记忆力差的孩子得勤做笔记!
刚接触python,最近又需要画一个三维图,然后就找了一大堆资料,看的人头昏脑胀的,今天终于解决了!好了,废话不多说,直接上代码!
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#由三个一维坐标画三维散点
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#coding:utf-8
import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d.axes3d import Axes3D
x = []
y = []
z = []
f = open ( "data\\record.txt" )
line = f.readline()
while line:
c,d,e = line.split()
x.append(c)
y.append(d)
z.append(e)
line = f.readline()
f.close()
#string型转int型
x = [ int ( x ) for x in x if x ]
y = [ int ( y ) for y in y if y ]
z = [ int ( z ) for z in z if z ]
print x
fig = plt.figure()
ax = Axes3D(fig)
ax.scatter3D(x, y, z)
ax.set_xlabel( 'x' )
ax.set_ylabel( 'y' )
ax.set_zlabel( 'z' )
plt.show()
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最关键的步骤就是那个string类型转int类型,之前缺了这一步,死活的报错,好了,终于搞定!
#画三维线
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#
coding: utf - 8
from mpl_toolkits.mplot3d
import axes3d
import matplotlib.pyplot as plt
x = []
y = []
z = []
f = open ( "data\\record.txt" )
line = f.readline()
while line:
c, d, e = line.split()
x.append(c)
y.append(d)
z.append(e)
line = f.readline()
f.close()
# string型转int型
x = [ int (x) for x in x
if x
]
y = [ int (y) for y in y
if y
]
z = [ int (z) for z in z
if z
]
# print x
fig = plt.figure()
ax = fig.gca(projection = '3d' )
ax.plot(x, y, z)
ax.set_xlabel( 'x' )
ax.set_ylabel( 'y' )
ax.set_zlabel( 'z' )
plt.show()
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总结
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原文链接:http://blog.csdn.net/sinat_31425585/article/details/52351224