scale[/qualifiers]Plot on the display the color scale used in the horizontal direction of the screen. Each color is associated to an intensity level calculated or input within the display commands. Aside to the color scale will appear the values of the intensity level associated to each color.
Write a string to label the color scale.
To increase the number of intensity level written aside to the color scale. This number has not excede the number of levels.
force the scale be plotted in the vertical direction of the screen.
Examples:
scale ! display the color scale horizontally scale/vertical ! display the color scale vertically