sewing result 0.1 a b +mint 0.01
-set square 1.88469e+07
+checkprops result -s 1.88469e+07
+checkshape result
checknbshapes result -vertex 476 -edge 748 -wire 273 -face 259 -shell 2 -solid 0 -compsolid 0 -compound 1 -shape 1759
checkmaxtol result -ref 0.080878557461246572