Hello,<div><br></div><div>Please have a look to the picture attached</div><div>It shows 3 rectangles:</div><div>- A big one</div><div>- A small one inside the big one</div><div>- A 2nd small one outside the big one and touching the first small one</div>
<div><br></div><div>For the upper small rectangle, I can assign planes</div><div>For the lower one, gmsh refuses to create the plane colored by red lines</div><div><br></div><div>Why is this refused?</div><div>What do I do wrong?</div>
<div>How can I solve this?</div><div><br></div><div>The .geo file is also attached</div><div><br></div><div>Thanks,</div><div>Nout</div><div><br></div><div><br></div>