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[modules/shaper.git] / 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 std::shared_ptr<GeomAPI_Pnt2d>& theCenter,
45                                const std::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 std::shared_ptr<GeomAPI_Pnt2d>& theCenter,
52                                const std::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 std::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Circ2d::project(
60     const std::shared_ptr<GeomAPI_Pnt2d>& thePoint) const
61 {
62   std::shared_ptr<GeomAPI_Pnt2d> aResult;
63   if (!MY_CIRC2D)
64     return aResult;
65
66   const gp_Pnt2d& aCenter = MY_CIRC2D->Location();
67   const gp_Pnt2d& aPoint = thePoint->impl<gp_Pnt2d>();
68
69   double aDist = aCenter.Distance(aPoint);
70   if (aDist < Precision::Confusion())
71     return aResult;
72
73   if (Abs(aDist - MY_CIRC2D->Radius()) < Precision::Confusion()) {
74     // Point on the circle
75     aResult = std::shared_ptr<GeomAPI_Pnt2d>(
76         new GeomAPI_Pnt2d(thePoint->x(), thePoint->y()));
77   } else {
78     gp_Dir2d aDir(aPoint.XY() - aCenter.XY());
79     gp_XY aNewPoint = aCenter.XY() + aDir.XY() * MY_CIRC2D->Radius();
80     aResult = std::shared_ptr<GeomAPI_Pnt2d>(
81         new GeomAPI_Pnt2d(aNewPoint.X(), aNewPoint.Y()));
82   }
83
84   return aResult;
85 }
86
87 const std::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Circ2d::center() const
88 {
89   const gp_Pnt2d& aCenter = MY_CIRC2D->Location();
90   return std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aCenter.X(), aCenter.Y()));
91 }
92
93 double GeomAPI_Circ2d::radius() const
94 {
95   return MY_CIRC2D->Radius();
96 }
97