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<font face="Courier New, Courier, monospace">> vtkDataSet * myDataSet = vtkDataSet::SafeDownCast(myDataSet);<br>
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> and I get NULL. What I am doing wrong here?<br>
<br>
</div><div> </div><div>You’re also passing an uninitialized value as the parameter to SafeDownCast if your code looks exactly like your email (or is that a typo?)... You’re lucky to be getting NULL back, and not a crash. The argument to SafeDownCast should be a valid pointer to an instance of some class derived from vtkDataSet in order to return non-NULL.</div><div> </div><div> </div><div>HTH,</div><div>David C.</div><div><br>
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