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If an IFC file has an IFCRELASSOCIATESMATERIAL but did not supply an IFCMATERIAL, IfcConvert will crash. This commit prevents the crash, catches the exception and prints an error on the terminal

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Chetan
2023-06-07 16:54:28 +08:00
parent 2c4227384d
commit 86c93ac1e7
2 changed files with 18 additions and 15 deletions
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src/ifcgeom/mapping/mapping.cpp
+18 -10
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@@ -250,17 +250,25 @@ const IfcUtil::IfcBaseEntity* mapping::get_single_material_association(const Ifc
IfcSchema::IfcMaterial* single_material = 0;
IfcSchema::IfcRelAssociatesMaterial::list::ptr associated_materials = product->HasAssociations()->as<IfcSchema::IfcRelAssociatesMaterial>();
if (associated_materials->size() == 1) {
IfcSchema::IfcMaterialSelect* associated_material = (*associated_materials->begin())->RelatingMaterial();
single_material = associated_material->as<IfcSchema::IfcMaterial>();
IfcSchema::IfcMaterialSelect* associated_material = nullptr;
// NB: Single-layer layersets are also considered, regardless of --enable-layerset-slicing, this
// in accordance with other viewers.
if (!single_material && associated_material->as<IfcSchema::IfcMaterialLayerSetUsage>()) {
IfcSchema::IfcMaterialLayerSet* layerset = associated_material->as<IfcSchema::IfcMaterialLayerSetUsage>()->ForLayerSet();
if (layerset->MaterialLayers()->size() == 1) {
IfcSchema::IfcMaterialLayer* layer = (*layerset->MaterialLayers()->begin());
if (layer->Material()) {
single_material = layer->Material();
try {
associated_material = (*associated_materials->begin())->RelatingMaterial();
} catch(IfcParse::IfcException& e) {
Logger::Error(e.what());
}
if (associated_material) {
single_material = associated_material->as<IfcSchema::IfcMaterial>();
// NB: Single-layer layersets are also considered, regardless of --enable-layerset-slicing, this
// in accordance with other viewers.
if (!single_material && associated_material->as<IfcSchema::IfcMaterialLayerSetUsage>()) {
IfcSchema::IfcMaterialLayerSet* layerset = associated_material->as<IfcSchema::IfcMaterialLayerSetUsage>()->ForLayerSet();
if (settings_.get<settings::LayersetFirst>().value ? layerset->MaterialLayers()->size() >= 1 : layerset->MaterialLayers()->size() == 1) {
IfcSchema::IfcMaterialLayer* layer = (*layerset->MaterialLayers()->begin());
if (layer->Material()) {
single_material = layer->Material();
}
}
}
}