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IfcOpenHouse: Don't use a single opening element to create multiple openings

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This commit is contained in:
Thomas Krijnen
2013-12-13 10:41:22 +00:00
parent 06958a02a4
commit 71b173a494
1 changed files with 6 additions and 1 deletions
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src/examples/IfcOpenHouse.cpp
+6 -1
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@@ -169,7 +169,12 @@ int main(int argc, char** argv) {
// The west wall is assigned an opening element we created for the south wall, opening elements are
// not shared accross building elements, even if they share the same representation. Hence, the east
// wall will not feature this opening.
file.AddEntity(new Ifc2x3::IfcRelVoidsElement(guid(), file.getSingle<Ifc2x3::IfcOwnerHistory>(), null, null, west_wall, west_opening));
// NB: an Opening Element can only be used to create a single void within a single Element, as per:
// http://www.buildingsmart-tech.org/ifc/IFC2x3/TC1/html/ifcproductextension/lexical/ifcfeatureelementsubtraction.htm
Ifc2x3::IfcOpeningElement* west_opening_copy = new Ifc2x3::IfcOpeningElement(guid(), file.getSingle<Ifc2x3::IfcOwnerHistory>(),
null, null, null, west_opening->ObjectPlacement(), west_opening->Representation(), null);
file.AddEntity(west_opening_copy);
file.AddEntity(new Ifc2x3::IfcRelVoidsElement(guid(), file.getSingle<Ifc2x3::IfcOwnerHistory>(), null, null, west_wall, west_opening_copy));
// Up until now we have only used simple extrusions for the creation of the geometry. For the
// ground mesh of the IfcSite we will use a Nurbs surface created in Open Cascade. The surface