Eradicated admesh from TriangleMesh:

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.

4 files changed, 0 insertions, 6 deletions

diff --git a/tests/libslic3r/test_3mf.cpp b/tests/libslic3r/test_3mf.cpp
index 5ab000d04..0ebe47a07 100644
--- a/tests/libslic3r/test_3mf.cpp
+++ b/tests/libslic3r/test_3mf.cpp
@@ -65,10 +65,7 @@ SCENARIO("Export+Import geometry to/from 3mf file cycle", "[3mf]") {
 
             // compare meshes
             TriangleMesh src_mesh = src_model.mesh();
-            src_mesh.repair();
-
             TriangleMesh dst_mesh = dst_model.mesh();
-            dst_mesh.repair();
 
             bool res = src_mesh.its.vertices.size() == dst_mesh.its.vertices.size();
             if (res) {
diff --git a/tests/libslic3r/test_aabbindirect.cpp b/tests/libslic3r/test_aabbindirect.cpp
index c0792a943..3b834c442 100644
--- a/tests/libslic3r/test_aabbindirect.cpp
+++ b/tests/libslic3r/test_aabbindirect.cpp
@@ -9,7 +9,6 @@ using namespace Slic3r;
 TEST_CASE("Building a tree over a box, ray caster and closest query", "[AABBIndirect]")
 {
     TriangleMesh tmesh = make_cube(1., 1., 1.);
-    tmesh.repair();
 
     auto tree = AABBTreeIndirect::build_aabb_tree_over_indexed_triangle_set(tmesh.its.vertices, tmesh.its.indices);
     REQUIRE(! tree.empty());
diff --git a/tests/libslic3r/test_hollowing.cpp b/tests/libslic3r/test_hollowing.cpp
index 1f5ca3845..ad4f8f296 100644
--- a/tests/libslic3r/test_hollowing.cpp
+++ b/tests/libslic3r/test_hollowing.cpp
@@ -13,7 +13,6 @@ TEST_CASE("Hollow two overlapping spheres") {
     sphere2.translate( 5.f, 0.f, 0.f);
 
     sphere1.merge(sphere2);
-    sphere1.require_shared_vertices();
 
     sla::hollow_mesh(sphere1, sla::HollowingConfig{}, sla::HollowingFlags::hfRemoveInsideTriangles);
 
diff --git a/tests/libslic3r/test_marchingsquares.cpp b/tests/libslic3r/test_marchingsquares.cpp
index a0b27f6d8..3553697ac 100644
--- a/tests/libslic3r/test_marchingsquares.cpp
+++ b/tests/libslic3r/test_marchingsquares.cpp
@@ -319,7 +319,6 @@ static void recreate_object_from_rasters(const std::string &objname, float lh) {
     mesh.translate(tr.x(), tr.y(), tr.z());
     bb = mesh.bounding_box();
     
-    assert(mesh.has_shared_vertices());
     std::vector<ExPolygons> layers = slice_mesh_ex(mesh.its, grid(float(bb.min.z()) + lh, float(bb.max.z()), lh));
     
     sla::RasterBase::Resolution res{2560, 1440};