code: def chartType( self ):
          
          if ( self._chartType ):
              return self._chartType
          
          scene = self.scene()
          if ( not scene ):
              return 0
          
          return scene.chartType()
docs: Returns the chart type for this item.  If no type is explicitely set,
          then the scenes chart type will be utilized.
          
          :return     <XChartScene.Type>