## Extension of /users/skv/testref/cd1/ED/cto/001/B1 ## common of two intersecting boxes ## inverted construction of one of the boxes 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 v5 0 0 1 vertex v6 1 0 1 vertex v7 1 .5 1 vertex v8 0 .5 1 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 bcommon result ba bb set square 4