[vtk-developers] [VTK 0012730]: Importing large arrays from numpy inyo VTK does not work.
Mantis Bug Tracker
mantis at public.kitware.com
Wed Nov 16 06:18:13 EST 2011
The following issue has been SUBMITTED.
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http://www.vtk.org/Bug/view.php?id=12730
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Reported By: Bryn Lloyd
Assigned To:
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Project: VTK
Issue ID: 12730
Category: (No Category)
Reproducibility: have not tried
Severity: minor
Priority: normal
Status: backlog
Project: TBD
Type: incorrect functionality
Resolution: open
Fixed in Version:
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Date Submitted: 2011-11-16 06:18 EST
Last Modified: 2011-11-16 06:18 EST
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Summary: Importing large arrays from numpy inyo VTK does not
work.
Description:
Importing large arrays from numpy into VTK does not work.
This was already mentioned on the users list, and reproduced by David Gobbi.
Example 1:
==========
from numpy import zeros
import vtk
a = zeros(2**32 - 1).astype(uint8) #to create a massive
array im = vtk.vtkImageImport() #believe this
is the standard method to convert to vtk
im.CopyImportVoidPointer(a.tostring(),a.size) #do conversion
throws the following error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
SystemError: error return without exception set
Example 2:
==========
from vtk.util import numpy_support as vn
import vtk
import numpy
a = numpy.zeros(2**32-1, numpy.uint8)
aV = vn.numpy_to_vtk(pp, deep=False)
The last line throws the error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "P:\vtk-5.6.1\x64\Wrapping\Python\vtk\util\numpy_support.py", line 165,
in numpy_to_vtk
result_array.SetVoidArray(z_flat, len(z_flat), 1)
OverflowError: size does not fit in an int
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Issue History
Date Modified Username Field Change
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2011-11-16 06:18 Bryn Lloyd New Issue
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