gpt4 book ai didi

python绘制立方体的方法

转载 作者:qq735679552 更新时间:2022-09-27 22:32:09 27 4
gpt4 key购买 nike

CFSDN坚持开源创造价值,我们致力于搭建一个资源共享平台,让每一个IT人在这里找到属于你的精彩世界.

这篇CFSDN的博客文章python绘制立方体的方法由作者收集整理,如果你对这篇文章有兴趣,记得点赞哟.

本文实例为大家分享了python绘制立方体的具体代码,供大家参考,具体内容如下 。

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
#!/usr/bin/env python
 
# This is (almost) a direct C++ to Python transliteration of
# <VTK-root>/Examples/DataManipulation/Cxx/Cube.cxx from the VTK
# source distribution, which "shows how to manually create vtkPolyData"
#
# A convenience function, mkVtkIdList(), has been added and one if/else
# so the example also works in version 6 or later.
#
# Lines like `obj->Delete()` have been transliterated as `del obj` to,
# preserve the resemblance to the original C++ example, although I
# doubt this achieves anything beyond what Python's garbage collection
# would do anyway.
 
import vtk
 
# Makes a vtkIdList from a Python iterable. I'm kinda surprised that
# this is necessary, since I assumed that this kind of thing would
# have been built into the wrapper and happen transparently, but it
# seems not.
 
 
def mkVtkIdList(it):
  vil = vtk.vtkIdList()
  for i in it:
   vil.InsertNextId( int (i))
  return vil
 
# 绘制通用方法
def myShow(cube):
  # Now we'll look at it.
  cubeMapper = vtk.vtkPolyDataMapper()
  if vtk.VTK_MAJOR_VERSION < = 5 :
   cubeMapper.SetInput(cube)
  else :
   cubeMapper.SetInputData(cube)
  cubeMapper.SetScalarRange( 0 , 7 )
  cubeActor = vtk.vtkActor()
  cubeActor.SetMapper(cubeMapper)
 
  # The usual rendering stuff.
  camera = vtk.vtkCamera()
  camera.SetPosition( 1 , 1 , 1 )
  camera.SetFocalPoint( 0 , 0 , 0 )
 
  renderer = vtk.vtkRenderer()
  renWin = vtk.vtkRenderWindow()
  renWin.AddRenderer(renderer)
 
  iren = vtk.vtkRenderWindowInteractor()
  iren.SetRenderWindow(renWin)
 
  renderer.AddActor(cubeActor)
  renderer.SetActiveCamera(camera)
  renderer.ResetCamera()
  renderer.SetBackground( 0 , 0 , 0 )
 
  renWin.SetSize( 300 , 300 )
 
  # interact with data
  renWin.Render()
  iren.Start()
  del cubeMapper
  del cubeActor
  del camera
  del renderer
  del renWin
  del iren
 
def main():
  # x = array of 8 3-tuples of float representing the vertices of a cube:
  # 8个三维值代表长方体的8个顶点
  x = [( 0.0 , 0.0 , 0.0 ), ( 1.0 , 0.0 , 0.0 ), ( 1.0 , 1.0 , 0.0 ), ( 0.0 , 1.0 , 0.0 ),
    ( 0.0 , 0.0 , 1.0 ), ( 1.0 , 0.0 , 1.0 ), ( 1.0 , 1.0 , 1.0 ), ( 0.0 , 1.0 , 1.0 )]
 
  # pts = array of 6 4-tuples of vtkIdType (int) representing the faces
  #  of the cube in terms of the above vertices
  # 点的编号0-7,每个面由4个点组成
  pts = [( 0 , 1 , 2 , 3 ), ( 4 , 5 , 6 , 7 ), ( 0 , 1 , 5 , 4 ),
    ( 1 , 2 , 6 , 5 ), ( 2 , 3 , 7 , 6 ), ( 3 , 0 , 4 , 7 )]
 
  # We'll create the building blocks of polydata including data attributes.
  cube = vtk.vtkPolyData()
  points = vtk.vtkPoints()
  polys = vtk.vtkCellArray()
  scalars = vtk.vtkFloatArray()
 
  # Load the point, cell, and data attributes.
  for i in range ( 8 ):
   points.InsertPoint(i, x[i])
  for i in range ( 6 ):
   polys.InsertNextCell(mkVtkIdList(pts[i]))
  for i in range ( 8 ):
   scalars.InsertTuple1(i, i)
 
  # We now assign the pieces to the vtkPolyData.
  cube.SetPoints(points)
  del points
  cube.SetPolys(polys)
  del polys
  cube.GetPointData().SetScalars(scalars)
  del scalars
 
  myShow(cube)
  # Clean up
  del cube
 
main()

效果图:

python绘制立方体的方法

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我.

原文链接:https://blog.csdn.net/genispan/article/details/79583193 。

最后此篇关于python绘制立方体的方法的文章就讲到这里了,如果你想了解更多关于python绘制立方体的方法的内容请搜索CFSDN的文章或继续浏览相关文章,希望大家以后支持我的博客! 。

27 4 0
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com