Make sure the data extents are consistent with the data size.<br>Data size should be 769*769*456.<br><br><div><span class="gmail_quote">On 7/20/06, <b class="gmail_sendername">Glauco Silva</b> <<a href="mailto:glauco.silva@cenpra.gov.br">
glauco.silva@cenpra.gov.br</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div>
<div bgcolor="#ffffff">
<div><font face="Arial" size="2">Hi,</font></div>
<div><font face="Arial" size="2">I'm trying to use vtkImageImport to import some
data. </font></div>
<div><font face="Arial" size="2">If i import few data it's all right, but if i
import a lot of data, an error of read memory occurs.</font></div>
<div><font face="Arial" size="2">Is There some problem to import a lot of data
?</font></div>
<div><font face="Arial" size="2">why does it import few data but don't import a lot
of data ?</font></div>
<div><font face="Arial" size="2">Thanks</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">platform : windows XP</font></div>
<div><font face="Arial" size="2">Dual Core AMD Opteron(tm)</font></div>
<div><font face="Arial" size="2">Processor 180</font></div>
<div><font face="Arial" size="2">2.41Ghz, 2.00 GB of RAM</font> </div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">language : Python 2.3 , VTK 5</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">##part of code when occur
error :</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">vtkImages =
vtkImageImport()<br>vtkImages.SetDataExtent(0,768,0,768,0,455)<br>vtkImages.SetWholeExtent(0,768,0,768,0,455)<br>vtkImages.SetDataScalarType(4)<br>vtkImages.SetDataSpacing(0.38541666699999999,
0.38541666699999999, 1.5)<br>vtkImages.SetDataOrigin((0,0,0))</font></div>
<div><font face="Arial" size="2"># image.data - > <read-write buffer for
0x03C68E50, ptr 0x26AD0020, size 536739840 at 0x00B3A3C0></font></div>
<div><font face="Arial" size="2"># image.size = 268369920</font></div>
<div><font face="Arial" size="2"># image.itemsize =
2<br>vtkImages.CopyImportVoidPointer(image.data,
image.size*image.itemsize)<br>vtkImages.GlobalWarningDisplayOff()<br>vtkImages.Update()<br></font></div>
<div><font face="Arial" size="2">##</font></div>
<div><font face="Arial" size="2"> </font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">
<div><font face="Arial" size="2">##part of code when don't occur error:</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">vtkImages =
vtkImageImport()<br>vtkImages.SetDataExtent(0,768,0,768,0,25)<br>vtkImages.SetWholeExtent(0,768,0,768,0,25)<br>vtkImages.SetDataScalarType(4)<br>vtkImages.SetDataSpacing(0.38541666699999999,
0.38541666699999999, 1.5)<br>vtkImages.SetDataOrigin((0,0,0))</font></div>
<div><font face="Arial" size="2"># image.data - > <read-write buffer for
0x03C685C0, ptr 0x05FA0020, size 28311552 at 0x00D13A40></font></div>
<div><font face="Arial" size="2"># image.size = 14155776</font></div>
<div><font face="Arial" size="2"># image.itemsize =
2<br>vtkImages.CopyImportVoidPointer(image.data,
image.size*image.itemsize)<br>vtkImages.GlobalWarningDisplayOff()<br>vtkImages.Update()<br></font></div>
<div><font face="Arial" size="2">##</font></div></font></div></div>
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