-
Notifications
You must be signed in to change notification settings - Fork 0
/
assignment1.py
222 lines (176 loc) · 6.26 KB
/
assignment1.py
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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
import os
import sys
import vtk
import Tkinter
from vtk.tk.vtkTkRenderWindowInteractor import vtkTkRenderWindowInteractor
class IsoSurfaceConfiguration:
def __init__(self, isoValue):
self.isoValue = isoValue;
#Set default color
self.color = { 'r' : 1, 'g':1, 'b':1}
#Set default opacity
self.opacity = 1.0
def setColorR(self,color):
print "setting red"
print
self.color['r'] = color
def setColorG(self,color):
print "setting green"
print
self.color['g'] = color
def setColorB(self,color):
print "setting blue"
print
self.color['b'] = color
def getColorR(self):
#print "Red: " + str(self.color['r'])
return self.color['r']
def getColorG(self):
return self.color['g']
def getColorB(self):
return self.color['b']
def setOpacity(self,opacity):
self.opacity = opacity
def getOpacity(self):
return self.opacity
def setIsoValue(self,isoValue):
self.isoValue = isoValue
def getIsoValue(self):
return self.isoValue
class VisualizationApp:
def __init__(self, fileName, root):
self.reader = self.createReader(fileName)
self.root = root
def createReader(self,fileName):
#I dont care about different types of readers for now
#If i get a different file then i can mod reader here or something
reader = vtk.vtkStructuredPointsReader()
reader.SetFileName(fileName)
reader.ReadAllVectorsOn()
reader.ReadAllScalarsOn()
reader.Update()
self.determineCenterForCuttingPlane(reader)
return reader
def determineCenterForCuttingPlane(self,reader):
structuredPointData = reader.GetOutput()
self.center = structuredPointData.GetCenter()
def getFileHeader(self):
print self.reader.GetHeader()
def displayData(self):
geometryFilter = vtk.vtkImageDataGeometryFilter()
geometryFilter.SetInputConnection(self.reader.GetOutputPort())
geometryFilter.Update()
self.outputPortForMapper = geometryFilter.GetOutputPort()
self.createMapper(False)
self.createActor()
self.finalizePipeline()
def createIsoSurface(self,configuration):
marchingCube = vtk.vtkMarchingCubes()
marchingCube.SetInputConnection(self.reader.GetOutputPort())
marchingCube.SetValue(0,configuration.getIsoValue())
marchingCube.ComputeNormalsOn()
self.outputPortForMapper = marchingCube.GetOutputPort()
self.createMapper()
self.createActor()
self.modifyActorIso(configuration)
self.finalizePipeline()
def createCuttingPlane(self,normal,dimension):
cuttingPlane = vtk.vtkPlane()
#Set origin to the center of the data set so every slice makes contact
cuttingPlane.SetOrigin(float(self.center[0]),float(self.center[1]),float(self.center[2]))
cuttingPlane.SetNormal(float(normal['x']), float(normal['y']), float(normal['z']))
self.cutter = self.createCutter(cuttingPlane)
self.outputPortForMapper = self.cutter.GetOutputPort()
self.createMapper(False)
self.createActor()
rotationDegrees = 45
self.modifyActorForCuttingPlane(rotationDegrees)
self.finalizePipeline()
def createCutter(self,cuttingPlane):
cutter = vtk.vtkCutter()
cutter.SetCutFunction(cuttingPlane)
cutter.SetInputConnection(self.reader.GetOutputPort())
cutter.Update()
return cutter
def volumeRender(self):
#Create transfer mapping scalar value to opacity
opacityTransferFunction = vtk.vtkPiecewiseFunction()
opacityTransferFunction.AddPoint(1, 0.0)
opacityTransferFunction.AddPoint(100, 0.1)
opacityTransferFunction.AddPoint(255,1.0)
colorTransferFunction = vtk.vtkColorTransferFunction()
colorTransferFunction.AddRGBPoint(0.0,0.0,0.0,0.0)
colorTransferFunction.AddRGBPoint(64.0,1.0,0.0,0.0)
colorTransferFunction.AddRGBPoint(128.0,0.0,0.0,1.0)
colorTransferFunction.AddRGBPoint(192.0,0.0,1.0,0.0)
colorTransferFunction.AddRGBPoint(255.0,0.0,0.2,0.0)
volumeProperty = vtk.vtkVolumeProperty()
volumeProperty.SetColor(colorTransferFunction)
volumeProperty.SetScalarOpacity(opacityTransferFunction)
volumeProperty.ShadeOn()
volumeProperty.SetInterpolationTypeToLinear()
compositeFunction = vtk.vtkVolumeRayCastCompositeFunction()
volumeMapper = vtk.vtkFixedPointVolumeRayCastMapper()
volumeMapper.SetInputConnection(self.reader.GetOutputPort())
volume = vtk.vtkVolume()
volume.SetMapper(volumeMapper)
volume.SetProperty(volumeProperty)
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
iren = vtkTkRenderWindowInteractor(self.root, rw=renWin, width=640, height=480)
iren.Initialize()
ren.AddVolume(volume)
ren.SetBackground(1,1,1)
renWin.Render()
def createMapper(self,turnOffScalarVisibilty=True):
self.mapper = vtk.vtkPolyDataMapper()
self.mapper.SetInputConnection(self.outputPortForMapper)
if turnOffScalarVisibilty:
self.mapper.ScalarVisibilityOff()
self.mapper.Update()
def createActor(self):
self.actor = vtk.vtkActor()
self.actor.SetMapper(self.mapper)
def modifyActorIso(self,configuration):
self.actor.GetProperty().SetColor(float(configuration.getColorR()), float(configuration.getColorG()),float(configuration.getColorB()))
self.actor.GetProperty().SetOpacity(float(configuration.getOpacity()))
def modifyActorForCuttingPlane(self, rotationDegrees):
self.actor.RotateY(rotationDegrees)
def finalizePipeline(self):
self.createRenderWindow()
self.setupInteractor()
self.finalizeRenderer()
self.start()
def createRenderWindow(self):
#create render window and interactor
self.ren = vtk.vtkRenderer()
self.renWin = vtk.vtkRenderWindow()
self.renWin.AddRenderer(self.ren)
self.renWin.PolygonSmoothingOn()
def setupInteractor(self,changeStyle=True):
#Setup interactor
self.iren = vtk.vtkTkRenderWindowInteractor()
self.iren.SetRenderWindow(self.renWin)
if changeStyle:
style = vtk.vtkInteractorStyleTrackballCamera()
self.iren.SetInteractorStyle(style)
def finalizeRenderer(self):
#Add actor to renderer
self.ren.SetBackground(0.329412, 0.34902, 0.427451) #paraview blue from tutorial
self.ren.AddActor(self.actor)
def start(self):
#Init the interactor and render Start the interactor
self.iren.Initialize()
self.renWin.Render()
self.iren.Start()
def main():
root = Tkinter.Tk()
root.title=("Kevin Kenyon Vis App")
frame = Tkinter.Frame(root)
frame.pack(fill=Tkinter.BOTH, expand=1, side=Tkinter.TOP)
app = VisualizationApp("heart.vtk", root)
app.volumeRender()
root.mainLoop()
if __name__ == "__main__":
main()