Python Matplotlib Colormap

Question

I use the colormap \"jet\" to plot my graphics. But, I would like to have the lower values in white color and this colormap goes from blue to red colors. I also don\'t want

Answer 1

There's pretty much this example on the colormaps page. Digging through the matplotlib source on my machine, jet is defined as (in _cm.py):

_jet_data =   {'red':   ((0., 0, 0), (0.35, 0, 0), (0.66, 1, 1), (0.89,1, 1),
                         (1, 0.5, 0.5)),
               'green': ((0., 0, 0), (0.125,0, 0), (0.375,1, 1), (0.64,1, 1),
                         (0.91,0,0), (1, 0, 0)),
               'blue':  ((0., 0.5, 0.5), (0.11, 1, 1), (0.34, 1, 1), (0.65,0, 0),
                         (1, 0, 0))}