<div dir="ltr">hey all,<div>I have a question regarding the $Nodes section in the .msh file format. The only information I could find is the following:</div><div><br></div><div><pre class="example" style="font-size: 10pt; line-height: 13px; color: rgb(51, 51, 51);">$Nodes
<var>number-of-nodes</var>
<var>node-number</var> <var>x-coord</var> <var>y-coord</var> <var>z-coord</var>
…
$EndNodes</pre><pre class="example" style="font-size: 10pt; line-height: 13px; color: rgb(51, 51, 51);"><br></pre><pre class="example" style="font-size: 10pt; line-height: 13px; color: rgb(51, 51, 51);"><br></pre><pre class="example" style="font-size: 10pt; line-height: 13px; color: rgb(51, 51, 51);"><font face="arial, sans-serif">However, in some of my gmsh generated .msh files I have another column following the z-coord full of integer zeros. Does someone know why and what is the purpose? And how come I see them in some of my files, but not all?</font></pre><pre class="example" style="font-size: 10pt; line-height: 13px; color: rgb(51, 51, 51);"><font face="arial, sans-serif"><br></font></pre><pre class="example" style="font-size: 10pt; line-height: 13px; color: rgb(51, 51, 51);"><font face="arial, sans-serif">Thank you!</font></pre></div></div>