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, const gp_Dir2d theDir,
  22                             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(
  47         newCirc2d(theCenter->x(), theCenter->y(), theCirclePoint->x(), theCirclePoint->y()))
  48 {
  49 }
  50
  51 GeomAPI_Circ2d::GeomAPI_Circ2d(const boost::shared_ptr<GeomAPI_Pnt2d>& theCenter,
  52                                const boost::shared_ptr<GeomAPI_Dir2d>& theDir, double theRadius)
  53     : GeomAPI_Interface(
  54         newCirc2d(theCenter->x(), theCenter->y(), theDir->impl<gp_Dir2d>(), theRadius))
  55 {
  56
  57 }
  58
  59 const boost::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Circ2d::project(
  60     const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint) const
  61 {
  62   boost::shared_ptr<GeomAPI_Pnt2d> aResult;
  63   if (!MY_CIRC2D)
  64   return aResult;
  65
  66   Handle(Geom2d_Circle) aCircle = new Geom2d_Circle(MY_CIRC2D->Axis(), MY_CIRC2D->Radius());  //(aCirc);
  67
  68   const gp_Pnt2d& aPoint = thePoint->impl<gp_Pnt2d>();
  69
  70   Geom2dAPI_ProjectPointOnCurve aProj(aPoint, aCircle);
  71   Standard_Integer aNbPoint = aProj.NbPoints();
  72   double aX, anY;
  73   if (aNbPoint > 0) {
  74     double aMinDistance = 0, aDistance;
  75     for (Standard_Integer j = 1; j <= aNbPoint; j++) {
  76       gp_Pnt2d aNewPoint = aProj.Point(j);
  77       aDistance = aNewPoint.Distance(aPoint);
  78       if (!aMinDistance || aDistance < aMinDistance) {
  79         aX = aNewPoint.X();
  80         anY = aNewPoint.Y();
  81         aMinDistance = aDistance;
  82         aResult = boost::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aX, anY));
  83       }
  84     }
  85   }
  86   return aResult;
  87 }
  88
  89 const boost::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Circ2d::center() const
  90 {
  91   const gp_Pnt2d& aCenter = MY_CIRC2D->Location();
  92   return boost::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aCenter.X(), aCenter.Y()));
  93 }
  94
  95 double GeomAPI_Circ2d::radius() const
  96 {
  97   return MY_CIRC2D->Radius();
  98 }
  99