Re: [Plplot-devel] State of the Union

[Maurice L. <mj...@ga...>]

There's this plasma physicist at UT (Dr. Wendell Horton) that Geoff & I both
have worked with who had this remarkable gift.. in the course of 5 minutes he
could give you enough work through simple-sounding suggestions to keep you
busy for about the next year or two.  Remind you of anything? :)

Geoffrey Furnish writes:
 > Plframe Bugs:
 > ...
 >     2) First zoom in seems to often be a double display.  Very
 >        noticeable for big plots where it takes several seconds in dead
 >        time to display.  After the first zoom, the screen goes blank,
 >        then the plot flashes up, then immediately disappears, then
 >        more dead time, followed finally by a redisplay of the image.
 >        The second one "sticks".  Next zoom is okay.  (Still slow, but
 >        at least it only redisplays once).  But the first zoom down
 >        from the top, is a double hitter.
 > 
 >     3) C-r does a double redisplay too.  Once to go back to the size
 >        of the plot when there were scroll bars.  But then it notices
 >        the scroll bars are gone, so it resizes again and redisplays
 >        given the full screen real estate of the fully reseted
 >        plframe. 

Properly handling all the events here & filtering out the extraneous ones was
a huge headache when I was developing this originally IIRC.  After a lot of
hard-fought progress I got to a point where I threw up my hands in disgust and
said "good enough!".  Maybe now I could stomach working on it again, to try
for perfection, but I dunno.  When I'm next in the mood for some pain I'll
look at it.

 >     Probably we need a way for a Tcl script to set a "don't update"
 >     flag in plframe, then it can do the stuff with the Tk geometry
 >     manager to resize the plframe sans the scroll bars, then it should
 >     reenable event handling and tell plframe to redraw (just once).

Hmm...

-- 
Maurice LeBrun    mj...@ga...