBS: remove old filament ramming and first line
#if 0
float length_to_extrude = volume_to_length(0.25f * std::accumulate(m_filpar[old_tool].ramming_speed.begin(), m_filpar[old_tool].ramming_speed.end(), 0.f),
m_perimeter_width * m_filpar[old_tool].ramming_line_width_multiplicator,
layer_height_par);
depth = (int(length_to_extrude / width) + 1) * (m_perimeter_width * m_filpar[old_tool].ramming_line_width_multiplicator * m_filpar[old_tool].ramming_step_multiplicator);
float ramming_depth = depth;
length_to_extrude = width*((length_to_extrude / width)-int(length_to_extrude / width)) - width;
float first_wipe_line = -length_to_extrude;
length_to_extrude += volume_to_length(wipe_volume, m_perimeter_width, layer_height_par);
length_to_extrude = std::max(length_to_extrude,0.f);
depth += (int(length_to_extrude / width) + 1) * m_perimeter_width;
depth *= m_extra_spacing;
m_plan.back().tool_changes.push_back(WipeTowerInfo::ToolChange(old_tool, new_tool, depth, ramming_depth, first_wipe_line, wipe_volume));
#else
float length_to_extrude = volume_to_length(wipe_volume, m_perimeter_width, layer_height_par);
depth += std::ceil(length_to_extrude / width) * m_perimeter_width;
//depth *= m_extra_spacing;
float nozzle_change_depth = 0;
if (!m_filament_map.empty() && m_filament_map[old_tool] != m_filament_map[new_tool]) {
double e_flow = extrusion_flow(0.2);
double length = (m_nozzle_change_length + m_filaments_change_length[old_tool]) / e_flow;
int nozzle_change_line_count = length / (m_wipe_tower_width - 2*m_perimeter_width) + 1;
if (has_tpu_filament())
nozzle_change_depth = m_tpu_fixed_spacing * nozzle_change_line_count * m_perimeter_width;
else
nozzle_change_depth = nozzle_change_line_count * m_perimeter_width;
depth += nozzle_change_depth;
}
WipeTowerInfo::ToolChange tool_change = WipeTowerInfo::ToolChange(old_tool, new_tool, depth, 0.f, 0.f, wipe_volume, length_to_extrude, purge_volume);
tool_change.nozzle_change_depth = nozzle_change_depth;
m_plan.back().tool_changes.push_back(tool_change);
#endif
}
void WipeTower::plan_tower()
{
// BBS
// calculate extra spacing
float max_depth = 0.f;
for (auto& info : m_plan)
max_depth = std::max(max_depth, info.toolchanges_depth());
float min_wipe_tower_depth = WipeTower::get_limit_depth_by_height(m_wipe_tower_height);
{
if (m_enable_timelapse_print && max_depth < EPSILON)
max_depth = min_wipe_tower_depth;
if (max_depth + EPSILON < min_wipe_tower_depth && !has_tpu_filament())
m_extra_spacing = min_wipe_tower_depth / max_depth;
else
m_extra_spacing = 1.f;
for (int idx = 0; idx < m_plan.size(); idx++) {
auto& info = m_plan[idx];
if (idx == 0 && m_extra_spacing > 1.f + EPSILON) {
// apply solid fill for the first layer
info.extra_spacing = 1.f;
for (auto& toolchange : info.tool_changes) {
float x_to_wipe = volume_to_length(toolchange.wipe_volume, m_perimeter_width, info.height);
float line_len = m_wipe_tower_width - 2 * m_perimeter_width;
float x_to_wipe_new = x_to_wipe * m_extra_spacing;
x_to_wipe_new = std::floor(x_to_wipe_new / line_len) * line_len;
x_to_wipe_new = std::max(x_to_wipe_new, x_to_wipe);
int line_count = std::ceil((x_to_wipe_new - WT_EPSILON) / line_len);
{ // nozzle change length
int nozzle_change_line_count = (toolchange.nozzle_change_depth + WT_EPSILON) / m_perimeter_width;
line_count += nozzle_change_line_count;
}
toolchange.required_depth = line_count * m_perimeter_width;
toolchange.wipe_volume = x_to_wipe_new / x_to_wipe * toolchange.wipe_volume;
toolchange.wipe_length = x_to_wipe_new;
}
}
else {
info.extra_spacing = m_extra_spacing;
for (auto& toolchange : info.tool_changes) {
toolchange.required_depth *= m_extra_spacing;
toolchange.wipe_length = volume_to_length(toolchange.wipe_volume, m_perimeter_width, info.height);
}
}
}
}
// Calculate m_wipe_tower_depth (maximum depth for all the layers) and propagate depths downwards
m_wipe_tower_depth = 0.f;
for (auto& layer : m_plan)
layer.depth = 0.f;
float max_depth_for_all = 0;
for (int layer_index = int(m_plan.size()) - 1; layer_index >= 0; --layer_index)
{
float this_layer_depth = std::max(m_plan[layer_index].depth, m_plan[layer_index].toolchanges_depth());
if (m_enable_timelapse_print && this_layer_depth < EPSILON)
this_layer_depth = min_wipe_tower_depth;
m_plan[layer_index].depth = this_layer_depth;
if (this_layer_depth > m_wipe_tower_depth - m_perimeter_width)
m_wipe_tower_depth = this_layer_depth + m_perimeter_width;
for (int i = layer_index - 1; i >= 0 ; i--)
{
if (m_plan[i].depth - this_layer_depth < 2*m_perimeter_width )
m_plan[i].depth = this_layer_depth;
}
if (m_enable_timelapse_print && layer_index == 0)
max_depth_for_all = m_plan[0].depth;
}
if (m_enable_timelapse_print) {
for (int i = int(m_plan.size()) - 1; i >= 0; i--) {
m_plan[i].depth = max_depth_for_all;
}
}
}
void WipeTower::save_on_last_wipe()
{
for (m_layer_info=m_plan.begin();m_layer_info<m_plan.end();++m_layer_info) {
set_layer(m_layer_info->z, m_layer_info->height, 0, m_layer_info->z == m_plan.front().z, m_layer_info->z == m_plan.back().z);
if (m_layer_info->tool_changes.size()==0) // we have no way to save anything on an empty layer
continue;
// Which toolchange will finish_layer extrusions be subtracted from?
// BBS: consider both soluable and support properties
int idx = first_toolchange_to_nonsoluble_nonsupport(m_layer_info->tool_changes);
for (int i=0; i<int(m_layer_info->tool_changes.size()); ++i) {
auto& toolchange = m_layer_info->tool_changes[i];
tool_change(toolchange.new_tool);
if (i == idx) {
float width = m_wipe_tower_width - 3*m_perimeter_width; // width we draw into
float length_to_save = finish_layer().total_extrusion_length_in_plane();
float length_to_wipe = volume_to_length(toolchange.wipe_volume,
m_perimeter_width, m_layer_info->height) - toolchange.first_wipe_line - length_to_save;
length_to_wipe = std::max(length_to_wipe,0.f);
float depth_to_wipe = m_perimeter_width * (std::floor(length_to_wipe/width) + ( length_to_wipe > 0.f ? 1.f : 0.f ) ) * m_extra_spacing;
toolchange.required_depth = toolchange.ramming_depth + depth_to_wipe;
}
}
}
}
bool WipeTower::is_tpu_filament(int filament_id) const
{
return m_filpar[filament_id].material == "TPU";
}
// BBS: consider both soluable and support properties
// Return index of first toolchange that switches to non-soluble and non-support extruder
// ot -1 if there is no such toolchange.
int WipeTower::first_toolchange_to_nonsoluble_nonsupport(
const std::vector<WipeTowerInfo::ToolChange>& tool_changes) const
{
for (size_t idx=0; idx<tool_changes.size(); ++idx)
if (! m_filpar[tool_changes[idx].new_tool].is_soluble && ! m_filpar[tool_changes[idx].new_tool].is_support)
return idx;
return -1;
}
static WipeTower::ToolChangeResult merge_tcr(WipeTower::ToolChangeResult& first,
WipeTower::ToolChangeResult& second)
{
assert(first.new_tool == second.initial_tool);
WipeTower::ToolChangeResult out = first;
if ((first.end_pos - second.start_pos).norm() > (float)EPSILON) {
std::string travel_gcode = "G1 X" + Slic3r::float_to_string_decimal_point(second.start_pos.x(), 3)
+ " Y" + Slic3r::float_to_string_decimal_point(second.start_pos.y(), 3) + "\n";
bool need_insert_travel = true;
if (second.is_tool_change
&& is_approx(second.start_pos.x(), second.tool_change_start_pos.x())
&& is_approx(second.start_pos.y(), second.tool_change_start_pos.y())) {
// will insert travel in gcode.cpp
need_insert_travel = false;
}
if (need_insert_travel)
out.gcode += travel_gcode;
}
out.gcode += second.gcode;
out.extrusions.insert(out.extrusions.end(), second.extrusions.begin(), second.extrusions.end());
out.end_pos = second.end_pos;
out.wipe_path = second.wipe_path;
out.initial_tool = first.initial_tool;
out.new_tool = second.new_tool;
if (!first.nozzle_change_result.gcode.empty())
out.nozzle_change_result = first.nozzle_change_result;
else if (!second.nozzle_change_result.gcode.empty())
out.nozzle_change_result = second.nozzle_change_result;
if (first.is_tool_change) {
out.is_tool_change = true;
out.tool_change_start_pos = first.tool_change_start_pos;
}
else if (second.is_tool_change) {
out.is_tool_change = true;
out.tool_change_start_pos = second.tool_change_start_pos;
}
else {
out.is_tool_change = false;
}
// BBS
out.purge_volume += second.purge_volume;
return out;
}
void WipeTower::get_wall_skip_points(const WipeTowerInfo &layer)
{
m_wall_skip_points.clear();
std::unordered_map<int, float> cur_block_depth;
for (int i = 0; i < int(layer.tool_changes.size()); ++i) {
const WipeTowerInfo::ToolChange &tool_change = layer.tool_changes[i];
size_t old_filament = tool_change.old_tool;
size_t new_filament = tool_change.new_tool;
float spacing = m_layer_info->extra_spacing;
if (has_tpu_filament() && m_layer_info->extra_spacing < m_tpu_fixed_spacing) spacing = 1;
float nozzle_change_depth = tool_change.nozzle_change_depth * spacing;
//float nozzle_change_depth = tool_change.nozzle_change_depth * (has_tpu_filament() ? m_tpu_fixed_spacing : layer.extra_spacing);
auto &block = get_block_by_category(m_filpar[new_filament].category);
//float wipe_depth = tool_change.required_depth - nozzle_change_depth;
float wipe_depth = ceil(tool_change.wipe_length / (m_wipe_tower_width - 2 * m_perimeter_width)) * m_perimeter_width*layer.extra_spacing;
float process_depth = 0.f;
if (!cur_block_depth.count(m_filpar[new_filament].category))
cur_block_depth[m_filpar[new_filament].category] = block.start_depth;
process_depth = cur_block_depth[m_filpar[new_filament].category];
if (!m_filament_map.empty() && new_filament < m_filament_map.size() && m_filament_map[old_filament] != m_filament_map[new_filament]) {
if (m_filament_categories[new_filament] == m_filament_categories[old_filament])
process_depth += nozzle_change_depth;
else {
if (!cur_block_depth.count(m_filpar[old_filament].category))
cur_block_depth[m_filpar[old_filament].category] = get_block_by_category(m_filpar[old_filament].category).start_depth;
cur_block_depth[m_filpar[old_filament].category] += nozzle_change_depth;
}
}
{
Vec2f res;
int index = m_cur_layer_id % 4;
switch (index % 4) {
case 0: res = Vec2f(0, process_depth); break;
case 1: res = Vec2f(m_wipe_tower_width, process_depth + wipe_depth - layer.extra_spacing*m_perimeter_width); break;
case 2: res = Vec2f(m_wipe_tower_width, process_depth); break;
case 3: res = Vec2f(0, process_depth + wipe_depth - layer.extra_spacing * m_perimeter_width); break;
default: break;
}
m_wall_skip_points.emplace_back(res);
}
cur_block_depth[m_filpar[new_filament].category] = process_depth + tool_change.required_depth - tool_change.nozzle_change_depth * layer.extra_spacing;
}
}
WipeTower::ToolChangeResult WipeTower::tool_change_new(size_t new_tool)
{
m_nozzle_change_result.gcode.clear();
if (!m_filament_map.empty() && new_tool < m_filament_map.size() && m_filament_map[m_current_tool] != m_filament_map[new_tool]) {
m_nozzle_change_result = nozzle_change_new(m_current_tool, new_tool);
}
size_t old_tool = m_current_tool;
float wipe_depth = 0.f;
float wipe_length = 0.f;
float purge_volume = 0.f;
float nozzle_change_depth = 0.f;
if (new_tool != (unsigned int) (-1)) {
for (const auto &b : m_layer_info->tool_changes)
if (b.new_tool == new_tool) {
wipe_length = b.wipe_length;
wipe_depth = b.required_depth;
purge_volume = b.purge_volume;
nozzle_change_depth = b.nozzle_change_depth;
break;
}
}
WipeTowerBlock &block = get_block_by_category(m_filpar[new_tool].category);
box_coordinates cleaning_box(Vec2f(m_perimeter_width, block.cur_depth), m_wipe_tower_width - 2 * m_perimeter_width, block.depth);
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(m_current_tool)
.set_y_shift(m_y_shift + (new_tool != (unsigned int) (-1) && (m_current_shape == SHAPE_REVERSED) ? m_layer_info->depth - m_layer_info->toolchanges_depth() : 0.f))
.append(";--------------------\n"
"; CP TOOLCHANGE START\n")
.comment_with_value(" toolchange #", m_num_tool_changes + 1); // the number is zero-based
if (new_tool != (unsigned) (-1))
writer.append( std::string("; material : " + (m_current_tool < m_filpar.size() ? m_filpar[m_current_tool].material : "(NONE)") + " -> " + m_filpar[new_tool].material + "\n").c_str())
.append(";--------------------\n");
writer.speed_override_backup();
writer.speed_override(100);
// Ram the hot material out of the melt zone, retract the filament into the cooling tubes and let it cool.
if (new_tool != (unsigned int) -1) { // This is not the last change.
Vec2f initial_position = get_next_pos(cleaning_box, wipe_length);
writer.set_initial_position(initial_position, m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_Start) + "\n");
toolchange_Unload(writer, cleaning_box, m_filpar[m_current_tool].material,
is_first_layer() ? m_filpar[new_tool].nozzle_temperature_initial_layer : m_filpar[new_tool].nozzle_temperature);
toolchange_Change(writer, new_tool, m_filpar[new_tool].material); // Change the tool, set a speed override for soluble and flex materials.
toolchange_Load(writer, cleaning_box);
if (m_is_multi_extruder && is_tpu_filament(new_tool)) {
float dy = m_layer_info->extra_spacing * m_perimeter_width;
if (m_layer_info->extra_spacing < m_tpu_fixed_spacing) {
dy = m_tpu_fixed_spacing * m_perimeter_width;
}
float nozzle_change_speed = 60.0f * m_filpar[new_tool].max_e_speed / m_extrusion_flow;
nozzle_change_speed *= 0.25;
const float &xl = cleaning_box.ld.x();
const float &xr = cleaning_box.rd.x();
Vec2f start_pos = m_nozzle_change_result.origin_start_pos + Vec2f(0, m_perimeter_width);
bool left_to_right = true;
double tpu_travel_length = 5;
double e_flow = extrusion_flow(0.2);
double length = tpu_travel_length / e_flow;
int tpu_line_count = length / (m_wipe_tower_width - 2 * m_perimeter_width) + 1;
writer.travel(start_pos);
for (int i = 0; true; ++i) {
if (left_to_right)
writer.travel(xr - m_perimeter_width, writer.y(), nozzle_change_speed);
else
writer.travel(xl + m_perimeter_width, writer.y(), nozzle_change_speed);
if (i == tpu_line_count - 1) break;
writer.travel(writer.x(), writer.y() + dy);
left_to_right = !left_to_right;
}
writer.travel(initial_position);
}
toolchange_wipe_new(writer, cleaning_box, wipe_length);
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_End) + "\n");
++m_num_tool_changes;
} else
toolchange_Unload(writer, cleaning_box, m_filpar[m_current_tool].material, m_filpar[m_current_tool].nozzle_temperature);
block.cur_depth += (wipe_depth - nozzle_change_depth * m_layer_info->extra_spacing);
block.last_filament_change_id = new_tool;
// BBS
writer.speed_override_restore();
writer.feedrate(m_travel_speed * 60.f)
.flush_planner_queue()
.reset_extruder()
.append("; CP TOOLCHANGE END\n"
";------------------\n"
"\n\n");
// Ask our writer about how much material was consumed:
if (m_current_tool < m_used_filament_length.size())
m_used_filament_length[m_current_tool] += writer.get_and_reset_used_filament_length();
return construct_tcr(writer, false, old_tool, false, true, purge_volume);
}
WipeTower::NozzleChangeResult WipeTower::nozzle_change_new(int old_filament_id, int new_filament_id)
{
int nozzle_change_line_count = 0;
if (new_filament_id != (unsigned int) (-1)) {
for (const auto &b : m_layer_info->tool_changes)
if (b.new_tool == new_filament_id) {
if (has_tpu_filament())
nozzle_change_line_count = ((b.nozzle_change_depth + WT_EPSILON) / m_perimeter_width) / 2;
else
nozzle_change_line_count = (b.nozzle_change_depth + WT_EPSILON) / m_perimeter_width;
break;
}
}
float nozzle_change_speed = 60.0f * m_filpar[m_current_tool].max_e_speed / m_extrusion_flow;
if (is_tpu_filament(m_current_tool)) {
nozzle_change_speed *= 0.25;
}
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(m_current_tool)
.set_extrusion_flow(m_extrusion_flow)
.set_y_shift(m_y_shift + (new_filament_id != (unsigned int) (-1) && (m_current_shape == SHAPE_REVERSED) ? m_layer_info->depth - m_layer_info->toolchanges_depth() : 0.f))
.append("; Nozzle change start\n");
WipeTowerBlock & block = get_block_by_category(m_filpar[old_filament_id].category);
box_coordinates cleaning_box(Vec2f(m_perimeter_width, block.cur_depth), m_wipe_tower_width - 2 * m_perimeter_width, std::min(block.depth, m_wipe_tower_depth - block.cur_depth) - m_perimeter_width);
Vec2f initial_position = cleaning_box.ld;
writer.set_initial_position(initial_position, m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
const float &xl = cleaning_box.ld.x();
const float &xr = cleaning_box.rd.x();
float dy = m_layer_info->extra_spacing * m_perimeter_width;
if (has_tpu_filament() && m_extra_spacing < m_tpu_fixed_spacing)
dy = m_tpu_fixed_spacing * m_perimeter_width;
m_left_to_right = true;
for (int i = 0; true; ++i) {
if (m_left_to_right)
writer.extrude(xr + wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), nozzle_change_speed);
else
writer.extrude(xl - wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), nozzle_change_speed);
if (i == nozzle_change_line_count - 1)
break;
writer.extrude(writer.x(), writer.y() + dy);
m_left_to_right = !m_left_to_right;
}
writer.set_extrusion_flow(m_extrusion_flow); // Reset the extrusion flow.
block.cur_depth += nozzle_change_line_count * dy;
block.last_nozzle_change_id = old_filament_id;
NozzleChangeResult result;
if (is_tpu_filament(m_current_tool)) {
bool left_to_right = !m_left_to_right;
double tpu_travel_length = 5;
double e_flow = extrusion_flow(0.2);
double length = tpu_travel_length / e_flow;
int tpu_line_count = length / (m_wipe_tower_width - 2 * m_perimeter_width) + 1;
writer.travel(writer.x(), writer.y() - m_perimeter_width);
for (int i = 0; true; ++i) {
if (left_to_right)
writer.travel(xr - m_perimeter_width, writer.y(), nozzle_change_speed);
else
writer.travel(xl + m_perimeter_width, writer.y(), nozzle_change_speed);
if (i == tpu_line_count - 1)
break;
writer.travel(writer.x(), writer.y() - dy);
left_to_right = !left_to_right;
}
} else {
result.wipe_path.push_back(writer.pos());
if (m_left_to_right) {
result.wipe_path.push_back(Vec2f(0, writer.y()));
} else {
result.wipe_path.push_back(Vec2f(m_wipe_tower_width, writer.y()));
}
}
writer.append("; Nozzle change end\n");
result.start_pos = writer.start_pos_rotated();
result.origin_start_pos = initial_position;
result.end_pos = writer.pos();
result.gcode = writer.gcode();
return result;
}
WipeTower::ToolChangeResult WipeTower::finish_layer_new(bool extrude_perimeter, bool extrude_fill, bool extrude_fill_wall)
{
assert(!this->layer_finished());
m_current_layer_finished = true;
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(m_current_tool)
.set_y_shift(m_y_shift - (m_current_shape == SHAPE_REVERSED ? m_layer_info->toolchanges_depth() : 0.f));
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_Start) + "\n");
// Slow down on the 1st layer.
bool first_layer = is_first_layer();
// BBS: speed up perimeter speed to 90mm/s for non-first layer
float feedrate = first_layer ? std::min(m_first_layer_speed * 60.f, 5400.f) : std::min(60.0f * m_filpar[m_current_tool].max_e_speed / m_extrusion_flow, 5400.f);
float fill_box_depth = m_wipe_tower_depth - 2 * m_perimeter_width;
if (m_wipe_tower_blocks.size() == 1) {
fill_box_depth = m_layer_info->depth - 2 * m_perimeter_width;
}
box_coordinates fill_box(Vec2f(m_perimeter_width, m_perimeter_width), m_wipe_tower_width - 2 * m_perimeter_width, fill_box_depth);
writer.set_initial_position((m_left_to_right ? fill_box.ru : fill_box.lu), m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
bool toolchanges_on_layer = m_layer_info->toolchanges_depth() > WT_EPSILON;
std::vector<Vec2f> finish_rect_wipe_path;
if (extrude_fill_wall) {
// inner perimeter of the sparse section, if there is space for it:
if (fill_box.ru.y() - fill_box.rd.y() > m_perimeter_width - WT_EPSILON) {
writer.rectangle_fill_box(this, fill_box.ld, fill_box.rd.x() - fill_box.ld.x(), fill_box.ru.y() - fill_box.rd.y(), feedrate);
Vec2f target = (writer.pos() == fill_box.ld ? fill_box.rd :
(writer.pos() == fill_box.rd ? fill_box.ru :
(writer.pos() == fill_box.ru ? fill_box.lu :
fill_box.ld)));
finish_rect_wipe_path.emplace_back(writer.pos());
finish_rect_wipe_path.emplace_back(target);
}
}
// Extrude infill to support the material to be printed above.
const float dy = (fill_box.lu.y() - fill_box.ld.y() - m_perimeter_width);
float left = fill_box.lu.x() + 2 * m_perimeter_width;
float right = fill_box.ru.x() - 2 * m_perimeter_width;
if (extrude_fill && dy > m_perimeter_width) {
writer.travel(fill_box.ld + Vec2f(m_perimeter_width * 2, 0.f))
.append(";--------------------\n"
"; CP EMPTY GRID START\n")
.comment_with_value(" layer #", m_num_layer_changes + 1);
// Is there a soluble filament wiped/rammed at the next layer?
// If so, the infill should not be sparse.
bool solid_infill = m_layer_info + 1 == m_plan.end() ?
false :
std::any_of((m_layer_info + 1)->tool_changes.begin(), (m_layer_info + 1)->tool_changes.end(),
[this](const WipeTowerInfo::ToolChange &tch) { return m_filpar[tch.new_tool].is_soluble || m_filpar[tch.old_tool].is_soluble; });
solid_infill |= first_layer && m_adhesion;
if (solid_infill) {
float sparse_factor = 1.5f; // 1=solid, 2=every other line, etc.
if (first_layer) { // the infill should touch perimeters
left -= m_perimeter_width;
right += m_perimeter_width;
sparse_factor = 1.f;
}
float y = fill_box.ld.y() + m_perimeter_width;
int n = dy / (m_perimeter_width * sparse_factor);
float spacing = (dy - m_perimeter_width) / (n - 1);
int i = 0;
for (i = 0; i < n; ++i) {
writer.extrude(writer.x(), y, feedrate).extrude(i % 2 ? left : right, y);
y = y + spacing;
}
writer.extrude(writer.x(), fill_box.lu.y());
} else {
// Extrude an inverse U at the left of the region and the sparse infill.
writer.extrude(fill_box.lu + Vec2f(m_perimeter_width * 2, 0.f), feedrate);
const int n = 1 + int((right - left) / m_bridging);
const float dx = (right - left) / n;
for (int i = 1; i <= n; ++i) {
float x = left + dx * i;
writer.travel(x, writer.y());
writer.extrude(x, i % 2 ? fill_box.rd.y() : fill_box.ru.y());
}
finish_rect_wipe_path.clear();
// BBS: add wipe_path for this case: only with finish rectangle
finish_rect_wipe_path.emplace_back(writer.pos());
finish_rect_wipe_path.emplace_back(Vec2f(left + dx * n, n % 2 ? fill_box.ru.y() : fill_box.rd.y()));
}
writer.append("; CP EMPTY GRID END\n"
";------------------\n\n\n\n\n\n\n");
}
// outer perimeter (always):
// BBS
float wipe_tower_depth = m_wipe_tower_depth;
if (m_wipe_tower_blocks.size() == 1) {
wipe_tower_depth = m_layer_info->depth + m_perimeter_width;
}
box_coordinates wt_box(Vec2f(0.f, 0.f), m_wipe_tower_width, wipe_tower_depth);
wt_box = align_perimeter(wt_box);
//if (extrude_perimeter && !m_use_rib_wall) {
// if (!m_use_gap_wall)
// writer.rectangle(wt_box, feedrate);
// else
// generate_support_wall(writer, wt_box, feedrate, first_layer);
//}
Polygon outer_wall;
outer_wall = generate_support_wall_new(writer, wt_box, feedrate, first_layer, m_use_rib_wall, extrude_perimeter, m_use_gap_wall);
// brim chamfer
float spacing = m_perimeter_width - m_layer_height * float(1. - M_PI_4);
// How many perimeters shall the brim have?
int loops_num = (m_wipe_tower_brim_width + spacing / 2.f) / spacing;
const float max_chamfer_width = 3.f;
if (!first_layer) {
// stop print chamfer if depth changes
if (m_layer_info->depth != m_plan.front().depth) {
loops_num = 0;
} else {
// limit max chamfer width to 3 mm
int chamfer_loops_num = (int) (max_chamfer_width / spacing);
int dist_to_1st = m_layer_info - m_plan.begin() - m_first_layer_idx;
loops_num = std::min(loops_num, chamfer_loops_num) - dist_to_1st;
}
}
if (loops_num > 0) {
//box_coordinates box = wt_box;
for (size_t i = 0; i < loops_num; ++i) {
outer_wall = offset(outer_wall, scaled(spacing)).front();
writer.polygon(outer_wall, feedrate);
}
/*for (size_t i = 0; i < loops_num; ++i) {
box.expand(spacing);
writer.rectangle(box, feedrate);
}*/
if (first_layer) {
// Save actual brim width to be later passed to the Print object, which will use it
// for skirt calculation and pass it to GLCanvas for precise preview box
m_wipe_tower_brim_width_real = loops_num * spacing + spacing / 2.f;
//m_wipe_tower_brim_width_real = wt_box.ld.x() - box.ld.x() + spacing / 2.f;
// set wipe_tower_bbx
auto real_polygon = outer_wall;
real_polygon = offset(real_polygon, scaled(spacing/2.f)).front();
auto real_box = get_extents(real_polygon);
m_wipe_tower_bbx = BoundingBoxf(unscale(real_box.min), unscale(real_box.max));
}
//wt_box = box;
}
else {
if (first_layer) {
auto real_polygon = outer_wall;
real_polygon = offset(real_polygon, scaled(spacing / 2.f)).front();
auto real_box = get_extents(real_polygon);
m_wipe_tower_bbx = BoundingBoxf(unscale(real_box.min), unscale(real_box.max));
}
}
if (extrude_perimeter) writer.add_wipe_path(outer_wall, m_filpar[m_current_tool].wipe_dist);
else {
// Now prepare future wipe. box contains rectangle that was extruded last (ccw).
Vec2f target = (writer.pos() == wt_box.ld ? wt_box.rd : (writer.pos() == wt_box.rd ? wt_box.ru : (writer.pos() == wt_box.ru ? wt_box.lu : wt_box.ld)));
// BBS: add wipe_path for this case: only with finish rectangle
if (finish_rect_wipe_path.size() == 2 && finish_rect_wipe_path[0] == writer.pos()) target = finish_rect_wipe_path[1];
writer.add_wipe_point(writer.pos()).add_wipe_point(target);
}
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_End) + "\n");
// Ask our writer about how much material was consumed.
// Skip this in case the layer is sparse and config option to not print sparse layers is enabled.
if (!m_no_sparse_layers || toolchanges_on_layer)
if (m_current_tool < m_used_filament_length.size())
m_used_filament_length[m_current_tool] += writer.get_and_reset_used_filament_length();
m_nozzle_change_result.gcode.clear();
return construct_tcr(writer, false, m_current_tool, true, false, 0.f);
}
WipeTower::ToolChangeResult WipeTower::finish_block(const WipeTowerBlock &block, int filament_id, bool extrude_fill)
{
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(filament_id)
.set_y_shift(m_y_shift - (m_current_shape == SHAPE_REVERSED ? m_layer_info->toolchanges_depth() : 0.f));
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_Start) + "\n");
// Slow down on the 1st layer.
bool first_layer = is_first_layer();
// BBS: speed up perimeter speed to 90mm/s for non-first layer
float feedrate = first_layer ? std::min(m_first_layer_speed * 60.f, 5400.f) : std::min(60.0f * m_filpar[filament_id].max_e_speed / m_extrusion_flow, 5400.f);
box_coordinates fill_box(Vec2f(0, 0), 0, 0);
fill_box = box_coordinates(Vec2f(m_perimeter_width, block.cur_depth), m_wipe_tower_width - 2 * m_perimeter_width, block.start_depth + block.layer_depths[m_cur_layer_id] - block.cur_depth - m_perimeter_width);
writer.set_initial_position((m_left_to_right ? fill_box.ru : fill_box.lu), m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
bool toolchanges_on_layer = m_layer_info->toolchanges_depth() > WT_EPSILON;
std::vector<Vec2f> finish_rect_wipe_path;
// inner perimeter of the sparse section, if there is space for it:
if (fill_box.ru.y() - fill_box.rd.y() > m_perimeter_width - WT_EPSILON) {
writer.rectangle_fill_box(this, fill_box.ld, fill_box.rd.x() - fill_box.ld.x(), fill_box.ru.y() - fill_box.rd.y(), feedrate);
Vec2f target = (writer.pos() == fill_box.ld ? fill_box.rd :
(writer.pos() == fill_box.rd ? fill_box.ru :
(writer.pos() == fill_box.ru ? fill_box.lu : fill_box.ld)));
finish_rect_wipe_path.emplace_back(writer.pos());
finish_rect_wipe_path.emplace_back(target);
}
// Extrude infill to support the material to be printed above.
const float dy = (fill_box.lu.y() - fill_box.ld.y() - m_perimeter_width);
float left = fill_box.lu.x() + 2 * m_perimeter_width;
float right = fill_box.ru.x() - 2 * m_perimeter_width;
if (extrude_fill && dy > m_perimeter_width) {
writer.travel(fill_box.ld + Vec2f(m_perimeter_width * 2, 0.f))
.append(";--------------------\n"
"; CP EMPTY GRID START\n")
.comment_with_value(" layer #", m_num_layer_changes + 1);
// Is there a soluble filament wiped/rammed at the next layer?
// If so, the infill should not be sparse.
bool solid_infill = m_layer_info + 1 == m_plan.end() ?
false :
std::any_of((m_layer_info + 1)->tool_changes.begin(), (m_layer_info + 1)->tool_changes.end(),
[this](const WipeTowerInfo::ToolChange &tch) { return m_filpar[tch.new_tool].is_soluble || m_filpar[tch.old_tool].is_soluble; });
solid_infill |= first_layer && m_adhesion;
if (solid_infill) {
float sparse_factor = 1.5f; // 1=solid, 2=every other line, etc.
if (first_layer) { // the infill should touch perimeters
left -= m_perimeter_width;
right += m_perimeter_width;
sparse_factor = 1.f;
}
float y = fill_box.ld.y() + m_perimeter_width;
int n = dy / (m_perimeter_width * sparse_factor);
float spacing = (dy - m_perimeter_width) / (n - 1);
int i = 0;
for (i = 0; i < n; ++i) {
writer.extrude(writer.x(), y, feedrate).extrude(i % 2 ? left : right, y);
y = y + spacing;
}
writer.extrude(writer.x(), fill_box.lu.y());
} else {
// Extrude an inverse U at the left of the region and the sparse infill.
writer.extrude(fill_box.lu + Vec2f(m_perimeter_width * 2, 0.f), feedrate);
const int n = 1 + int((right - left) / m_bridging);
const float dx = (right - left) / n;
for (int i = 1; i <= n; ++i) {
float x = left + dx * i;
writer.travel(x, writer.y());
writer.extrude(x, i % 2 ? fill_box.rd.y() : fill_box.ru.y());
}
finish_rect_wipe_path.clear();
// BBS: add wipe_path for this case: only with finish rectangle
finish_rect_wipe_path.emplace_back(writer.pos());
finish_rect_wipe_path.emplace_back(Vec2f(left + dx * n, n % 2 ? fill_box.ru.y() : fill_box.rd.y()));
}
writer.append("; CP EMPTY GRID END\n"
";------------------\n\n\n\n\n\n\n");
}
// outer perimeter (always):
// BBS
box_coordinates wt_box(Vec2f(0.f, 0.f), m_wipe_tower_width, m_layer_info->depth + m_perimeter_width);
wt_box = align_perimeter(wt_box);
// Now prepare future wipe. box contains rectangle that was extruded last (ccw).
Vec2f target = (writer.pos() == wt_box.ld ? wt_box.rd : (writer.pos() == wt_box.rd ? wt_box.ru : (writer.pos() == wt_box.ru ? wt_box.lu : wt_box.ld)));
// BBS: add wipe_path for this case: only with finish rectangle
if (finish_rect_wipe_path.size() == 2 && finish_rect_wipe_path[0] == writer.pos()) target = finish_rect_wipe_path[1];
writer.add_wipe_point(writer.pos()).add_wipe_point(target);
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_End) + "\n");
// Ask our writer about how much material was consumed.
// Skip this in case the layer is sparse and config option to not print sparse layers is enabled.
if (!m_no_sparse_layers || toolchanges_on_layer)
if (filament_id < m_used_filament_length.size())
m_used_filament_length[filament_id] += writer.get_and_reset_used_filament_length();
return construct_block_tcr(writer, false, filament_id, true, 0.f);
}
WipeTower::ToolChangeResult WipeTower::finish_block_solid(const WipeTowerBlock &block, int filament_id, bool extrude_fill)
{
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(filament_id)
.set_y_shift(m_y_shift - (m_current_shape == SHAPE_REVERSED ? m_layer_info->toolchanges_depth() : 0.f));
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_Start) + "\n");
// Slow down on the 1st layer.
bool first_layer = is_first_layer();
// BBS: speed up perimeter speed to 90mm/s for non-first layer
float feedrate = first_layer ? std::min(m_first_layer_speed * 60.f, 5400.f) : std::min(60.0f * m_filpar[filament_id].max_e_speed / m_extrusion_flow, 5400.f);
box_coordinates fill_box(Vec2f(0, 0), 0, 0);
fill_box = box_coordinates(Vec2f(m_perimeter_width, block.cur_depth), m_wipe_tower_width - 2 * m_perimeter_width,
block.start_depth + block.layer_depths[m_cur_layer_id] - block.cur_depth - m_perimeter_width);
writer.set_initial_position((m_left_to_right ? fill_box.rd : fill_box.ld), m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
m_left_to_right = !m_left_to_right;
bool toolchanges_on_layer = m_layer_info->toolchanges_depth() > WT_EPSILON;
// Extrude infill to support the material to be printed above.
const float dy = (fill_box.lu.y() - fill_box.ld.y());
float left = fill_box.lu.x();
float right = fill_box.ru.x();
std::vector<Vec2f> finish_rect_wipe_path;
{
writer.append(";--------------------\n"
"; CP EMPTY GRID START\n")
.comment_with_value(" layer #", m_num_layer_changes + 1);
float y = fill_box.ld.y();
int n = (dy + 0.25 * m_perimeter_width) / m_perimeter_width + 1;
float spacing = m_perimeter_width;
int i = 0;
for (i = 0; i < n; ++i) {
writer.extrude(m_left_to_right ? right : left, writer.y(), feedrate);
if (i == n - 1) {
writer.add_wipe_point(writer.pos()).add_wipe_point(Vec2f(m_left_to_right ? left : right, writer.y()));
break;
}
m_left_to_right = !m_left_to_right;
y = y + spacing;
writer.extrude(writer.x(), y, feedrate);
}
writer.append("; CP EMPTY GRID END\n"
";------------------\n\n\n\n\n\n\n");
}
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_End) + "\n");
// Ask our writer about how much material was consumed.
// Skip this in case the layer is sparse and config option to not print sparse layers is enabled.
if (!m_no_sparse_layers || toolchanges_on_layer)
if (filament_id < m_used_filament_length.size())
m_used_filament_length[filament_id] += writer.get_and_reset_used_filament_length();
return construct_block_tcr(writer, false, filament_id, true, 0.f);
}
void WipeTower::toolchange_wipe_new(WipeTowerWriter &writer, const box_coordinates &cleaning_box, float wipe_length)
{
writer.set_extrusion_flow(m_extrusion_flow * (is_first_layer() ? 1.15f : 1.f)).append("; CP TOOLCHANGE WIPE\n");
// BBS: add the note for gcode-check, when the flow changed, the width should follow the change
if (is_first_layer()) {
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Width) + std::to_string(1.15 * m_perimeter_width) + "\n");
}
float retract_length = m_filpar[m_current_tool].retract_length;
float retract_speed = m_filpar[m_current_tool].retract_speed * 60;
const float &xl = cleaning_box.ld.x();
const float &xr = cleaning_box.rd.x();
float x_to_wipe = wipe_length;
float dy = m_layer_info->extra_spacing * m_perimeter_width;
const float target_speed = is_first_layer() ? std::min(m_first_layer_speed * 60.f, 4800.f) : 4800.f;
float wipe_speed = 0.33f * target_speed;
m_left_to_right = ((m_cur_layer_id + 3) % 4 >= 2);
bool is_from_up = (m_cur_layer_id % 2 == 1);
bool need_change_flow = false;
// now the wiping itself:
for (int i = 0; true; ++i) {
if (i != 0) {
if (wipe_speed < 0.34f * target_speed)
wipe_speed = 0.375f * target_speed;
else if (wipe_speed < 0.377 * target_speed)
wipe_speed = 0.458f * target_speed;
else if (wipe_speed < 0.46f * target_speed)
wipe_speed = 0.875f * target_speed;
else
wipe_speed = std::min(target_speed, wipe_speed + 50.f);
}
// BBS: check the bridging area and use the bridge flow
if (need_change_flow || need_thick_bridge_flow(writer.y())) {
writer.set_extrusion_flow(extrusion_flow(0.2));
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Height) + std::to_string(0.2) + "\n");
need_change_flow = true;
}
float ironing_length = 3.;
if (i == 0 && m_use_gap_wall) { // BBS: add ironing after extruding start
if (m_left_to_right) {
float dx = xr + wipe_tower_wall_infill_overlap_new * m_perimeter_width - writer.pos().x();
if (abs(dx) < ironing_length) ironing_length = abs(dx);
writer.extrude(writer.x() + ironing_length, writer.y(), wipe_speed);
writer.retract(retract_length, retract_speed);
writer.travel(writer.x() - 1.5 * ironing_length, writer.y(), 600.);
writer.travel(writer.x() + 1.5 * ironing_length, writer.y(), 240.);
writer.retract(-retract_length, retract_speed);
writer.extrude(xr + wipe_tower_wall_infill_overlap_new * m_perimeter_width, writer.y(), wipe_speed);
} else {
float dx = xl - wipe_tower_wall_infill_overlap_new * m_perimeter_width - writer.pos().x();
if (abs(dx) < ironing_length) ironing_length = abs(dx);
writer.extrude(writer.x() - ironing_length, writer.y(), wipe_speed);
writer.retract(retract_length, retract_speed);
writer.travel(writer.x() + 1.5 * ironing_length, writer.y(), 600.);
writer.travel(writer.x() - 1.5 * ironing_length, writer.y(), 240.);
writer.retract(-retract_length, retract_speed);
writer.extrude(xl - wipe_tower_wall_infill_overlap_new * m_perimeter_width, writer.y(), wipe_speed);
}
} else {
if (m_left_to_right)
writer.extrude(xr + wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), wipe_speed);
else
writer.extrude(xl - wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), wipe_speed);
}
// BBS: recover the flow in non-bridging area
if (need_change_flow) {
writer.set_extrusion_flow(m_extrusion_flow);
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Height) + std::to_string(m_layer_height) + "\n");
}
if (!is_from_up && (writer.y() - float(EPSILON) > cleaning_box.lu.y()))
break; // in case next line would not fit
if (is_from_up && (writer.y() + float(EPSILON) < cleaning_box.ld.y()))
break;
x_to_wipe -= (xr - xl);
if (x_to_wipe < WT_EPSILON) {
// BBS: Delete some unnecessary travel
// writer.travel(m_left_to_right ? xl + 1.5f*m_perimeter_width : xr - 1.5f*m_perimeter_width, writer.y(), 7200);
break;
}
// stepping to the next line:
if (is_from_up)
writer.extrude(writer.x(), writer.y() - dy);
else
writer.extrude(writer.x(), writer.y() + dy);
m_left_to_right = !m_left_to_right;
}
writer.add_wipe_point(writer.x(), writer.y()).add_wipe_point(!m_left_to_right ? m_wipe_tower_width : 0.f, writer.y());
if (m_layer_info != m_plan.end() && m_current_tool != m_layer_info->tool_changes.back().new_tool) m_left_to_right = !m_left_to_right;
writer.set_extrusion_flow(m_extrusion_flow); // Reset the extrusion flow.
// BBS: add the note for gcode-check when the flow changed
if (is_first_layer()) { writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Width) + std::to_string(m_perimeter_width) + "\n"); }
}
WipeTower::WipeTowerBlock &WipeTower::get_block_by_category(int filament_category)
{
auto iter = std::find_if(m_wipe_tower_blocks.begin(), m_wipe_tower_blocks.end(), [&filament_category](const WipeTower::WipeTowerBlock &item) {
return item.filament_category == filament_category;
});
if (iter != m_wipe_tower_blocks.end()) {
return *iter;
}
else {
WipeTower::WipeTowerBlock new_block;
new_block.block_id = m_wipe_tower_blocks.size();
new_block.filament_category = filament_category;
m_wipe_tower_blocks.emplace_back(new_block);
return m_wipe_tower_blocks.back();
}
}
void WipeTower::add_depth_to_block(int filament_id, int filament_category, float depth, bool is_nozzle_change)
{
std::vector<WipeTower::BlockDepthInfo> &layer_depth = m_all_layers_depth[m_cur_layer_id];
auto iter = std::find_if(layer_depth.begin(), layer_depth.end(), [&filament_category](const WipeTower::BlockDepthInfo &item) {
return item.category == filament_category;
});
if (iter != layer_depth.end()) {
iter->depth += depth;
if (is_nozzle_change)
iter->nozzle_change_depth += depth;
}
else {
WipeTower::BlockDepthInfo new_block;
new_block.category = filament_category;
new_block.depth = depth;
if (is_nozzle_change)
new_block.nozzle_change_depth += depth;
layer_depth.emplace_back(std::move(new_block));
}
}
int WipeTower::get_filament_category(int filament_id)
{
if (filament_id >= m_filament_categories.size())
return 0;
return m_filament_categories[filament_id];
}
bool WipeTower::is_in_same_extruder(int filament_id_1, int filament_id_2)
{
if (filament_id_1 >= m_filament_map.size() || filament_id_2 >= m_filament_map.size())
return true;
return m_filament_map[filament_id_1] == m_filament_map[filament_id_2];
}
void WipeTower::reset_block_status()
{
for (auto &block : m_wipe_tower_blocks) {
block.cur_depth = block.start_depth;
block.last_filament_change_id = -1;
block.last_nozzle_change_id = -1;
}
}
void WipeTower::update_all_layer_depth(float wipe_tower_depth)
{
m_wipe_tower_depth = 0.f;
float start_offset = m_perimeter_width;
float start_depth = start_offset;
for (auto& block : m_wipe_tower_blocks) {
block.depth *= m_extra_spacing;
block.start_depth = start_depth;
start_depth += block.depth;
m_wipe_tower_depth += block.depth;
for (auto& layer_depth : block.layer_depths) {
layer_depth *= m_extra_spacing;
}
for (WipeTowerInfo& plan_info : m_plan) {
plan_info.depth *= m_extra_spacing;
}
}
if (m_wipe_tower_depth > 0)
m_wipe_tower_depth += start_offset;
if (m_enable_timelapse_print) {
if (is_approx(m_wipe_tower_depth, 0.f))
m_wipe_tower_depth = wipe_tower_depth;
for (WipeTowerInfo &plan_info : m_plan) {
plan_info.depth = m_wipe_tower_depth;
}
}
}
void WipeTower::generate_wipe_tower_blocks()
{
// 1. generate all layer depth
m_all_layers_depth.clear();
m_all_layers_depth.resize(m_plan.size());
m_cur_layer_id = 0;
for (auto& info : m_plan) {
for (const WipeTowerInfo::ToolChange &tool_change : info.tool_changes) {
if (is_in_same_extruder(tool_change.old_tool, tool_change.new_tool)) {
int filament_category = get_filament_category(tool_change.new_tool);
add_depth_to_block(tool_change.new_tool, filament_category, tool_change.required_depth);
}
else {
int old_filament_category = get_filament_category(tool_change.old_tool);
add_depth_to_block(tool_change.old_tool, old_filament_category, tool_change.nozzle_change_depth, true);
int new_filament_category = get_filament_category(tool_change.new_tool);
add_depth_to_block(tool_change.new_tool, new_filament_category, tool_change.required_depth - tool_change.nozzle_change_depth);
}
}
++m_cur_layer_id;
}
// 2. generate all layer depth
std::vector<std::unordered_map<int, float>> all_layer_category_to_depth(m_plan.size());
for (size_t layer_id = 0; layer_id < m_all_layers_depth.size(); ++layer_id) {
const auto& layer_blocks = m_all_layers_depth[layer_id];
std::unordered_map<int, float> &category_to_depth = all_layer_category_to_depth[layer_id];
for (auto block : layer_blocks) {
category_to_depth[block.category] = block.depth;
}
}
// 3. generate wipe tower block
m_wipe_tower_blocks.clear();
for (int layer_id = 0; layer_id < all_layer_category_to_depth.size(); ++layer_id) {
const auto &layer_category_depths = all_layer_category_to_depth[layer_id];
for (auto iter = layer_category_depths.begin(); iter != layer_category_depths.end(); ++iter) {
auto& block = get_block_by_category(iter->first);
if (block.layer_depths.empty()) {
block.layer_depths.resize(all_layer_category_to_depth.size(), 0);
block.solid_infill.resize(all_layer_category_to_depth.size(), false);
}
block.depth = std::max(block.depth, iter->second);
block.layer_depths[layer_id] = iter->second;
}
}
// add solid infill flag
int solid_infill_layer = 2;
for (WipeTowerBlock& block : m_wipe_tower_blocks) {
for (int layer_id = 0; layer_id < all_layer_category_to_depth.size(); ++layer_id) {
std::unordered_map<int, float> &category_to_depth = all_layer_category_to_depth[layer_id];
if (is_approx(category_to_depth[block.filament_category], 0.f)) {
int layer_count = solid_infill_layer;
while (layer_count > 0) {
if (layer_id + layer_count < all_layer_category_to_depth.size()) {
std::unordered_map<int, float>& up_layer_depth = all_layer_category_to_depth[layer_id + layer_count];
if (!is_approx(up_layer_depth[block.filament_category], 0.f)) {
block.solid_infill[layer_id] = true;
break;
}
}
--layer_count;
}
}
}
}
// 4. get real depth for every layer
for (int layer_id = m_plan.size() - 1; layer_id >= 0; --layer_id) {
m_plan[layer_id].depth = 0;
for (auto& block : m_wipe_tower_blocks) {
if (layer_id < m_plan.size() - 1)
block.layer_depths[layer_id] = std::max(block.layer_depths[layer_id], block.layer_depths[layer_id + 1]);
m_plan[layer_id].depth += block.layer_depths[layer_id];
}
}
}
void WipeTower::plan_tower_new()
{
if (m_use_rib_wall) {
// recalculate wipe_tower_with and layer's depth
generate_wipe_tower_blocks();
float max_depth = std::accumulate(m_wipe_tower_blocks.begin(), m_wipe_tower_blocks.end(), 0.f, [](float a, const auto &t) { return a + t.depth; }) + m_perimeter_width;
float square_width = align_ceil(std::sqrt(max_depth * m_wipe_tower_width), m_perimeter_width);
//std::cout << " before m_wipe_tower_width = " << m_wipe_tower_width << " max_depth = " << max_depth << std::endl;
m_wipe_tower_width = square_width;
float width = m_wipe_tower_width - 2 * m_perimeter_width;
for (int idx = 0; idx < m_plan.size(); idx++) {
for (auto &toolchange : m_plan[idx].tool_changes) {
float length_to_extrude = toolchange.wipe_length;
float depth = std::ceil(length_to_extrude / width) * m_perimeter_width;
float nozzle_change_depth = 0;
if (!m_filament_map.empty() && m_filament_map[toolchange.old_tool] != m_filament_map[toolchange.new_tool]) {
double e_flow = extrusion_flow(m_plan[idx].height);
double length = m_filaments_change_length[toolchange.old_tool] / e_flow;
int nozzle_change_line_count = length / (m_wipe_tower_width - 2*m_perimeter_width) + 1;
if (has_tpu_filament())
nozzle_change_depth = m_tpu_fixed_spacing * nozzle_change_line_count * m_perimeter_width;
else
nozzle_change_depth = nozzle_change_line_count * m_perimeter_width;
depth += nozzle_change_depth;
}
toolchange.nozzle_change_depth = nozzle_change_depth;
toolchange.required_depth = depth;
}
}
}
generate_wipe_tower_blocks();
float max_depth = 0.f;
for (const auto &block : m_wipe_tower_blocks) {
max_depth += block.depth;
}
//std::cout << " after square " << m_wipe_tower_width << " depth " << max_depth << std::endl;
float min_wipe_tower_depth = 0.f;
auto iter = WipeTower::min_depth_per_height.begin();
while (iter != WipeTower::min_depth_per_height.end()) {
auto curr_height_to_depth = *iter;
// This is the case that wipe tower height is lower than the first min_depth_to_height member.
if (curr_height_to_depth.first >= m_wipe_tower_height) {
min_wipe_tower_depth = curr_height_to_depth.second;
break;
}
iter++;
// If curr_height_to_depth is the last member, use its min_depth.
if (iter == WipeTower::min_depth_per_height.end()) {
min_wipe_tower_depth = curr_height_to_depth.second;
break;
}
// If wipe tower height is between the current and next member, set the min_depth as linear interpolation between them
auto next_height_to_depth = *iter;
if (next_height_to_depth.first > m_wipe_tower_height) {
float height_base = curr_height_to_depth.first;
float height_diff = next_height_to_depth.first - curr_height_to_depth.first;
float min_depth_base = curr_height_to_depth.second;
float depth_diff = next_height_to_depth.second - curr_height_to_depth.second;
min_wipe_tower_depth = min_depth_base + (m_wipe_tower_height - curr_height_to_depth.first) / height_diff * depth_diff;
break;
}
}
// only for get m_extra_spacing
{
if (m_enable_timelapse_print && max_depth < EPSILON)
max_depth = min_wipe_tower_depth;
if (max_depth + EPSILON < min_wipe_tower_depth) {
m_extra_spacing = min_wipe_tower_depth / max_depth;
if (m_use_rib_wall) {
m_rib_length = std::max(m_rib_length, min_wipe_tower_depth * (float) std::sqrt(2));
m_extra_spacing = 1.f;
}
}
for (int idx = 0; idx < m_plan.size(); idx++) {
auto &info = m_plan[idx];
if (idx == 0 && m_extra_spacing > 1.f + EPSILON) {
// apply solid fill for the first layer
info.extra_spacing = 1.f;
for (auto &toolchange : info.tool_changes) {
float x_to_wipe = volume_to_length(toolchange.wipe_volume, m_perimeter_width, info.height);
float line_len = m_wipe_tower_width - 2 * m_perimeter_width;
float x_to_wipe_new = x_to_wipe * m_extra_spacing;
x_to_wipe_new = std::floor(x_to_wipe_new / line_len) * line_len;
x_to_wipe_new = std::max(x_to_wipe_new, x_to_wipe);
int line_count = std::ceil((x_to_wipe_new - WT_EPSILON) / line_len);
{ // nozzle change length
int nozzle_change_line_count = (toolchange.nozzle_change_depth + WT_EPSILON) / m_perimeter_width;
line_count += nozzle_change_line_count;
}
toolchange.required_depth = line_count * m_perimeter_width;
toolchange.wipe_volume = x_to_wipe_new / x_to_wipe * toolchange.wipe_volume;
toolchange.wipe_length = x_to_wipe_new;
}
} else {
info.extra_spacing = m_extra_spacing;
for (auto &toolchange : info.tool_changes) {
toolchange.required_depth *= m_extra_spacing;
toolchange.wipe_length = volume_to_length(toolchange.wipe_volume, m_perimeter_width, info.height);
}
}
}
}
update_all_layer_depth(max_depth);
m_rib_length = std::max({m_rib_length, sqrt(m_wipe_tower_depth * m_wipe_tower_depth + m_wipe_tower_width * m_wipe_tower_width)});
m_rib_length += m_extra_rib_length;
}
int WipeTower::get_wall_filament_for_all_layer()
{
std::unordered_map<int, int> category_counts;
std::unordered_map<int, int> filament_counts;
for (const auto &layer : m_plan) {
for (size_t i = 0; i < layer.tool_changes.size(); ++i) {
if (i == 0) {
filament_counts[layer.tool_changes[i].old_tool]++;
category_counts[get_filament_category(layer.tool_changes[i].old_tool)]++;
}
filament_counts[layer.tool_changes[i].new_tool]++;
category_counts[get_filament_category(layer.tool_changes[i].new_tool)]++;
}
}
//std::vector<std::pair<int, int>> category_counts_vec;
int selected_category = -1;
int selected_count = 0;
for (auto iter = category_counts.begin(); iter != category_counts.end(); ++iter) {
if (iter->second > selected_count) {
selected_category = iter->first;
selected_count = iter->second;
}
}
//std::sort(category_counts_vec.begin(), category_counts_vec.end(), [](const std::pair<int, int> &left, const std::pair<int, int>& right) {
// return left.second > right.second;
//});
int filament_id = -1;
int filament_count = 0;
for (auto iter = filament_counts.begin(); iter != filament_counts.end(); ++iter) {
if (m_filament_categories[iter->first] == selected_category && iter->second > filament_count) {
filament_id = iter->first;
filament_count = iter->second;
}
}
return filament_id;
}
void WipeTower::generate_new(std::vector<std::vector<WipeTower::ToolChangeResult>> &result)
{
if (m_plan.empty())
return;
m_extra_spacing = 1.f;
plan_tower_new();
m_layer_info = m_plan.begin();
for (const auto &layer : m_plan) {
if (!layer.tool_changes.empty()) {
m_current_tool = layer.tool_changes.front().old_tool;
break;
}
}
for (auto &used : m_used_filament_length) // reset used filament stats
used = 0.f;
int wall_filament = get_wall_filament_for_all_layer();
std::vector<WipeTower::ToolChangeResult> layer_result;
int index = 0;
for (auto layer : m_plan) {
reset_block_status();
m_cur_layer_id = index++;
set_layer(layer.z, layer.height, 0, false, layer.z == m_plan.back().z);
if (m_layer_info->depth < m_perimeter_width) continue;
if (m_wipe_tower_blocks.size() == 1) {
if (m_layer_info->depth < m_wipe_tower_depth - m_perimeter_width) {
// align y shift to perimeter width
float dy = m_extra_spacing * m_perimeter_width;
m_y_shift = (m_wipe_tower_depth - m_layer_info->depth) / 2.f;
m_y_shift = align_round(m_y_shift, dy);
}
}
get_wall_skip_points(layer);
ToolChangeResult finish_layer_tcr;
ToolChangeResult timelapse_wall;
auto get_wall_filament_for_this_layer = [this, &layer, &wall_filament]() -> int {
if (layer.tool_changes.size() == 0)
return -1;
int candidate_id = -1;
for (size_t idx = 0; idx < layer.tool_changes.size(); ++idx) {
if (idx == 0) {
if (layer.tool_changes[idx].old_tool == wall_filament)
return wall_filament;
else if (m_filpar[layer.tool_changes[idx].old_tool].category == m_filpar[wall_filament].category) {
candidate_id = layer.tool_changes[idx].old_tool;
}
}
if (layer.tool_changes[idx].new_tool == wall_filament) {
return wall_filament;
}
if ((candidate_id == -1) && (m_filpar[layer.tool_changes[idx].new_tool].category == m_filpar[wall_filament].category))
candidate_id = layer.tool_changes[idx].new_tool;
}
return candidate_id == -1 ? layer.tool_changes[0].new_tool : candidate_id;
};
int wall_idx = get_wall_filament_for_this_layer();
// this layer has no tool_change
if (wall_idx == -1) {
bool need_insert_solid_infill = false;
for (const WipeTowerBlock &block : m_wipe_tower_blocks) {
if (block.solid_infill[m_cur_layer_id] && (block.filament_category != m_filament_categories[m_current_tool])) {
need_insert_solid_infill = true;
break;
}
}
if (need_insert_solid_infill) {
wall_idx = m_current_tool;
} else {
if (m_enable_timelapse_print) {
timelapse_wall = only_generate_out_wall(true);
}
finish_layer_tcr = finish_layer_new(m_enable_timelapse_print ? false : true, layer.extruder_fill);
}
}
// generate tool change
bool insert_wall = false;
int insert_finish_layer_idx = -1;
for (int i = 0; i < int(layer.tool_changes.size()); ++i) {
if (i == 0 && m_enable_timelapse_print) {
timelapse_wall = only_generate_out_wall(true);
}
ToolChangeResult wall_gcode;
if (i == 0 && (layer.tool_changes[i].old_tool == wall_idx)) {
finish_layer_tcr = finish_layer_new(m_enable_timelapse_print ? false : true, false, false);
}
layer_result.emplace_back(tool_change_new(layer.tool_changes[i].new_tool));
if (i == 0 && (layer.tool_changes[i].old_tool == wall_idx)) {
}
else if (layer.tool_changes[i].new_tool == wall_idx) {
finish_layer_tcr = finish_layer_new(m_enable_timelapse_print ? false : true, false, false);
insert_finish_layer_idx = i;
}
}
// insert finish block
if (wall_idx != -1) {
if (layer.tool_changes.empty()) {
finish_layer_tcr = finish_layer_new(true, false, false);
}
for (const WipeTowerBlock& block : m_wipe_tower_blocks) {
if (block.cur_depth + EPSILON >= block.start_depth + block.layer_depths[m_cur_layer_id]) {
continue;
}
int finish_layer_filament = wall_idx;
if (block.last_filament_change_id != -1) {
finish_layer_filament = block.last_filament_change_id;
} else if (block.last_nozzle_change_id != -1) {
finish_layer_filament = block.last_nozzle_change_id;
}
ToolChangeResult finish_block_tcr;
if (block.solid_infill[m_cur_layer_id] && block.filament_category != m_filament_categories[wall_idx])
finish_block_tcr = finish_block_solid(block, finish_layer_filament, layer.extruder_fill);
else
finish_block_tcr = finish_block(block, finish_layer_filament, layer.extruder_fill);
bool has_inserted = false;
{
auto fc_iter = std::find_if(layer_result.begin(), layer_result.end(),
[&finish_layer_filament](const WipeTower::ToolChangeResult &item) { return item.new_tool == finish_layer_filament; });
if (fc_iter != layer_result.end()) {
*fc_iter = merge_tcr(*fc_iter, finish_block_tcr);
has_inserted = true;
}
}
if (block.last_filament_change_id == -1 && !has_inserted) {
auto nc_iter = std::find_if(layer_result.begin(), layer_result.end(),
[&finish_layer_filament](const WipeTower::ToolChangeResult &item) { return item.initial_tool == finish_layer_filament; });
if (nc_iter != layer_result.end()) {
*nc_iter = merge_tcr(finish_block_tcr, *nc_iter);
has_inserted = true;
}
}
if (!has_inserted) {
if (finish_block_tcr.gcode.empty())
finish_block_tcr = finish_block_tcr;
else
finish_layer_tcr = merge_tcr(finish_layer_tcr, finish_block_tcr);
}
assert(has_inserted);
}
}
if (layer_result.empty()) {
// there is nothing to merge finish_layer with
layer_result.emplace_back(std::move(finish_layer_tcr));
}
else if (is_valid_gcode(finish_layer_tcr.gcode)) {
if (insert_finish_layer_idx == -1)
layer_result[0] = merge_tcr(finish_layer_tcr, layer_result[0]);
else
layer_result[insert_finish_layer_idx] = merge_tcr(layer_result[insert_finish_layer_idx], finish_layer_tcr);
}
if (m_enable_timelapse_print) {
layer_result.insert(layer_result.begin(), std::move(timelapse_wall));
}
result.emplace_back(std::move(layer_result));
}
}
// Processes vector m_plan and calls respective functions to generate G-code for the wipe tower
// Resulting ToolChangeResults are appended into vector "result"
void WipeTower::generate(std::vector<std::vector<WipeTower::ToolChangeResult>> &result)
{
if (m_plan.empty())
return;
m_extra_spacing = 1.f;
plan_tower();
// BBS
#if 0
for (int i=0;i<5;++i) {
save_on_last_wipe();
plan_tower();
}
#endif
m_layer_info = m_plan.begin();
// we don't know which extruder to start with - we'll set it according to the first toolchange
for (const auto& layer : m_plan) {
if (!layer.tool_changes.empty()) {
m_current_tool = layer.tool_changes.front().old_tool;
break;
}
}
for (auto& used : m_used_filament_length) // reset used filament stats
used = 0.f;
m_old_temperature = -1; // reset last temperature written in the gcode
std::vector<WipeTower::ToolChangeResult> layer_result;
int index = 0;
for (auto layer : m_plan)
{
m_cur_layer_id = index++;
set_layer(layer.z, layer.height, 0, false/*layer.z == m_plan.front().z*/, layer.z == m_plan.back().z);
// BBS
//m_internal_rotation += 180.f;
if (m_layer_info->depth < m_perimeter_width)
continue;
if (m_layer_info->depth < m_wipe_tower_depth - m_perimeter_width) {
// align y shift to perimeter width
float dy = m_extra_spacing * m_perimeter_width;
m_y_shift = (m_wipe_tower_depth - m_layer_info->depth) / 2.f;
m_y_shift = align_round(m_y_shift, dy);
}
// BBS: consider both soluable and support properties
int idx = first_toolchange_to_nonsoluble_nonsupport (layer.tool_changes);
ToolChangeResult finish_layer_tcr;
ToolChangeResult timelapse_wall;
if (idx == -1) {
// if there is no toolchange switching to non-soluble, finish layer
// will be called at the very beginning. That's the last possibility
// where a nonsoluble tool can be.
if (m_enable_timelapse_print) {
timelapse_wall = only_generate_out_wall();
}
finish_layer_tcr = finish_layer(m_enable_timelapse_print ? false : true, layer.extruder_fill);
}
for (int i=0; i<int(layer.tool_changes.size()); ++i) {
if (i == 0 && m_enable_timelapse_print) {
timelapse_wall = only_generate_out_wall();
}
if (i == idx) {
layer_result.emplace_back(tool_change(layer.tool_changes[i].new_tool, m_enable_timelapse_print ? false : true));
// finish_layer will be called after this toolchange
finish_layer_tcr = finish_layer(false, layer.extruder_fill);
}
else {
if (idx == -1 && i == 0) {
layer_result.emplace_back(tool_change(layer.tool_changes[i].new_tool, false, true));
} else {
layer_result.emplace_back(tool_change(layer.tool_changes[i].new_tool));
}
}
}
if (layer_result.empty()) {
// there is nothing to merge finish_layer with
layer_result.emplace_back(std::move(finish_layer_tcr));
}
else {
if (idx == -1)
layer_result[0] = merge_tcr(finish_layer_tcr, layer_result[0]);
else if (is_valid_gcode(finish_layer_tcr.gcode))
layer_result[idx] = merge_tcr(layer_result[idx], finish_layer_tcr);
}
if (m_enable_timelapse_print) {
layer_result.insert(layer_result.begin(), std::move(timelapse_wall));
}
result.emplace_back(std::move(layer_result));
}
}
WipeTower::ToolChangeResult WipeTower::only_generate_out_wall(bool is_new_mode)
{
size_t old_tool = m_current_tool;
WipeTowerWriter writer(m_layer_height, m_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(m_extrusion_flow)
.set_z(m_z_pos)
.set_initial_tool(m_current_tool)
.set_y_shift(m_y_shift - (m_current_shape == SHAPE_REVERSED ? m_layer_info->toolchanges_depth() : 0.f));
// Slow down on the 1st layer.
bool first_layer = is_first_layer();
// BBS: speed up perimeter speed to 90mm/s for non-first layer
float feedrate = first_layer ? std::min(m_first_layer_speed * 60.f, 5400.f) : std::min(60.0f * m_filpar[m_current_tool].max_e_speed / m_extrusion_flow, 5400.f);
float fill_box_y = m_layer_info->toolchanges_depth() + m_perimeter_width;
box_coordinates fill_box(Vec2f(m_perimeter_width, fill_box_y), m_wipe_tower_width - 2 * m_perimeter_width, m_layer_info->depth - fill_box_y);
writer.set_initial_position((m_left_to_right ? fill_box.ru : fill_box.lu), // so there is never a diagonal travel
m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
bool toolchanges_on_layer = m_layer_info->toolchanges_depth() > WT_EPSILON;
// we are in one of the corners, travel to ld along the perimeter:
// BBS: Delete some unnecessary travel
//if (writer.x() > fill_box.ld.x() + EPSILON) writer.travel(fill_box.ld.x(), writer.y());
//if (writer.y() > fill_box.ld.y() + EPSILON) writer.travel(writer.x(), fill_box.ld.y());
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_Start) + "\n");
// outer perimeter (always):
// BBS
float wipe_tower_depth = m_layer_info->depth + m_perimeter_width;
if (is_new_mode && m_enable_timelapse_print)
wipe_tower_depth = m_wipe_tower_depth;
box_coordinates wt_box(Vec2f(0.f, (m_current_shape == SHAPE_REVERSED ? m_layer_info->toolchanges_depth() : 0.f)), m_wipe_tower_width, wipe_tower_depth);
wt_box = align_perimeter(wt_box);
Polygon outer_wall;
//if (m_use_gap_wall)
// generate_support_wall(writer, wt_box, feedrate, first_layer);
//else
// writer.rectangle(wt_box, feedrate);
outer_wall = generate_support_wall_new(writer, wt_box, feedrate, first_layer, m_use_rib_wall, true, m_use_gap_wall);
// Now prepare future wipe. box contains rectangle that was extruded last (ccw).
// Vec2f target = (writer.pos() == wt_box.ld ? wt_box.rd : (writer.pos() == wt_box.rd ? wt_box.ru : (writer.pos() == wt_box.ru ? wt_box.lu : wt_box.ld)));
//writer.add_wipe_point(writer.pos()).add_wipe_point(target);
writer.add_wipe_path(outer_wall, m_filpar[m_current_tool].wipe_dist);
writer.append(";" + GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Wipe_Tower_End) + "\n");
// Ask our writer about how much material was consumed.
// Skip this in case the layer is sparse and config option to not print sparse layers is enabled.
if (!m_no_sparse_layers || toolchanges_on_layer)
if (m_current_tool < m_used_filament_length.size()) m_used_filament_length[m_current_tool] += writer.get_and_reset_used_filament_length();
return construct_tcr(writer, false, old_tool, true, false, 0.f);
}
Polygon WipeTower::generate_rib_polygon(const box_coordinates &wt_box)
{
auto get_current_layer_rib_len = [](float cur_height, float max_height, float max_len) -> float { return std::abs(max_height - cur_height) / max_height * max_len; };
coord_t diagonal_width = scaled(m_rib_width)/2;
float a = this->m_wipe_tower_width, b = this->m_wipe_tower_depth;
Line line_1(Point::new_scale(Vec2f{0, 0}), Point::new_scale(Vec2f{a, b}));
Line line_2(Point::new_scale(Vec2f{a, 0}), Point::new_scale(Vec2f{0, b}));
float diagonal_extra_length = std::max(0.f, m_rib_length - (float) unscaled(line_1.length())) / 2.f;
diagonal_extra_length = scaled(get_current_layer_rib_len(this->m_z_pos, this->m_wipe_tower_height, diagonal_extra_length));
Point y_shift{0, scaled(this->m_y_shift)};
line_1.extend(double(diagonal_extra_length));
line_2.extend(double(diagonal_extra_length));
line_1.translate(-y_shift);
line_2.translate(-y_shift);
Polygon poly_1 = generate_rectange(line_1, diagonal_width);
Polygon poly_2 = generate_rectange(line_2, diagonal_width);
Polygon poly;
poly.points.push_back(Point::new_scale(wt_box.ld));
poly.points.push_back(Point::new_scale(wt_box.rd));
poly.points.push_back(Point::new_scale(wt_box.ru));
poly.points.push_back(Point::new_scale(wt_box.lu));
Polygons p_1_2 = union_({poly_1, poly_2, poly});
//Polygon res_poly = p_1_2.front();
//for (auto &p : res_poly.points) res.push_back(unscale(p).cast<float>());
/*if (p_1_2.front().points.size() != 16)
std::cout << "error " << std::endl;*/
return p_1_2.front();
};
Polygon WipeTower::generate_support_wall_new(WipeTowerWriter &writer, const box_coordinates &wt_box, double feedrate, bool first_layer,bool rib_wall, bool extrude_perimeter, bool skip_points)
{
auto get_closet_idx = [this, &writer](Polylines &pls) -> std::pair<int,int> {
Vec2f anchor{writer.x(), writer.y()};
int closestIndex = -1;
int closestPl = -1;
float minDistance = std::numeric_limits<float>::max();
for (int i = 0; i < pls.size(); ++i) {
for (int j = 0; j < pls[i].size(); ++j) {
float distance = (unscaled<float>(pls[i][j]) - anchor).squaredNorm();
if (distance < minDistance) {
minDistance = distance;
closestPl = i;
closestIndex = j;
}
}
}
return {closestPl, closestIndex};
};
float retract_length = m_filpar[m_current_tool].retract_length;
float retract_speed = m_filpar[m_current_tool].retract_speed * 60;
Polygon wall_polygon = rib_wall ? generate_rib_polygon(wt_box) : generate_rectange_polygon(wt_box.ld, wt_box.ru);
Polylines result_wall;
Polygon insert_skip_polygon;
if (m_used_fillet) {
if (!rib_wall && m_y_shift > EPSILON)// do nothing because the fillet will cause it to be suspended.
{
} else {
wall_polygon = rib_wall ? rounding_polygon(wall_polygon) : wall_polygon; // rectangle_wall do nothing
Polygon wt_box_polygon = generate_rectange_polygon(wt_box.ld, wt_box.ru);
wall_polygon = union_({wall_polygon, wt_box_polygon}).front();
}
}
if (!extrude_perimeter) return wall_polygon;
if (skip_points) { result_wall = contrust_gap_for_skip_points(wall_polygon,m_wall_skip_points,m_wipe_tower_width,2.5*m_perimeter_width,insert_skip_polygon); }
else {
result_wall.push_back(to_polyline(wall_polygon));
insert_skip_polygon = wall_polygon;
}
writer.generate_path(result_wall, feedrate, retract_length, retract_speed,m_used_fillet);
if (m_cur_layer_id == 0) {
BoundingBox bbox = get_extents(result_wall);
m_rib_offset = Vec2f(-unscaled<float>(bbox.min.x()), -unscaled<float>(bbox.min.y()));
}
return insert_skip_polygon;
}
Polygon WipeTower::generate_support_wall(WipeTowerWriter &writer, const box_coordinates &wt_box, double feedrate, bool first_layer)
{
float retract_length = m_filpar[m_current_tool].retract_length;
float retract_speed = m_filpar[m_current_tool].retract_speed *60 ;
bool is_left = false;
bool is_right = false;
for (auto pt : m_wall_skip_points) {
if (abs(pt.x()) < EPSILON) {
is_left = true;
} else if (abs(pt.x() - m_wipe_tower_width) < EPSILON) {
is_right = true;
}
}
if (is_left && is_right) {
Vec2f *p = nullptr;
p->x();
}
if (!is_left && !is_right) {
Vec2f *p = nullptr;
p->x();
}
// 3 ------------- 2
// | |
// | |
// 0 ------------- 1
int index = 0;
Vec2f cur_pos = writer.pos();
if (abs(cur_pos.x() - wt_box.ld.x()) > abs(cur_pos.x() - wt_box.rd.x())) {
if (abs(cur_pos.y() - wt_box.ld.y()) > abs(cur_pos.y() - wt_box.lu.y())) {
index = 2;
} else {
index = 1;
}
} else {
if (abs(cur_pos.y() - wt_box.ld.y()) > abs(cur_pos.y() - wt_box.lu.y())) {
index = 3;
} else {
index = 0;
}
}
std::vector<Vec2f> points;
points.emplace_back(wt_box.ld);
points.emplace_back(wt_box.rd);
points.emplace_back(wt_box.ru);
points.emplace_back(wt_box.lu);
writer.travel(points[index]);
int extruded_nums = 0;
while (extruded_nums < 4) {
index = (index + 1) % 4;
if (index == 2) {
if (is_right) {
std::vector<Segment> break_segments = remove_points_from_segment(Segment(wt_box.rd, wt_box.ru), m_wall_skip_points, 2.5 * m_perimeter_width);
for (auto iter = break_segments.begin(); iter != break_segments.end(); ++iter) {
float dx = iter->start.x() - writer.pos().x();
float dy = iter->start.y() - writer.pos().y();
float len = std::sqrt(dx * dx + dy * dy);
if (len > 0) {
writer.retract(retract_length, retract_speed);
writer.travel(iter->start, 600.);
writer.retract(-retract_length, retract_speed);
} else
writer.travel(iter->start, 600.);
writer.extrude(iter->end, feedrate);
}
writer.travel(wt_box.ru, feedrate);
} else {
writer.extrude(wt_box.ru, feedrate);
}
} else if (index == 0) {
if (is_left) {
std::vector<Segment> break_segments = remove_points_from_segment(Segment(wt_box.ld, wt_box.lu), m_wall_skip_points, 2.5 * m_perimeter_width);
for (auto iter = break_segments.rbegin(); iter != break_segments.rend(); ++iter) {
float dx = iter->end.x() - writer.pos().x();
float dy = iter->end.y() - writer.pos().y();
float len = std::sqrt(dx * dx + dy * dy);
if (len > 0) {
writer.retract(retract_length, retract_speed);
writer.travel(iter->end, 600.);
writer.retract(-retract_length, retract_speed);
} else
writer.travel(iter->end, 600.);
writer.extrude(iter->start, feedrate);
}
writer.travel(wt_box.ld, feedrate);
} else {
writer.extrude(wt_box.ld, feedrate);
}
} else {
writer.extrude(points[index], feedrate);
}
extruded_nums++;
}
return Polygon();
}
bool WipeTower::get_floating_area(float &start_pos_y, float &end_pos_y) const {
if (m_layer_info == m_plan.begin() || (m_layer_info - 1) == m_plan.begin())
return false;
float last_layer_fill_box_y = (m_layer_info - 1)->toolchanges_depth() + m_perimeter_width;
float last_layer_wipe_depth = (m_layer_info - 1)->depth;
if (last_layer_wipe_depth - last_layer_fill_box_y <= 2 * m_perimeter_width)
return false;
start_pos_y = last_layer_fill_box_y + m_perimeter_width;
end_pos_y = last_layer_wipe_depth - m_perimeter_width;
return true;
}
bool WipeTower::need_thick_bridge_flow(float pos_y) const {
if (m_extrusion_flow >= extrusion_flow(0.2))
return false;
float y_min = 0., y_max = 0.;
if (get_floating_area(y_min, y_max)) {
return pos_y > y_min && pos_y < y_max;
}
return false;
}
} // namespace Slic3r