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
|
#!/usr/bin/env python
from vtkmodules.vtkCommonColor import vtkNamedColors
from vtkmodules.vtkCommonCore import vtkPoints
from vtkmodules.vtkCommonDataModel import (
vtkCellArray,
vtkPolyData,
)
from vtkmodules.vtkFiltersCore import vtkQuadricClustering
from vtkmodules.vtkFiltersSources import vtkSphereSource
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkPolyDataMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
def GetRGBColor(colorName):
'''
Return the red, green and blue components for a
color as doubles.
'''
rgb = [0.0, 0.0, 0.0] # black
vtkNamedColors().GetColorRGB(colorName, rgb)
return rgb
# Generate implicit model of a sphere
#
ren1 = vtkRenderer()
renWin = vtkRenderWindow()
renWin.AddRenderer(ren1)
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# pipeline stuff
#
sphere = vtkSphereSource()
sphere.SetPhiResolution(150)
sphere.SetThetaResolution(150)
pts = vtkPoints()
pts.InsertNextPoint(0, 0, 0)
pts.InsertNextPoint(1, 0, 0)
pts.InsertNextPoint(0, 1, 0)
pts.InsertNextPoint(0, 0, 1)
tris = vtkCellArray()
tris.InsertNextCell(3)
tris.InsertCellPoint(0)
tris.InsertCellPoint(1)
tris.InsertCellPoint(2)
tris.InsertNextCell(3)
tris.InsertCellPoint(0)
tris.InsertCellPoint(2)
tris.InsertCellPoint(3)
tris.InsertNextCell(3)
tris.InsertCellPoint(0)
tris.InsertCellPoint(3)
tris.InsertCellPoint(1)
tris.InsertNextCell(3)
tris.InsertCellPoint(1)
tris.InsertCellPoint(2)
tris.InsertCellPoint(3)
polys = vtkPolyData()
polys.SetPoints(pts)
polys.SetPolys(tris)
mesh = vtkQuadricClustering()
mesh.SetInputConnection(sphere.GetOutputPort())
mesh.SetNumberOfXDivisions(10)
mesh.SetNumberOfYDivisions(10)
mesh.SetNumberOfZDivisions(10)
mapper = vtkPolyDataMapper()
mapper.SetInputConnection(mesh.GetOutputPort())
actor = vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetDiffuseColor(GetRGBColor('tomato'))
actor.GetProperty().SetDiffuse(.8)
actor.GetProperty().SetSpecular(.4)
actor.GetProperty().SetSpecularPower(30)
# Add the actors to the renderer, set the background and size
#
ren1.AddActor(actor)
ren1.SetBackground(1, 1, 1)
renWin.SetSize(300, 300)
iren.Initialize()
#iren.Start()
|
