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#ifndef SLA_CONTOUR3D_HPP
#define SLA_CONTOUR3D_HPP
#include <libslic3r/TriangleMesh.hpp>
namespace Slic3r {
// Used for quads (TODO: remove this, and convert quads to triangles in OpenVDBUtils)
using Vec4i = Eigen::Matrix<int, 4, 1, Eigen::DontAlign>;
namespace sla {
class IndexedMesh;
/// Dumb vertex mesh consisting of triangles (or) quads. Capable of merging with
/// other meshes of this type and converting to and from other mesh formats.
struct Contour3D {
std::vector<Vec3d> points;
std::vector<Vec3i> faces3;
std::vector<Vec4i> faces4;
Contour3D() = default;
Contour3D(const TriangleMesh &trmesh);
Contour3D(TriangleMesh &&trmesh);
Contour3D(const IndexedMesh &emesh);
Contour3D& merge(const Contour3D& ctr);
Contour3D& merge(const Pointf3s& triangles);
// Write the index triangle structure to OBJ file for debugging purposes.
void to_obj(std::ostream& stream);
void from_obj(std::istream &stream);
inline bool empty() const
{
return points.empty() || (faces4.empty() && faces3.empty());
}
};
/// Mesh from an existing contour.
TriangleMesh to_triangle_mesh(const Contour3D& ctour);
/// Mesh from an evaporating 3D contour
TriangleMesh to_triangle_mesh(Contour3D&& ctour);
}} // namespace Slic3r::sla
#endif // CONTOUR3D_HPP
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