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Fix Gizmo preview with hollowed mesh

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This commit is contained in:
tamasmeszaros 2021-02-26 15:37:48 +01:00
parent dd202af8cd
commit 06bf02df69
5 changed files with 194 additions and 153 deletions
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19
src/slic3r/GUI/MeshUtils.cpp
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@ -2,6 +2,7 @@
#include "libslic3r/Tesselate.hpp"
#include "libslic3r/TriangleMesh.hpp"
#include "libslic3r/ClipperUtils.hpp"
#include "slic3r/GUI/Camera.hpp"
@ -31,6 +32,15 @@ void MeshClipper::set_mesh(const TriangleMesh& mesh)
}
}
void MeshClipper::set_negative_mesh(const TriangleMesh& mesh)
{
if (m_negative_mesh != &mesh) {
m_negative_mesh = &mesh;
m_triangles_valid = false;
m_triangles2d.resize(0);
}
}
void MeshClipper::set_transformation(const Geometry::Transformation& trafo)
@ -74,6 +84,15 @@ void MeshClipper::recalculate_triangles()
std::vector<ExPolygons> list_of_expolys;
m_tms->set_up_direction(up.cast<float>());
m_tms->slice(std::vector<float>{height_mesh}, SlicingMode::Regular, 0.f, &list_of_expolys, [](){});
if (m_negative_mesh && !m_negative_mesh->empty()) {
TriangleMeshSlicer negative_tms{m_negative_mesh};
negative_tms.set_up_direction(up.cast<float>());
std::vector<ExPolygons> neg_polys;
negative_tms.slice(std::vector<float>{height_mesh}, SlicingMode::Regular, 0.f, &neg_polys, [](){});
list_of_expolys.front() = diff_ex(list_of_expolys.front(), neg_polys.front());
}
m_triangles2d = triangulate_expolygons_2f(list_of_expolys[0], m_trafo.get_matrix().matrix().determinant() < 0.);
// Rotate the cut into world coords: