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Don't convert to Nef if there are no voids

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This commit is contained in:
Thomas Krijnen
2019-01-25 15:19:52 +01:00
parent 3afb9169b1
commit 5b066c9f95
1 changed files with 13 additions and 9 deletions
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src/ifcgeom/kernels/cgal/CgalIfcGeomShapesWithStyles.cpp
+12 -8
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@@ -66,10 +66,9 @@ bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcShellBasedSurfaceModel* l,
bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcManifoldSolidBrep* l, ConversionResults& shape) { bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcManifoldSolidBrep* l, ConversionResults& shape) {
cgal_shape_t s; cgal_shape_t s;
const SurfaceStyle* collective_style = get_style(l); const SurfaceStyle* collective_style = get_style(l);
if (convert_shape(l->Outer(),s) ) { const SurfaceStyle* indiv_style = get_style(l->Outer());
CGAL::Nef_polyhedron_3<Kernel_> nef_s = create_nef_polyhedron(s);
const SurfaceStyle* indiv_style = get_style(l->Outer());
if (convert_shape(l->Outer(),s) ) {
IfcSchema::IfcClosedShell::list::ptr voids(new IfcSchema::IfcClosedShell::list); IfcSchema::IfcClosedShell::list::ptr voids(new IfcSchema::IfcClosedShell::list);
if (l->as<IfcSchema::IfcFacetedBrepWithVoids>()) { if (l->as<IfcSchema::IfcFacetedBrepWithVoids>()) {
voids = l->as<IfcSchema::IfcFacetedBrepWithVoids>()->Voids(); voids = l->as<IfcSchema::IfcFacetedBrepWithVoids>()->Voids();
@@ -80,14 +79,19 @@ bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcManifoldSolidBrep* l, Conv
} }
#endif #endif
for (IfcSchema::IfcClosedShell::list::it it = voids->begin(); it != voids->end(); ++it) { if (voids->size()) {
cgal_shape_t s2; CGAL::Nef_polyhedron_3<Kernel_> nef_s = create_nef_polyhedron(s);
if (convert_shape(*it, s2)) {
nef_s -= CGAL::Nef_polyhedron_3<Kernel_>(s2); for (IfcSchema::IfcClosedShell::list::it it = voids->begin(); it != voids->end(); ++it) {
cgal_shape_t s2;
if (convert_shape(*it, s2)) {
nef_s -= CGAL::Nef_polyhedron_3<Kernel_>(s2);
}
} }
s = create_polyhedron(nef_s);
} }
s = create_polyhedron(nef_s);
shape.push_back(ConversionResult(l->data().id(), new CgalShape(s), indiv_style ? indiv_style : collective_style)); shape.push_back(ConversionResult(l->data().id(), new CgalShape(s), indiv_style ? indiv_style : collective_style));
return true; return true;
} }