Matplotlib Colormap przezroczysty biały do czarnego
c_white = matplotlib.colors.colorConverter.to_rgba('white',alpha = 0)
c_black= matplotlib.colors.colorConverter.to_rgba('black',alpha = 1)
cmap_rb = matplotlib.colors.LinearSegmentedColormap.from_list('rb_cmap',[c_white,c_black],512)
pl = plt.pcolor(mp1,cmap=cmap_rb)
Careful Cassowary