<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV>Hi Markus,</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>A straightforward conversion between an ITK mesh and a FEM mesh is non-existent. I'm reworking the FEM mesh class now and maybe I'll come up with something but until then...</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>The current FEM framework allows for an external mesh to be brought into the FEM project but that, in addition to the default rectilinear mesh that is created when no external mesh is specified, is the extent of the current FEM library meshing capabilities. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Nick Tustison</DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR><DIV><DIV>On Jun 12, 2006, at 11:32 AM, Markus Weigert wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"> <DIV><FONT face="Arial" size="2">Hi all,</FONT></DIV> <DIV><FONT face="Arial" size="2"></FONT> </DIV> <DIV><FONT face="Arial" size="2">in the insight book ("Insight into Images") from Terry S. Yoo,</FONT></DIV> <DIV><FONT face="Arial" size="2">there is a nice example of adaptive lung meshing (page 331).</FONT></DIV> <DIV><FONT face="Arial" size="2">My question is, how can such a meshing be obtained with ITK </FONT><FONT face="Arial" size="2">in 3D?</FONT></DIV> <DIV><FONT face="Arial" size="2">I suppose, one can use the ITK - Mesh framework for this task,</FONT></DIV> <DIV><FONT face="Arial" size="2">but the ITK Mesh would need to be casted to a FEM - Mesh.</FONT></DIV> <DIV><FONT face="Arial" size="2">Can this casting be done in a straight forward way, or is it more complicated?</FONT></DIV> <DIV><FONT face="Arial" size="2"></FONT> </DIV> <DIV><FONT face="Arial" size="2">Also, this would be interesting because one could start to segment an image</FONT></DIV> <DIV><FONT face="Arial" size="2">and mesh individual surfaces to model each tissue with different elasticity.</FONT></DIV> <DIV><FONT face="Arial" size="2">Any idears on this???</FONT></DIV> <DIV><FONT face="Arial" size="2"></FONT> </DIV> <DIV><FONT face="Arial" size="2">Regards,</FONT></DIV> <DIV><FONT face="Arial" size="2">Markus</FONT></DIV> <DIV><FONT face="Arial" size="2"></FONT> </DIV> <DIV><FONT face="Arial" size="2"></FONT> </DIV> <DIV><FONT face="Arial" size="2"></FONT> </DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Insight-users mailing list</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="mailto:Insight-users@itk.org">Insight-users@itk.org</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="http://www.itk.org/mailman/listinfo/insight-users">http://www.itk.org/mailman/listinfo/insight-users</A></DIV> </BLOCKQUOTE></DIV><BR></BODY></HTML>