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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>I still do not understand what decimatepro is doing
of my </FONT></DIV>
<DIV><FONT face=Arial size=2>parameters : </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>When I set PreserveTopologyOn() and
</FONT></DIV>
<DIV><FONT face=Arial size=2>SetMaximumError</FONT><FONT face=Arial
size=2>(0.0), </FONT><FONT face=Arial size=2>decimatePro keeps decimating till
</FONT></DIV>
<DIV><FONT face=Arial size=2>the target is reach </FONT><FONT face=Arial
size=2>(default setting = 0.9), which is </FONT></DIV>
<DIV><FONT face=Arial size=2>impossible considering my </FONT><FONT face=Arial
size=2>scene / terrain without having an </FONT></DIV>
<DIV><FONT face=Arial size=2>error > 0.0.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Am I doing something wrong?</FONT></DIV>
<DIV><FONT face=Arial size=2>I aldready managed to make decimatePro work in
other </FONT></DIV>
<DIV><FONT face=Arial size=2>apps, this is the first time it behaves like
this.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Is there a probleme with single / multi threading
(i am in </FONT></DIV>
<DIV><FONT face=Arial size=2>single) ?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>My code </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2>/*=========================================*/</FONT></DIV>
<DIV><FONT face=Arial size=2> vtkDecimatePro *decimation2 =
vtkDecimatePro::New();<BR> decimation2->SetInput(a_polydata_of_80000_triangles);</FONT></DIV>
<DIV><FONT face=Arial
size=2> decimation2->PreserveTopologyOn();<BR></FONT><FONT face=Arial
size=2> decimation2->SetMaximumError(0.0);</FONT></DIV>
<DIV><FONT face=Arial size=2> decimation2->Update();</FONT></DIV>
<DIV><FONT face=Arial
size=2>/*========================================*/</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>then :</FONT></DIV>
<DIV><FONT face=Arial size=2>decimation->Getoutput() =
a_polydata_of_8000_triangles</DIV>
<DIV>, that is impossible without an error > 0.0</DIV>
<DIV> </DIV>
<DIV>Do you have any idea?<BR></DIV></FONT>
<DIV><FONT face=Arial size=2>Sebastien MARAUX</FONT></DIV></BODY></HTML>