[R] any good way to convert sp class objects to splancs object

[Dylan Beaudette]

Greetings:

are there any simple ways to convert an sp class object to a splancs ppp class 
object, outside of reading the coordinates and computing a bounding box?

cheers,
-- 
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341