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IDProjectCategoryView StatusDate SubmittedLast Update
0003579VTK(No Category)public2006-08-03 11:102016-08-12 09:54
ReporterMathieu Malaterre 
Assigned ToDave DeMarle 
PrioritylowSeverityminorReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Summary0003579: vtkLookupTable + vtkStructuredPointsWriter
DescriptionHi all,

    In case someone already knows the answer I am posting this. Anyway here
is a python script(*) that reproduce the bug. The faulty line is:

    writer.SetFileTypeToBinary()

if a vtkImageData is saved with a vtkLookupTable in binary mode
everything is ok, but when saved as ASCII then the LUT can't be reread
properly. I'll try to find a patch ASAP.

    BTW, does anyone knows why I should explicitely set the TableRange ?

    lut.SetTableRange( 0, 255)

Thanks,
mathieu

##################################################
(*)
import vtk
from vtk.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()

reader = vtk.vtkBMPReader()
reader.SetFileName( VTK_DATA_ROOT + '/Data/masonry.bmp' )
reader.Allow8BitBMPOn ()
reader.Update()

#construct an image data with a lookup table
image = reader.GetOutput()
image.GetPointData().GetScalars().SetLookupTable( reader.GetLookupTable() )

writer = vtk.vtkStructuredPointsWriter()
writer.SetInput( image )
writer.SetFileName( 'demolut.vtk' )
#writer.SetFileTypeToBinary() #culprit !!!
writer.Write()

reader2 = vtk.vtkStructuredPointsReader()
reader2.SetFileName( 'demolut.vtk' )
reader2.UpdateWholeExtent()

lut = reader2.GetOutput().GetPointData().GetScalars().GetLookupTable()
lut.SetTableRange( 0, 255) #trick ??

map2 = vtk.vtkImageMapToColors ()
map2.SetInput (reader2.GetOutput())
map2.SetLookupTable ( lut )
map2.SetOutputFormatToRGB()

iren = vtk.vtkRenderWindowInteractor();

viewer = vtk.vtkImageViewer2()
viewer.SetInput (map2.GetOutput())
viewer.SetupInteractor (iren)

#make interface
iren.Initialize()
iren.Start()
##################################################
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  Notes
(0030955)
Jean-Christophe Fillion-Robin (manager)
2013-06-05 17:57

 Does the problem still occur with VTK 5.10 ? VTK 6 ?
(0030964)
Mathieu Malaterre (developer)
2013-06-06 02:51

 Steps still reproduce error here. What did you do on your side to avoid the issue ?
(0031223)
Dave DeMarle (administrator)
2013-07-22 19:21

 If the bug persists in 6.0.0, please reopen.
(0036882)
Kitware Robot (administrator)
2016-08-12 09:54

 Resolving issue as `moved`.

This issue tracker is no longer used. Further discussion of this issue may take place in the current VTK Issues page linked in the banner at the top of this page.

 Issue History
Date Modified Username Field Change
2008-11-30 09:09 Mathieu Malaterre Assigned To Mathieu Malaterre => David Cole
2011-01-19 09:54 David Cole Assigned To David Cole =>
2011-06-16 13:11 Zack Galbreath Category => (No Category)
2013-06-05 17:57 Jean-Christophe Fillion-Robin Note Added: 0030955
2013-06-06 02:51 Mathieu Malaterre Note Added: 0030964
2013-07-22 19:21 Dave DeMarle Note Added: 0031223
2013-07-22 19:21 Dave DeMarle Status backlog => expired
2013-07-22 19:21 Dave DeMarle Assigned To => Dave DeMarle
2016-08-12 09:54 Kitware Robot Note Added: 0036882
2016-08-12 09:54 Kitware Robot Status expired => closed
2016-08-12 09:54 Kitware Robot Resolution open => moved

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