===GetColourMap===

The **GetColourMap** function of the [[AQLHistResponse]] class returns a dictionary used to convert numerical values into colours.

This function is generally suitable for //discrete// values. Additional logic will be needed to interpolate between colours on continuous values. You might want to consider [[GetColumnColour]] or [[GetAnalogueColourMap]] when working with continuous numbers.

==Parameters==

^Parameter^Type^Default^Meaning^
|col|str||The name of the column|
|val|float||The value to be converted to a colour|

==Return==

Returns a dictionary of values, each containing a single colour code. This will be a tuple containing the red, green and blue values for the colour.