RE: IDL still not working....When does Beta 4 come out ??
RE: IDL still not working....When does Beta 4 come out ??
- Subject: RE: IDL still not working....When does Beta 4 come out ??
- From: Karl Schultz <email@hidden>
- Date: Mon, 5 May 2003 10:40:29 -0600
> -----Original Message-----
> From: Travis Barman [mailto:email@hidden]
> Sent: Monday, May 05, 2003 10:07 AM
> To: Karl Schultz
> Cc: 'Michele Zundo'; email@hidden
> Subject: RE: IDL still not working....When does Beta 4 come out ??
>
>
>
> Hello,
>
> I'm also interested in having IDL working with Apple X11.
>
> However, I just visited the tech-tip #3444 page and all I see
> is:
>
> Update 3/21/03: Apple recently released version 0.3 of the X11
> beta. Several IDL users have posted messages to the Apple X11
> mailing list reporting problems with image displays, probably in
> Direct Graphics. Version 0.3 introduces 8-bit PseudoColor visual
> support, which may be related to the reported problems. IDL users
> may be better off running version 0.21.
>
> No offense, but this isn't much of an "explanation" or
> "workaround" for users of X11 0.3. Or, maybe I'm not able to
> read between the lines :)
I was referring to the "known problems" section a little further down the
page. The original poster didn't say much about the problem, and the first
thing that came to mind was the IDLDE problem discussed in this section.
The original poster did say that they did not have a problem with 0.2, so my
guess turns out to be wrong. Sorry about that.
> I see that your email address includes "rsinc". Have you
> been able to use IDL + X11 v0.3?
Yes, with some restrictions:
I am aware of two problems with IDL and X11 Beta 3:
1) The IDLDE fork problem discussed in the "Known Problems" section of the
tech tip. Note that this was also a problem in Beta 0.2.
2) Apple added 8-bit PseudoColor visual support in Beta 0.3. There are
apparently some problems with this support when applications mix window
depths. In the IDL world, this can happen when the IDL user application
forces or uses 8-bit pseudocolor support while using Direct Graphics. I've
reported this problem to Apple via their problem reporting system, and as I
understand it, Apple understands the problem and is working on a fix. IDL
users can avoid the problem by not forcing the usage of 8-bit Direct
Graphics windows. The feasibility of avoiding the 8-bit windows depends a
lot on the IDL user application. If the application depends heavily on
using 8-bit windows, this may be difficult. In some cases a user may be
able to use or change the DEVICE command to avoid the problem. OTOH, if the
application works with 8-bit image data, it would take some work to migrate
the app to 24-bit. It is hard to quantify the difficulty with getting
around the problem without knowing the application and/or what the user is
doing. That's why there's no cookbook-style workaround.
>
> Despite these problems, I'm still very happy that IDL is
> supporting Mac OS X and that Mac is working to make X11
> available to its users.
>
> thanks for the post.
> t.
>
> Department of Physics
> Wichita State University Phone 316.978.5260
> Wichita, KS 67260-0032 Fax 316.978.3350
> EMAIL: email@hidden
>
> On Mon, 5 May 2003, Karl Schultz wrote:
>
> > There is a known problem with running the IDLDE with Beta 3.
> > Please see TechTip 3444 on the RSI website for an explanation and a
> > workaround.
> >
> > If your problem is something different, then please report
> it to RSI.
> >
> > > -----Original Message-----
> > > From: Michele Zundo [mailto:email@hidden]
> > > Sent: Monday, May 05, 2003 6:41 AM
> > > To: email@hidden
> > > Subject: IDL still not working....When does Beta 4 come out ??
> > >
> > >
> > > Dear Apple,
> > >
> > > I have still not found a way to have IDL work OK with Beta 3
> > > and Beta 2
> > > (which worked) is not anymore there to download....
> > >
> > > When is Beta 4 (with IDL support) coming out ? It is
> important for us
> > > otherwise it would mean remove X11 and back to Oroborus...
> > >
> > > ***************
> > > Michele Zundo
> > > ESA Ground segment Engineer
> > > Noordwijk, The Netherlands
> > > _______________________________________________
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> > > X11 for Mac OS X FAQ:
http://developer.apple.com/qa/qa2001/qa1232.html
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> > http://developer.apple.com/bugreporter
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