id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
31	psImageReadSection maybe better served as two functions	robert.desonia@…	eugene	"psImageReadSection was designed so that if the x,y parameters are exactly the
magical location of (-1,-1), it reads in the whole file instead of a subsection
(and ignoring parameters like nx,ny).

Using such ""magical numbers"" to significantly alter a function's behavior makes
things harder to use, as it is easy to forget these caveats for functions.

It may be better to have a psImageRead as well as a psImageReadSection, where
psImageRead reads whole images while psImageReadSection is just for reading
subsections of images."	enhancement	closed	high		PSLib SDRS	unspecified	minor	fixed