33.19.31 Colormap Editor Dialog Box

The Colormap Editor dialog box allows you to create custom colormaps. See Section  29.2.5 for details about the items below.

Controls

(The Drawing Area)   is used to interactively modify colormaps. You can use the notion of anchor points to interpolate linearly between two defined anchor points. The colors at the top of the dialog box allow you to preview the colormap that is being defined, The black bar and white squares below the colors allow you to set, delete, and modify anchor points.

Color   specifies color components for the currently selected anchor point.

Color Space   gives you a choice of selecting the color specification.

RGB   enables the specification of colors based on their red, green, and blue components.

HSV   enables the specification of colors based on their hue, saturation, and value.

Red, Green, Blue   are scales with which you can specify the RGB components of the selected anchor color. These scales will appear when RGB is selected.

Hue, Saturation, Value   are scales with which you can specify the HSV components of the selected anchor color. These scales will appear when HSV is selected.

Colormap   lists colormap names and the name of the colormap being edited.

Name   sets the name of the colormap being edited/selected. You can rename existing colormaps and provide names for new colormaps.

Currently Defined   contains a drop-down list of all pre-defined colormaps and all custom colormaps defined by you. You can select a colormap to be modified from this list.

Colormap Size   specifies the number of distinct colors in the colormap. You may specify from 2 to 100 colors.