After compiling triangle.c  and  showme.c

triangle A.poly  generates  file  A.1.poly  A.1.node  A.1.ele

triangle -D -a0.01 -q30 -p B.poly  generates B.1.*

showme -p B.1.poly   wait for menus at bottom,  click on  ele

triangle -D -a0.1 -q30 -p C.poly   generates C.1.*

showme -p C.1.poly   wait for menus at bottom,  click on  ele

triangle -D -a2.0 -q45 -p D.poly   generates D.1.*

showme -p D.1.poly   wait for menus at bottom,  click on  ele


the B.1.node  and  B.1.ele  can be used for FEM
    B.coord        B.tri    by deleting sequence numbers
    B.bound                 is stripped from  B.1.poly