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Eradicated admesh from TriangleMesh:

Browse Source 
TriangleMesh newly only holds indexed_triangle_set and
TriangleMeshStats. TriangleMeshStats contains an excerpt of stl_stats.
TriangleMeshStats are updated when initializing with indexed_triangle_set.

Admesh triangle mesh fixing is newly only used when loading an STL.
AMF / 3MF / OBJ file formats are already indexed triangle sets, thus
they are no more converted to admesh stl_file format, nor fixed
through admesh repair machinery. When importing AMF / 3MF / OBJ files,
volume is calculated and if negative, all faces are flipped. Also
a bounding box and number of open edges is calculated.

Implemented its_number_of_patches(), its_num_open_edges()
Optimized its_split(), its_is_splittable() using a visitor pattern.

Reworked QHull integration into TriangleMesh:
    1) Face normals were not right.
    2) Indexed triangle set is newly emitted instead of duplicating
       vertices for each face.

Fixed cut_mesh(): Orient the triangulated faces correctly.
This commit is contained in:
Vojtech Bubnik
2021-09-20 17:12:22 +02:00
parent f484953a5a
commit 8a2a9dba2f
59 changed files with 1056 additions and 1758 deletions
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5
tests/sla_print/sla_supptgen_tests.cpp
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@@ -13,7 +13,6 @@ TEST_CASE("Overhanging point should be supported", "[SupGen]") {
// Pyramid with 45 deg slope
TriangleMesh mesh = make_pyramid(10.f, 10.f);
mesh.rotate_y(float(PI));
mesh.require_shared_vertices();
mesh.WriteOBJFile("Pyramid.obj");
sla::SupportPoints pts = calc_support_pts(mesh);
@@ -56,7 +55,6 @@ TEST_CASE("Overhanging horizontal surface should be supported", "[SupGen]") {
TriangleMesh mesh = make_cube(width, depth, height);
mesh.translate(0., 0., 5.); // lift up
mesh.require_shared_vertices();
mesh.WriteOBJFile("Cuboid.obj");
sla::SupportPointGenerator::Config cfg;
@@ -83,7 +81,6 @@ TEST_CASE("Overhanging edge should be supported", "[SupGen]") {
TriangleMesh mesh = make_prism(width, depth, height);
mesh.rotate_y(float(PI)); // rotate on its back
mesh.translate(0., 0., height);
mesh.require_shared_vertices();
mesh.WriteOBJFile("Prism.obj");
sla::SupportPointGenerator::Config cfg;
@@ -115,7 +112,6 @@ TEST_CASE("Hollowed cube should be supported from the inside", "[SupGen][Hollowe
auto h = float(bb.max.z() - bb.min.z());
Vec3f mv = bb.center().cast<float>() - Vec3f{0.f, 0.f, 0.5f * h};
mesh.translate(-mv);
mesh.require_shared_vertices();
sla::SupportPointGenerator::Config cfg;
sla::SupportPoints pts = calc_support_pts(mesh, cfg);
@@ -132,7 +128,6 @@ TEST_CASE("Two parallel plates should be supported", "[SupGen][Hollowed]")
TriangleMesh mesh_high = center_around_bb(make_cube(width, depth, height));
mesh_high.translate(0., 0., 10.); // lift up
mesh.merge(mesh_high);
mesh.require_shared_vertices();
mesh.WriteOBJFile("parallel_plates.obj");