<br><font size=2 face="Courier New">Christos,</font>
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<br><font size=2 face="Courier New">Your extent doesn't match your image size (it will mess up the volume rendering if its not causing this error). Use the VOI method to limit the volume of interest if that was your intent.</font>
<br>
<br><font size=2 face="Courier New">reader1->SetDataExtent(0,245,0,245,0,93);</font>
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<br><font size=2 face="Courier New">Also turn on the reader debug method and see if its really reading all the files (1 to 94)....sounds like maybe its running out of data to read. Try just a few slices and see if that works.</font>
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<br><font size=2 face="Courier New">....john</font>
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<td><font size=1 face="sans-serif"><b>Christos Panagiotou <cpanagio@cs.ucl.ac.uk></b></font>
<br><font size=1 face="sans-serif">Sent by: vtkusers-admin@vtk.org</font>
<p><font size=1 face="sans-serif">07/09/2003 10:52 AM</font>
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<br><font size=1 face="sans-serif"> To: vtkusers@vtk.org</font>
<br><font size=1 face="sans-serif"> cc: (bcc: John Anast-JM/PGI)</font>
<br><font size=1 face="sans-serif"> Subject: [vtkusers] HELP -- vtkImageReader2 ERROR!</font></table>
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<br><font size=2 face="Courier New">hi there<br>
<br>
this follows a previous post:<br>
*****<br>
i am trying the past couple of days to volumize a set of raw data files <br>
containing medical data<br>
the files represent images of<br>
size 256x256<br>
binary (0-255)<br>
spacing 2.5<br>
voxel size (x,y) 1.1211<br>
(the above data comes from an independent header file / raw files -> no <br>
header)<br>
<br>
first of all which reader should i use?<br>
vtkImageReader, vtkImageReader2, vtkBMPReader, ...?<br>
<br>
if someone has already some code that does something similar, i would <br>
appreciate if he/she could share it<br>
*****<br>
<br>
I have attempted to write the module however I there is a problem in the <br>
next block of calls:<br>
<br>
vtkImageReader2 *reader1 = vtkImageReader2::New();<br>
<br>
reader1->SetFileDimensionality(2);<br>
reader1->SetNumberOfScalarComponents(1);<br>
reader1->SetFilePrefix("/home/christos/VIVE02/data/countour1/ABDL <br>
15436 one contour"); //filenames are ok<br>
reader1->SetFilePattern("%s.l%.2d"); //filenames are ok<br>
reader1->SetDataByteOrderToBigEndian();<br>
<br>
reader1->SetDataScalarTypeToShort(); <br>
reader1->SetDataExtent(0,245,0,245,0,93);<br>
reader1->SetDataSpacing(1.1211,1.1211,2.5);<br>
reader1->SetDataOrigin(120.1, -130.5, -60.5);<br>
<br>
<br>
The error I am getting in the console is:<br>
<br>
_-----------------------------------------------------------------------------------------<br>
_<br>
_Generic Warning: In /home/bellet/rpm/BUILD/VTK/IO/vtkImageReader2.cxx, <br>
line 668<br>
File operation failed. row = 140, Read = 492, FilePos = -1<br>
<br>
<br>
Press Enter to continue!<br>
-----------------------------------------------------------------------------------------_<br>
<br>
I have oppened the some of the files with a hex editor etc. and they <br>
seem ok!<br>
<br>
_<br>
_Any help would be really appreciated!<br>
Also if someone has a module that does the job, I would really be <br>
greatful if he/she could message me!<br>
<br>
thanks<br>
christos<br>
<br>
<br>
<br>
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