Pyplot pcolormesh confused when alpha not 1

Question

I am having some difficulty with pyplot\'s awesome drawing abilities. I have selected my very own colormap

n = 6
map = matplotlib.cm.get_cmap(\'Dark2\')
cmap         


        

Answer 1

As a minor workaround in the meantime, I found you can get the image closer to what you want by messing with the edgecolor and linewidth attributes. For example, using the following input to pcolormesh:

    plt.pcolormesh(np.random.rand(10,10), cmap = cmapInv, edgecolor=(1.0, 1.0, 1.0, 0.3), linewidth=0.0015625)

outputs the following image: