<div dir="ltr"><div><div>Dear Duners,<br><br></div>I need to use a tag for a surface in a mesh which is not a boundary. If it is a boundary, I can easily call intersect->boundaryId() and retrieve its tag. However, if the surface is not a boundary this function does not work. Is there any way, I can extract the Id of surfaces which are not boundaries? I will be thankful for any recommendation.<br>
<br></div>Best regards and thanks in advance for your help,<br>Arya<br></div>