How do I make a slider in a GL program?

[Jeff P. M. Hultquist]

In article <8512 at fs2.cam.nist.gov> blue at cam.nist.gov (Jim_Blue_x3809) writes:


jh> 1) Try Dave Tristram's panel library, which is available free from
jh> NASA Ames.  Unfortunately, to please the bean counters, it isn't
jh> available by FTP.  You'll need to write for a copy.
jh> 	panel-request at nas.nasa.gov
jh>
jh> 2) FORMS is another package.  It's available by anonymous FTP to
jh> archive.cs.ruu.nl and perelandra.cms.udel.edu, but I haven't tried it.
jh> I've heard it has less variety than the panel library, but is simpler.

JB>    I've tried both the Panel library and the Forms library. I prefer the
JB>    Forms library; in addition, it doesn't have any restrictions on 
JB>    re-distributing.

panel-request>   I agree.  :-)

Seriously though, either package is fine if all you want is
buttons and sliders.  Here is a run-down of the PROS and the
CONS of the two packages:

DISTRIBUTION:  the Panel-Lib must be obtained by signing a 
  release form which prohibits redistribution of either source
  or binary.  (Arg!  Too many lawyers!)  FORMS is directly 
  available and fully redistributable for non-commercial use
  (:-)  No lawyers!)

SUPPORT:  Both packages are free; and so neither package 
  comes with support.  The FORMS library is still being
  extended and enhanced;  ALL WORK ON THE PANEL LIB HAS 
  CEASED.

POWER:  The panel library is somewhat more flexible; it
  has multiply-handled sliders, strip-charts, meters, dials,
  and other what-not.

CLEANLINESS:  The code in the Panel-Lib is messy in places;
  if you are interested in hacking up new sorts of widgets,
  I would recommend the FORMS package.

DOCUMENTATION:  Both packages have fairly large programmers
  manuals.  Neither package has much prose in the source.

WHAT I RECOMMEND:  Use the FORMS package until IRIX4.0 is
  available, then bite the bullet and switch to X.
 

-- panel-request at nas.nasa.gov
   (Jeff Hultquist)
	



--
--
Jeff Hultquist				hultquis at nas.nasa.gov
NASA - Ames Research Center		(415) 604-4970
Disclaimer:  "I am not a rocket scientist."