<div>Hi,</div> <div> Thank you very much for your kind reply.But I want to extract two edges separately and convert those to two separate polydata and then manipulate.Could you pls give any hints about that?The extracted points from the edges may lie too close to each other or intersect.</div> <div> </div> <div>regards,</div> <div>Sawsan<BR><BR><B><I>David.Pont@ensisjv.com</I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <div><TT>Sawsan Ahmed <sawsanahm@yahoo.com> wrote on 21/01/2007 04:02:39:<BR><BR>> <BR>> Hi Friends,</TT><BR><TT>> I posted questions but till now without any answer.May<BR>> be those answers are too easy.But I am stuck.I am posting those <BR>> questions again:</TT><BR><TT>> </TT><BR><TT>> 1) Suppose I have got a tube (of arbitrary shape),two ends of which <BR>>
are arbitrarily cut.I want to extract only those two ends.How can I do that?</TT><BR><BR><TT>try vtkFeature edges to extract boundary edges</TT><BR><BR><TT>> </TT><BR><TT>> 2)I have got a point on the surface of a tube and have calculated <BR>> the normal at that point.Now I want to extend a line along that <BR>> normal so that it cuts the other end on the surface of the tube and <BR>> I want to get that point of intersection of this line with the tube <BR>> at the other end.</TT><BR><BR><TT>I see in vtk 5 vtkBSPIntersections that might be useful here</TT><BR><BR><TT> regards</TT><BR><TT> DP</TT><BR><TT>> </TT><BR><TT>> Thanks in advance.</TT><BR><TT>> Sawsan</TT><BR><TT>> <BR>> </TT><BR><TT>> TV dinner still cooling?<BR>> Check out "Tonight's Picks" on Yahoo! TV.<BR>> _______________________________________________<BR>> This is the private VTK discussion list. <BR>> Please
keep messages on-topic. Check the FAQ at: <A href="http://www.vtk/">http://www.vtk</A>.<BR>> org/Wiki/VTK_FAQ<BR>> Follow this link to subscribe/unsubscribe:<BR>> <A href="http://www.vtk.org/mailman/listinfo/vtkusers">http://www.vtk.org/mailman/listinfo/vtkusers</A><BR></TT></div></BLOCKQUOTE><BR><p> 
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