This method modifies the Legend object.
Optional arguments
- legend
 
A Legend object from which attributes are to be copied.
 
- show
 
A Boolean specifying whether to show the legend. The default value is ON.
 
- showMinMax
 
A Boolean specifying whether to display the minimum and maximum values. The default value is OFF.
 
- title
 
A String specifying  the title to appear on the legend. The default value is an empty string.
 
- numberFormat
 
A SymbolicConstant specifying how the minimum and maximum values are formatted. Possible values are AUTOMATIC, DECIMAL, SCIENTIFIC, and ENGINEERING. The default value is AUTOMATIC.
 
- numDigits
 
An Int specifying the number of significant digits displayed for the minimum and maximum values. Possible values are 1 to 7. The default value is 2.
 
- textStyle
 
A TextStyle object specifying the text properties used to display the legend text.
 
- titleStyle
 
A TextStyle object specifying  the text properties used to display the legend title.