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Only add faces to shells that have a surface area larger than some threshold value

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This commit is contained in:
Thomas Krijnen
2012-04-07 14:34:44 +00:00
parent aa7a290ea1
commit b2b51e343f
4 changed files with 45 additions and 30 deletions
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src/ifcgeom/IfcGeomFaces.cpp
+23 -20
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@@ -73,8 +73,6 @@
#include <ShapeFix_ShapeTolerance.hxx>
#include <ShapeFix_Solid.hxx>
#include <BRepFilletAPI_MakeFillet2d.hxx>
#include <TopLoc_Location.hxx>
#include "../ifcgeom/IfcGeom.h"
@@ -97,28 +95,33 @@ bool IfcGeom::convert(const Ifc2x3::IfcFace::ptr l, TopoDS_Face& face) {
if ( er != BRepBuilderAPI_FaceDone ) return false;
if ( bounds->Size() == 1 ) {
face = mf.Face();
return true;
}
for( ++it; it != bounds->end(); ++ it) {
Ifc2x3::IfcLoop::ptr loop = (*it)->Bound();
TopoDS_Wire wire;
if ( ! IfcGeom::convert_wire(loop,wire) ) return false;
mf.Add(wire);
}
if ( mf.IsDone() ) {
ShapeFix_Shape sfs(mf.Face());
sfs.Perform();
TopoDS_Shape sfs_shape = sfs.Shape();
bool is_face = sfs_shape.ShapeType() == TopAbs_FACE;
if ( is_face ) {
face = TopoDS::Face(sfs_shape);
return true;
} else {
for( ++it; it != bounds->end(); ++ it) {
Ifc2x3::IfcLoop::ptr loop = (*it)->Bound();
TopoDS_Wire wire;
if ( ! IfcGeom::convert_wire(loop,wire) ) return false;
mf.Add(wire);
}
if ( mf.IsDone() ) {
ShapeFix_Shape sfs(mf.Face());
sfs.Perform();
TopoDS_Shape sfs_shape = sfs.Shape();
bool is_face = sfs_shape.ShapeType() == TopAbs_FACE;
if ( is_face ) {
face = TopoDS::Face(sfs_shape);
} else {
return false;
}
} else {
return false;
}
} else {
return false;
}
// It might be a good idea to globally discard faces
// smaller than a certain treshold value. But for now
// only when processing IfcConnectedFacesets the small
// faces are skipped.
// return face_area(face) > 0.0001;
return true;
}
bool IfcGeom::convert(const Ifc2x3::IfcArbitraryClosedProfileDef::ptr l, TopoDS_Face& face) {
TopoDS_Wire wire;