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<TITLE>Extrude 2D surface by rotating to create mesh - Openflower crashes</TITLE>
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<P><FONT SIZE=2 FACE="Arial">Hi!</FONT>
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<P><FONT SIZE=2 FACE="Arial">I am trying to extrude a surface by rotating it, then process the 3D mesh in openflower. </FONT>
<BR><FONT SIZE=2 FACE="Arial">Extruding seems to create some errors - line 34 : Explicit region numbers in layers are deprecated</FONT>
<BR><FONT SIZE=2 FACE="Arial">I can then generate a 3d mesh, but there is one error - Cannot tetrahedralize volume with quadrangles on boundary </FONT>
<BR><FONT SIZE=2 FACE="Arial">Openflower crashes when trying to run the .flw file. </FONT>
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<P><FONT SIZE=2 FACE="Arial">I have copied the following code, but don't understand where to get the numbers from in the layers expression - Layers { 6, 54, 1 } could this be the problem?</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Extrude Surface {12, {0,0,1}, {0,0,0}, 2*Pi/3} {</FONT>
<BR><FONT SIZE=2 FACE="Arial"> Recombine ; Layers { 6, 54, 1 } ; </FONT>
<BR><FONT SIZE=2 FACE="Arial">} ;</FONT>
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<P><FONT SIZE=2 FACE="Arial">Extrude Surface {64, {0,0,1}, {0,0,0}, 2*Pi/3} {</FONT>
<BR><FONT SIZE=2 FACE="Arial"> Recombine ; Layers { 6, 311, 1 } ; </FONT>
<BR><FONT SIZE=2 FACE="Arial">} ;</FONT>
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<P><FONT SIZE=2 FACE="Arial">Extrude Surface {116, {0,0,1}, {0,0,0}, 2*Pi/3} {</FONT>
<BR><FONT SIZE=2 FACE="Arial"> Recombine ; Layers { 6, 568, 1 } ; </FONT>
<BR><FONT SIZE=2 FACE="Arial">} ;</FONT>
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<P><FONT SIZE=2 FACE="Arial">.geo .flw and GMSH error log attached.</FONT>
<BR><FONT FACE="Arial" SIZE=2 COLOR="#000000"> <<die2.flw>> </FONT><FONT FACE="Arial" SIZE=2 COLOR="#000000"> <<die2.geo>> </FONT><FONT FACE="Arial" SIZE=2 COLOR="#000000"> <<GMSH error.txt>> </FONT>
<BR><FONT SIZE=2 FACE="Arial">Many thanks!!</FONT>
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<P><B><FONT COLOR="#000080" SIZE=2 FACE="Century Gothic">Tim Martin</FONT></B>
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