getBackwardLegendMapping();
The getBackwardLegendMapping method returns backward dictionary of connection of legends with data bindings
The method returns the JSON object which items are presented in the following format: <identifier of data binding: legend identifier>.
Dictionnary with normal value order is in the DataVisualizer.LegendMapping property.
The property use is given in the page with description of the DataVisualizer.GlobalItemsIds property.