inout() in splancs working properly?

Rainer:

Thankyou for your very helpful report, showing clearly and replicably what
the problem is: sometimes points on the convex hull are included,
sometimes not. I agree that the issue is in ipippa.f, but am not too sure
why (yet). I am working on a revision of splancs at the moment - can I use
you to help test out this issue?

(Barry - is this so far back in the past that you don't have Ken
McElvain's C-code? Are we dealing with:

http://jedi.ks.uiuc.edu/~johns/raytracer/rtn/rtnv3n4.html#art23

Does the original comment:

">A remark: The whichquad function is not perfect. It doesn't handle

the boundary cases right (but as I said, that's only a problem
if the point lies on the polygon)."

still hold?)

Thanks again,

Roger

--
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Breiviksveien 40, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 93 93
e-mail: Roger.Bivand at nhh.no
and: Department of Geography and Regional Development, University of
Gdansk, al. Mar. J. Pilsudskiego 46, PL-81 378 Gdynia, Poland.