vertex v1 -1 0 0
vertex v2 9 0 0
vertex v3 1 1 0
polyvertex w v3 v2 v1 v3
mkplane s w
fixshape  r  s  -maxtaila 10  -maxtailw 0.7

checknbshapes  r  -vertex 3  -edge 3  -wire 1  -face 1  -shell 0  -solid 0  -compsolid 0  -compound 0
checklength r 9.0547440573886373
