## Extension of /users/skv/testref/cd1/ED/cto/003/D1 dset r sqrt(2) dset k r/2 vertex v1 0 0 0 vertex v2 1 0 0 vertex v3 1 1 0 vertex v4 0 1 0 edge e1 v1 v2 edge e2 v2 v3 edge e3 v3 v4 edge e4 v4 v1 wire wa e1 e2 e3 e4 mkplane fa wa prism ba fa 0 0 1 vertex v3 -0.25 -0.25 0 vertex v4 2 -0.25 0 edge eb v3 v4 prism fb eb 0 k-0.25 0 prism bb fb 0 0 1 vertex v5 -0.25 -0.25 0 vertex v6 2 -0.25 0 vertex v7 2 k 0 vertex v8 -0.25 k 0 edge e5 v5 v6 edge e6 v6 v7 edge e7 v7 v8 edge e8 v8 v5 wire wb e5 e6 e7 e8 mkplane fb wb prism bb fb 0 0 1 trotate bb -0.25 -0.25 0 0 0 1 45 bcommon result ba bb set square 4.41421