+/// Obtain the point object from specified constraint parameter
+std::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
+ const std::string& theAttribute);
+
+std::shared_ptr<SketchPlugin_Line> getFeatureLine(DataPtr theData,
+ const std::string& theAttribute);
+
+std::shared_ptr<GeomAPI_Pnt2d> getProjectionPoint(
+ const std::shared_ptr<SketchPlugin_Line>& theLine,
+ const std::shared_ptr<GeomAPI_Pnt2d>& thePoint);
+