Hello,
I am trying to use the compound volume function to combine 2 cubes I
have extruded into one mesh. The cubes each have an individual
characteristic length and need to be able tag the individuals cubes as
physical sections. However when I try generate a 3d mesh i get the
following error:
Error : Self intersecting surface mesh, computing intersections
(this could take a while)
I have tried cut and merge faces but this does not appear to help.
Is there any easy way to achieve what I am trying to do with gmsh?
Code below:
lc=5.000000;
Point(1)={0,0,0,lc};
Point(2)={100.000000,0,0,lc};
Point(3)={100.000000,100.000000,0,lc};
Point(4)={0,100.000000,0,lc};
Point(5)={-50.0, -50.0, 50, 10*lc};
Point(6)={150.0, -50.0, 50, 10*lc};
Point(7)={150.0, 150.0, 50, 10*lc};
Point(8)={-50.0, 150.0, 50, 10*lc};
Line(1) = {1,2} ;
Line(2) = {3,2} ;
Line(3) = {3,4} ;
Line(4) = {4,1} ;
Line(5) = {5,6} ;
Line(6) = {7,6} ;
Line(7) = {7,8} ;
Line(8) = {8,5} ;
Line Loop(5) = {4,1,-2,3} ;
Line Loop(6) = {8,5,-6,7} ;
Plane Surface(6) = {5} ;
Plane Surface(7) = {6} ;
out0[] = Extrude {0, 0, -50.0000000} { Surface {6};};
out1[] = Extrude {0, 0, -100.000000} { Surface {7};};
s5=newreg;
Compound Volume(s5) = {1,2};
Physical Volume("cube1") = {1};
Physical Volume("cube2") = {2};
Physical Volume("s5") = {3};
Regards,
Jaco.
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