<html><head><base href="x-msg://194/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Thank you! Now I understand what intersect.pos is for :-)<div>Is there a way to fix the intersections within gMsh? </div><div>Best,</div><div>Einat</div><div><br></div><div><br><div><div>On Dec 19, 2012, at 4:15 AM, Zenker, Dr. Matthias wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div lang="DE" link="blue" vlink="purple"><div class="WordSection1"><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">Hi,</span></div><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; "> </span></p><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; ">I have reproduced your problem. There are indeed intersections, you can see them when you merge the intersect.pos file written by gmsh to your geo file. Now where the intersections come from and why MeshLab doesn’t find them I don’t know. But at least you can see where they are.</span></div><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; "> </span></p><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; ">HTH,</span></div><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; "> </span></p><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; ">Matthias</span></div><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; "> </span></p><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; "> </span></p><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; "> </span></p><div style="border-top-style: none; border-right-style: none; border-bottom-style: none; border-width: initial; border-color: initial; border-left-style: solid; border-left-color: blue; border-left-width: 1.5pt; padding-top: 0cm; padding-right: 0cm; padding-bottom: 0cm; padding-left: 4pt; "><div><div style="border-right-style: none; border-bottom-style: none; border-left-style: none; border-width: initial; border-color: initial; border-top-style: solid; border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding-top: 3pt; padding-right: 0cm; padding-bottom: 0cm; padding-left: 0cm; "><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; ">Von:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; "><span class="Apple-converted-space"> </span>Einat Lev [mailto:einatlev@ldeo.columbia.edu]<span class="Apple-converted-space"> </span><br><b>Gesendet:</b><span class="Apple-converted-space"> </span>Mittwoch, 19. Dezember 2012 05:47<br><b>An:</b><span class="Apple-converted-space"> </span><a href="mailto:gmsh@geuz.org" style="color: blue; text-decoration: underline; ">gmsh@geuz.org</a><br><b>Betreff:</b><span class="Apple-converted-space"> </span>[Gmsh] intersecting faces...</span></div></div></div><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "> </p><div><div><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 12pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 10pt; ">Hello all<br>I have an STL model that I created in MeshLAB. MeshLAB can't find any self-intersecting faces in the 2D surface.<br>I then Merge the STL file into a GEO file and try to create a 3D mesh by selecting the surface and adding a volume.<br>However, the 3D meshing algorithm complains about self-intersecting faces. These must be somewhere in the interior of the body, right? So, what can I do to solve this problem?<br>Attached are my STL and GEO files.<br>All the best,<br>Einat</span></p></div></div><div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 12pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 10pt; "> </span><br class="webkit-block-placeholder"></div></div></div><div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 10pt; "><br> </span></div></div></div></div></div><br><br>_____________________________________________________________________<br>ERBE Elektromedizin GmbH<br>Firmensitz: 72072 Tuebingen<br>Geschaeftsfuehrer: Christian O. 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