<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br class=""><blockquote type="cite" class="">On 05 Jan 2016, at 16:15, Florian Kolbl <<a href="mailto:fkolbl@essex.ac.uk" class="">fkolbl@essex.ac.uk</a>> wrote:<br class=""><br class="">Hi<br class=""><br class="">I am generating a mesh from segmented pictures using contour detection to make FEM computation on nerves. Basically I can have a 2D geometry from the segmentation, one example of my script output is on the file 2Dtest_nerve.geo, basically when I mesh it using a simple 'gmsh -2 2Dtest....' everything is fine.<br class="">However the next step is to have a 3D structure, so in the test_nerve.geo a new extruded nerve is biolt from the 2D previous geometry. The resulting geometry is exactly as I expected nevertheless I have problems when computing the 3D mesh... I have a lot or error named 'Could not find extruded vertex'. I guess it is a classic error, I tried to compute the distance between the nearest point for each point and give a lc that would increase the density but I still have these errors...the currious thing is that when I open the mesh to see where are the missing elements, I find them all in certain parts of the last layer from the extrusion.<br class=""><br class="">Is there a something missing in my geo or is there a way to avoid this kind of meshing error ?<br class=""><br class=""></blockquote><div class=""><br class=""></div><div class="">Recent versions (>= 2.9) should fix this. This is what I get with the latest stable release:</div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="63D26B95-330E-4BD3-B4C7-27835E026FC9" height="711" width="794" apple-width="yes" apple-height="yes" src="cid:FFAB260C-4AB6-466F-A44A-72B1A82A0C16@home" class=""></div><br class=""><blockquote type="cite" class="">Thanks<br class=""><br class="">Florian<br class=""><br class="">-- <br class="">Dr. Florian Kolbl<br class="">Senior Research Officer<br class=""><br class="">University of Essex<br class="">School of Computer Science and Electronic Engineering<br class="">Brain-Computer Interface Lab<br class="">Room 3A.532D<br class="">Telephone 01206 874384<br class=""><br class="">Winvenhoe Park<br class="">Colchester - Essex CO4 3SQ<br class="">United Kingdom<br class=""><br class=""><span id="cid:69B28894-4E4C-47DE-BE4F-A207CC7CBA07@home"><2Dtest_nerve.geo></span><span id="cid:72650468-8715-45EA-B715-B9407709ECB0@home"><test_nerve.geo></span>_______________________________________________<br class="">gmsh mailing list<br class=""><a href="mailto:gmsh@geuz.org" class="">gmsh@geuz.org</a><br class="">http://www.geuz.org/mailman/listinfo/gmsh<br class=""></blockquote><br class=""><div class="">-- <br class="">Prof. Christophe Geuzaine<br class="">University of Liege, Electrical Engineering and Computer Science <br class=""><a href="http://www.montefiore.ulg.ac.be/~geuzaine" class="">http://www.montefiore.ulg.ac.be/~geuzaine</a><br class=""><br class="">Tetrahedron V, July 4-5 2016: http://tetrahedron.montefiore.ulg.ac.be<br class="">Free software: http://gmsh.info | http://getdp.info | http://onelab.info<br class=""></div><br class=""></body></html>