IaGraph: Predefined Color Maps (
The following color maps are defined for this package. To use
them, just specify the color index in the
Index Description 0 Black-white linear. 1 Blue-white: Dark blue to white. 11 Blue-red 1: Dark to light blue, then light to dark red; blue is color indices 16-127, red is 128-239. 13 Rainbow (violet to red, 390-680 nm) 43 Red-white: Dark red to white. 53 Rainbow (red to violet, 680-390 nm) 99 CDAT default color map.
loadct without any arguments
prints a list of all color maps available to the package.
To see what a color map looks like, use the
command: the color table index is its only argument.
Thus, to see the rainbow color map, at the Python prompt just type:
plotct overwrites any previously
active VCS canvas.