<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 20 Feb 2018, at 00:04, Junhui Liu <<a href="mailto:junhui.liu@nrl.navy.mil" class="">junhui.liu@nrl.navy.mil</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">I have generated surfaces and decided to group them into a volume. <br class=""><br class="">unstructured_Volume_surfaces_array[] = Surface "*”;<br class="">Surface Loop(surf1) = {unstructured_Volume_surfaces_array[]};<br class="">volume_index = news;<br class="">Volume(volume_index) = {surf1};<br class=""><br class="">Somehow duplicate surfaces appear and the indices of surfaces in the volume are not exact the same as I put inside the surface Loop. <br class="">I generated 115 surfaces, but after I group them into a volume, the number of surfaces becomes 182. <br class=""><br class=""></div></div></blockquote><div><br class=""></div><div>By default we try to build volumes that are correctly oriented - this indeed can generate new surfaces. You can disable this by setting Geometry.OCCAutoFix = 0;</div><br class=""><blockquote type="cite" class=""><div class=""><div class="">I used Gmsh 3.0.6, 1 with SetFactory("OpenCASCADE”);<br class=""></div></div></blockquote><div><br class=""></div><div>Give the latest snapshot a try - it solves quite a few edge cases of the opencascade integration.</div><div><br class=""></div>Christophe</div><div><br class=""><blockquote type="cite" class=""><div class=""><div class=""><br class="">I appreciate any help.<br class=""><br class="">Junhui<br class=""><br class=""><br class=""><br class="">_______________________________________________<br class="">gmsh mailing list<br class=""><a href="mailto:gmsh@onelab.info" class="">gmsh@onelab.info</a><br class="">http://onelab.info/mailman/listinfo/gmsh<br class=""></div></div></blockquote></div><br class=""><div class="">
<div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;">— </div><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;">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="">Free software: http://gmsh.info | http://getdp.info | http://onelab.info</div></div>
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