<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
It is much more difficult to get when the profile is the intersection of<br>
a plane with the 3D surface of an airfoil (typically unstructured), and<br>
the numbering of vertices is all but monotonously increasing. Yet<br>
harder, if the profile is the intersection of a 3D multi-block airfoil<br>
surface.</blockquote><div><br>And for that very purpose "Plot on Sorted Lines" filter was recently added to CVS. It sorts the points so that the numbering of vertices is monotonously increasing. For the multiblock-case, you'll have to do a couple of operations: Merge Blocks -> Extract Surface -> Plot on Sorted Lines which will merge the multiblock into a single dataset and then sort and plot them.<br>
<br>Utkarsh<br></div><br></div><br>