+ std::shared_ptr<ModelAPI_AttributeRefList> aRefList = std::dynamic_pointer_cast<
+ ModelAPI_AttributeRefList>(data()->attribute(SketchPlugin_Sketch::FEATURES_ID()));
+ std::list<ObjectPtr> aFeatures = aRefList->list();
+ std::list<ObjectPtr>::const_iterator anIt = aFeatures.begin();
+ int aResultIndex = 1; // number of the counted (created) features, started from 1
+ int aFeatureIndex = -1; // number of the not-empty features in the list
+ for (; anIt != aFeatures.end(); anIt++) {
+ if (anIt->get())
+ aFeatureIndex++;
+ if (aFeatureIndex == theIndex)
+ break;
+ aResultIndex++;
+ }
+ return aResultIndex;