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 #include <GeomDataAPI_Point2D.h>
   9 #include <GeomAlgoAPI_PointBuilder.h>
  10 #include <GeomAlgoAPI_EdgeBuilder.h>
  11 #include <GeomAlgoAPI_CompoundBuilder.h>
  12 #include <GeomDataAPI_Dir.h>
  13
  14 #include <ModelAPI_AttributeDouble.h>
  15
  16 SketchPlugin_Circle::SketchPlugin_Circle()
  17   : SketchPlugin_Feature()
  18 {
  19 }
  20
  21 void SketchPlugin_Circle::initAttributes()
  22 {
  23   data()->addAttribute(CIRCLE_ATTR_CENTER, GeomDataAPI_Point2D::type());
  24   data()->addAttribute(CIRCLE_ATTR_RADIUS, ModelAPI_AttributeDouble::type());
  25 }
  26
  27 void SketchPlugin_Circle::execute()
  28 {
  29 }
  30
  31 const boost::shared_ptr<GeomAPI_Shape>& SketchPlugin_Circle::preview()
  32 {
  33   SketchPlugin_Sketch* aSketch = sketch();
  34   if (aSketch) {
  35     // compute a circle point in 3D view
  36     boost::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
  37       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(CIRCLE_ATTR_CENTER));
  38     boost::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
  39
  40     // compute the circle radius
  41     boost::shared_ptr<ModelAPI_AttributeDouble> aRadiusAttr =
  42       boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CIRCLE_ATTR_RADIUS));
  43     double aRadius = aRadiusAttr->value();
  44
  45     std::list<boost::shared_ptr<GeomAPI_Shape> > aShapes;
  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(SKETCH_ATTR_NORM));
  53     bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
  54     if (aHasPlane) {
  55       boost::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
  56
  57       boost::shared_ptr<GeomAPI_Shape> aCircleShape =
  58                               GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aRadius);
  59       aShapes.push_back(aCircleShape);
  60
  61       boost::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
  62       setPreview(aCompound);
  63     }
  64   }
  65   /// \todo Implement preview for the circle
  66   return getPreview();
  67 }