/// \param isToDisplay a flag about the display or erase the feature
void visualizeFeature(const FeaturePtr& theFeature, const bool isEditOperation,
const bool isToDisplay, const bool isFlushRedisplay = true);
/// \param isToDisplay a flag about the display or erase the feature
void visualizeFeature(const FeaturePtr& theFeature, const bool isEditOperation,
const bool isToDisplay, const bool isFlushRedisplay = true);