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

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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/IfcGeomFunctions.cpp
+12 -5
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@@ -88,7 +88,9 @@
bool IfcGeom::create_solid_from_compound(const TopoDS_Shape& compound, TopoDS_Shape& shape) {
BRepOffsetAPI_Sewing builder;
builder.SetTolerance(0.01);
builder.SetTolerance(POINT_EQUALITY_TOLERANCE);
builder.SetMaxTolerance(POINT_EQUALITY_TOLERANCE);
builder.SetMinTolerance(POINT_EQUALITY_TOLERANCE);
TopExp_Explorer exp(compound,TopAbs_FACE);
if ( ! exp.More() ) return false;
for ( ; exp.More(); exp.Next() ) {
@@ -99,7 +101,7 @@ bool IfcGeom::create_solid_from_compound(const TopoDS_Shape& compound, TopoDS_Sh
shape = builder.SewedShape();
try {
ShapeFix_Solid sf_solid;
sf_solid.LimitTolerance(0.01);
sf_solid.LimitTolerance(POINT_EQUALITY_TOLERANCE);
shape = sf_solid.SolidFromShell(TopoDS::Shell(shape));
} catch(...) {}
return true;
@@ -259,9 +261,14 @@ bool IfcGeom::profile_helper(int numVerts, double* verts, int numFillets, int* f
return true;
}
double IfcGeom::shape_volume(const TopoDS_Shape& s) {
GProp_GProps System;
BRepGProp::VolumeProperties(s, System);
return (double) System.Mass();
GProp_GProps prop;
BRepGProp::VolumeProperties(s, prop);
return prop.Mass();
}
double IfcGeom::face_area(const TopoDS_Face& f) {
GProp_GProps prop;
BRepGProp::SurfaceProperties(f,prop);
return prop.Mass();
}
bool IfcGeom::is_convex(const TopoDS_Wire& wire) {
for ( TopExp_Explorer exp1(wire,TopAbs_VERTEX); exp1.More(); exp1.Next() ) {