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<P>Dear friends,</P>
<P> Again asking for help.Whenever I use the following to compute normal at a specific point id:</P>
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<P>float *n = (float*) Polys->GetPointData()->GetNormals()->GetTuple(pointID);</P>
<P>------------------------------------------------------------------------------------------------</P>
<P>my program crashes.Error message is :</P>
<P>Unhandlexception in Axis.exe:0XC0000005:Access Violation</P>
<P> </P>
<P>Could anyone suggest what is going wrong?</P>
<P>Thanks in advance.</P>
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