I am using Open Cascade for an open source IFC geometry converter. IFC is a format very similar to STEP so with the use of Open Cascade most of the geometry interpretation is rather easy.
However, there is one type of geometry I can't seem to implement elegantly: a halfspace solid bounded by a polygonal boundary: http://buildingsmart-tech.org/ifc/IFC2x3/TC1/html/ifcgeometricmodelresou...
There does not seem to be a direct counterpart in the Open Cascade classes? The way I implemented it now is by simply extruding the boundary, but this leads to all sorts of problems.
Does anybody have an idea how to construct this polygonal bounded halfspace?
Thanks in advance.