-/// 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);
+protected:
+ /// Returns the current distance between the feature attributes
+ double calculateCurrentDistance();