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admesh refactoring: Use Eigen vec3i for indexed triangles.

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bubnikv 2019-06-10 21:14:58 +02:00
parent 313ec7424a
commit af5017c46c
10 changed files with 369 additions and 493 deletions
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20
src/admesh/shared.cpp
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@ -33,7 +33,7 @@
void stl_generate_shared_vertices(stl_file *stl, indexed_triangle_set &its)
{
// 3 indices to vertex per face
its.indices.assign(stl->stats.number_of_facets, v_indices_struct());
its.indices.assign(stl->stats.number_of_facets, stl_triangle_vertex_indices(-1, -1, -1));
// Shared vertices (3D coordinates)
its.vertices.clear();
its.vertices.reserve(stl->stats.number_of_facets / 2);
@ -46,7 +46,7 @@ void stl_generate_shared_vertices(stl_file *stl, indexed_triangle_set &its)
for (uint32_t facet_idx = 0; facet_idx < stl->stats.number_of_facets; ++ facet_idx) {
for (int j = 0; j < 3; ++ j) {
if (its.indices[facet_idx].vertex[j] != -1)
if (its.indices[facet_idx][j] != -1)
// Shared vertex was already assigned.
continue;
// Create a new shared vertex.
@ -84,7 +84,7 @@ void stl_generate_shared_vertices(stl_file *stl, indexed_triangle_set &its)
next_edge = pivot_vertex;
}
}
its.indices[facet_in_fan_idx].vertex[pivot_vertex] = its.vertices.size() - 1;
its.indices[facet_in_fan_idx][pivot_vertex] = its.vertices.size() - 1;
fan_traversal_facet_visited[facet_in_fan_idx] = fan_traversal_stamp;
// next_edge is an index of the starting vertex of the edge, not an index of the opposite vertex to the edge!
@ -139,7 +139,7 @@ bool its_write_off(const indexed_triangle_set &its, const char *file)
for (int i = 0; i < its.vertices.size(); ++ i)
fprintf(fp, "\t%f %f %f\n", its.vertices[i](0), its.vertices[i](1), its.vertices[i](2));
for (uint32_t i = 0; i < its.indices.size(); ++ i)
fprintf(fp, "\t3 %d %d %d\n", its.indices[i].vertex[0], its.indices[i].vertex[1], its.indices[i].vertex[2]);
fprintf(fp, "\t3 %d %d %d\n", its.indices[i][0], its.indices[i][1], its.indices[i][2]);
fclose(fp);
return true;
}
@ -177,8 +177,8 @@ bool its_write_vrml(const indexed_triangle_set &its, const char *file)
fprintf(fp, "\t\t\tcoordIndex [\n");
for (size_t i = 0; i + 1 < its.indices.size(); ++ i)
fprintf(fp, "\t\t\t\t%d, %d, %d, -1,\n", its.indices[i].vertex[0], its.indices[i].vertex[1], its.indices[i].vertex[2]);
fprintf(fp, "\t\t\t\t%d, %d, %d, -1]\n", its.indices[i].vertex[0], its.indices[i].vertex[1], its.indices[i].vertex[2]);
fprintf(fp, "\t\t\t\t%d, %d, %d, -1,\n", its.indices[i][0], its.indices[i][1], its.indices[i][2]);
fprintf(fp, "\t\t\t\t%d, %d, %d, -1]\n", its.indices[i][0], its.indices[i][1], its.indices[i][2]);
fprintf(fp, "\t\t}\n");
fprintf(fp, "\t}\n");
fprintf(fp, "}\n");
@ -198,7 +198,7 @@ bool its_write_obj(const indexed_triangle_set &its, const char *file)
for (size_t i = 0; i < its.vertices.size(); ++ i)
fprintf(fp, "v %f %f %f\n", its.vertices[i](0), its.vertices[i](1), its.vertices[i](2));
for (size_t i = 0; i < its.indices.size(); ++ i)
fprintf(fp, "f %d %d %d\n", its.indices[i].vertex[0]+1, its.indices[i].vertex[1]+1, its.indices[i].vertex[2]+1);
fprintf(fp, "f %d %d %d\n", its.indices[i][0]+1, its.indices[i][1]+1, its.indices[i][2]+1);
fclose(fp);
return true;
}
@ -220,7 +220,7 @@ bool stl_validate(const stl_file *stl, const indexed_triangle_set &its)
// Verify validity of neighborship data.
for (int facet_idx = 0; facet_idx < (int)stl->stats.number_of_facets; ++ facet_idx) {
const stl_neighbors &nbr = stl->neighbors_start[facet_idx];
const int *vertices = (its.indices.empty()) ? nullptr : its.indices[facet_idx].vertex;
const int *vertices = (its.indices.empty()) ? nullptr : its.indices[facet_idx];
for (int nbr_idx = 0; nbr_idx < 3; ++ nbr_idx) {
int nbr_face = stl->neighbors_start[facet_idx].neighbor[nbr_idx];
assert(nbr_face < (int)stl->stats.number_of_facets);
@ -237,10 +237,10 @@ bool stl_validate(const stl_file *stl, const indexed_triangle_set &its)
// Has shared vertices.
if (nbr_vnot < 3) {
// Faces facet_idx and nbr_face share two vertices accross the common edge. Faces are correctly oriented.
assert((its.indices[nbr_face].vertex[(nbr_vnot + 1) % 3] == vertices[(nbr_idx + 1) % 3] && its.indices[nbr_face].vertex[(nbr_vnot + 2) % 3] == vertices[nbr_idx]));
assert((its.indices[nbr_face][(nbr_vnot + 1) % 3] == vertices[(nbr_idx + 1) % 3] && its.indices[nbr_face][(nbr_vnot + 2) % 3] == vertices[nbr_idx]));
} else {
// Faces facet_idx and nbr_face share two vertices accross the common edge. Faces are incorrectly oriented, one of them is flipped.
assert((its.indices[nbr_face].vertex[(nbr_vnot + 2) % 3] == vertices[(nbr_idx + 1) % 3] && its.indices[nbr_face].vertex[(nbr_vnot + 1) % 3] == vertices[nbr_idx]));
assert((its.indices[nbr_face][(nbr_vnot + 2) % 3] == vertices[(nbr_idx + 1) % 3] && its.indices[nbr_face][(nbr_vnot + 1) % 3] == vertices[nbr_idx]));
}
}
}