src/SketchPlugin/SketchPlugin_Circle.cpp

   1 // File:        SketchPlugin_Circle.cpp
   2 // Created:     26 May 2014
   3 // Author:      Artem ZHIDKOV
   4
   5 #include "SketchPlugin_Circle.h"
   6 #include "SketchPlugin_Sketch.h"
   7 #include <ModelAPI_Data.h>
   8
   9 #include <GeomAPI_Pnt2d.h>
  10
  11 #include <GeomDataAPI_Point2D.h>
  12 #include <GeomDataAPI_Dir.h>
  13
  14 #include <GeomAlgoAPI_PointBuilder.h>
  15 #include <GeomAlgoAPI_EdgeBuilder.h>
  16 #include <GeomAlgoAPI_CompoundBuilder.h>
  17
  18 #include <ModelAPI_AttributeDouble.h>
  19
  20 SketchPlugin_Circle::SketchPlugin_Circle()
  21   : SketchPlugin_Feature()
  22 {
  23 }
  24
  25 void SketchPlugin_Circle::initAttributes()
  26 {
  27   data()->addAttribute(CIRCLE_ATTR_CENTER, GeomDataAPI_Point2D::type());
  28   data()->addAttribute(CIRCLE_ATTR_RADIUS, ModelAPI_AttributeDouble::type());
  29 }
  30
  31 void SketchPlugin_Circle::execute()
  32 {
  33 }
  34
  35 const boost::shared_ptr<GeomAPI_Shape>& SketchPlugin_Circle::preview()
  36 {
  37   SketchPlugin_Sketch* aSketch = sketch();
  38   if (aSketch) {
  39     std::list<boost::shared_ptr<GeomAPI_Shape> > aShapes;
  40
  41     // compute a circle point in 3D view
  42     boost::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
  43       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(CIRCLE_ATTR_CENTER));
  44     boost::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
  45     // make a visible point
  46     boost::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
  47     aShapes.push_back(aCenterPointShape);
  48
  49     // make a visible circle
  50     boost::shared_ptr<GeomDataAPI_Dir> aNDir =
  51       boost::dynamic_pointer_cast<GeomDataAPI_Dir>(aSketch->data()->attribute(SKETCH_ATTR_NORM));
  52     bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
  53     if (aHasPlane) {
  54       boost::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
  55       // compute the circle radius
  56       AttributeDoublePtr aRadiusAttr =
  57         boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CIRCLE_ATTR_RADIUS));
  58       double aRadius = aRadiusAttr->value();
  59
  60       boost::shared_ptr<GeomAPI_Shape> aCircleShape =
  61                               GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aRadius);
  62       aShapes.push_back(aCircleShape);
  63     }
  64     boost::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
  65     setPreview(aCompound);
  66   }
  67   return getPreview();
  68 }
  69
  70 void SketchPlugin_Circle::move(double theDeltaX, double theDeltaY)
  71 {
  72   boost::shared_ptr<ModelAPI_Data> aData = data();
  73   if (!aData->isValid())
  74     return;
  75
  76   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
  77         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(CIRCLE_ATTR_CENTER));
  78   aPoint1->setValue(aPoint1->x() + theDeltaX, aPoint1->y() + theDeltaY);
  79 }
  80
  81 double SketchPlugin_Circle::distanceToPoint(const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint)
  82 {
  83   boost::shared_ptr<ModelAPI_Data> aData = data();
  84   boost::shared_ptr<GeomDataAPI_Point2D> aPoint =
  85         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(CIRCLE_ATTR_CENTER));
  86
  87   return aPoint->pnt()->distance(thePoint);
  88 }