+void SketchPlugin_ConstraintRadius::move(double theDeltaX, double theDeltaY)
+{
+ boost::shared_ptr<ModelAPI_Data> aData = data();
+ if (!aData->isValid())
+ return;
+
+ boost::shared_ptr<ModelAPI_AttributeRefAttr> aRef =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(data()->attribute(CONSTRAINT_ATTR_ENTITY_A));
+ FeaturePtr aFeature = aRef->feature();
+ if (!aFeature)
+ return;
+ std::string aCenterAttrName;
+ if (aFeature->getKind() == SKETCH_CIRCLE_KIND)
+ aCenterAttrName = CIRCLE_ATTR_CENTER;
+ else if (aFeature->getKind() == SKETCH_ARC_KIND)
+ aCenterAttrName = ARC_ATTR_CENTER;
+ boost::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
+ boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aFeature->data()->attribute(aCenterAttrName));
+ boost::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
+
+ // The specified delta applied on the circle curve,
+ // so it will be scaled due to distance between flyout and center points
+ boost::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
+ boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(CONSTRAINT_ATTR_FLYOUT_VALUE_PNT));
+ boost::shared_ptr<GeomAPI_Pnt2d> aFlyout = aFlyoutAttr->pnt();
+
+ boost::shared_ptr<ModelAPI_AttributeDouble> aRadius =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(aData->attribute(CONSTRAINT_ATTR_VALUE));
+ double aScale = aFlyout->distance(aCenter) / aRadius->value();
+
+ boost::shared_ptr<GeomAPI_Circ2d> aCircle(new GeomAPI_Circ2d(aCenter, aFlyout));
+ aFlyout->setX(aFlyout->x() + aScale * theDeltaX);
+ aFlyout->setY(aFlyout->y() + aScale * theDeltaY);
+ aFlyout = aCircle->project(aFlyout);
+
+ aFlyoutAttr->setValue(aFlyout->x(), aFlyout->y());
+}