<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:verdana,helvetica,sans-serif;font-size:10pt"><div style="font-family: verdana,helvetica,sans-serif; font-size: 10pt;">Hello,<br>your help has been very useful for the problem of the cavity, thanks very much. I have another problem with <br>the geo file attached. I want that "ruled surfaces" 36, 38, 40, 46, 48 and 50 are part of a cylinder, so I tried to<br> construct nurbs which are belonging the cylinder, but the generated ruled surfaces are not part of the cylinder :(<br>Do you know a way to generate those surfaces correctly ? Is it possible (or soon possible) to specify directly <br>a nurb surface in gmsh (not only a nurb curve), so that I could approximate the cylinder with nurb patches ?<br>Thanks for your help.<br><br><br></div>
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