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<div>Hi</div>
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<div>I programmed an own vtk Filter which internally has multiple threads. In each thread I create a vtkImageData object using</div>
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<div><font face="Courier New, monospace" size="2">vtkSmartPointer<vtkImageData> oImage = vtkImageData::New();</font></div>
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<div>the problem is that sometimes the New() operator crashes, I debugged it the the line 61 of vtkImageData.cxx:</div>
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<div><font face="Courier New, monospace" size="2" color="#0000FF">this<font color="#000000">->Information->Set(vtkDataObject::DATA_EXTENT(), </font>this<font color="#000000">->Extent, 6);</font></font></div>
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<div>whereby the exact crash is in vtkInformationIntegerPointerKey.cxx on line 58:</div>
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<div><font face="Courier New, monospace" size="2" color="#0000FF">if<font color="#000000">(</font>this<font color="#000000">->RequiredLength >= 0 && length != </font>this<font color="#000000">->RequiredLength)</font></font></div>
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<div>wherehy the “this” pointer is zero. I am not so deep familiar with that, any suggestions? </div>
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<div><b>DI Gerald Lodron</b></div>
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<div><font color="#808080">Machine Vision Applications</font></div>
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<div><font color="#808080">DIGITAL - Institute for Information and Communication Technologies</font></div>
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<div><font size="1" color="#808080">JOANNEUM RESEARCH Forschungsgesellschaft mbH</font></div>
<div><font size="1" color="#808080">Steyrergasse 17, 8010 Graz, AUSTRIA</font></div>
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<div><font size="1" color="#808080">phone: +43-316-876-1751 personal fax: +43-316-876-91751</font></div>
<div><font size="1" color="#808080">mobile: +43-699-1876-1751 general fax: +43-316-876-1720</font></div>
<div><font size="1" color="#808080">web: <a href="http://www.joanneum.at/digital"><font face="Verdana, sans-serif"><u>http://www.joanneum.at/digital</u></font></a></font></div>
<div><font size="1" color="#808080">e-mail: <a href="mailto:gerald.lodron@joanneum.at"><font face="Verdana, sans-serif" color="#0000FF"><u>gerald.lodron@joanneum.at</u></font></a></font></div>
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