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<DIV><FONT face=Arial size=2>Hello, I posted a message during christmas
holidays</FONT></DIV>
<DIV><FONT face=Arial size=2>about a vtkCellLocator bug </FONT><FONT face=Arial
size=2>but didn't receive any</FONT></DIV>
<DIV><FONT face=Arial size=2>answer (well everybody got the right to
</FONT></DIV>
<DIV><FONT face=Arial size=2>take some holidays, right).</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>I post it again : </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>I can send a code snip if needed (see also mailing
list archive)</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>I am using vtkCellLocator, and
specifically</FONT></DIV>
<DIV><FONT face=Arial size=2>IntersectWithLine() method, to retrieve height of a
</FONT></DIV>
<DIV><FONT face=Arial size=2>surface from an (x,y) couple : I send a
Line</FONT></DIV>
<DIV><FONT face=Arial size=2>from -FLT_MAX (in c++) to +FLT_MAX for
(x,y)</FONT></DIV>
<DIV><FONT face=Arial size=2>couple and retrieve z of resulting
intersection point.</FONT></DIV>
<DIV><FONT face=Arial size=2>This gives sometimes
good results,</FONT></DIV>
<DIV><FONT face=Arial size=2> but also sometimes bad ones.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>You can see on the picture that mi elevatino model
is regularly</FONT></DIV>
<DIV><FONT face=Arial size=2>triangulated (DEM_data), but the polygon_data
mapped on it</FONT></DIV>
<DIV><FONT face=Arial size=2>gets some wierd up and down effects, because of 6
or 7 points </FONT></DIV>
<DIV><FONT face=Arial size=2>which height has been badly retrieved (always >
than real height).</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>You don't see it here but other points map
perfectly the</FONT></DIV>
<DIV><FONT face=Arial size=2>DEM.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Thank you to help me fix this, I think it would be
very valuable</FONT></DIV>
<DIV><FONT face=Arial size=2>to correct such a bug.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Sebastien MARAUX</FONT></DIV>
<DIV> </DIV>
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