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37 lines
1.5 KiB
37 lines
1.5 KiB
2 years ago
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#include "utility.h"
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namespace da::sha {
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void ConvertMatmesh3ToGeoMesh(const MatMesh3 &mesh, GEO::Mesh &geo_mesh) {
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geo_mesh.clear();
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geo_mesh.vertices.set_dimension(3);
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const size_t num_vertices = mesh.NumVertices();
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const size_t num_faces = mesh.NumFaces();
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for (index_t vertex_idx = 0; vertex_idx < num_vertices; vertex_idx++) {
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Eigen::RowVector3d coords = mesh.mat_coordinates.row(vertex_idx);
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geo_mesh.vertices.create_vertex(coords.data());
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}
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for (index_t face_idx = 0; face_idx < num_faces; ++face_idx) {
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geo_mesh.facets.create_triangle(mesh.mat_faces(face_idx, 0), mesh.mat_faces(face_idx, 1),
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mesh.mat_faces(face_idx, 2));
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}
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geo_mesh.facets.connect();
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}
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void ConvertGeoMeshToMatmesh3(const GEO::Mesh &geo_mesh, MatMesh3 &mesh) {
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const size_t num_vertices = geo_mesh.vertices.nb();
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const size_t num_faces = geo_mesh.facets.nb();
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mesh.mat_coordinates.resize(num_vertices, 3);
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mesh.mat_faces.resize(num_faces, 3);
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for (index_t vertex_idx = 0; vertex_idx < num_vertices; vertex_idx++) {
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mesh.mat_coordinates.row(vertex_idx) << geo_mesh.vertices.point(vertex_idx).x,
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geo_mesh.vertices.point(vertex_idx).y, geo_mesh.vertices.point(vertex_idx).z;
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}
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for (index_t face_idx = 0; face_idx < num_faces; ++face_idx) {
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mesh.mat_faces.row(face_idx) << geo_mesh.facets.vertex(face_idx, 0),
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geo_mesh.facets.vertex(face_idx, 1), geo_mesh.facets.vertex(face_idx, 2);
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}
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}
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} // namespace da::sha
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