src/GeomAPI/GeomAPI_Angle2d.cpp

   1 // Copyright (C) 2016-20xx CEA/DEN, EDF R&D
   2
   3 // File:        GeomAPI_Angle2d.cpp
   4 // Created:     19 April 2016
   5 // Author:      Artem ZHIDKOV
   6
   7 #include <GeomAPI_Angle2d.h>
   8 #include <GeomAPI_Dir2d.h>
   9 #include <GeomAPI_Lin2d.h>
  10 #include <GeomAPI_Pnt2d.h>
  11 #include <GeomAPI_XY.h>
  12
  13 #include <gp_Dir2d.hxx>
  14 #include <gp_Pnt2d.hxx>
  15 #include <gp_XY.hxx>
  16
  17 struct ThreePoints2d {
  18   gp_Pnt2d myCenter;
  19   gp_Pnt2d myFirst;
  20   gp_Pnt2d mySecond;
  21   bool myReversed[2];
  22 };
  23
  24 #define MY_ANGLE implPtr<ThreePoints2d>()
  25 #define PI 3.1415926535897932
  26
  27 static ThreePoints2d* newAngle(const std::shared_ptr<GeomAPI_Pnt2d>& theCenter,
  28                                const std::shared_ptr<GeomAPI_Pnt2d>& theFirst,
  29                                const std::shared_ptr<GeomAPI_Pnt2d>& theSecond)
  30 {
  31   ThreePoints2d* aResult = new ThreePoints2d;
  32   aResult->myCenter = gp_Pnt2d(theCenter->x(), theCenter->y());
  33   aResult->myFirst  = gp_Pnt2d(theFirst->x(), theFirst->y());
  34   aResult->mySecond = gp_Pnt2d(theSecond->x(), theSecond->y());
  35   aResult->myReversed[0] = aResult->myReversed[1] = false;
  36   return aResult;
  37 }
  38
  39 static ThreePoints2d* newAngle(const std::shared_ptr<GeomAPI_Pnt2d>& theStart1,
  40                                const std::shared_ptr<GeomAPI_Pnt2d>& theEnd1,
  41                                const std::shared_ptr<GeomAPI_Pnt2d>& theStart2,
  42                                const std::shared_ptr<GeomAPI_Pnt2d>& theEnd2)
  43 {
  44   std::shared_ptr<GeomAPI_Lin2d> aLine1(new GeomAPI_Lin2d(theStart1, theEnd1));
  45   std::shared_ptr<GeomAPI_Lin2d> aLine2(new GeomAPI_Lin2d(theStart2, theEnd2));
  46   std::shared_ptr<GeomAPI_Pnt2d> aCenter = aLine1->intersect(aLine2);
  47   bool isParallel = !aCenter;
  48   if (isParallel)
  49     aCenter = theStart1;
  50   std::shared_ptr<GeomAPI_Pnt2d> aPoint1, aPoint2;
  51   if (isParallel)
  52     aPoint1 = aPoint2 = theEnd1;
  53   else {
  54     aPoint1 = theStart1->distance(aCenter) < theEnd1->distance(aCenter) ? theEnd1 : theStart1;
  55     aPoint2 = theStart2->distance(aCenter) < theEnd2->distance(aCenter) ? theEnd2 : theStart2;
  56   }
  57   ThreePoints2d* anAngle = newAngle(aCenter, aPoint1, aPoint2);
  58   anAngle->myReversed[0] = aPoint1 == theStart1;
  59   anAngle->myReversed[1] = !isParallel && aPoint2 == theStart2;
  60   return anAngle;
  61 }
  62
  63 static ThreePoints2d* newAngle(const std::shared_ptr<GeomAPI_Lin2d>& theLine1, bool theReversed1,
  64                                const std::shared_ptr<GeomAPI_Lin2d>& theLine2, bool theReversed2)
  65 {
  66   std::shared_ptr<GeomAPI_Pnt2d> aCenter = theLine1->intersect(theLine2);
  67   if (!aCenter)
  68     aCenter = theLine1->location();
  69   double aCoeff = theReversed1 ? -1.0 : 1.0;
  70   std::shared_ptr<GeomAPI_Pnt2d> aPoint1(new GeomAPI_Pnt2d(
  71       aCenter->xy()->added(theLine1->direction()->xy()->multiplied(aCoeff))));
  72   aCoeff = theReversed2 ? -1.0 : 1.0;
  73   std::shared_ptr<GeomAPI_Pnt2d> aPoint2(new GeomAPI_Pnt2d(
  74       aCenter->xy()->added(theLine2->direction()->xy()->multiplied(aCoeff))));
  75   ThreePoints2d* anAngle = newAngle(aCenter, aPoint1, aPoint2);
  76   anAngle->myReversed[0] = theReversed1;
  77   anAngle->myReversed[1] = theReversed2;
  78   return anAngle;
  79 }
  80
  81
  82
  83 GeomAPI_Angle2d::GeomAPI_Angle2d(const std::shared_ptr<GeomAPI_Pnt2d>& theStartLine1,
  84                                  const std::shared_ptr<GeomAPI_Pnt2d>& theEndLine1,
  85                                  const std::shared_ptr<GeomAPI_Pnt2d>& theStartLine2,
  86                                  const std::shared_ptr<GeomAPI_Pnt2d>& theEndLine2)
  87     : GeomAPI_Interface(newAngle(theStartLine1, theEndLine1, theStartLine2, theEndLine2))
  88 {
  89 }
  90
  91 GeomAPI_Angle2d::GeomAPI_Angle2d(const std::shared_ptr<GeomAPI_Lin2d>& theLine1, bool theReversed1,
  92                                  const std::shared_ptr<GeomAPI_Lin2d>& theLine2, bool theReversed2)
  93     : GeomAPI_Interface(newAngle(theLine1, theReversed1, theLine2, theReversed2))
  94 {
  95 }
  96
  97 GeomAPI_Angle2d::GeomAPI_Angle2d(const std::shared_ptr<GeomAPI_Pnt2d>& theCenter,
  98                                  const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
  99                                  const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2)
 100     : GeomAPI_Interface(newAngle(theCenter, thePoint1, thePoint2))
 101 {
 102 }
 103
 104 std::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Angle2d::center()
 105 {
 106   gp_Pnt2d aPnt = MY_ANGLE->myCenter;
 107   return std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aPnt.X(), aPnt.Y()));
 108 }
 109
 110 std::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Angle2d::firstPoint()
 111 {
 112   gp_Pnt2d aPnt = MY_ANGLE->myFirst;
 113   return std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aPnt.X(), aPnt.Y()));
 114 }
 115
 116 std::shared_ptr<GeomAPI_Pnt2d> GeomAPI_Angle2d::secondPoint()
 117 {
 118   gp_Pnt2d aPnt = MY_ANGLE->mySecond;
 119   return std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aPnt.X(), aPnt.Y()));
 120 }
 121
 122 double GeomAPI_Angle2d::angleDegree()
 123 {
 124   return angleRadian() * 180.0 / PI;
 125 }
 126
 127 double GeomAPI_Angle2d::angleRadian()
 128 {
 129   ThreePoints2d* anAngle = MY_ANGLE;
 130   gp_Dir2d aDir1(anAngle->myFirst.XY() - anAngle->myCenter.XY());
 131   gp_Dir2d aDir2(anAngle->mySecond.XY() - anAngle->myCenter.XY());
 132   double aRes = aDir1.Angle(aDir2);
 133   if (aRes < 0.0) aRes += 2 * PI;
 134   return aRes;
 135 }
 136
 137 bool GeomAPI_Angle2d::isReversed(int theIndex)
 138 {
 139   return MY_ANGLE->myReversed[theIndex & 0x1];
 140 }