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Fix OBJ writer from Nef

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This commit is contained in:
Thomas Krijnen
2023-12-11 21:05:58 +01:00
parent e74f160a48
commit 9c82b752b6
1 changed files with 11 additions and 8 deletions
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src/ifcgeom/kernels/cgal/nef_to_halfspace_tree.h
+11 -8
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@@ -1150,9 +1150,9 @@ public:
ofs << "v " << v.cartesian(0) << " " << v.cartesian(1) << " " << v.cartesian(2) << "\n";
}
for (auto& idxs : facets) {
ofs << "i";
ofs << "f";
for (auto& i : idxs) {
ofs << " " << i;
ofs << " " << (i+1);
}
ofs << "\n";
}
@@ -1297,22 +1297,25 @@ bool convert_to_polyhedron(const CGAL::Nef_polyhedron_3<Kernel>& a, CGAL::Polyhe
}
template <typename Kernel>
bool write_to_obj(const CGAL::Nef_polyhedron_3<Kernel>& a, std::ofstream& ofs, size_t volume_index = 0) {
bool write_to_obj(const CGAL::Nef_polyhedron_3<Kernel>& a, std::ostream& ofs, size_t volume_index = 0) {
size_t v = 0;
Polysoup_builder<Kernel> vis;
for (auto it = a.volumes_begin(); it != a.volumes_end(); ++it) {
if (!it->mark()) {
continue;
}
for (auto jt = it->shells_begin(); jt != it->shells_end(); ++jt) {
if (v++ == volume_index) {
Polysoup_builder<Kernel> vis;
if (v++ == volume_index || volume_index == std::numeric_limits<size_t>::max()) {
a.visit_shell_objects(CGAL::Nef_polyhedron_3<Kernel>::SFace_const_handle(jt), vis);
vis.write(ofs);
return true;
if (volume_index != std::numeric_limits<size_t>::max()) {
vis.write(ofs);
return true;
}
}
}
}
return false;
vis.write(ofs);
return volume_index == std::numeric_limits<size_t>::max();
}
#endif