id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
765	row,col / x,y / i,j	eugene	David.Robbins@…	"I am quite concerned about the inconsistency in psLib of col,row, x,y, etc in
the code.  In a simple examination, I have found two cases where these concepts
are mis-used.  Just to be extremely clear:  x (and the index i) should always be
used to refer to a COLUMN and y should always be used to refer to a ROW. 
Arguments to functions which refer to both x and y should always be in the order
(x,y).  Coefficients associated with an X refer to an image COLUMN, etc.  The
ONLY place where we have to be very careful about the order is in the
image->data.XXX[row][col] elements.  The image elements are in the order [ROW][COL].

I have found these types of errors in:

psImageSet
psImageGet
psImageFitPolynomial

I find it hard to understand why the testing that is being done has not caught
these errors."	defect	closed	high		mathtypes	0.11.0	normal	fixed