-dpng gives "invalid command"
John B. Thoo
jthoo at yccd.edu
Tue Jul 14 18:04:01 CDT 2009
On Jul 14, 2009, at 2:06 PM, Ben Abbott wrote:
> On Jul 14, 2009, at 3:11 PM, "John B. Thoo" <jthoo at yccd.edu> wrote:
>
>> On Jul 10, 2009, at 11:55 AM, Thomas Treichl wrote:
>>
>>> John B. Thoo schrieb:
>>>> On Jul 10, 2009, at 11:29 AM, Thomas Treichl wrote:
>>>>> John B. Thoo schrieb:
>>>>>> Hi, Thomas.
>>>>>> gnuplot> show version long
>>>>>> G N U P L O T
>>>>>> Version 4.2 patchlevel 5
>>>>>> last modified Mar 2009
>>>>>> System: Darwin 8.11.0
>>>>>> Copyright (C) 1986 - 1993, 1998, 2004, 2007 - 2009
>>>>>> Thomas Williams, Colin Kelley and many others
>>>>>> Type `help` to access the on-line reference manual.
>>>>>> The gnuplot FAQ is available from http://
>>>>>> www.gnuplot.info/faq/
>>>>>> Send bug reports and suggestions to <http://
>>>>>> sourceforge.net/projects/gnuplot>
>>>>>> Compile options:
>>>>>> +READLINE -LIBREADLINE +HISTORY +BACKWARDS_COMPATIBILITY
>>>>>> +BINARY_DATA
>>>>>> -LIBGD
>>>>>> -NOCWDRC +X11 +X11_POLYGON +MULTIBYTE +USE_MOUSE
>>>>>> +HIDDEN3D_QUADTREE
>>>>>> +DATASTRINGS +HISTOGRAMS +OBJECTS +STRINGVARS +MACROS +IMAGE
>>>>>> DRIVER_DIR = "/usr/local/libexec/gnuplot/4.2"
>>>>>> GNUPLOT_PS_DIR = "/usr/local/share/gnuplot/4.2/PostScript"
>>>>>> HELPFILE = "/usr/local/share/gnuplot/4.2/gnuplot.gih"
>>>>>> gnuplot>
>>>>>> Thanks.
>>>>>> ---John.
>>>>>
>>>>> Then yes, you're right - you're missing support for *png. Your
>>>>> version of Gnuplot has not been compiled against libgd. libgd
>>>>> (and libpng and libjpg...) is the library that you need to
>>>>> create graphics in *png, *jpg and *gif.
>>>>>
>>>>> As your binary is in /usr/local I would expect you either
>>>>> compile and install Gnuplot for yourself or you use MacPorts?
>>>>> Either or, you need a binary that should give you something
>>>>> like this to save in *png on your Mac (compare compile options
>>>>> GD_* from my machine with yours):
>>>>>
>>>>> gnuplot> show version long
>>>>>
>>>>> G N U P L O T
>>>>> Version 4.2 patchlevel 5
>>>>> last modified Mar 2009
>>>>> System: Darwin 8.11.1
>>>>>
>>>>> Copyright (C) 1986 - 1993, 1998, 2004, 2007 - 2009
>>>>> Thomas Williams, Colin Kelley and many others
>>>>>
>>>>> Type `help` to access the on-line reference manual.
>>>>> The gnuplot FAQ is available from http://
>>>>> www.gnuplot.info/faq/
>>>>>
>>>>> Send bug reports and suggestions to
>>>>> <http://sourceforge.net/projects/gnuplot>
>>>>>
>>>>> Compile options:
>>>>> -READLINE +LIBREADLINE +HISTORY +BACKWARDS_COMPATIBILITY
>>>>> +BINARY_DATA
>>>>> +GD_PNG +GD_JPEG +GD_GIF +ANIMATION
>>>>> -NOCWDRC +X11 +X11_POLYGON +MULTIBYTE +USE_MOUSE
>>>>> +HIDDEN3D_QUADTREE
>>>>> +DATASTRINGS +HISTOGRAMS +OBJECTS +STRINGVARS +MACROS +IMAGE
>>>>>
>>>>> DRIVER_DIR =
>>>>> "/Users/Thomas/bin/Octave.app.3.2.0/Gnuplot.app/Contents/
>>>>> Resources/libexec/gnuplot/4.2"
>>>>> GNUPLOT_PS_DIR = "/tmp/gnuplot-i386/share/gnuplot/4.2/PostScript"
>>>>> HELPFILE = "/Users/Thomas/bin/Octave.app.3.2.0/
>>>>> Gnuplot.app/Contents/Resources/share/gnuplot/4.2/gnuplot.gih"
>>>>>
>>>>> Hope this helps somehow,
>>>>>
>>>>> Thomas
>>>> Hi, Thomas.
>>>> Yes, I compiled gnuplot myself. (I guess that was a mistake.)
>>>> Would the easiest thing for me to do now be to install gnuplot
>>>> from your octave-3.2.0-ppc.dmg?
>>>> If I drag-and-drop gnuplot from the .dmg into my Applications
>>>> folder, would I then have to do anything in particular to use it
>>>> instead of my previous installation?
>>>> Thanks again.
>>>> ---John.
>>>
>>> Hi John,
>>>
>>> why a mistake? From my point of view it is good if you try to
>>> compile things for yourself. You just need to set up some more
>>> libraries before compiling Gnuplot.
>>>
>>> Suggestion: If you already use Fink or MacPorts then this might
>>> be a better solution to install Gnuplot that way. If you have
>>> none of those or prefer Gnuplot.app beside others you can also
>>> use Gnuplot.app, yes. There nearly is nothing more to do:
>>> Drag'n'Drop Gnuplot.app from the *dmg to your Applications folder
>>> and then set another link to use Gnuplot.app from command line,
>>> too (maybe you should remove or rename or uninstall /usr/local/
>>> bin/gnuplot* before):
>>>
>>> sudo ln -s /Applications/Gnuplot.app/Contents/Resources/bin/
>>> gnuplot /usr/local/bin/gnuplot
>>>
>>> Finally just type 'gnuplot' in Terminal.app and check once again
>>> 'show version long'. Start your Octave and check
>>>
>>> octave-3.2.0:1> system ('which gnuplot')
>>>
>>> Best regards,
>>>
>>> Thomas
>>
>> Hi, Thomas.
>>
>> I installed your Gnuplot.app in my Applications folder and set the
>> following symlink:
>>
>> sudo ln -sfv /Applications/Gnuplot.app/Contents/Resources/bin/
>> gnuplot /usr/bin/gnuplot
>>
>> In gnuplot, I find that
>>
>> gnuplot> system ('which gnuplot')
>> /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot
>> gnuplot>
>>
>> so I think it all looks OK. I also tried to print a PNG and that
>> worked: yea! :-)
>>
>> The only difference I see immediately between using Gnuplot.app
>> and the gnuplot I had complied from source (besides now being able
>> to print a PNG) is that the redrawing in Gnuplot.app seems to be
>> slower, so that the following, which produced a pretty smooth
>> animation in gnuplot, produces a somewhat jerky animation in
>> Gnuplot.app:
>>
>> lT = length (T) - 1;
>> N = 10; % number of time intervals (frames) to plot (must
>> have N <= lT)
>>
>> if (N > lT)
>> error ('N > lT; need N <= lT');
>> end
>>
>> time = ones (1, N);
>> time(2:N+1) = floor ((lT/N)*(1:N)) + 1;
>>
>> for j = 1:N+1 % for "ode45"
>> plot (x, u(:,time(j)));
>> title (strcat ('time =', num2str ((tf-t0)*(time(j) - 1)/lT)));
>> % axis ([0 2*pi -1.5 1.5]);
>> axis([0 2*pi 2*min(real(u0)) 2*max(real(u0))]);
>> pause(wait);
>> end
>>
>> I'm not sure why.
>>
>> Btw, while I was at it, I also upgraded Octave to 3.2.0.
>>
>> Thanks for making this all very simple.
>>
>> ---John.
>
> This is due to a *feature* of 3.2. A patch has been committed.
>
> Ben
Ah, a feature. Thank you. :-)
And on Jul 14, 2009, at 12:42 PM, Thomas Treichl wrote:
> Hi John,
>
> are you using the same backends (which one of X11 or AquaTerm) for
> animations with gnuplot and Gnuplot.app? And which version of
> gnuplot is it?
>
> Best regards,
>
> Thomas
x11 in both cases, although I notice that this time the fonts look a
bit different when gnuplot (i.e., Gnuplot.app) is called from Octave
than when it's called outside of Octave. Btw, I deleted my previous
installations of gnuplot, and have only Gnuplot.app installed now
from the latest *dmg.
---John.
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