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<DIV><FONT face=Arial size=2>hello,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>1. is there a person kind enough for
explaining what are </FONT></DIV>
<DIV><FONT face=Arial size=2>vtkQuadricClustering and
vtkQuadricDecimation for?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>These functions are not widely explained in
the manpages.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I want to use decimation in order to decimate a DEM
</FONT></DIV>
<DIV><FONT face=Arial size=2>surface obtained via vtkDelaunay2D on a points
set.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>2. especially, I do not understand what means
"cost" ?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>3. Is the</FONT><FONT face=Arial size=2>re a simple
rule to deduce a decimation ratio from </FONT></DIV>
<DIV><FONT face=Arial size=2>cost ?</FONT></DIV></BODY></HTML>