95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
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#ifndef slic3r_MeshUtils_hpp_
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#define slic3r_MeshUtils_hpp_
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#include "libslic3r/Point.hpp"
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#include "libslic3r/Geometry.hpp"
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#include <cfloat>
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namespace Slic3r {
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class TriangleMesh;
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class TriangleMeshSlicer;
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namespace GUI {
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class ClippingPlane
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{
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double m_data[4];
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public:
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ClippingPlane()
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{
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m_data[0] = 0.0;
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m_data[1] = 0.0;
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m_data[2] = 1.0;
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m_data[3] = 0.0;
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}
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ClippingPlane(const Vec3d& direction, double offset)
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{
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Vec3d norm_dir = direction.normalized();
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m_data[0] = norm_dir(0);
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m_data[1] = norm_dir(1);
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m_data[2] = norm_dir(2);
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m_data[3] = offset;
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}
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bool operator==(const ClippingPlane& cp) const {
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return m_data[0]==cp.m_data[0] && m_data[1]==cp.m_data[1] && m_data[2]==cp.m_data[2] && m_data[3]==cp.m_data[3];
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}
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bool operator!=(const ClippingPlane& cp) const { return ! (*this==cp); }
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double distance(const Vec3d& pt) const {
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assert(is_approx(get_normal().norm(), 1.));
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return (-get_normal().dot(pt) + m_data[3]);
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}
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void set_normal(const Vec3d& normal) { for (size_t i=0; i<3; ++i) m_data[i] = normal(i); }
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void set_offset(double offset) { m_data[3] = offset; }
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Vec3d get_normal() const { return Vec3d(m_data[0], m_data[1], m_data[2]); }
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bool is_active() const { return m_data[3] != DBL_MAX; }
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static ClippingPlane ClipsNothing() { return ClippingPlane(Vec3d(0., 0., 1.), DBL_MAX); }
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const double* get_data() const { return m_data; }
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// Serialization through cereal library
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template <class Archive>
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void serialize( Archive & ar )
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{
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ar( m_data[0], m_data[1], m_data[2], m_data[3] );
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}
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};
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class MeshClipper {
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public:
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void set_plane(const ClippingPlane& plane);
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void set_mesh(const TriangleMesh& mesh);
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void set_transformation(const Geometry::Transformation& trafo);
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const std::vector<Vec3f>& get_triangles();
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private:
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void recalculate_triangles();
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Geometry::Transformation m_trafo;
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const TriangleMesh* m_mesh = nullptr;
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ClippingPlane m_plane;
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std::vector<Vec2f> m_triangles2d;
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std::vector<Vec3f> m_triangles3d;
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bool m_triangles_valid = false;
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std::unique_ptr<TriangleMeshSlicer> m_tms;
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};
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} // namespace GUI
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} // namespace Slic3r
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#endif // slic3r_MeshUtils_hpp_
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