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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from vtkmodules.vtkCommonColor import vtkNamedColors
from vtkmodules.vtkFiltersCore import vtkGlyph3D
from vtkmodules.vtkFiltersSources import (
vtkConeSource,
vtkSphereSource,
)
from vtkmodules.vtkRenderingCore import (
vtkPolyDataMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
from vtkmodules.vtkRenderingLOD import vtkLODActor
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
import vtkmodules.test.Testing
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
class StyleBaseSpike(object):
class Colors(object):
'''
Provides some wrappers for using color names.
'''
def __init__(self):
'''
Define a single instance of the NamedColors class here.
'''
self.namedColors = vtkNamedColors()
def GetRGBColor(self, colorName):
'''
Return the red, green and blue components for a
color as doubles.
'''
rgb = [0.0, 0.0, 0.0] # black
self.namedColors.GetColorRGB(colorName, rgb)
return rgb
def GetRGBAColor(self, colorName):
'''
Return the red, green, blue and alpha
components for a color as doubles.
'''
rgba = [0.0, 0.0, 0.0, 1.0] # black
self.namedColors.GetColor(colorName, rgba)
return rgba
def __init__(self, ren, renWin, iren):
self.ren = ren
self.renWin = renWin
self.iren = iren
colors = self.Colors()
self.renWin.AddRenderer(self.ren)
self.iren.SetRenderWindow(self.renWin)
self.iren.SetDesiredUpdateRate(.00001)
# Create a sphere source and actor
sphere = vtkSphereSource()
sphereMapper = vtkPolyDataMapper()
sphereMapper.SetInputConnection(sphere.GetOutputPort())
sphereActor = vtkLODActor()
sphereActor.SetMapper(sphereMapper)
sphereActor.GetProperty().SetDiffuseColor(colors.GetRGBColor('banana'))
sphereActor.GetProperty().SetSpecular(.4)
sphereActor.GetProperty().SetSpecularPower(20)
# Create the spikes using a cone source and the sphere source
cone = vtkConeSource()
cone.SetResolution(20)
glyph = vtkGlyph3D()
glyph.SetInputConnection(sphere.GetOutputPort())
glyph.SetSourceConnection(cone.GetOutputPort())
glyph.SetVectorModeToUseNormal()
glyph.SetScaleModeToScaleByVector()
glyph.SetScaleFactor(0.25)
spikeMapper = vtkPolyDataMapper()
spikeMapper.SetInputConnection(glyph.GetOutputPort())
spikeActor = vtkLODActor()
spikeActor.SetMapper(spikeMapper)
spikeActor.GetProperty().SetDiffuseColor(colors.GetRGBColor('tomato'))
spikeActor.GetProperty().SetSpecular(.4)
spikeActor.GetProperty().SetSpecularPower(20)
# Add the actors to the renderer, set the background and size
self.ren.AddActor(sphereActor)
self.ren.AddActor(spikeActor)
self.ren.SetBackground(0.1, 0.2, 0.4)
self.renWin.SetSize(300, 300)
# Render the image
self.ren.ResetCamera()
cam1 = ren.GetActiveCamera()
cam1.Zoom(1.4)
cam1.Azimuth(30)
cam1.Elevation(30)
self.renWin.Render()
class TestStyleBaseSpike(vtkmodules.test.Testing.vtkTest):
def testStyleBaseSpike(self):
ren = vtkRenderer()
renWin = vtkRenderWindow()
iRen = vtkRenderWindowInteractor()
styleBaseSpike = StyleBaseSpike(ren, renWin, iRen)
# render and interact with data
renWin.Render()
img_file = "TestStyleBaseSpike.png"
vtkmodules.test.Testing.compareImage(iRen.GetRenderWindow(), vtkmodules.test.Testing.getAbsImagePath(img_file))
vtkmodules.test.Testing.interact()
if __name__ == "__main__":
vtkmodules.test.Testing.main([(TestStyleBaseSpike, 'test')])
|
