Day 18 : Three Dimensional contour plots

#!/usr/bin/env python

# coding: utf-8

# # Three-Dimensional contour plots

# In[15]:

import numpy as np

import matplotlib.pyplot as plt

def f(x, y):

    return np.sin(np.sqrt(x ** 2 + y ** 2))

x = np.linspace(-6, 6, 30)

y = np.linspace(-6, 6, 30)

x, y = np.meshgrid(x, y)

z = f(x, y)              #clcoding.com

fig = plt.figure()

ax = plt.axes(projection='3d')

ax.contour3D(x,y,z,50, cmap='binary')

ax.set_xlabel('x')

ax.set_ylabel('y')

ax.set_zlabel('z')

plt.show()

fig = plt.figure()

ax = plt.axes(projection='3d')

ax.plot_wireframe(x,y,z, color='black')

ax.set_title('wireframe')

plt.show()

ax = plt.axes(projection='3d')

ax.plot_surface(x, y, z, rstride=1,

                cstride=1, cmap='viridis',

                edgecolor='none')

ax.set_title('surface')

plt.show()

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