Thanks to all of you who answered my questions. The replies I
got greatly stimulated my thinking in that area. If you are
interested in seeing what some of the answers I received look like,
just email me.
Best Regards
Francois Quesnel
Department of Land Resource Science
University of Guelph
Guelph, Ontario, N1G 2W1
Vox: (519) 824-4120 x8593
Fax: (519) 824-5730
Email: fquesnel@lrs.uoguelph.ca