3D-printing/OrcaSlicer
1
0
Fork 0
mirror of https://github.com/SoftFever/OrcaSlicer.git synced 2025-07-21 21:58:03 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

FIX: avoid arrange to nonprefered region

Browse source 
Previously we assume the NFP of exclude regions are rectangle, which was
not always right. Now we calculate the NFP and find a best new position
to shift.

Change-Id: I02c075603cf71dd3c9146d7ac7a6706c0f850669
(cherry picked from commit 713ebd666c90d5dcfaf89914c37d211e9a470e99)
This commit is contained in:
manch1n 2023-04-11 16:49:02 +08:00 • committed by Lane.Wei
parent 56f1a49232
commit f49c151611
5 changed files with 63 additions and 65 deletions
Download patch file Download diff file Expand all files Collapse all files

67
src/libnest2d/include/libnest2d/placers/nfpplacer.hpp
View file

@ -1099,42 +1099,43 @@ private:
auto d = cb - ci;
// BBS make sure the item won't clash with excluded regions
if(1)
{
// do we have wipe tower after arranging?
std::set<int> extruders;
for (const Item& item : items_) {
if (!item.is_virt_object) { extruders.insert(item.extrude_ids.begin(), item.extrude_ids.end()); }
}
bool need_wipe_tower = extruders.size() > 1;
// do we have wipe tower after arranging?
std::set<int> extruders;
for (const Item& item : items_) {
if (!item.is_virt_object) { extruders.insert(item.extrude_ids.begin(), item.extrude_ids.end()); }
}
bool need_wipe_tower = extruders.size() > 1;
std::vector<RawShape> objs,excludes;
for (const Item &item : items_) {
if (item.isFixed()) continue;
objs.push_back(item.transformedShape());
}
std::vector<RawShape> objs,excludes;
for (const Item &item : items_) {
if (item.isFixed()) continue;
objs.push_back(item.transformedShape());
}
if (objs.empty())
return;
{ // find a best position inside NFP of fixed items (excluded regions), so the center of pile is cloest to bed center
RawShape objs_convex_hull = sl::convexHull(objs);
if (objs.size() != 0) {
for (const Item &item : config_.m_excluded_regions) { excludes.push_back(item.transformedShape()); }
for (const Item &item : items_) {
if (item.isFixed()) {
if (!(item.is_wipe_tower && !need_wipe_tower))
excludes.push_back(item.transformedShape());
}
for (const Item &item : config_.m_excluded_regions) { excludes.push_back(item.transformedShape()); }
for (const Item &item : items_) {
if (item.isFixed()) {
if (!(item.is_wipe_tower && !need_wipe_tower))
excludes.push_back(item.transformedShape());
}
Box binbb = sl::boundingBox(bin_);
auto allowShifts = calcnfp(objs_convex_hull, excludes, binbb, Lvl<MaxNfpLevel::value>());
int maxAllowShiftX = 0;
int maxAllowShiftY = 0;
for (const auto &shiftShape : allowShifts) {
auto shiftBox = sl::boundingBox(shiftShape); // assume that the exclude region is box so that the nfp is box.
maxAllowShiftX = shiftBox.width();
maxAllowShiftY = shiftBox.height();
}
int finalShiftX = std::min(std::abs(maxAllowShiftX), std::abs(d.x()));
int finalShiftY = std::min(std::abs(maxAllowShiftY), std::abs(d.y()));
d.x() = d.x() > 0 ? finalShiftX : -finalShiftX;
d.y() = d.y() > 0 ? finalShiftY : -finalShiftY;
}
auto nfps = calcnfp(objs_convex_hull, excludes, bbin, Lvl<MaxNfpLevel::value>());
if (nfps.empty()) {
return;
}
Item objs_convex_hull_item(objs_convex_hull);
Vertex objs_convex_hull_ref = objs_convex_hull_item.referenceVertex();
Vertex diff = objs_convex_hull_ref - sl::boundingBox(objs_convex_hull).center();
Vertex ref_aligned = cb + diff; // reference point when pile center aligned with bed center
bool ref_aligned_is_ok = std::any_of(nfps.begin(), nfps.end(), [&ref_aligned](auto& nfp) {return sl::isInside(ref_aligned, nfp); });
if (!ref_aligned_is_ok) {
// ref_aligned is not good, then find a nearest point on nfp boundary
Vertex ref_projected = projection_onto(nfps, ref_aligned);
d += (ref_projected - ref_aligned);
}
}
for(Item& item : items_)