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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-GB
style="mso-ansi-language: EN-GB"><FONT face="Times New Roman">I would like to
select/mark the points of a polydata object which are lying inside a sphere.
Using vtkClipper or vtkExtractGeometry gives me those points, however I loose
the ids of the original polydata object. Is there a way to get those point
keeping the original references so that I can do some calculations on the
points’ scalars and write them back onto the original polydata object? I looked
at vtkCutter, however I do not see a good way using it for my
purpose.</FONT></SPAN></P>
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style="mso-ansi-language: EN-GB"><?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p><FONT
face="Times New Roman"> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-GB
style="mso-ansi-language: EN-GB"><FONT face="Times New Roman">Regards,
Peter.<o:p></o:p></FONT></SPAN></P></FONT></DIV>
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<DIV><FONT face=Arial color=#000000
size=2>------------------------------------</FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2>Peter Böttcher, Dr med vet,
DipECVS</FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">European Veterinary Specialist in
Surgery</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Fachtierarzt für
Kleintierchirurgie</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT></FONT><FONT
face=Arial><FONT size=2>Klinik für Kleintiere</FONT> <BR><FONT
size=2>Universität Leipzig</FONT> <BR><FONT size=2>An den Tierkliniken 23</FONT>
<BR><FONT size=2>D-04103 Leipzig (Germany)</FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2>Tel: +49-341-9738700</FONT> <BR><FONT
size=2>Fax: +49-341-9738799</FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2>email: <A
href="mailto:boettcher@kleintierklinik.uni-leipzig.de">boettcher@kleintierklinik.uni-leipzig.de</A></FONT><BR></FONT></DIV></DIV></BODY></HTML>