src/GeomAPI/GeomAPI_Circ2d.cpp

   1 // File:        GeomAPI_Circ2d.cpp
   2 // Created:     29 May 2014
   3 // Author:      Artem ZHIDKOV
   4
   5 #include <GeomAPI_Circ2d.h>
   6 #include <GeomAPI_Pnt2d.h>
   7 #include <GeomAPI_Dir2d.h>
   8
   9 #include <gp_Dir2d.hxx>
  10 #include <gp_Circ2d.hxx>
  11 #include <gp_Pnt2d.hxx>
  12 #include <gp_Ax2d.hxx>
  13 #include <Geom2d_Circle.hxx>
  14 #include <Geom2dAPI_ProjectPointOnCurve.hxx>
  15 #include <Precision.hxx>
  16
  17 #include <IntAna2d_AnaIntersection.hxx>
  18
  19 #define MY_CIRC2D static_cast<gp_Circ2d*>(myImpl)
  20
  21 static gp_Circ2d* newCirc2d(const double theCenterX, const double theCenterY,
  22                             const gp_Dir2d theDir, const double theRadius)
  23 {
  24   gp_Pnt2d aCenter(theCenterX, theCenterY);
  25   return new gp_Circ2d(gp_Ax2d(aCenter, theDir), theRadius);
  26 }
  27
  28 static gp_Circ2d* newCirc2d(const double theCenterX, const double theCenterY,
  29                             const double thePointX,   const double thePointY)
  30 {
  31   gp_Pnt2d aCenter(theCenterX, theCenterY);
  32   gp_Pnt2d aPoint(thePointX, thePointY);
  33
  34   double aRadius = aCenter.Distance(aPoint);
  35
  36   if (aCenter.IsEqual(aPoint, Precision::Confusion()))
  37       return NULL;
  38
  39   gp_Dir2d aDir(theCenterX - thePointX, theCenterY - thePointY);
  40
  41   return newCirc2d(theCenterX, theCenterY, aDir, aRadius);
  42 }
  43
  44 GeomAPI_Circ2d::GeomAPI_Circ2d(const boost::shared_ptr<GeomAPI_Pnt2d>& theCenter,
  45                                const boost::shared_ptr<GeomAPI_Pnt2d>& theCirclePoint)
  46   : GeomAPI_Interface(newCirc2d(theCenter->x(), theCenter->y(),
  47                                 theCirclePoint->x(),   theCirclePoint->y()))
  48 {}
  49
  50 GeomAPI_Circ2d::GeomAPI_Circ2d(const boost::shared_ptr<GeomAPI_Pnt2d>& theCenter,
  51                                const boost::shared_ptr<GeomAPI_Dir2d>& theDir,
  52                                double theRadius)
  53  : GeomAPI_Interface(newCirc2d(theCenter->x(), theCenter->y(),
  54                                theDir->impl<gp_Dir2d>(), theRadius))
  55 {
  56
  57 }
  58
  59 const boost::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Circ2d::project(const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint) const
  60 {
  61   boost::shared_ptr<GeomAPI_Pnt2d> aResult;
  62   if (!MY_CIRC2D)
  63     return aResult;
  64
  65   Handle(Geom2d_Circle) aCircle = new Geom2d_Circle(MY_CIRC2D->Axis(), MY_CIRC2D->Radius());//(aCirc);
  66
  67   const gp_Pnt2d& aPoint = thePoint->impl<gp_Pnt2d>();
  68
  69   Geom2dAPI_ProjectPointOnCurve aProj(aPoint, aCircle);
  70   Standard_Integer aNbPoint = aProj.NbPoints();
  71   double aX, anY;
  72   if (aNbPoint > 0) {
  73     double aMinDistance = 0, aDistance;
  74     for (Standard_Integer j = 1; j <= aNbPoint; j++) {
  75       gp_Pnt2d aNewPoint = aProj.Point(j);
  76       aDistance = aNewPoint.Distance(aPoint);
  77       if (!aMinDistance || aDistance < aMinDistance) {
  78         aX = aNewPoint.X();
  79         anY = aNewPoint.Y();
  80         aMinDistance = aDistance;
  81         aResult = boost::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aX, anY));
  82       }
  83     }
  84   }
  85   return aResult;
  86 }
  87
  88 const boost::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Circ2d::center() const
  89 {
  90   const gp_Pnt2d& aCenter = MY_CIRC2D->Location();
  91   return boost::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aCenter.X(), aCenter.Y()));
  92 }
  93
  94 double GeomAPI_Circ2d::radius() const
  95 {
  96   return MY_CIRC2D->Radius();
  97 }
  98