refs #80 - Sketch base GUI: create/draw point, circle and arc

[modules/shaper.git] / src / SketchPlugin / SketchPlugin_Circle.cpp

diff --git a/src/SketchPlugin/SketchPlugin_Circle.cpp b/src/SketchPlugin/SketchPlugin_Circle.cpp
index a083b1845aee55d10233a1b5b78c997b8d8d2749..af26e92308ee7b48c6a9aa077989ae37dbff1acd 100644 (file)
--- a/src/SketchPlugin/SketchPlugin_Circle.cpp
+++ b/src/SketchPlugin/SketchPlugin_Circle.cpp
@@ -6,6 +6,11 @@
 #include "SketchPlugin_Sketch.h"
 #include <ModelAPI_Data.h>
 #include <GeomDataAPI_Point2D.h>
+#include <GeomAlgoAPI_PointBuilder.h>
+#include <GeomAlgoAPI_EdgeBuilder.h>
+#include <GeomAlgoAPI_CompoundBuilder.h>
+#include <GeomDataAPI_Dir.h>
+
 #include <ModelAPI_AttributeDouble.h>
 
 SketchPlugin_Circle::SketchPlugin_Circle()
@@ -25,6 +30,38 @@ void SketchPlugin_Circle::execute()
 
 const boost::shared_ptr<GeomAPI_Shape>& SketchPlugin_Circle::preview()
 {
+  SketchPlugin_Sketch* aSketch = sketch();
+  if (aSketch) {
+    // compute a circle point in 3D view
+    boost::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = 
+      boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(CIRCLE_ATTR_CENTER));
+    boost::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
+
+    // compute the circle radius
+    boost::shared_ptr<ModelAPI_AttributeDouble> aRadiusAttr = 
+      boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CIRCLE_ATTR_RADIUS));
+    double aRadius = aRadiusAttr->value();
+
+    std::list<boost::shared_ptr<GeomAPI_Shape> > aShapes;
+    // make a visible point
+    boost::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
+    aShapes.push_back(aCenterPointShape);
+
+    // make a visible circle
+    boost::shared_ptr<GeomDataAPI_Dir> aNDir = 
+      boost::dynamic_pointer_cast<GeomDataAPI_Dir>(aSketch->data()->attribute(SKETCH_ATTR_NORM));
+    bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
+    if (aHasPlane) {
+      boost::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
+
+      boost::shared_ptr<GeomAPI_Shape> aCircleShape = 
+                              GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aRadius);
+      aShapes.push_back(aCircleShape);
+
+      boost::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
+      setPreview(aCompound);
+    }
+  }
   /// \todo Implement preview for the circle
   return getPreview();
 }