src/SketchPlugin/SketchPlugin_Arc.cpp

   1 // File:        SketchPlugin_Arc.cpp
   2 // Created:     26 Apr 2014
   3 // Author:      Artem ZHIDKOV
   4
   5 #include "SketchPlugin_Arc.h"
   6 #include "SketchPlugin_Sketch.h"
   7 #include <ModelAPI_Data.h>
   8 #include <ModelAPI_ResultConstruction.h>
   9
  10 #include <GeomAPI_Circ2d.h>
  11 #include <GeomAPI_Pnt2d.h>
  12 #include <GeomDataAPI_Point2D.h>
  13 #include <GeomDataAPI_Dir.h>
  14 #include <GeomAlgoAPI_PointBuilder.h>
  15 #include <GeomAlgoAPI_EdgeBuilder.h>
  16 #include <GeomAlgoAPI_CompoundBuilder.h>
  17
  18 const double tolerance = 1e-7;
  19
  20 SketchPlugin_Arc::SketchPlugin_Arc()
  21   : SketchPlugin_Feature()
  22 {
  23 }
  24
  25 void SketchPlugin_Arc::initAttributes()
  26 {
  27   data()->addAttribute(SketchPlugin_Arc::CENTER_ID(), GeomDataAPI_Point2D::type());
  28   data()->addAttribute(SketchPlugin_Arc::START_ID(),  GeomDataAPI_Point2D::type());
  29   data()->addAttribute(SketchPlugin_Arc::END_ID(),    GeomDataAPI_Point2D::type());
  30 }
  31
  32 void SketchPlugin_Arc::execute()
  33 {
  34   SketchPlugin_Sketch* aSketch = sketch();
  35   if (aSketch) {
  36     std::list<boost::shared_ptr<GeomAPI_Shape> > aShapes;
  37
  38     // compute a circle point in 3D view
  39     boost::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
  40       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::CENTER_ID()));
  41       // compute the arc start point
  42       boost::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
  43         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
  44       if (aCenterAttr->isInitialized() && aStartAttr->isInitialized()) {
  45       boost::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
  46       // make a visible point
  47       boost::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
  48       aShapes.push_back(aCenterPointShape);
  49
  50       // make a visible circle
  51       boost::shared_ptr<GeomDataAPI_Dir> aNDir =
  52         boost::dynamic_pointer_cast<GeomDataAPI_Dir>(aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
  53       bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
  54       if (aHasPlane) {
  55         boost::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
  56         boost::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
  57
  58         // compute and change the arc end point
  59         boost::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
  60           boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
  61         if (anEndAttr->isInitialized())
  62         {
  63           boost::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
  64             new GeomAPI_Circ2d(aCenterAttr->pnt(), aStartAttr->pnt()));
  65           boost::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEndAttr->pnt());
  66           if (aProjection && anEndAttr->pnt()->distance(aProjection) > tolerance)
  67             anEndAttr->setValue(aProjection);
  68         }
  69         boost::shared_ptr<GeomAPI_Pnt> aEndPoint(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
  70
  71         boost::shared_ptr<GeomAPI_Shape> aCircleShape =
  72                    GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
  73         if (aCircleShape)
  74           aShapes.push_back(aCircleShape);
  75       }
  76       boost::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
  77       // store the result
  78       boost::shared_ptr<ModelAPI_ResultConstruction> aConstr =
  79         document()->createConstruction(data());
  80       aConstr->setShape(aCompound);
  81       results().push_back(aConstr);
  82     }
  83   }
  84 }
  85
  86 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
  87 {
  88   boost::shared_ptr<ModelAPI_Data> aData = data();
  89   if (!aData->isValid())
  90     return;
  91
  92   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
  93         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::CENTER_ID()));
  94   aPoint1->setValue(aPoint1->x() + theDeltaX, aPoint1->y() + theDeltaY);
  95
  96   boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
  97         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::START_ID()));
  98   aPoint2->setValue(aPoint2->x() + theDeltaX, aPoint2->y() + theDeltaY);
  99
 100   boost::shared_ptr<GeomDataAPI_Point2D> aPoint3 =
 101         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::END_ID()));
 102   aPoint3->setValue(aPoint3->x() + theDeltaX, aPoint3->y() + theDeltaY);
 103 }
 104
 105 double SketchPlugin_Arc::distanceToPoint(const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 106 {
 107   double aDelta = 0;
 108   boost::shared_ptr<ModelAPI_Data> aData = data();
 109
 110   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
 111         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::CENTER_ID()));
 112   aDelta = aPoint1->pnt()->distance(thePoint);
 113
 114   boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
 115         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::START_ID()));
 116   double aDistance = aPoint2->pnt()->distance(thePoint);
 117   if (aDelta < aDistance)
 118     aDelta = aDistance;
 119
 120   boost::shared_ptr<GeomDataAPI_Point2D> aPoint3 =
 121         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::END_ID()));
 122   aDistance = aPoint3->pnt()->distance(thePoint);
 123   if (aDelta < aDistance)
 124     aDelta = aDistance;
 125
 126   return aDelta;
 127 }