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>(
  41       data()->attribute(SketchPlugin_Arc::CENTER_ID()));
  42       // compute the arc start point
  43       boost::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
  44         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
  45         data()->attribute(SketchPlugin_Arc::START_ID()));
  46       if (aCenterAttr->isInitialized() && aStartAttr->isInitialized()) {
  47       boost::shared_ptr<GeomAPI_Pnt> aCenter(
  48         aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
  49       // make a visible point
  50       boost::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
  51       aShapes.push_back(aCenterPointShape);
  52
  53       // make a visible circle
  54       boost::shared_ptr<GeomDataAPI_Dir> aNDir =
  55         boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
  56         aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
  57       bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
  58       if (aHasPlane) {
  59         boost::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
  60         boost::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
  61
  62         // compute and change the arc end point
  63         boost::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
  64           boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(
  65           SketchPlugin_Arc::END_ID()));
  66         if (anEndAttr->isInitialized())
  67         {
  68           boost::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
  69             new GeomAPI_Circ2d(aCenterAttr->pnt(), aStartAttr->pnt()));
  70           boost::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEndAttr->pnt());
  71           if (aProjection && anEndAttr->pnt()->distance(aProjection) > tolerance)
  72             anEndAttr->setValue(aProjection);
  73         }
  74         boost::shared_ptr<GeomAPI_Pnt> aEndPoint(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
  75
  76         boost::shared_ptr<GeomAPI_Shape> aCircleShape =
  77                    GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
  78         if (aCircleShape)
  79           aShapes.push_back(aCircleShape);
  80       }
  81       boost::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
  82       // store the result
  83       boost::shared_ptr<ModelAPI_ResultConstruction> aConstr =
  84         document()->createConstruction(data());
  85       aConstr->setShape(aCompound);
  86       aConstr->setIsInHistory(false);
  87       setResult(aConstr);
  88     }
  89   }
  90 }
  91
  92 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
  93 {
  94   boost::shared_ptr<ModelAPI_Data> aData = data();
  95   if (!aData->isValid())
  96     return;
  97
  98   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
  99         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 100         aData->attribute(SketchPlugin_Arc::CENTER_ID()));
 101   aPoint1->setValue(aPoint1->x() + theDeltaX, aPoint1->y() + theDeltaY);
 102
 103   boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
 104         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 105         aData->attribute(SketchPlugin_Arc::START_ID()));
 106   aPoint2->setValue(aPoint2->x() + theDeltaX, aPoint2->y() + theDeltaY);
 107
 108   boost::shared_ptr<GeomDataAPI_Point2D> aPoint3 =
 109         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 110         aData->attribute(SketchPlugin_Arc::END_ID()));
 111   aPoint3->setValue(aPoint3->x() + theDeltaX, aPoint3->y() + theDeltaY);
 112 }
 113
 114 double SketchPlugin_Arc::distanceToPoint(const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 115 {
 116   double aDelta = 0;
 117   boost::shared_ptr<ModelAPI_Data> aData = data();
 118
 119   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
 120         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 121         aData->attribute(SketchPlugin_Arc::CENTER_ID()));
 122   aDelta = aPoint1->pnt()->distance(thePoint);
 123
 124   boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
 125         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 126         aData->attribute(SketchPlugin_Arc::START_ID()));
 127   double aDistance = aPoint2->pnt()->distance(thePoint);
 128   if (aDelta < aDistance)
 129     aDelta = aDistance;
 130
 131   boost::shared_ptr<GeomDataAPI_Point2D> aPoint3 =
 132         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 133         aData->attribute(SketchPlugin_Arc::END_ID()));
 134   aDistance = aPoint3->pnt()->distance(thePoint);
 135   if (aDelta < aDistance)
 136     aDelta = aDistance;
 137
 138   return aDelta;
 139 }