## matplotlib-checkins

 SF.net SVN: matplotlib:[8198] trunk/matplotlib/examples/mplot3d/ surface3d_radial_demo.py From: - 2010-03-19 16:50:44 Revision: 8198 http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8198&view=rev Author: heeres Date: 2010-03-19 16:50:37 +0000 (Fri, 19 Mar 2010) Log Message: ----------- Add 3d surface plot example (radial coordinates) Added Paths: ----------- trunk/matplotlib/examples/mplot3d/surface3d_radial_demo.py Added: trunk/matplotlib/examples/mplot3d/surface3d_radial_demo.py =================================================================== --- trunk/matplotlib/examples/mplot3d/surface3d_radial_demo.py (rev 0) +++ trunk/matplotlib/examples/mplot3d/surface3d_radial_demo.py 2010-03-19 16:50:37 UTC (rev 8198) @@ -0,0 +1,27 @@ +# By Armin Moser + +from mpl_toolkits.mplot3d import Axes3D +import matplotlib +import numpy as np +from matplotlib import cm +from matplotlib import pyplot as plt +step = 0.04 +maxval = 1.0 +fig = plt.figure() +ax = Axes3D(fig) + +# create supporting points in polar coordinates +r = np.linspace(0,1.25,50) +p = np.linspace(0,2*np.pi,50) +R,P = np.meshgrid(r,p) +# transform them to cartesian system +X,Y = R*np.cos(P),R*np.sin(P) + +Z = ((R**2 - 1)**2) +ax.plot_surface(X, Y, Z, rstride=1, cstride=1, cmap=cm.jet) +ax.set_zlim3d(0, 1) +ax.set_xlabel(r'$\phi_\mathrm{real}$') +ax.set_ylabel(r'$\phi_\mathrm{im}$') +ax.set_zlabel(r'$V(\phi)$') +ax.set_xticks([]) +plt.show() This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.