16:38:33yitziAlso, it might be there for efficiency, but I don't understand why you need region-contains-position-p for the algebra. Wouldn't region-contains-region-p suffice?
16:38:56jackdanielthe first section is to summarize region-related protocols in mcclim
16:39:03yitziSince a point is a zero dimension region.
16:39:07jackdanielI'm not concerning myself with that in later sections
18:40:21jackdanielquestion: show we call rationalize on coordinates before points are created?
18:40:42jackdanielbecause otherwise we have somewhat funny behavior when we test for colinearity between points :)
18:41:33jackdanielwe can also switch to all-float coordinates strategy and incorporate epsilon that is reasonably large in line with a spirit that any three points may be connected with a sufficiently thick line
18:42:26jackdaniel(the good news is that there are no mistakes in the polygon-op utility)