C++ (Cpp) BRepPrimAPI_MakeCylinder Examples

Example #1

File: GEOMImpl_CylinderDriver.cpp Project: triggerfish1/pythonocc

//=======================================================================
//function : Execute
//purpose  :
//=======================================================================
Standard_Integer GEOMImpl_CylinderDriver::Execute(TFunction_Logbook& log) const
{
  if (Label().IsNull()) return 0;
  Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());

  GEOMImpl_ICylinder aCI (aFunction);
  Standard_Integer aType = aFunction->GetType();

  gp_Pnt aP;
  gp_Vec aV;

  if (aType == CYLINDER_R_H) {
    aP = gp::Origin();
    aV = gp::DZ();
  }
  else if (aType == CYLINDER_PNT_VEC_R_H) {
    Handle(GEOM_Function) aRefPoint  = aCI.GetPoint();
    Handle(GEOM_Function) aRefVector = aCI.GetVector();
    TopoDS_Shape aShapePnt = aRefPoint->GetValue();
    TopoDS_Shape aShapeVec = aRefVector->GetValue();
    if (aShapePnt.IsNull() || aShapeVec.IsNull()) {
      Standard_NullObject::Raise("Cylinder creation aborted: point or vector is not defined");
    }
    if (aShapePnt.ShapeType() != TopAbs_VERTEX ||
        aShapeVec.ShapeType() != TopAbs_EDGE) {
      Standard_TypeMismatch::Raise("Cylinder creation aborted: point or vector shapes has wrong type");
    }

    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_NullObject::Raise("Cylinder creation aborted: vector is not defined");
    }
    aV = gp_Vec(BRep_Tool::Pnt(V1), BRep_Tool::Pnt(V2));
  }
  else {
    return 0;
  }

  if (aCI.GetH() < 0.0) aV.Reverse();
  gp_Ax2 anAxes (aP, aV);

  BRepPrimAPI_MakeCylinder MC (anAxes, aCI.GetR(), Abs(aCI.GetH()));
  MC.Build();
  if (!MC.IsDone()) {
    StdFail_NotDone::Raise("Cylinder can't be computed from the given parameters");
  }

  TopoDS_Shape aShape = MC.Shape();
  if (aShape.IsNull()) return 0;

  aFunction->SetValue(aShape);

  log.SetTouched(Label());

  return 1;
}

Example #2

File: GEOMImpl_ConeDriver.cpp Project: hmeyer/salome-geom

//=======================================================================
//function : Execute
//purpose  :
//=======================================================================
Standard_Integer GEOMImpl_ConeDriver::Execute(TFunction_Logbook& log) const
{
  if (Label().IsNull()) return 0;
  Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());

  GEOMImpl_ICone aCI (aFunction);
  Standard_Integer aType = aFunction->GetType();

  gp_Pnt aP;
  gp_Vec aV;

  Standard_Real aR1 = aCI.GetR1();
  Standard_Real aR2 = aCI.GetR2();

  if (aType == CONE_R1_R2_H) {
    aP = gp::Origin();
    aV = gp::DZ();

  } else if (aType == CONE_PNT_VEC_R1_R2_H) {
    Handle(GEOM_Function) aRefPoint  = aCI.GetPoint();
    Handle(GEOM_Function) aRefVector = aCI.GetVector();
    TopoDS_Shape aShapePnt = aRefPoint->GetValue();
    TopoDS_Shape aShapeVec = aRefVector->GetValue();
    if (aShapePnt.IsNull() || aShapeVec.IsNull()) {
      Standard_NullObject::Raise
        ("Cone creation aborted: point or vector is not defined");
    }
    if (aShapePnt.ShapeType() != TopAbs_VERTEX ||
        aShapeVec.ShapeType() != TopAbs_EDGE) {
      Standard_TypeMismatch::Raise
        ("Cone creation aborted: point or vector shapes has wrong type");
    }

    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_NullObject::Raise
        ("Cylinder creation aborted: vector is not defined");
    }
    aV = gp_Vec(BRep_Tool::Pnt(V1), BRep_Tool::Pnt(V2));

  } else {
    return 0;
  }

  if (aCI.GetH() < 0.0) aV.Reverse();
  gp_Ax2 anAxes (aP, aV);

  double theAngle = aCI.GetAngle();
  if (theAngle == 0.)
	theAngle = PI*2.;

  TopoDS_Shape aShape;
  // Cone does not work if same radius
  if (fabs(aR1 - aR2) <= Precision::Confusion()) {
  
	BRepPrimAPI_MakeCylinder MC (anAxes, (aR1 + aR2)/2.0, Abs(aCI.GetH()), theAngle);

	MC.Build();
    if (!MC.IsDone()) {
      StdFail_NotDone::Raise("Cylinder can't be computed from the given parameters");
    }
    aShape = MC.Shape();
  } else {
    BRepPrimAPI_MakeCone MC (anAxes, aCI.GetR1(), aCI.GetR2(), Abs(aCI.GetH()), theAngle);
    MC.Build();
    if (!MC.IsDone()) {
      StdFail_NotDone::Raise("Cylinder can't be computed from the given parameters");
    }
    aShape = MC.Shape();
  }
  if (aShape.IsNull()) return 0;

  log.SetTouched(Label());

  aFunction->SetValue(aShape);
  return 1;
}