SHOWCMAP

Purpose:

Displays the current colormap as a density plot.

SHOWCMAP(series, len)

series	-	Optional. A series with a colormap, the source colormap. Defaults to the current colormap.
len	-	Optional. An integer, the colormap length. Defaults to the length of the current colormap.

A table of values graded from 0 to 255 displayed as an image. If a series is specified, the Y values of the colormap is scaled to the series.

setcolormap(rainbow);

showcmap

$image\showcmappic.gif$

sets the colormap to colors ranging from blue to red and displays the colors as a density plot.

W1: spline2(ravel(gnorm(100, 1), 10), 3)

W2: showcmap(w1)

Shows the colormap in W2 scaled to the Z values of W1.

Use SETSHADING to make a new colormap take effect on an existing density plot.