Bill,
I especially appreciate your attempt to explain the
conversion between units and pixels. I will look further
into your examples and explanations.
I don't quite understand your following point,
because I thought glrect *was* a gl2 command. I am dealing
with pictures differently -- not with the glrects, as I
explain a little in my response to Oleg.
+ As Oleg already explained, this the way that gl2 work. An
+ isigraph does not have a permanent picture. If you do not
+ want to deal with a state machine, a possible workaround
+ is to use gl2 commands to draw the picture and save it to
+ a picture file, then assign this picture to an owner-draw
+ button.
+
Please see my comments to Oleg regarding the order
of the paint commands NOT mattering.
Brian
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm