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benchmarks/3d/transfinite_extrude.geo

+l = 1;
+r1 = 0.5;
+n = 10;
+Point(1) = {0,0,0,l};
+Point(2) = {r1,r1,-r1,l};
+Point(3) = {-r1,r1,-r1,l};
+Point(4) = {-r1,-r1,-r1,l};
+Point(5) = {r1,-r1,-r1,l};
+Line(1) = {2,3};
+Line(2) = {3,4};
+Line(3) = {4,5};
+Line(4) = {5,2};
+Transfinite Line{1:4} = n;
+Line Loop(5) = {4,1,2,3};
+Plane Surface(6) = {5};
+Transfinite Surface{6} = {2,3,4,5} Alternate;
+Extrude Surface {6, {0.0,0.0,r1/10}} { Layers{1,1};  }  ;