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#3889 Apply handling of openings on IfcFeatureElementSubtraction generically

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This commit is contained in:
Thomas Krijnen
2023-10-16 11:02:30 +02:00
parent 68f5df73b9
commit fb9cf75412
1 changed files with 48 additions and 49 deletions
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src/ifcgeom/IfcGeom.cpp
+48 -49
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@@ -249,65 +249,64 @@ bool IfcGeom::Kernel::convert_openings(const IfcSchema::IfcProduct* entity, cons
for (IfcSchema::IfcRelVoidsElement::list::it it = openings->begin(); it != openings->end(); ++it) { for (IfcSchema::IfcRelVoidsElement::list::it it = openings->begin(); it != openings->end(); ++it) {
IfcSchema::IfcRelVoidsElement* v = *it; IfcSchema::IfcRelVoidsElement* v = *it;
IfcSchema::IfcFeatureElementSubtraction* fes = v->RelatedOpeningElement(); IfcSchema::IfcFeatureElementSubtraction* fes = v->RelatedOpeningElement();
if (fes->declaration().is(IfcSchema::IfcOpeningElement::Class())) { if (!fes->Representation()) {
if (!fes->Representation()) continue; continue;
}
/* /*
// Not yet implemented and tested, process opening placement up to parent wall // Not yet implemented and tested, process opening placement up to parent wall
// placement so that the matrix inverse can be eliminated. // placement so that the matrix inverse can be eliminated.
// @todo property check and handle the decomposition into parts (where element // @todo property check and handle the decomposition into parts (where element
// carying geom and opening are in different branches). // carying geom and opening are in different branches).
// @todo properly check whether opening correctly references wall placement // @todo properly check whether opening correctly references wall placement
// and fallback to matrix inverse when not the case. // and fallback to matrix inverse when not the case.
auto relative = entity; auto relative = entity;
{ {
auto ds = relative->Decomposes(); auto ds = relative->Decomposes();
if (ds->size() == 1) { if (ds->size() == 1) {
relative = (*ds->begin())->RelatingObject()->as<IfcSchema::IfcProduct>(); relative = (*ds->begin())->RelatingObject()->as<IfcSchema::IfcProduct>();
}
} }
set_conversion_placement_rel_to_instance(relative); }
*/ set_conversion_placement_rel_to_instance(relative);
*/
// Convert the IfcRepresentation of the IfcOpeningElement // Convert the IfcRepresentation of the IfcOpeningElement
gp_Trsf opening_trsf; gp_Trsf opening_trsf;
if (fes->ObjectPlacement()) { if (fes->ObjectPlacement()) {
try { try {
convert(fes->ObjectPlacement(), opening_trsf); convert(fes->ObjectPlacement(), opening_trsf);
} catch (const std::exception& e) { } catch (const std::exception& e) {
Logger::Error(e); Logger::Error(e);
} catch (...) { } catch (...) {
Logger::Error("Failed to construct placement"); Logger::Error("Failed to construct placement");
}
} }
}
// set_conversion_placement_rel_to_instance(nullptr); // set_conversion_placement_rel_to_instance(nullptr);
// Move the opening into the coordinate system of the IfcProduct // Move the opening into the coordinate system of the IfcProduct
opening_trsf.PreMultiply(entity_trsf.Inverted()); opening_trsf.PreMultiply(entity_trsf.Inverted());
IfcSchema::IfcProductRepresentation* prodrep = fes->Representation(); IfcSchema::IfcProductRepresentation* prodrep = fes->Representation();
IfcSchema::IfcRepresentation::list::ptr reps = prodrep->Representations(); IfcSchema::IfcRepresentation::list::ptr reps = prodrep->Representations();
IfcGeom::IfcRepresentationShapeItems opening_shapes; IfcGeom::IfcRepresentationShapeItems opening_shapes;
for (IfcSchema::IfcRepresentation::list::it it2 = reps->begin(); it2 != reps->end(); ++it2) { for (IfcSchema::IfcRepresentation::list::it it2 = reps->begin(); it2 != reps->end(); ++it2) {
if (IfcParse::traverse((*it2))->as<IfcSchema::IfcBoundingBox>()->size()) { if (IfcParse::traverse((*it2))->as<IfcSchema::IfcBoundingBox>()->size()) {
continue; continue;
}
convert_shapes(*it2, opening_shapes);
} }
convert_shapes(*it2, opening_shapes);
}
for (unsigned int i = 0; i < opening_shapes.size(); ++i) { for (unsigned int i = 0; i < opening_shapes.size(); ++i) {
TopoDS_Shape opening_shape_solid; TopoDS_Shape opening_shape_solid;
const TopoDS_Shape& opening_shape_unlocated = util::ensure_fit_for_subtraction(opening_shapes[i].Shape(), opening_shape_solid, getValue(GV_PRECISION)); const TopoDS_Shape& opening_shape_unlocated = util::ensure_fit_for_subtraction(opening_shapes[i].Shape(), opening_shape_solid, getValue(GV_PRECISION));
gp_GTrsf gtrsf = opening_shapes[i].Placement();
gtrsf.PreMultiply(opening_trsf);
TopoDS_Shape opening_shape = util::apply_transformation(opening_shape_unlocated, gtrsf);
opening_vector.push_back(std::make_pair(util::min_edge_length(opening_shape), opening_shape));
}
gp_GTrsf gtrsf = opening_shapes[i].Placement();
gtrsf.PreMultiply(opening_trsf);
TopoDS_Shape opening_shape = util::apply_transformation(opening_shape_unlocated, gtrsf);
opening_vector.push_back(std::make_pair(util::min_edge_length(opening_shape), opening_shape));
} }
} }
@@ -515,7 +514,7 @@ double IfcGeom::Kernel::getValue(GeomValue var) const {
IfcSchema::IfcRelVoidsElement::list::ptr IfcGeom::Kernel::find_openings(IfcSchema::IfcProduct* product) { IfcSchema::IfcRelVoidsElement::list::ptr IfcGeom::Kernel::find_openings(IfcSchema::IfcProduct* product) {
std::vector<IfcSchema::IfcRelVoidsElement*> rs; std::vector<IfcSchema::IfcRelVoidsElement*> rs;
if ( product->declaration().is(IfcSchema::IfcElement::Class()) && !product->declaration().is(IfcSchema::IfcOpeningElement::Class()) ) { if ( product->declaration().is(IfcSchema::IfcElement::Class()) && !product->declaration().is(IfcSchema::IfcFeatureElementSubtraction::Class()) ) {
IfcSchema::IfcElement* element = (IfcSchema::IfcElement*)product; IfcSchema::IfcElement* element = (IfcSchema::IfcElement*)product;
auto rels = element->HasOpenings(); auto rels = element->HasOpenings();
rs.insert(rs.end(), rels->begin(), rels->end()); rs.insert(rs.end(), rels->begin(), rels->end());
@@ -527,7 +526,7 @@ IfcSchema::IfcRelVoidsElement::list::ptr IfcGeom::Kernel::find_openings(IfcSchem
auto decomposes = obdef->Decomposes(); auto decomposes = obdef->Decomposes();
if (decomposes->size() != 1) break; if (decomposes->size() != 1) break;
IfcSchema::IfcObjectDefinition* rel_obdef = (*decomposes->begin())->RelatingObject(); IfcSchema::IfcObjectDefinition* rel_obdef = (*decomposes->begin())->RelatingObject();
if ( rel_obdef->declaration().is(IfcSchema::IfcElement::Class()) && !rel_obdef->declaration().is(IfcSchema::IfcOpeningElement::Class()) ) { if ( rel_obdef->declaration().is(IfcSchema::IfcElement::Class()) && !rel_obdef->declaration().is(IfcSchema::IfcFeatureElementSubtraction::Class()) ) {
IfcSchema::IfcElement* element = (IfcSchema::IfcElement*)rel_obdef; IfcSchema::IfcElement* element = (IfcSchema::IfcElement*)rel_obdef;
auto rels = element->HasOpenings(); auto rels = element->HasOpenings();
rs.insert(rs.end(), rels->begin(), rels->end()); rs.insert(rs.end(), rels->begin(), rels->end());