Plot XYZ 3D View

#!/usr/bin/python

from mpl_toolkits.mplot3d import Axes3D

from matplotlib import cm

import matplotlib.pyplot as plt

from matplotlib.mlab import griddata

import numpy as np

fig = plt.figure()

ax = fig.gca(projection='3d')

data = np.genfromtxt('input.txt')

x = data[:,0]

y = data[:,1]

z = data[:,2]

xi = np.linspace(min(x), max(x))

yi = np.linspace(min(y), max(y))

X, Y = np.meshgrid(xi, yi)

Z = griddata(x, y, z, xi, yi)

surf = ax.plot_surface(X, Y, Z, rstride=1, cstride=1, cmap=cm.jet, linewidth=1, antialiased=True)

ax.set_zlim3d(np.min(Z), np.max(Z))

fig.colorbar(surf)

plt.show(