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islands tolerance alg improved

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This commit is contained in:
PavelMikus 2022-03-25 13:31:47 +01:00
parent c2481bc7f5
commit 2d9efc7111
2 changed files with 11 additions and 6 deletions
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11
src/libslic3r/FDMSupportSpots.cpp
View File

@ -48,16 +48,15 @@ FDMSupportSpots::FDMSupportSpots(FDMSupportSpotsConfig config, indexed_triangle_
Vec3f lowest_edge_a = (vertices[1] - vertices[0]).normalized(); Vec3f lowest_edge_a = (vertices[1] - vertices[0]).normalized();
Vec3f lowest_edge_b = (vertices[2] - vertices[0]).normalized(); Vec3f lowest_edge_b = (vertices[2] - vertices[0]).normalized();
Vec3f down = -Vec3f::UnitZ();
Triangle t { }; Triangle t { };
t.indices = mesh.indices[face_index]; t.indices = mesh.indices[face_index];
t.center = (vertices[0] + vertices[1] + vertices[2]) / 3.0f; t.center = (vertices[0] + vertices[1] + vertices[2]) / 3.0f;
t.downward_dot_value = normal.dot(down); t.downward_dot_value = normal.dot(this->down);
t.index = face_index; t.index = face_index;
t.neighbours = neighbours[face_index]; t.neighbours = neighbours[face_index];
t.lowest_z_coord = vertices[0].z(); t.lowest_z_coord = vertices[0].z();
t.edge_dot_value = std::max(lowest_edge_a.dot(down), lowest_edge_b.dot(down)); t.edge_dot_value = std::max(lowest_edge_a.dot(this->down), lowest_edge_b.dot(this->down));
t.area = its_face_area(mesh, face_index); t.area = its_face_area(mesh, face_index);
t.largest_z_edge_len = std::max( t.largest_z_edge_len = std::max(
std::max((vertices[0].head<2>() - vertices[1].head<2>()).norm(), std::max((vertices[0].head<2>() - vertices[1].head<2>()).norm(),
@ -77,6 +76,8 @@ FDMSupportSpots::FDMSupportSpots(FDMSupportSpotsConfig config, indexed_triangle_
return this->m_triangles[left].lowest_z_coord < this->m_triangles[right].lowest_z_coord; return this->m_triangles[left].lowest_z_coord < this->m_triangles[right].lowest_z_coord;
} else if (this->m_triangles[left].edge_dot_value != this->m_triangles[right].edge_dot_value) { } else if (this->m_triangles[left].edge_dot_value != this->m_triangles[right].edge_dot_value) {
return this->m_triangles[left].edge_dot_value > this->m_triangles[right].edge_dot_value; return this->m_triangles[left].edge_dot_value > this->m_triangles[right].edge_dot_value;
} else if (this->m_triangles[left].center.z() != this->m_triangles[right].center.z()) {
return this->m_triangles[left].center.z() < this->m_triangles[right].center.z();
} else { } else {
return (abs(this->m_triangles[left].center.x() + this->m_triangles[left].center.y()) < return (abs(this->m_triangles[left].center.x() + this->m_triangles[left].center.y()) <
abs(this->m_triangles[right].center.x() + this->m_triangles[right].center.y())); abs(this->m_triangles[right].center.x() + this->m_triangles[right].center.y()));
@ -140,8 +141,11 @@ void FDMSupportSpots::find_support_areas() {
if (neighbour.visited) { if (neighbour.visited) {
visited_neighbours++; visited_neighbours++;
if (distance == 0 || (neighbour.center - current.center).normalized().dot(this->down)
>= 0.1) {
neighbourhood_unsupported_distance = std::min(neighbourhood_unsupported_distance, neighbourhood_unsupported_distance = std::min(neighbourhood_unsupported_distance,
neighbour.unsupported_distance + distance); neighbour.unsupported_distance + distance);
}
if (group_id == 0) { if (group_id == 0) {
group_id = neighbour.group_id; group_id = neighbour.group_id;
} }
@ -260,7 +264,6 @@ void FDMSupportSpots::debug_export() const {
for (size_t i = 0; i < this->m_triangle_indexes_by_z.size(); ++i) { for (size_t i = 0; i < this->m_triangle_indexes_by_z.size(); ++i) {
const Triangle &triangle = this->m_triangles[this->m_triangle_indexes_by_z[i]]; const Triangle &triangle = this->m_triangles[this->m_triangle_indexes_by_z[i]];
Vec3f color = value_to_rgbf(0, this->m_config.max_distance, triangle.unsupported_distance); Vec3f color = value_to_rgbf(0, this->m_config.max_distance, triangle.unsupported_distance);
std::cout << " unsupported dist: " << triangle.unsupported_distance << std::endl;
for (size_t index = 0; index < 3; ++index) { for (size_t index = 0; index < 3; ++index) {
fprintf(fp, "v %f %f %f %f %f %f\n", this->m_mesh.vertices[triangle.indices[index]](0), fprintf(fp, "v %f %f %f %f %f %f\n", this->m_mesh.vertices[triangle.indices[index]](0),
this->m_mesh.vertices[triangle.indices[index]](1), this->m_mesh.vertices[triangle.indices[index]](1),

2
src/libslic3r/FDMSupportSpots.hpp
View File

@ -50,6 +50,8 @@ struct FDMSupportSpotsConfig {
}; };
struct FDMSupportSpots { struct FDMSupportSpots {
const Vec3f down = -Vec3f::UnitZ();
FDMSupportSpotsConfig m_config; FDMSupportSpotsConfig m_config;
indexed_triangle_set m_mesh; indexed_triangle_set m_mesh;
std::vector<FDMSupportSpotsImpl::Triangle> m_triangles; std::vector<FDMSupportSpotsImpl::Triangle> m_triangles;