x0= 0;
x1=x0+5;
x2=x1+10;
x3=x2+10;
x4=x3+10;
y0=0;
y4=240;
y3=y4-10;
y2=y3-10;
y1=y2-10;
t=2;
h=2;
z0=0;
z3=2*t+h;
z2=z3-t;
z1=z2-h;
m1=2;
m2=2;
m3=2;
m4=3;
n1=20;
n2=4;
n3=2;
n4=2;
n5=7;
p1=1;
p2=2;
p3=1;
[fens,gcells] = mesh_hexahedron([x1,y0,z0;x2,y1,z1],m2,n1,p1);
[fens1,gcells1] = mesh_hexahedron([x1,y1,z0;x2,y2,z1],m2,n2,p1);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
[fens1,gcells1] = mesh_hexahedron([x0,y1,z0;x1,y2,z1],m1,n2,p1);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
[fens1,gcells1] = mesh_hexahedron([x0,y1,z1;x1,y2,z2],m1,n2,p2);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
[fens1,gcells1] = mesh_hexahedron([x0,y1,z2;x1,y2,z3],m1,n2,p3);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
[fens1,gcells1] = mesh_hexahedron([x0,y2,z2;x1,y3,z3],m1,n3,p3);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
[fens1,gcells1] = mesh_hexahedron([x0,y3,z2;x1,y4,z3],m1,n4,p3);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
[fens1,gcells1] = mesh_hexahedron([x1,y3,z2;x3,y4,z3],m4,n4,p3);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
[fens1,gcells1] = mesh_hexahedron([x3,y3,z2;x4,y4,z3],m3,n4,p3);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
[fens1,gcells1] = mesh_hexahedron([x3,y0,z2;x4,y3,z3],m3,n5,p3);
[fens,gcells1,gcells2] = merge_meshes(fens1, gcells1, fens, gcells, eps);
gcells= cat(2,gcells1,gcells2);
% drawmesh({fens,gcells},'gcells','nodes','facecolor','red')
gv=drawmesh({fens,gcells},'gcells','facecolor','red');
rotate(gv);