Set the color look-up table.
COLORMAP(MAP) sets the current figure's colormap to MAP.
COLORMAP('default') sets the current figure's colormap to
the root's default, whose factory setting is HSV .
MAP = COLORMAP retrieves the current colormap. The values
are in the range from 0 to 1.
A color map matrix may have any number of rows, but it must have
exactly 3 columns. Each row is interpreted as a color, with the
first element specifying the intensity of red light, the second
blue, and the third green. Color intensity can be specified on the
interval 0.0 to 1.0.
For example, [0 0 0] is black, [1 1 1] is white,
[1 0 0] is pure red, [.5 .5 .5] is gray, and
[127/255 1 212/255] is aquamarine.
Graphics objects that use pseudocolor -- SURFACE and PATCH objects,
which are created by the functions MESH , SURF , and PCOLOR -- map
a color matrix, C, whose values are in the range [Cmin, Cmax],
to an array of indices, k, in the range [1, m].
The values of Cmin and Cmax are either min(min(C)) and max(max(C)),
or are specified by CAXIS . The mapping is linear, with Cmin
mapping to index 1 and Cmax mapping to index m. The indices are
then used with the colormap to determine the color associated
with each matrix element. See CAXIS for details.
Type HELP COLOR to see a number of useful colormaps.
COLORMAP is an M-file that sets the Colormap property of the current
See also COLOR1CPJDFM, HSV , CAXIS , SPINMAP , BRIGHTEN , RGBPLOT , FIGURE .