src/GeomAlgoAPI/GeomAlgoAPI_FaceBuilder.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        GeomAlgoAPI_FaceBuilder.cpp
   4 // Created:     23 Apr 2014
   5 // Author:      Mikhail PONIKAROV
   6
   7 #include <GeomAlgoAPI_FaceBuilder.h>
   8 #include <gp_Pln.hxx>
   9 #include <BRepBuilderAPI_MakeFace.hxx>
  10 #include <TopoDS_Face.hxx>
  11 #include <TopoDS.hxx>
  12 #include <BRep_Tool.hxx>
  13 #include <Geom_Plane.hxx>
  14
  15
  16 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_FaceBuilder::square(
  17     std::shared_ptr<GeomAPI_Pnt> theCenter, std::shared_ptr<GeomAPI_Dir> theNormal,
  18     const double theSize)
  19 {
  20   const gp_Pnt& aCenter = theCenter->impl<gp_Pnt>();
  21   const gp_Dir& aDir = theNormal->impl<gp_Dir>();
  22   gp_Pln aPlane(aCenter, aDir);
  23   // half of the size in each direction from the center
  24   BRepBuilderAPI_MakeFace aFaceBuilder(aPlane, -theSize / 2., theSize / 2., -theSize / 2.,
  25                                        theSize / 2.);
  26   std::shared_ptr<GeomAPI_Shape> aRes(new GeomAPI_Shape);
  27   aRes->setImpl(new TopoDS_Shape(aFaceBuilder.Face()));
  28   return aRes;
  29 }
  30
  31 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_FaceBuilder::square(
  32     std::shared_ptr<GeomAPI_Pln> thePlane,
  33     const double theSize)
  34 {
  35   // half of the size in each direction from the center
  36   BRepBuilderAPI_MakeFace aFaceBuilder(thePlane->impl<gp_Pln>(),
  37                                        -theSize / 2., theSize / 2.,
  38                                        -theSize / 2., theSize / 2.);
  39   std::shared_ptr<GeomAPI_Shape> aRes(new GeomAPI_Shape);
  40   aRes->setImpl(new TopoDS_Shape(aFaceBuilder.Face()));
  41   return aRes;
  42 }
  43
  44 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_FaceBuilder::plane(
  45     std::shared_ptr<GeomAPI_Shape> theFace)
  46 {
  47   std::shared_ptr<GeomAPI_Pln> aResult;
  48   if (!theFace)
  49     return aResult;  // bad shape
  50   TopoDS_Shape aShape = theFace->impl<TopoDS_Shape>();
  51   if (aShape.IsNull())
  52     return aResult;  // null shape
  53   if (aShape.ShapeType() != TopAbs_FACE)
  54     return aResult;  // not face
  55   TopoDS_Face aFace = TopoDS::Face(aShape);
  56   if (aFace.IsNull())
  57     return aResult;  // not face
  58   Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
  59   if (aSurf.IsNull())
  60     return aResult;  // no surface
  61   Handle(Geom_Plane) aPlane = Handle(Geom_Plane)::DownCast(aSurf);
  62   if (aPlane.IsNull())
  63     return aResult;  // not planar
  64   double aA, aB, aC, aD;
  65   aPlane->Coefficients(aA, aB, aC, aD);
  66   aResult = std::shared_ptr<GeomAPI_Pln>(new GeomAPI_Pln(aA, aB, aC, aD));
  67   return aResult;
  68 }
  69
  70 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_FaceBuilder::planarFace(std::shared_ptr<GeomAPI_Pln> thePlane,
  71              double theX, double theY,
  72              double theWidth, double theHeight)
  73 {
  74   double aA, aB, aC, aD;
  75   thePlane->coefficients(aA, aB, aC, aD);
  76   gp_Pln aPlane(aA, aB, aC, aD);
  77
  78   // half of the size in each direction from the center
  79   BRepBuilderAPI_MakeFace aFaceBuilder(aPlane, theX, theX + theWidth,
  80                                        theY, theY + theHeight);
  81   std::shared_ptr<GeomAPI_Shape> aRes(new GeomAPI_Shape);
  82   aRes->setImpl(new TopoDS_Shape(aFaceBuilder.Face()));
  83   return aRes;
  84 }