matplotlib example mpltricks (snippet)

Python matplotlib example 'mpltricks'

Functions in program:

• def truncate_colormap(cmap, minval=0.0, maxval=1.0, n=100):

Modules used in program:

• import matplotlib.pyplot as plt
• import matplotlib

python mpltricks

Python matplotlib example: mpltricks

import matplotlib
import matplotlib.pyplot as plt

def truncate_colormap(cmap, minval=0.0, maxval=1.0, n=100):
    """Clip the top and/or bottom off a colormap.

    Args:
      cmap (matplotlib.colors.ListedColormap): E.g. plt.cm.viridis
      minval (number): [0 - 1]. 'Bottom' of the colormap.
      maxval (number): [0 - 1]. 'Top' of the colormap.
      n (int): Sets how smooth the colormap will be. Higher is smoother.

    Notes:
      Taken from https://stackoverflow.com/questions/18926031
    """
    return matplotlib.colors.LinearSegmentedColormap.from_list(
        'trunc({n},{a:.2f},{b:.2f})'.format(
          n=cmap.name, a=minval, b=maxval), cmap(np.linspace(minval, maxval, n)))

Python links

• Learn Python: https://pythonbasics.org/
• Python Tutorial: https://pythonprogramminglanguage.com