+ SketchPlugin_Sketch* aSketch = sketch();
+ if(!aSketch) {
+ return;
+ }
+
+ // Compute a circle in 3D view.
+ std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
+ AttributeDoublePtr aRadiusAttr = real(RADIUS_ID());
+ if(!aCenterAttr->isInitialized() || !aRadiusAttr->isInitialized()) {
+ return;
+ }
+
+ double aRadius = aRadiusAttr->value();
+ if(aRadius < tolerance) {
+ return;
+ }
+
+ // Make a visible point.
+ SketchPlugin_Sketch::createPoint2DResult(this, sketch(), CENTER_ID(), 0);
+
+ // Make a visible circle.
+ std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
+ std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
+ aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
+ std::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
+
+ std::shared_ptr<GeomAPI_Shape> aCircleShape =
+ GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aRadius);
+
+ std::shared_ptr<ModelAPI_ResultConstruction> aResult = document()->createConstruction(data(), 1);
+ aResult->setShape(aCircleShape);
+ aResult->setIsInHistory(false);
+ setResult(aResult, 1);