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Getting around signed_distance in pinhead_mesh_intersect

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tamasmeszaros 2019-01-30 17:35:39 +01:00
parent 4e82e32a27
commit 3f10b2f7f8
3 changed files with 72 additions and 18 deletions
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32
src/libslic3r/SLA/SLASupportTree.hpp
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@ -125,8 +125,38 @@ public:
inline const Eigen::MatrixXd& V() const { return m_V; }
inline const Eigen::MatrixXi& F() const { return m_F; }
// Result of a raycast
class hit_result {
double m_t = std::numeric_limits<double>::infinity();
int m_face_id = -1;
const EigenMesh3D& m_mesh;
Vec3d m_dir;
inline hit_result(const EigenMesh3D& em): m_mesh(em) {}
friend class EigenMesh3D;
public:
inline double distance() const { return m_t; }
inline int face() const { return m_face_id; }
inline Vec3d normal() const {
if(m_face_id < 0) return {};
auto trindex = m_mesh.m_F.row(m_face_id);
const Vec3d& p1 = m_mesh.V().row(trindex(0));
const Vec3d& p2 = m_mesh.V().row(trindex(1));
const Vec3d& p3 = m_mesh.V().row(trindex(2));
Eigen::Vector3d U = p2 - p1;
Eigen::Vector3d V = p3 - p1;
return U.cross(V).normalized();
}
inline bool is_inside() {
return m_face_id >= 0 && normal().dot(m_dir) > 0;
}
};
// Casting a ray on the mesh, returns the distance where the hit occures.
double query_ray_hit(const Vec3d &s, const Vec3d &dir) const;
hit_result query_ray_hit(const Vec3d &s, const Vec3d &dir) const;
class si_result {
double m_value;