[comp.windows.x] X11 ARC Drawing

hoops@watsnew.waterloo.edu (HOOPS Workshop) (03/11/89)

I am new at sending news so please bear with me.

I have a question concerning X11 R2 vs X11 R3. The area concerned
is in drawing arcs. Here goes:
	Why is it that MIT changed from using integer arithmetic
in R2, to using floating point arithmetic in R3, in the routines
for drawing arcs? Did MIT have any problems with drawing ARCS in R2?

Thanks in advance,
	Andrew MacLean
	watmath!watsnew.waterloo.edu!hoops

rws@EXPO.LCS.MIT.EDU (Bob Scheifler) (03/13/89)

    Why is it that MIT changed from using integer arithmetic
    in R2, to using floating point arithmetic in R3, in the routines
    for drawing arcs?

To try and make them correct.

    Did MIT have any problems with drawing ARCS in R2?

Yes, they were not drawn correctly.