Dear all,
I've been off-list for a few days. I'll look into this asap, in the meantime,
as a test, try setting the origin of the image to 0 0 0 and the extent from 0
to dim-1 in all directions. Then save the image and execute the vmtk script. I
suspect it's an extent related issue.
Keep in touch
Luca
On 06/giu/2012, at 16:51, "Dickerhoff, Benjamin R"
<benjamin-dickerh...@uiowa.edu> wrote:
> VMTK Users,
>
> With regards to the problem that I posted about trouble I was having with
> vmtkimagevoipainter, I have not figured out how to resolve this yet. I have
> figured out that the bounding box in the output has the same dimensions as
> the bounding box chosen as an input, however, its output location in the
> image set is offset towards the corner of the entire input VOI. Additionally,
> the output paint value does correspond to the input value specified using the
> option "-paintvalue".
>
> Ben Berkowitz helped me simplify the vmtkimagevoipainter script by writing
> the python script at the end of this email. It is intended to take in a vtk
> image file and the bounding coordinates (min and max for x, y, and z) for the
> region we wish to "paint". This script gives the same output as the
> vmtkimagevoipainter script. It seems that the
> vtkvmtk.vtkvmtkImageBoxPainter() script is reading in the input just fine,
> but can't process where to place the region to be painted in the output
> image. I'm not exactly sure where to go from here to help correct this. If
> anybody has any suggestions, I'd greatly appreciate your input.
>
> Thanks for your time,
> Ben Dickerhoff
>
> import vtk
> import sys
> import math
> from vmtk import vtkvmtk
> from vmtk import vmtkscripts
>
> file = sys.argv[1]
>
> reader = vmtkscripts.vmtkImageReader()
> reader.InputFileName = file
> reader.Execute()
>
> xmin = float(sys.argv[2])
> xmax = float(sys.argv[3])
> ymin = float(sys.argv[4])
> ymax = float(sys.argv[5])
> zmin = float(sys.argv[6])
> zmax = float(sys.argv[7])
>
> extents = [xmin, xmax, ymin, ymax, zmin, zmax]
>
> imageBoxPainter = vtkvmtk.vtkvmtkImageBoxPainter()
> imageBoxPainter.SetInput(reader.Image)
> imageBoxPainter.SetBoxExtent(extents)
> imageBoxPainter.SetBoxDefinitionToUseExtent()
> imageBoxPainter.SetPaintValue(10)
> imageBoxPainter.Update()
>
> writer = vmtkscripts.vmtkImageWriter()
> writer.Image = imageBoxPainter.GetOutput()
> writer.OutputFileName = file[:-4]+'_painted.vti'
> writer.Execute()
>
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