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 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_FaceBuilder::square(
  16     std::shared_ptr<GeomAPI_Pnt> theCenter, std::shared_ptr<GeomAPI_Dir> theNormal,
  17     const double theSize)
  18 {
  19   const gp_Pnt& aCenter = theCenter->impl<gp_Pnt>();
  20   const gp_Dir& aDir = theNormal->impl<gp_Dir>();
  21   gp_Pln aPlane(aCenter, aDir);
  22   // half of the size in each direction from the center
  23   BRepBuilderAPI_MakeFace aFaceBuilder(aPlane, -theSize / 2., theSize / 2., -theSize / 2.,
  24                                        theSize / 2.);
  25   std::shared_ptr<GeomAPI_Shape> aRes(new GeomAPI_Shape);
  26   aRes->setImpl(new TopoDS_Shape(aFaceBuilder.Face()));
  27   return aRes;
  28 }
  29
  30 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_FaceBuilder::plane(
  31     std::shared_ptr<GeomAPI_Shape> theFace)
  32 {
  33   std::shared_ptr<GeomAPI_Pln> aResult;
  34   if (!theFace)
  35     return aResult;  // bad shape
  36   TopoDS_Shape aShape = theFace->impl<TopoDS_Shape>();
  37   if (aShape.IsNull())
  38     return aResult;  // null shape
  39   if (aShape.ShapeType() != TopAbs_FACE)
  40     return aResult;  // not face
  41   TopoDS_Face aFace = TopoDS::Face(aShape);
  42   if (aFace.IsNull())
  43     return aResult;  // not face
  44   Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
  45   if (aSurf.IsNull())
  46     return aResult;  // no surface
  47   Handle(Geom_Plane) aPlane = Handle(Geom_Plane)::DownCast(aSurf);
  48   if (aPlane.IsNull())
  49     return aResult;  // not planar
  50   double aA, aB, aC, aD;
  51   aPlane->Coefficients(aA, aB, aC, aD);
  52   aResult = std::shared_ptr<GeomAPI_Pln>(new GeomAPI_Pln(aA, aB, aC, aD));
  53   return aResult;
  54 }
  55
  56
  57 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_FaceBuilder::
  58   planarFace(std::shared_ptr<GeomAPI_Pln> thePlane,
  59              double theX, double theY,
  60              double theWidth, double theHeight)
  61 {
  62   double aA, aB, aC, aD;
  63   thePlane->coefficients(aA, aB, aC, aD);
  64   gp_Pln aPlane(aA, aB, aC, aD);
  65
  66   // half of the size in each direction from the center
  67   BRepBuilderAPI_MakeFace aFaceBuilder(aPlane, theX, theX + theWidth,
  68                                        theY, theY + theHeight);
  69   std::shared_ptr<GeomAPI_Shape> aRes(new GeomAPI_Shape);
  70   aRes->setImpl(new TopoDS_Shape(aFaceBuilder.Face()));
  71   return aRes;
  72 }