3dshading.py

# -*- coding: utf-8 -*-
"""
Created on Mon Jul 30 18:00:41 2018

@author: ekambulow
"""

import numpy as np
#from mayavi import mlab
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
from matplotlib.colors import LightSource

## Test data: Matlab `peaks()`
x, y = np.mgrid[-3:3:150j,-3:3:150j]
z =  3*(1 - x)**2 * np.exp(-x**2 - (y + 1)**2) \
   - 10*(x/5 - x**3 - y**5)*np.exp(-x**2 - y**2) \
   - 1./3*np.exp(-(x + 1)**2 - y**2) 

## Mayavi
#surf = mlab.surf(x, y, z, colormap='RdYlBu', warp_scale='auto')
# Change the visualization parameters.
#surf.actor.property.interpolation = 'phong'
#surf.actor.property.specular = 0.1
#surf.actor.property.specular_power = 5



## Matplotlib
fig = plt.figure()
ax = fig.gca(projection='3d')

# Create light source object.
ls = LightSource(azdeg=0, altdeg=65)
# Shade data, creating an rgb array.
rgb = ls.shade(z, plt.cm.RdYlBu)
surf = ax.plot_surface(x, y, z, rstride=1, cstride=1, linewidth=0,
                       antialiased=False, facecolors=rgb)
plt.show()
#mlab.show()