| Re: GDL? [message #43048] |
Thu, 24 March 2005 00:45  |
Chris Lee
Messages: 101
Registered: August 2003
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Senior Member |
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In article <4241440a@news.nwl.ac.uk>, "Unknown" <wmc@bas.ac.uk> wrote:
> "Christopher Lee" <cl> wrote:
>> Plplot has a number of drivers which (on Debian at least) are
>> distributed as separate packages to the plplot library. From memory,
>> there are xwin,
>> ps, gd, gtk packages. You need the xwin package to plot to the screen.
>
>> I don't know what version of plplot you're using but if it's > 5.10 (I
>> think) it should have dynamic loading of the xwin device, which implies
>> it might be a separate package.
> Hmmm... I did build it in a hurry, to see if I could get a built thing
> that worked, rather than paying attention along the way. So... do I need
> to look at the Plplot build to check the drivers got built properly?
> -W.
>
If you built the PlPlot from source, then you will more than likely need
to compile the pl-xwin driver yourself aswell. If you used a packaged
(RPM) plplot I would hope that something resembling a usable
core+driver was provided :( Since that doesn't appear to be the case,
have a look for the xwin driver as a separate RPM. You probably don't
need to change your Linux distribution yet...
On the plus side, you did get it to compile, which means your 90% of the
way there.
Chris.
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| Re: GDL? [message #43069 is a reply to message #43048] |
Wed, 23 March 2005 06:17  |
Ken Mankoff
Messages: 158
Registered: February 2000
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Senior Member |
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On Wed, 23 Mar 2005 wmc@bas.ac.uk wrote:
> "Christopher Lee" <cl> wrote:
>> Plplot has a number of drivers which (on Debian at least) are
>> distributed as separate packages to the plplot library. From
>> memory, there are xwin, ps, gd, gtk packages. You need the xwin
>> package to plot to the screen.
>
>> I don't know what version of plplot you're using but if it's >
>> 5.10 (I think) it should have dynamic loading of the xwin device,
>> which implies it might be a separate package.
>
> Hmmm... I did build it in a hurry, to see if I could get a built
> thing that worked, rather than paying attention along the way.
> So... do I need to look at the Plplot build to check the drivers
> got built properly?
Yes, that, or switch to a linux distribution that resolves
dependencies for you.
-k.
--
http://spacebit.dyndns.org/
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| Re: GDL? [message #43074 is a reply to message #43071] |
Tue, 22 March 2005 05:50 |
Chris Lee
Messages: 101
Registered: August 2003
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Senior Member |
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In article <423ff1a0@news.nwl.ac.uk>, "Unknown" <wmc@bas.ac.uk> wrote:
> Ken Mankoff <mankoff@gmail.com> wrote:
> I've built it and played with it a little but not much. I have trouble
> with plots: if anyone can tell me the solution to: wmc> plot,[0,1]
> PLPlot abort handler: plInitDispatchTable: Could not open drivers
> directory *** PLPLOT ERROR ***
> plInitDispatchTable: Could not open drivers directory, aborting
> operation Requested device xwin not available
> I'd be grateful. This is from redhat linux BTW. -W.
Hi,
Plplot has a number of drivers which (on Debian at least) are distributed
as separate packages to the plplot library. From memory, there are xwin,
ps, gd, gtk packages. You need the xwin package to plot to the screen.
I don't know what version of plplot you're using but if it's > 5.10 (I
think) it should have dynamic loading of the xwin device, which implies
it might be a separate package.
Chris.
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| Re: GDL? [message #43089 is a reply to message #43080] |
Mon, 21 March 2005 16:06 |
Ken Mankoff
Messages: 158
Registered: February 2000
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Senior Member |
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On Mon, 21 Mar 2005, Y.T. wrote:
> My employ in the space sciences appears to come to an end soon and
> with it access to IDL - the single most comfortable tool tool I've
> ever used on a computer (for 12 years and counting).
Unless you happen to be a student. IDL recently (a few years ago
now?) started supporting an $99 USD student edition.
> So I've been looking around and stumbled over "GDL - the Gnu Data
> Language". It looks like a worthy goal and if it were only 80%
> compatible with IDL, I'd be more than happy.
>
> So here's the question: has anybody actually used GDL?
I used it. I don't use it often, but I keep it installed and
up-to-date (via fink (unstable cvs), so it isn't 100% up-to-date) on
my OS X boxes. It works fine for me for line plotting and simple
math.
> Someone who has used IDL in the past and can give a decent
> overview over the pros and cons?
It does not support the MAP_* routines which is the main reason I
don't use it much. I haven't done any speed trials in it.
> I see the latest GDL version is 4 or 5 months old
No, I think it is *much* more actively developed than that. Maybe a
few weeks old?
> does that mean nobody is working on it or that it is stable?
The dev team is small AFAIK. It is stable in that I haven't had any
crashes with the little bit of usage I have given it. Recent posts
by the developer implies it is more stable than IDL. Well, maybe not
more stable, but it gracefully handles a few places where IDL
segfaults.
> What are the major incompatibilities (if any)?
The large chunk (> 20%) of IDL that is not implemented yet.
I hope someday it will support Aqua. Maybe when Marc implements the
GUI code he will use wxWidgets? That would be great.
But I think the best way to answer your question is to download and
run it. If you cannot for some reason, and would like to send me a
test procedure, I'll run it for you.
-k.
--
http://spacebit.dyndns.org/
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| Re: GDL? [message #43229 is a reply to message #43048] |
Thu, 24 March 2005 08:47 |
wmconnolley
Messages: 106
Registered: November 2000
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Senior Member |
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"Christopher Lee" <cl> wrote:
> If you built the PlPlot from source, then you will more than likely need
> to compile the pl-xwin driver yourself aswell. If you used a packaged
> (RPM) plplot I would hope that something resembling a usable
> core+driver was provided :( Since that doesn't appear to be the case,
> have a look for the xwin driver as a separate RPM. You probably don't
> need to change your Linux distribution yet...
Thanks for the advice. On further poking around, it looks like the
problem was the install step, which failed because I didn't have javac
available. Re-configuring with --disable-java got round that, and GDL
now fails with can't open display when I try to use xwin, which is fair
comment since I'm doing this over a modem! Using the ps device instead
and then converting to png I get, from plot,[0,1], this:
http://www.antarctica.ac.uk/met/wmc/gdl.png
which is a start. Go go GDL!
-W.
--
William M Connolley | wmc@bas.ac.uk | http://www.antarctica.ac.uk/met/wmc/
Climate Modeller, British Antarctic Survey | Disclaimer: I speak for myself
I'm a .signature virus! copy me into your .signature file & help me spread!
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