bool IfcGeom::Kernel::convert(const IfcSchema::IfcCircleProfileDef* l, TopoDS_Shape& face) {
const double r = l->Radius() * getValue(GV_LENGTH_UNIT);
if ( r == 0.0f ) {
Logger::Message(Logger::LOG_NOTICE,"Skipping zero sized profile:",l->entity);
return false;
}
gp_Trsf2d trsf2d;
bool has_position = true;
#ifdef USE_IFC4
has_position = l->hasPosition();
#endif
if (has_position) {
IfcGeom::Kernel::convert(l->Position(), trsf2d);
}
gp_Ax2 ax = gp_Ax2().Transformed(trsf2d);
Handle(Geom_Circle) circle = new Geom_Circle(ax, r);
TopoDS_Edge edge = BRepBuilderAPI_MakeEdge(circle);
BRepBuilderAPI_MakeWire w;
w.Add(edge);
TopoDS_Face f;
bool success = convert_wire_to_face(w, f);
if (success) face = f;
return success;
}
bool IfcGeom::Kernel::convert(const IfcSchema::IfcEllipseProfileDef* l, TopoDS_Shape& face) {
double rx = l->SemiAxis1() * getValue(GV_LENGTH_UNIT);
double ry = l->SemiAxis2() * getValue(GV_LENGTH_UNIT);
if ( rx < ALMOST_ZERO || ry < ALMOST_ZERO ) {
Logger::Message(Logger::LOG_NOTICE,"Skipping zero sized profile:",l->entity);
return false;
}
const bool rotated = ry > rx;
gp_Trsf2d trsf;
convert(l->Position(),trsf);
gp_Ax2 ax = gp_Ax2();
if (rotated) {
ax.Rotate(ax.Axis(), M_PI / 2.);
std::swap(rx, ry);
}
ax.Transform(trsf);
BRepBuilderAPI_MakeWire w;
Handle(Geom_Ellipse) ellipse = new Geom_Ellipse(ax, rx, ry);
TopoDS_Edge edge = BRepBuilderAPI_MakeEdge(ellipse);
w.Add(edge);
TopoDS_Face f;
bool success = convert_wire_to_face(w, f);
if (success) face = f;
return success;
}
bool IfcGeom::Kernel::convert(const IfcSchema::IfcArbitraryClosedProfileDef* l, TopoDS_Shape& face) {
TopoDS_Wire wire;
if ( ! convert_wire(l->OuterCurve(),wire) ) return false;
TopoDS_Face f;
bool success = convert_wire_to_face(wire, f);
if (success) face = f;
return success;
}