.. _mplot3d-trisurf3d_demo: mplot3d example code: trisurf3d_demo.py ======================================= .. plot:: /home/tcaswell/other_source/matplotlib/doc/mpl_examples/mplot3d/trisurf3d_demo.py :: from mpl_toolkits.mplot3d import Axes3D from matplotlib import cm import matplotlib.pyplot as plt import numpy as np n_angles = 36 n_radii = 8 # An array of radii # Does not include radius r=0, this is to eliminate duplicate points radii = np.linspace(0.125, 1.0, n_radii) # An array of angles angles = np.linspace(0, 2*np.pi, n_angles, endpoint=False) # Repeat all angles for each radius angles = np.repeat(angles[...,np.newaxis], n_radii, axis=1) # Convert polar (radii, angles) coords to cartesian (x, y) coords # (0, 0) is added here. There are no duplicate points in the (x, y) plane x = np.append(0, (radii*np.cos(angles)).flatten()) y = np.append(0, (radii*np.sin(angles)).flatten()) # Pringle surface z = np.sin(-x*y) fig = plt.figure() ax = fig.gca(projection='3d') ax.plot_trisurf(x, y, z, cmap=cm.jet, linewidth=0.2) plt.show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)