Python画3D心形

发布时间：2019-09-23 17:02:02编辑：auto阅读（4497）

    Python 画3D心形图

    原文

    因为需要再打印中文，再原代码上做了修改，引入了字体文件。

    • 代码
    #coding=utf-8
#3D心形 
from mpl_toolkits.mplot3d import Axes3D
from matplotlib import cm
from matplotlib.ticker import LinearLocator, FormatStrFormatter
import matplotlib.pyplot as plt
import numpy as np
import matplotlib

#设置字体
myfont = matplotlib.font_manager.FontProperties(fname="SIMLI.TTF")#SIMLI.TTF与.py在同一目录下 字体文件库Windows一堆
matplotlib.rcParams['axes.unicode_minus'] = False

def heart_3d(x,y,z):
 return (x**2+(9/4)*y**2+z**2-1)**3-x**2*z**3-(9/80)*y**2*z**3


def plot_implicit(fn, bbox=(-1.5, 1.5)):
 xmin, xmax, ymin, ymax, zmin, zmax = bbox*3
 fig = plt.figure()
 ax = fig.add_subplot(111, projection='3d')
 A = np.linspace(xmin, xmax, 100) # resolution of the contour
 B = np.linspace(xmin, xmax, 40) # number of slices
 A1, A2 = np.meshgrid(A, A) # grid on which the contour is plotted

 for z in B: # plot contours in the XY plane
  X, Y = A1, A2
  Z = fn(X, Y, z)
  cset = ax.contour(X, Y, Z+z, [z], zdir='z', colors=('r',))
  # [z] defines the only level to plot
  # for this contour for this value of z

 for y in B: # plot contours in the XZ plane
  X, Z = A1, A2
  Y = fn(X, y, Z)
  cset = ax.contour(X, Y+y, Z, [y], zdir='y', colors=('red',))

 for x in B: # plot contours in the YZ plane
  Y, Z = A1, A2
  X = fn(x, Y, Z)
  cset = ax.contour(X+x, Y, Z, [x], zdir='x',colors=('red',))

 # must set plot limits because the contour will likely extend
 # way beyond the displayed level. Otherwise matplotlib extends the plot limits
 # to encompass all values in the contour.
 ax.set_zlim3d(zmin, zmax)
 ax.set_xlim3d(xmin, xmax)
 ax.set_ylim3d(ymin, ymax)
 #标题
 plt.title(u"这是一个标题",fontproperties=myfont)
 #取消坐标轴显示
 plt.axis('off')
 plt.show()

if __name__ == '__main__':
 plot_implicit(heart_3d)

    最后效果

    End

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