Scilab Function

colormap - using colormaps

### Description

A colormap `cmap` is defined by a m x 3 matrix. m is the number of colors. Color number i is given as a 3-uple `cmap(i,1)`, `cmap(i,2)` `cmap(i,3)` corresponding respectively to red, green and blue intensity between 0 and 1.

At the beginning, 32 colors are defined in the colormap. You can change the colormap by using `xset("colormap",cmap)`.

Each color in the colormap has an id you have to use to specify color in most plot functions. To see the ids, use `xset()` or `xgetcolor()`.

You can come back to default colormap with `xset("default")`.

### Examples

    m=228;
    n= fix(3/8*m);
    r=[(1:n)'/n; ones(m-n,1)];
    g=[zeros(n,1); (1:n)'/n; ones(m-2*n,1)];
    b=[zeros(2*n,1); (1:m-2*n)'/(m-2*n)];
    h=[r g b];
    xset("colormap",h)
    plot3d1()
    xset("default")

### See Also

`addcolor` `getcolor` `xset`