void occQt::makeTorus()
{
gp_Ax2 anAxis;
anAxis.SetLocation(gp_Pnt(0.0, 40.0, 0.0));
TopoDS_Shape aTopoTorus = BRepPrimAPI_MakeTorus(anAxis, 3.0, 1.0);
Handle_AIS_Shape anAisTorus = new AIS_Shape(aTopoTorus);
anAisTorus->SetColor(Quantity_NOC_YELLOW);
anAxis.SetLocation(gp_Pnt(8.0, 40.0, 0.0));
TopoDS_Shape aTopoElbow = BRepPrimAPI_MakeTorus(anAxis, 3.0, 1.0, M_PI_2);
Handle_AIS_Shape anAisElbow = new AIS_Shape(aTopoElbow);
anAisElbow->SetColor(Quantity_NOC_THISTLE);
mContext->Display(anAisTorus);
mContext->Display(anAisElbow);
}
//=======================================================================
//function : Execute
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_TorusDriver::Execute(TFunction_Logbook& log) const
{
if (Label().IsNull()) return 0;
Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
GEOMImpl_ITorus aCI (aFunction);
Standard_Integer aType = aFunction->GetType();
TopoDS_Shape aShape;
if (aType == TORUS_RR) {
aShape = BRepPrimAPI_MakeTorus(aCI.GetRMajor(), aCI.GetRMinor()).Shape();
} else if (aType == TORUS_PNT_VEC_RR) {
Handle(GEOM_Function) aRefPoint = aCI.GetCenter();
Handle(GEOM_Function) aRefVector = aCI.GetVector();
TopoDS_Shape aShapePnt = aRefPoint->GetValue();
TopoDS_Shape aShapeVec = aRefVector->GetValue();
if (aShapePnt.ShapeType() != TopAbs_VERTEX) {
Standard_TypeMismatch::Raise("Torus Center must be a vertex");
}
if (aShapeVec.ShapeType() != TopAbs_EDGE) {
Standard_TypeMismatch::Raise("Torus Axis must be an edge");
}
gp_Pnt aP = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt));
TopoDS_Edge anE = TopoDS::Edge(aShapeVec);
TopoDS_Vertex V1, V2;
TopExp::Vertices(anE, V1, V2, Standard_True);
if (V1.IsNull() || V2.IsNull()) {
Standard_ConstructionError::Raise("Bad edge for the Torus Axis given");
}
gp_Vec aV (BRep_Tool::Pnt(V1), BRep_Tool::Pnt(V2));
if (aV.Magnitude() < Precision::Confusion()) {
Standard_ConstructionError::Raise
("End vertices of edge, defining the Torus Axis, are too close");
}
gp_Ax2 anAxes (aP, aV);
BRepPrimAPI_MakeTorus MT (anAxes, aCI.GetRMajor(), aCI.GetRMinor());
if (!MT.IsDone()) MT.Build();
if (!MT.IsDone()) StdFail_NotDone::Raise("Torus construction algorithm has failed");
aShape = MT.Shape();
} else {
}
if (aShape.IsNull()) return 0;
aFunction->SetValue(aShape);
log.SetTouched(Label());
return 1;
}
