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<TITLE>vtkAppendFilter with double precision points (UNCLASSIFIED)</TITLE>
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<P><FONT SIZE=2 FACE="Arial">Classification: <U><B> UNCLASSIFIED</B></U><B></B> </FONT>
<BR><FONT SIZE=2 FACE="Arial">Caveats: NONE</FONT>
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<P><FONT SIZE=2 FACE="Arial">Hello all,</FONT>
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<P><FONT SIZE=2 FACE="Arial">I am reading an exodus II file into vtk using the vtkExodusIIReader and am converting the resulting vtkMultiBlockDataSet to a vtkUnstructuredGrid for further processing. I am using a vtkAppendFilter to get from the vtkMultiBlockDataSet to a vtkUnstructuredGrid.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">However, I am losing precision for the point values after running through the vtkAppendFilter. I have verified that the points are double precision before entering the filter and single precision afterwards. I am not surprised that I lose precision as it looks like a new vtkPoints (default = single precision) is allocated in the vtkAppendFilter class and there appears to be no way to change this behavior.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Does anyone have a workaround or another way to accomplish what I need to do? It was difficult enough to get the vtkExodusIIReader to read in double precision points without converting them to floats!</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Thanks,</FONT>
<BR><FONT SIZE=2 FACE="Arial">Ken</FONT>
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<P><FONT SIZE=2 FACE="Courier New">---------------------------------------------------------</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Kenneth Leiter</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Scientific Visualization Team</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Lockheed Martin / ARL DoD Supercomputing Resource Center</FONT>
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<P><FONT SIZE=2 FACE="Arial"> </FONT>
<BR><FONT SIZE=2 FACE="Arial">Classification: </FONT><U></U><U><B> <FONT SIZE=2 FACE="Arial">UNCLASSIFIED</FONT></B></U><B></B>
<BR><FONT SIZE=2 FACE="Arial">Caveats: NONE</FONT>
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