Matplotlib.pyplot.tricontourf() in Python (original) (raw)

import matplotlib.pyplot as plt

import matplotlib.tri as mtri

import numpy as np

x = np.asarray([ 0 , 1 , 0 , 3 , 0.5 , 1.5 ,

`` 2.5 , 1 , 2 , 1.5 ])

y = np.asarray([ 0 , 0 , 0 , 0 , 1.0 , 1.0 ,

`` 1.0 , 2 , 2 , 3.0 ])

triangles = [[ 0 , 1 , 4 ], [ 1 , 5 , 4 ], [ 2 , 6 , 5 ],

`` [ 4 , 5 , 7 ], [ 5 , 6 , 8 ], [ 5 , 8 , 7 ],

`` [ 7 , 8 , 9 ], [ 1 , 2 , 5 ], [ 2 , 3 , 6 ]]

triang = mtri.Triangulation(x, y, triangles)

z = np.cos( 2.5 * x * x) + np.sin( 2.5 * x * x)

t = plt.tricontourf(triang, z)

plt.title( 'matplotlib.pyplot.tricontourf() Example\n' ,

`` fontsize = 14 , fontweight = 'bold' )

plt.show()