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Volume initial values #32

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e5ac861
Fixed MIP independent shader
aashish24 Feb 2, 2015
be1fb36
Fixed independent component computing for min intensity projection
aashish24 Feb 2, 2015
ad3c6b0
Merge remote-tracking branch 'origin/more_independent_components' int…
aashish24 Feb 2, 2015
6e2d8d5
Do not assume initial min and max values
aashish24 Feb 2, 2015
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1 change: 1 addition & 0 deletions Rendering/Volume/Testing/Data/Baseline/TestGPURayCastIndependentComponentMIP.png.md5
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c5c09772ee4f6e5e18bdb3d41657cb70
1 change: 1 addition & 0 deletions Rendering/Volume/Testing/Data/Baseline/TestGPURayCastIndependentComponentMinIP.png.md5
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787ac19c55b11c28cb0249fee76acc8d
2 changes: 2 additions & 0 deletions Rendering/Volume/Testing/Python/CMakeLists.txt
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Expand Up @@ -12,6 +12,8 @@ set (GenericVolumePythonTests
VolumePickerCrop.py
VolumePicker.py,NO_RT
TestGPURayCastIndependentComponent.py,NO_RT
TestGPURayCastIndependentComponentMIP.py,NO_RT
TestGPURayCastIndependentComponentMinIP.py,NO_RT
)

# These tests are only built when the rendering backend is OpenGL
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122 changes: 122 additions & 0 deletions Rendering/Volume/Testing/Python/TestGPURayCastIndependentComponentMIP.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-

'''
=========================================================================

Program: Visualization Toolkit
Module: TestGPURayCastIndependentComponentMIP.py

Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.

=========================================================================
'''

import sys
import vtk
import vtk.test.Testing
from vtk.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()

'''
Prevent .pyc files from being created.
Stops the vtk source being polluted
by .pyc files.
'''
sys.dont_write_bytecode = True

class TestGPURayCastIndependentComponentMIP(vtk.test.Testing.vtkTest):

def test(self):
dataRoot = vtkGetDataRoot()
reader = vtk.vtkXMLImageDataReader()
reader.SetFileName("" + str(dataRoot) + "/Data/vase_4comp.vti")

volume = vtk.vtkVolume()
#mapper = vtk.vtkFixedPointVolumeRayCastMapper()
mapper = vtk.vtkGPUVolumeRayCastMapper()
mapper.SetBlendModeToMaximumIntensity();
mapper.SetSampleDistance(0.1)
mapper.SetAutoAdjustSampleDistances(0)
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
iRen = vtk.vtkRenderWindowInteractor()

# Set connections
mapper.SetInputConnection(reader.GetOutputPort());
volume.SetMapper(mapper)
ren.AddViewProp(volume)
renWin.AddRenderer(ren)
iRen.SetRenderWindow(renWin)

# Define opacity transfer function and color functions
opacityFunc1 = vtk.vtkPiecewiseFunction()
opacityFunc1.AddPoint(0.0, 0.0);
opacityFunc1.AddPoint(60.0, 0.1);
opacityFunc1.AddPoint(255.0, 0.0);

opacityFunc2 = vtk.vtkPiecewiseFunction()
opacityFunc2.AddPoint(0.0, 0.0);
opacityFunc2.AddPoint(60.0, 0.0);
opacityFunc2.AddPoint(120.0, 0.1);
opacityFunc1.AddPoint(255.0, 0.0);

opacityFunc3 = vtk.vtkPiecewiseFunction()
opacityFunc3.AddPoint(0.0, 0.0);
opacityFunc3.AddPoint(120.0, 0.0);
opacityFunc3.AddPoint(180.0, 0.1);
opacityFunc3.AddPoint(255.0, 0.0);

opacityFunc4 = vtk.vtkPiecewiseFunction()
opacityFunc4.AddPoint(0.0, 0.0);
opacityFunc4.AddPoint(180.0, 0.0);
opacityFunc4.AddPoint(255.0, 0.1);

# Color transfer functions
color1 = vtk.vtkColorTransferFunction()
color1.AddRGBPoint(0.0, 1.0, 0.0, 0.0);
color1.AddRGBPoint(60.0, 1.0, 0.0, 0.0);

color2 = vtk.vtkColorTransferFunction()
color2.AddRGBPoint(60.0, 0.0, 0.0, 1.0);
color2.AddRGBPoint(120.0, 0.0, 0.0, 1.0);

color3 = vtk.vtkColorTransferFunction()
color3.AddRGBPoint(120.0, 0.0, 1.0, 0.0);
color3.AddRGBPoint(180.0, 0.0, 1.0, 0.0);

color4 = vtk.vtkColorTransferFunction()
color4.AddRGBPoint(180.0, 0.0, 0.0, 0.0);
color4.AddRGBPoint(239.0, 0.0, 0.0, 0.0);

# Now set the opacity and the color
volumeProperty = volume.GetProperty()
volumeProperty.SetIndependentComponents(1)
volumeProperty.SetScalarOpacity(0, opacityFunc1)
volumeProperty.SetScalarOpacity(1, opacityFunc2)
volumeProperty.SetScalarOpacity(2, opacityFunc3)
volumeProperty.SetScalarOpacity(3, opacityFunc4)
volumeProperty.SetColor(0, color1)
volumeProperty.SetColor(1, color2)
volumeProperty.SetColor(2, color3)
volumeProperty.SetColor(3, color4)

iRen.Initialize();
ren.SetBackground(0.1,0.4,0.2)
ren.ResetCamera()
renWin.Render()

img_file = "TestGPURayCastIndependentComponentMIP.png"
vtk.test.Testing.compareImage(
iRen.GetRenderWindow(), vtk.test.Testing.getAbsImagePath(img_file), threshold=10)
vtk.test.Testing.interact()
#iRen.Start()

if __name__ == "__main__":
vtk.test.Testing.main([(TestGPURayCastIndependentComponentMIP, 'test')])
122 changes: 122 additions & 0 deletions Rendering/Volume/Testing/Python/TestGPURayCastIndependentComponentMinIP.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-

'''
=========================================================================

Program: Visualization Toolkit
Module: TestGPURayCastIndependentComponentMinIP.py

Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.

=========================================================================
'''

import sys
import vtk
import vtk.test.Testing
from vtk.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()

'''
Prevent .pyc files from being created.
Stops the vtk source being polluted
by .pyc files.
'''
sys.dont_write_bytecode = True

class TestGPURayCastIndependentComponentMinIP(vtk.test.Testing.vtkTest):

def test(self):
dataRoot = vtkGetDataRoot()
reader = vtk.vtkXMLImageDataReader()
reader.SetFileName("" + str(dataRoot) + "/Data/vase_4comp.vti")

volume = vtk.vtkVolume()
#mapper = vtk.vtkFixedPointVolumeRayCastMapper()
mapper = vtk.vtkGPUVolumeRayCastMapper()
mapper.SetBlendModeToMinimumIntensity();
mapper.SetSampleDistance(0.1)
mapper.SetAutoAdjustSampleDistances(0)
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
iRen = vtk.vtkRenderWindowInteractor()

# Set connections
mapper.SetInputConnection(reader.GetOutputPort());
volume.SetMapper(mapper)
ren.AddViewProp(volume)
renWin.AddRenderer(ren)
iRen.SetRenderWindow(renWin)

# Define opacity transfer function and color functions
opacityFunc1 = vtk.vtkPiecewiseFunction()
opacityFunc1.AddPoint(0.0, 0.0);
opacityFunc1.AddPoint(60.0, 0.1);
opacityFunc1.AddPoint(255.0, 0.0);

opacityFunc2 = vtk.vtkPiecewiseFunction()
opacityFunc2.AddPoint(0.0, 0.1);
opacityFunc2.AddPoint(60.0, 0.0);
opacityFunc2.AddPoint(120.0, 0.0);
opacityFunc1.AddPoint(255.0, 0.0);

opacityFunc3 = vtk.vtkPiecewiseFunction()
opacityFunc3.AddPoint(0.0, 0.0);
opacityFunc3.AddPoint(120.0, 0.1);
opacityFunc3.AddPoint(180.0, 0.0);
opacityFunc3.AddPoint(255.0, 0.0);

opacityFunc4 = vtk.vtkPiecewiseFunction()
opacityFunc4.AddPoint(0.0, 0.0);
opacityFunc4.AddPoint(180.0, 0.1);
opacityFunc4.AddPoint(255.0, 0.0);

# Color transfer functions
color1 = vtk.vtkColorTransferFunction()
color1.AddRGBPoint(0.0, 1.0, 0.0, 0.0);
color1.AddRGBPoint(60.0, 1.0, 0.0, 0.0);

color2 = vtk.vtkColorTransferFunction()
color2.AddRGBPoint(60.0, 0.0, 0.0, 1.0);
color2.AddRGBPoint(120.0, 0.0, 0.0, 1.0);

color3 = vtk.vtkColorTransferFunction()
color3.AddRGBPoint(120.0, 0.0, 1.0, 0.0);
color3.AddRGBPoint(180.0, 0.0, 1.0, 0.0);

color4 = vtk.vtkColorTransferFunction()
color4.AddRGBPoint(180.0, 0.0, 0.0, 0.0);
color4.AddRGBPoint(239.0, 0.0, 0.0, 0.0);

# Now set the opacity and the color
volumeProperty = volume.GetProperty()
volumeProperty.SetIndependentComponents(1)
volumeProperty.SetScalarOpacity(0, opacityFunc1)
volumeProperty.SetScalarOpacity(1, opacityFunc2)
volumeProperty.SetScalarOpacity(2, opacityFunc3)
volumeProperty.SetScalarOpacity(3, opacityFunc4)
volumeProperty.SetColor(0, color1)
volumeProperty.SetColor(1, color2)
volumeProperty.SetColor(2, color3)
volumeProperty.SetColor(3, color4)

iRen.Initialize();
ren.SetBackground(0.1,0.4,0.2)
ren.ResetCamera()
renWin.Render()

img_file = "TestGPURayCastIndependentComponentMinIP.png"
vtk.test.Testing.compareImage(
iRen.GetRenderWindow(), vtk.test.Testing.getAbsImagePath(img_file), threshold=10)
vtk.test.Testing.interact()
#iRen.Start()

if __name__ == "__main__":
vtk.test.Testing.main([(TestGPURayCastIndependentComponentMinIP, 'test')])
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