- boost::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
- // 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()));
- // compute the circle radius
- AttributeDoublePtr aRadiusAttr =
- boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CIRCLE_ATTR_RADIUS));
- double aRadius = aRadiusAttr->value();
-
- boost::shared_ptr<GeomAPI_Shape> aCircleShape =
- GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aRadius);
- aShapes.push_back(aCircleShape);
+ if (aCenterAttr->isInitialized()) {
+ boost::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
+ // 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()));
+ // compute the circle radius
+ AttributeDoublePtr aRadiusAttr =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CIRCLE_ATTR_RADIUS));
+ double aRadius = aRadiusAttr->value();
+
+ boost::shared_ptr<GeomAPI_Shape> aCircleShape =
+ GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aRadius);
+ aShapes.push_back(aCircleShape);
+ }