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admesh refactoring: separation of the shared vertices / indices

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into an indexed_triangle_set structure
This commit is contained in:
bubnikv 2019-06-10 18:30:54 +02:00
parent 65238a89b1
commit 6defabea53
11 changed files with 154 additions and 162 deletions
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46
src/libslic3r/TriangleMesh.cpp
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@ -238,20 +238,20 @@ bool TriangleMesh::needed_repair() const
void TriangleMesh::WriteOBJFile(const char* output_file)
{
stl_generate_shared_vertices(&stl);
stl_write_obj(&stl, output_file);
stl_generate_shared_vertices(&stl, its);
its_write_obj(its, output_file);
}
void TriangleMesh::scale(float factor)
{
stl_scale(&(this->stl), factor);
stl_invalidate_shared_vertices(&this->stl);
this->its.clear();
}
void TriangleMesh::scale(const Vec3d &versor)
{
stl_scale_versor(&this->stl, versor.cast<float>());
stl_invalidate_shared_vertices(&this->stl);
this->its.clear();
}
void TriangleMesh::translate(float x, float y, float z)
@ -259,7 +259,7 @@ void TriangleMesh::translate(float x, float y, float z)
if (x == 0.f && y == 0.f && z == 0.f)
return;
stl_translate_relative(&(this->stl), x, y, z);
stl_invalidate_shared_vertices(&this->stl);
this->its.clear();
}
void TriangleMesh::translate(const Vec3f &displacement)
@ -282,7 +282,7 @@ void TriangleMesh::rotate(float angle, const Axis &axis)
} else if (axis == Z) {
stl_rotate_z(&(this->stl), angle);
}
stl_invalidate_shared_vertices(&this->stl);
this->its.clear();
}
void TriangleMesh::rotate(float angle, const Vec3d& axis)
@ -305,13 +305,13 @@ void TriangleMesh::mirror(const Axis &axis)
} else if (axis == Z) {
stl_mirror_xy(&this->stl);
}
stl_invalidate_shared_vertices(&this->stl);
this->its.clear();
}
void TriangleMesh::transform(const Transform3d& t, bool fix_left_handed)
{
stl_transform(&stl, t);
stl_invalidate_shared_vertices(&stl);
this->its.clear();
if (fix_left_handed && t.matrix().block(0, 0, 3, 3).determinant() < 0.) {
// Left handed transformation is being applied. It is a good idea to flip the faces and their normals.
this->repair();
@ -322,7 +322,7 @@ void TriangleMesh::transform(const Transform3d& t, bool fix_left_handed)
void TriangleMesh::transform(const Matrix3d& m, bool fix_left_handed)
{
stl_transform(&stl, m);
stl_invalidate_shared_vertices(&stl);
this->its.clear();
if (fix_left_handed && m.determinant() < 0.) {
// Left handed transformation is being applied. It is a good idea to flip the faces and their normals.
this->repair();
@ -443,7 +443,7 @@ void TriangleMesh::merge(const TriangleMesh &mesh)
{
// reset stats and metadata
int number_of_facets = this->stl.stats.number_of_facets;
stl_invalidate_shared_vertices(&this->stl);
this->its.clear();
this->repaired = false;
// update facet count and allocate more memory
@ -484,9 +484,9 @@ Polygon TriangleMesh::convex_hull()
{
this->require_shared_vertices();
Points pp;
pp.reserve(this->stl.v_shared.size());
for (size_t i = 0; i < this->stl.v_shared.size(); ++ i) {
const stl_vertex &v = this->stl.v_shared[i];
pp.reserve(this->its.vertices.size());
for (size_t i = 0; i < this->its.vertices.size(); ++ i) {
const stl_vertex &v = this->its.vertices[i];
pp.emplace_back(Point::new_scale(v(0), v(1)));
}
return Slic3r::Geometry::convex_hull(pp);
@ -504,14 +504,14 @@ BoundingBoxf3 TriangleMesh::bounding_box() const
BoundingBoxf3 TriangleMesh::transformed_bounding_box(const Transform3d &trafo) const
{
BoundingBoxf3 bbox;
if (stl.v_shared.empty()) {
if (this->its.vertices.empty()) {
// Using the STL faces.
for (const stl_facet &facet : this->stl.facet_start)
for (size_t j = 0; j < 3; ++ j)
bbox.merge(trafo * facet.vertex[j].cast<double>());
} else {
// Using the shared vertices should be a bit quicker than using the STL faces.
for (const stl_vertex &v : this->stl.v_shared)
for (const stl_vertex &v : this->its.vertices)
bbox.merge(trafo * v.cast<double>());
}
return bbox;
@ -576,11 +576,11 @@ void TriangleMesh::require_shared_vertices()
assert(stl_validate(&this->stl));
if (! this->repaired)
this->repair();
if (this->stl.v_shared.empty()) {
if (this->its.vertices.empty()) {
BOOST_LOG_TRIVIAL(trace) << "TriangleMeshSlicer::require_shared_vertices - stl_generate_shared_vertices";
stl_generate_shared_vertices(&(this->stl));
stl_generate_shared_vertices(&this->stl, this->its);
}
assert(stl_validate(&this->stl));
assert(stl_validate(&this->stl, this->its));
BOOST_LOG_TRIVIAL(trace) << "TriangleMeshSlicer::require_shared_vertices - end";
}
@ -592,9 +592,9 @@ void TriangleMeshSlicer::init(const TriangleMesh *_mesh, throw_on_cancel_callbac
throw_on_cancel();
facets_edges.assign(_mesh->stl.stats.number_of_facets * 3, -1);
v_scaled_shared.assign(_mesh->stl.v_shared.size(), stl_vertex());
v_scaled_shared.assign(_mesh->its.vertices.size(), stl_vertex());
for (size_t i = 0; i < v_scaled_shared.size(); ++ i)
this->v_scaled_shared[i] = _mesh->stl.v_shared[i] / float(SCALING_FACTOR);
this->v_scaled_shared[i] = _mesh->its.vertices[i] / float(SCALING_FACTOR);
// Create a mapping from triangle edge into face.
struct EdgeToFace {
@ -614,8 +614,8 @@ void TriangleMeshSlicer::init(const TriangleMesh *_mesh, throw_on_cancel_callbac
for (uint32_t facet_idx = 0; facet_idx < this->mesh->stl.stats.number_of_facets; ++ facet_idx)
for (int i = 0; i < 3; ++ i) {
EdgeToFace &e2f = edges_map[facet_idx*3+i];
e2f.vertex_low = this->mesh->stl.v_indices[facet_idx].vertex[i];
e2f.vertex_high = this->mesh->stl.v_indices[facet_idx].vertex[(i + 1) % 3];
e2f.vertex_low = this->mesh->its.indices[facet_idx].vertex[i];
e2f.vertex_high = this->mesh->its.indices[facet_idx].vertex[(i + 1) % 3];
e2f.face = facet_idx;
// 1 based indexing, to be always strictly positive.
e2f.face_edge = i + 1;
@ -852,7 +852,7 @@ TriangleMeshSlicer::FacetSliceType TriangleMeshSlicer::slice_facet(
// 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;
const int *vertices = this->mesh->its.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 tilted: