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FIX:mesh's volume <0.01mm^3,should ignore 

jira: STUDIO-7808
Change-Id: Ie6d1b60314cc2303c96f2f29a08eedc6ee66b06c
This commit is contained in:
zhou.xu 2024-08-06 19:39:24 +08:00 committed by Lane.Wei
parent 4bf4e1bb91
commit 438d9201fc
1 changed files with 20 additions and 17 deletions
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37
src/libslic3r/TriangleMesh.cpp
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@ -39,7 +39,7 @@ static void update_bounding_box(const indexed_triangle_set &its, TriangleMeshSta
BoundingBoxf3 bbox = Slic3r::bounding_box(its);
out.min = bbox.min.cast<float>();
out.max = bbox.max.cast<float>();
out.size = out.max - out.min;
out.size = out.max - out.min;
}
static void fill_initial_stats(const indexed_triangle_set &its, TriangleMeshStats &out)
@ -94,7 +94,7 @@ static void trianglemesh_repair_on_import(stl_file &stl)
stl.stats.facets_w_1_bad_edge = (stl.stats.connected_facets_2_edge - stl.stats.connected_facets_3_edge);
stl.stats.facets_w_2_bad_edge = (stl.stats.connected_facets_1_edge - stl.stats.connected_facets_2_edge);
stl.stats.facets_w_3_bad_edge = (stl.stats.number_of_facets - stl.stats.connected_facets_1_edge);
// checking nearby
//int last_edges_fixed = 0;
float tolerance = (float)stl.stats.shortest_edge;
@ -119,7 +119,7 @@ static void trianglemesh_repair_on_import(stl_file &stl)
}
}
assert(stl_validate(&stl));
// remove_unconnected
if (stl.stats.connected_facets_3_edge < (int)stl.stats.number_of_facets) {
#ifdef SLIC3R_TRACE_REPAIR
@ -128,7 +128,7 @@ static void trianglemesh_repair_on_import(stl_file &stl)
stl_remove_unconnected_facets(&stl);
assert(stl_validate(&stl));
}
// fill_holes
#if 0
// Don't fill holes, the current algorithm does more harm than good on complex holes.
@ -155,7 +155,7 @@ static void trianglemesh_repair_on_import(stl_file &stl)
#endif /* SLIC3R_TRACE_REPAIR */
stl_fix_normal_values(&stl);
assert(stl_validate(&stl));
// always calculate the volume and reverse all normals if volume is negative
#ifdef SLIC3R_TRACE_REPAIR
BOOST_LOG_TRIVIAL(trace) << "\tstl_calculate_volume";
@ -163,7 +163,7 @@ static void trianglemesh_repair_on_import(stl_file &stl)
// If the volume is negative, all the facets are flipped and added to stats.facets_reversed.
stl_calculate_volume(&stl);
assert(stl_validate(&stl));
// neighbors
#ifdef SLIC3R_TRACE_REPAIR
BOOST_LOG_TRIVIAL(trace) << "\tstl_verify_neighbors";
@ -394,11 +394,14 @@ std::vector<TriangleMesh> TriangleMesh::split() const
out.reserve(itss.size());
for (indexed_triangle_set &m : itss) {
// The TriangleMesh constructor shall fill in the mesh statistics including volume.
out.emplace_back(std::move(m));
if (TriangleMesh &triangle_mesh = out.back(); triangle_mesh.volume() < 0)
// Some source mesh parts may be incorrectly oriented. Correct them.
triangle_mesh.flip_triangles();
TriangleMesh temp_triangle_mesh(std::move(m));
if (abs(temp_triangle_mesh.volume()< 0.01)) {//0.01mm^3
continue;
}
if (temp_triangle_mesh.volume() < 0) {// Some source mesh parts may be incorrectly oriented. Correct them.
temp_triangle_mesh.flip_triangles();
}
out.emplace_back(temp_triangle_mesh);
}
return out;
}
@ -587,8 +590,8 @@ static inline std::vector<Vec3i> its_face_edge_ids_impl(const indexed_triangle_s
}
if (! found) {
//FIXME Vojtech: Trying to find an edge with equal orientation. This smells.
// admesh can assign the same edge ID to more than two facets (which is
// still topologically correct), so we have to search for a duplicate of
// admesh can assign the same edge ID to more than two facets (which is
// still topologically correct), so we have to search for a duplicate of
// this edge too in case it was already seen in this orientation
for (j = i + 1; j < edges_map.size() && edge_i == edges_map[j]; ++ j)
if (edges_map[j].face != -1) {
@ -914,7 +917,7 @@ indexed_triangle_set its_make_prism(float width, float length, float height)
};
}
// Generate the mesh for a cylinder and return it, using
// Generate the mesh for a cylinder and return it, using
// the generated angle to calculate the top mesh triangles.
// Default is 360 sides, angle fa is in radians.
indexed_triangle_set its_make_cylinder(double r, double h, double fa)
@ -1060,7 +1063,7 @@ indexed_triangle_set its_make_pyramid(float base, float height)
}
// Generates mesh for a sphere centered about the origin, using the generated angle
// to determine the granularity.
// to determine the granularity.
// Default angle is 1 degree.
//FIXME better to discretize an Icosahedron recursively http://www.songho.ca/opengl/gl_sphere.html
indexed_triangle_set its_make_sphere(double radius, double fa)
@ -1705,7 +1708,7 @@ float its_average_edge_length(const indexed_triangle_set &its)
double edge_length = 0.f;
for (size_t i = 0; i < its.indices.size(); ++ i) {
const its_triangle v = its_triangle_vertices(its, i);
edge_length += (v[1] - v[0]).cast<double>().norm() +
edge_length += (v[1] - v[0]).cast<double>().norm() +
(v[2] - v[0]).cast<double>().norm() +
(v[1] - v[2]).cast<double>().norm();
}
@ -1787,7 +1790,7 @@ std::vector<Vec3i> its_face_neighbors_par(const indexed_triangle_set &its)
return create_face_neighbors_index(ex_tbb, its);
}
std::vector<Vec3f> its_face_normals(const indexed_triangle_set &its)
std::vector<Vec3f> its_face_normals(const indexed_triangle_set &its)
{
std::vector<Vec3f> normals;
normals.reserve(its.indices.size());