3D-printing/OrcaSlicer
1
0
Fork 0
mirror of https://github.com/SoftFever/OrcaSlicer.git synced 2025-07-11 08:47:52 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

The gizmo is now able to triangulate and show the cut, the triangulated cut is cached

Browse source
This commit is contained in:
Lukas Matena 2019-03-27 07:44:02 +01:00
parent 9b7857aaab
commit bbda1896f9
6 changed files with 150 additions and 48 deletions
Download patch file Download diff file Expand all files Collapse all files

53
src/libslic3r/TriangleMesh.cpp
View file

@ -693,6 +693,16 @@ void TriangleMeshSlicer::init(TriangleMesh *_mesh, throw_on_cancel_callback_type
}
}
void TriangleMeshSlicer::set_up_direction(const Vec3f& up)
{
m_quaternion.setFromTwoVectors(up, Vec3f::UnitZ());
m_use_quaternion = true;
}
void TriangleMeshSlicer::slice(const std::vector<float> &z, std::vector<Polygons>* layers, throw_on_cancel_callback_type throw_on_cancel) const
{
BOOST_LOG_TRIVIAL(debug) << "TriangleMeshSlicer::slice";
@ -795,7 +805,14 @@ void TriangleMeshSlicer::slice(const std::vector<float> &z, std::vector<Polygons
void TriangleMeshSlicer::_slice_do(size_t facet_idx, std::vector<IntersectionLines>* lines, boost::mutex* lines_mutex,
const std::vector<float> &z) const
{
const stl_facet &facet = this->mesh->stl.facet_start[facet_idx];
const stl_facet &facet_orig = this->mesh->stl.facet_start[facet_idx];
stl_facet facet = facet_orig;
if (m_use_quaternion) {
facet.vertex[0] = m_quaternion * facet.vertex[0];
facet.vertex[1] = m_quaternion * facet.vertex[1];
facet.vertex[2] = m_quaternion * facet.vertex[2];
}
// find facet extents
const float min_z = fminf(facet.vertex[0](2), fminf(facet.vertex[1](2), facet.vertex[2](2)));
@ -860,26 +877,42 @@ TriangleMeshSlicer::FacetSliceType TriangleMeshSlicer::slice_facet(
IntersectionPoint points[3];
size_t num_points = 0;
size_t point_on_layer = size_t(-1);
// Reorder vertices so that the first one is the one with lowest Z.
// This is needed to get all intersection lines in a consistent order
// (external on the right of the line)
const int *vertices = this->mesh->stl.v_indices[facet_idx].vertex;
int i = (facet.vertex[1].z() == min_z) ? 1 : ((facet.vertex[2].z() == min_z) ? 2 : 0);
// These are used only if the cut plane is inclined:
stl_vertex rotated_a;
stl_vertex rotated_b;
for (int j = i; j - i < 3; ++j) { // loop through facet edges
int edge_id = this->facets_edges[facet_idx * 3 + (j % 3)];
int a_id = vertices[j % 3];
int b_id = vertices[(j+1) % 3];
const stl_vertex *a = &this->v_scaled_shared[a_id];
const stl_vertex *b = &this->v_scaled_shared[b_id];
const stl_vertex *a;
const stl_vertex *b;
if (m_use_quaternion) {
rotated_a = m_quaternion * this->v_scaled_shared[a_id];
rotated_b = m_quaternion * this->v_scaled_shared[b_id];
a = &rotated_a;
b = &rotated_b;
}
else {
a = &this->v_scaled_shared[a_id];
b = &this->v_scaled_shared[b_id];
}
// Is edge or face aligned with the cutting plane?
if (a->z() == slice_z && b->z() == slice_z) {
// Edge is horizontal and belongs to the current layer.
const stl_vertex &v0 = this->v_scaled_shared[vertices[0]];
const stl_vertex &v1 = this->v_scaled_shared[vertices[1]];
const stl_vertex &v2 = this->v_scaled_shared[vertices[2]];
const stl_normal &normal = this->mesh->stl.facet_start[facet_idx].normal;
const stl_vertex &v0 = m_use_quaternion ? stl_vertex(m_quaternion * this->v_scaled_shared[vertices[0]]) : this->v_scaled_shared[vertices[0]];
const stl_vertex &v1 = m_use_quaternion ? stl_vertex(m_quaternion * this->v_scaled_shared[vertices[1]]) : this->v_scaled_shared[vertices[1]];
const stl_vertex &v2 = m_use_quaternion ? stl_vertex(m_quaternion * this->v_scaled_shared[vertices[2]]) : this->v_scaled_shared[vertices[2]];
const stl_normal &normal = m_use_quaternion ? stl_vertex(m_quaternion * this->mesh->stl.facet_start[facet_idx].normal) : this->mesh->stl.facet_start[facet_idx].normal;
// We may ignore this edge for slicing purposes, but we may still use it for object cutting.
FacetSliceType result = Slicing;
if (min_z == max_z) {
@ -995,7 +1028,9 @@ TriangleMeshSlicer::FacetSliceType TriangleMeshSlicer::slice_facet(
if (i == line_out->a_id || i == line_out->b_id)
i = vertices[2];
assert(i != line_out->a_id && i != line_out->b_id);
line_out->edge_type = (this->v_scaled_shared[i].z() < slice_z) ? feTop : feBottom;
line_out->edge_type = ((m_use_quaternion ?
m_quaternion * this->v_scaled_shared[i].z()
: this->v_scaled_shared[i].z()) < slice_z) ? feTop : feBottom;
}
#endif
return Slicing;