void MapCopier::copy(
MapBuilder& builder, MapComponent* component,
MapVertexAttribute<int>& vertex_id, MapTexVertexAttribute<int>& tex_vertex_id,
int& cur_vertex_id, int& cur_tex_vertex_id
)
{
bind_attribute_copiers(builder.target(), component->map()) ;
// Step 1 : clear vertex and tex vertex ids
FOR_EACH_VERTEX(MapComponent, component, it) {
vertex_id[it] = -1 ;
}
FOR_EACH_HALFEDGE(MapComponent, component, it) {
tex_vertex_id[it->tex_vertex()] = -1 ;
}
// Step 2: enumerate vertices
FOR_EACH_VERTEX(MapComponent, component, it) {
vertex_id[it] = cur_vertex_id ;
builder.add_vertex(it->point()) ;
copy_vertex_attributes(builder.current_vertex(), it) ;
cur_vertex_id++ ;
}
std::unique_ptr<draco::PointCloud> to_draco_point_cloud(Mesh::Ptr mesh,
bool with_attributes=true) {
std::unique_ptr<draco::PointCloud> draco_mesh(new draco::PointCloud());
assert(mesh->get_num_faces() == 0);
copy_vertices(mesh, draco_mesh);
if (with_attributes) {
copy_vertex_attributes(mesh, draco_mesh);
}
return draco_mesh;
}
std::unique_ptr<draco::Mesh> to_draco_mesh(Mesh::Ptr mesh,
bool with_attributes=true) {
std::unique_ptr<draco::Mesh> draco_mesh(new draco::Mesh());
const size_t vertex_per_face = mesh->get_vertex_per_face();
if (vertex_per_face != 3) {
throw NotImplementedError(
"Draco encoding only supports triangle mesh.");
}
copy_vertices(mesh, draco_mesh);
copy_faces(mesh, draco_mesh);
if (with_attributes) {
copy_vertex_attributes(mesh, draco_mesh);
//copy_face_attributes(mesh, draco_mesh);
}
return draco_mesh;
}