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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Christophe,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">with the latest snapshot, the export of the simple geometry is correct. However, the crash for the more complicated one remains…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Can I start gmsh with a parameter so that it writes error messages somewhere? I briefly that there are messages, but before I can open the message
window, the application crashes.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I forgot to say that I use Windows 7.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Matthias<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Christophe Geuzaine [mailto:cgeuzaine@uliege.be]
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<b>Gesendet:</b> Dienstag, 19. Juni 2018 14:14<br>
<b>An:</b> Zenker, Dr. Matthias<br>
<b>Cc:</b> gmsh@onelab.info<br>
<b>Betreff:</b> Re: [Gmsh] Export .geo as .step - "No OpenCASCADE model found"<o:p></o:p></span></p>
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<p class="MsoNormal">On 19 Jun 2018, at 13:36, Zenker, Dr. Matthias <<a href="mailto:Matthias.Zenker@erbe-med.com">Matthias.Zenker@erbe-med.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thank you for the quick answer!</span><o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Unfortunately, it seems not to be that easy. It exports a step file now, but the geometry is not complete. I try it on a very simple geometry consisting
of a three stacked boxes (see attachment). The upper one is missing in the step file.</span><o:p></o:p></p>
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<p class="MsoNormal">With the latest snapshot the exported brep seems correct:<o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">In my “real” geometry (which I cannot share), there were many Ruled Surfaces, causing gmsh to issue warnings since Ruled Surfaces seem to be deprecated.
If I replace them by just Surfaces, gmsh crashes immediately when I open the geometry with the OpenCASCADE statement at the beginning.</span><o:p></o:p></p>
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<p class="MsoNormal">Can you try this more complex example with the latest snapshot?<o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Matthias</span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span class="xapple-converted-space"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> </span></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Christophe
Geuzaine [<a href="mailto:cgeuzaine@uliege.be"><span style="color:purple">mailto:cgeuzaine@uliege.be</span></a>]<span class="xapple-converted-space"> </span><br>
<b>Gesendet:</b><span class="xapple-converted-space"> </span>Dienstag, 19. Juni 2018 12:12<br>
<b>An:</b><span class="xapple-converted-space"> </span>Zenker, Dr. Matthias<br>
<b>Cc:</b><span class="xapple-converted-space"> </span><a href="mailto:gmsh@onelab.info"><span style="color:purple">gmsh@onelab.info</span></a><br>
<b>Betreff:</b><span class="xapple-converted-space"> </span>Re: [Gmsh] Export .geo as .step - "No OpenCASCADE model found"</span><o:p></o:p></p>
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<p class="MsoNormal">On 19 Jun 2018, at 11:47, Zenker, Dr. Matthias <<a href="mailto:Matthias.Zenker@erbe-med.com"><span style="color:purple">Matthias.Zenker@erbe-med.com</span></a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Hi,</span><o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">I have a geometry built as .geo quite some time ago (with gmsh 2.x). Now I want to export it as .step for a colleague to view it in his CAD software. But gmsh
complains “No OpenCASCADE model found” and refuses to write the step file. What can I do to fix that?</span><o:p></o:p></p>
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<p class="MsoNormal">Gmsh never translates between CAD kernels: so if you build your model with the built-in kernel, you won't be able to "export" it as as an OpenCASCADE model.<o:p></o:p></p>
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<p class="MsoNormal">What you could do is to add "SetFactory("OpenCASCADE")" at the beginning of your old script, and see if your geometry can get generated directly as an OpenCASCADE model. (You might have to change a few things.) Then you could export as
.brep or .step.<o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Thanks,</span><o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Matthias</span><o:p></o:p></p>
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<span style="font-size:8.0pt;font-family:"Calibri","sans-serif""><br>
Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif"">_______________________________________________<br>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif"">— </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif"">Prof. Christophe Geuzaine<br>
University of Liege, Electrical Engineering and Computer Science <br>
<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.montefiore.ulg.ac.be_-7Egeuzaine&d=DwMFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q-IVyyYW-Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=FnwHLHxrRyCLSSUXVHaE4r_g4iY3iMqhXzMiHF5akRg&s=wIxQLP_lXx2OLXcdBgZAfUoUQuqhCOXSAf3eRS1OxSo&e="><span style="color:purple">http://www.montefiore.ulg.ac.be/~geuzaine</span></a><br>
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Free software: <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__gmsh.info_&d=DwMFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q-IVyyYW-Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=aJmkHHh4JlFopOdtchxMMR8WpfirwyObbfe5dZvm5jI&s=oOo9BCxd6ik2Y3LilzXO3siUJrWG2SMlCcaucGfVl3E&e="><span style="color:purple">http://gmsh.info</span></a> | <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__getdp.info_&d=DwMFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q-IVyyYW-Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=aJmkHHh4JlFopOdtchxMMR8WpfirwyObbfe5dZvm5jI&s=p-I_CGlCNx_5GYlXIrSv8_ZyxI1BTd4HwEn-j4EHSxk&e="><span style="color:purple">http://getdp.info</span></a> | <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__onelab.info_&d=DwMFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q-IVyyYW-Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=aJmkHHh4JlFopOdtchxMMR8WpfirwyObbfe5dZvm5jI&s=_F2VXzO362gGKOOaerIusnqH7IdvSWLxpCyOHF_HNSs&e="><span style="color:purple">http://onelab.info</span></a></span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:8.0pt;font-family:"Calibri","sans-serif""><br>
Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137<o:p></o:p></span></p>
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<p class="MsoNormal"><layers_OCC.step><layers_OCC.geo><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif"">_______________________________________________<br>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black">— <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black">Prof. Christophe Geuzaine<br>
University of Liege, Electrical Engineering and Computer Science <br>
<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.montefiore.ulg.ac.be_-7Egeuzaine&d=DwMFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q-IVyyYW-Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=aJmkHHh4JlFopOdtchxMMR8WpfirwyObbfe5dZvm5jI&s=nI_ecJZUv0jPv59S7imRcA4xwMN4SR0DkNqOlK4QJLg&e=">http://www.montefiore.ulg.ac.be/~geuzaine</a><br>
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Free software: <a href="http://gmsh.info">http://gmsh.info</a> | <a href="http://getdp.info">http://getdp.info</a> | <a href="http://onelab.info">http://onelab.info</a><o:p></o:p></span></p>
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