<div dir="ltr"><p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif;background-image:initial;background-repeat:initial">Hello everyone,</span><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman",serif"></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif">I
met a problem seems pretty simple but have bothered me for two days. </span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif">I
have a structure constructed with beam and plate. So I want to use 1d element
(for the beam) and 2d element (for of plate) at the same time in <span style="background:yellow">gmsh</span>. As I have already programed in <span style="background:yellow">matlab</span> an element 1d (order 1) with 2
nodes and an element 2d with 8 nodes (order 2), I want to use them directly.
Then I find it difficult in <span style="background:yellow">gmsh</span> to
set different order to different region of my structure. If I use </span><font face="Arial, sans-serif"><span style="font-size:16px">Mesh.ElementOrder =2; </span></font><span style="font-size:16px;font-family:Arial,sans-serif">Mesh.SecondOrderIncomplete = 1, then the 1d element will have 3 nodes. If I delete these lines, the 2d element will have 4 nodes.</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif">Does
anyone have any idea on this question? </span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif">Thank
you very much. </span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif">By
the way, I use  <span style="background:yellow">gmsh</span> 2.8.5 and
the file .<span style="background:yellow">geo</span> is in the
attachment. This is only a simplified exemple of my structure. There is only three cells in this exemple and I plan to have 50 cells in x direction and 30 in y direction. </span></p><p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif"><br></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif"><span style="font-family:arial,sans-serif;font-size:small">-- </span><br style="font-family:arial,sans-serif;font-size:small"></span></p><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div style="color:rgb(136,136,136)">Li Nan</div><div style="color:rgb(136,136,136)"><span class="" id=":zf.8" tabindex="-1">Doctorante</span></div><div style="color:rgb(136,136,136)"><span class="" id=":zf.9" tabindex="-1">Laboratoire</span> <span class="" id=":zf.10" tabindex="-1">Roberval</span></div><div style="color:rgb(136,136,136)"><span class="" id=":zf.11" tabindex="-1">Université</span> <span class="" id=":zf.12" tabindex="-1">de</span> <span class="" id=":zf.13" tabindex="-1">Technologie</span> <span class="" id=":zf.14" tabindex="-1">de</span> <span class="" id=":zf.15" tabindex="-1">Compiègne</span>, France</div><div style="color:rgb(136,136,136)">Email: <a href="mailto:nan.li@utc.fr" target="_blank">nan.<span class="" id=":zf.16" tabindex="-1">li</span>@<span class="" id=":zf.17" tabindex="-1">utc</span>.fr</a></div></div></div></div>