Dec 16, 2015 · I was wondering if there is a function call that can give me the name of all colormaps available in matplotlib? It used to be possible by something along the lines of (see here): import …

The Matplotlib colormaps accept an argument (0..1, scalar or array) which you use to get colors from a colormap. For example:

How does one set the color of a line in matplotlib with scalar values provided at run time using a colormap (say jet)? I tried a couple of different approaches here and I think I'm stumped. values[...

Jul 16, 2013 · Colormaps You can change the colormap by adding import matplotlib.cm as cm plt.scatter(x, y, c=t, cmap=cm.cmap_name) Importing matplotlib.cm is optional as you can call …

I have the following problem, I want to create my own colormap (red-mix-violet-mix-blue) that maps to values between -2 and +2 and want to use it to color points in my plot. The plot should then ha...

Mar 9, 2017 · This answer appears to be about avoid colour cycling in the index. I know how to use colormaps to avoid this but want to algorithmically produce a set of colours that can actually be easily …

Apr 28, 2020 · I am an advocate of using perceptually uniform colormaps when plotting scientific data as grayscale images and applying false colorings. I don't know who invented these, but these colormaps …

5 With matplotlib version 3.4 or later, the perhaps simplest solution is to use the new CenteredNorm. Example using CenteredNorm and one of the diverging colormaps:

As of matplotlib version 3.0 there are built-in cyclic perceptually uniform colormaps. OK, just the one colormap for the time being, but with two choices of start and end along the cycle, namely twilight …

Sep 20, 2013 · Instead, use the 5 proper colormaps in matplotlib or the colormaps provided by cmocean or my CMasher. EDIT: In the latest version of CMasher, one can also use this same function to …