1 // Copyright (C) 2019-2019 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include "GeomAlgoAPI_Offset.h"
22 #include <GeomAPI_Pln.h>
24 #include <BRepOffsetAPI_MakeOffsetShape.hxx>
25 #include <BRepOffsetAPI_MakeOffset.hxx>
27 #include <BRepBuilderAPI_MakeWire.hxx>
28 #include <BRepBuilderAPI_MakeFace.hxx>
31 #include <TopoDS_Wire.hxx>
33 GeomAlgoAPI_Offset::GeomAlgoAPI_Offset(const GeomShapePtr& theShape,
34 const double theOffsetValue)
36 build(theShape, theOffsetValue);
39 void GeomAlgoAPI_Offset::build(const GeomShapePtr& theShape, const double theOffsetValue)
41 BRepOffsetAPI_MakeOffsetShape* anOffsetAlgo = new BRepOffsetAPI_MakeOffsetShape;
42 anOffsetAlgo->PerformBySimple(theShape->impl<TopoDS_Shape>(), theOffsetValue);
43 setImpl(anOffsetAlgo);
44 setBuilderType(OCCT_BRepBuilderAPI_MakeShape);
46 if (anOffsetAlgo->IsDone()) {
47 const TopoDS_Shape& aResult = anOffsetAlgo->Shape();
48 std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape());
49 aShape->setImpl(new TopoDS_Shape(aResult));
55 void GeomAlgoAPI_Offset::generated(const GeomShapePtr theOldShape,
56 ListOfShape& theNewShapes)
59 GeomAlgoAPI_MakeShape::generated(theOldShape, theNewShapes);
61 // nothing is generated
65 GeomAlgoAPI_Offset::GeomAlgoAPI_Offset(const GeomPlanePtr& thePlane,
66 const GeomShapePtr& theEdgeOrWire,
67 const double theOffsetValue)
69 // 1. Make wire from edge, if need
71 TopoDS_Shape anEdgeOrWire = theEdgeOrWire->impl<TopoDS_Shape>();
72 if (anEdgeOrWire.ShapeType() == TopAbs_WIRE) {
73 aWire = TopoDS::Wire(anEdgeOrWire);
75 if (anEdgeOrWire.ShapeType() == TopAbs_EDGE) {
76 BRepBuilderAPI_MakeWire aWireBuilder;
77 aWireBuilder.Add(TopoDS::Edge(anEdgeOrWire));
78 if (aWireBuilder.IsDone()) {
79 aWire = aWireBuilder.Wire();
86 // 2. Make invalid face to pass it in Offset algorithm
87 BRepBuilderAPI_MakeFace aFaceBuilder (thePlane->impl<gp_Pln>(), aWire);
88 const TopoDS_Face& aFace = aFaceBuilder.Face();
91 BRepOffsetAPI_MakeOffset* aParal = new BRepOffsetAPI_MakeOffset;
93 setBuilderType(OCCT_BRepBuilderAPI_MakeShape);
95 Standard_Boolean isOpenResult = !aWire.Closed();
96 aParal->Init(aFace, GeomAbs_Arc, isOpenResult);
97 aParal->Perform(theOffsetValue, 0.);
98 if (aParal->IsDone()) {
99 TopoDS_Shape anOffset = aParal->Shape();
100 GeomShapePtr aResult(new GeomAPI_Shape());
101 aResult->setImpl(new TopoDS_Shape(anOffset));