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Re: How do I use octave gnuplot to html5 canvas terminal?
From: |
Ben Abbott |
Subject: |
Re: How do I use octave gnuplot to html5 canvas terminal? |
Date: |
Thu, 19 Jan 2012 15:39:25 -0500 |
On Jan 19, 2012, at 2:40 PM, Paul Perry wrote:
> On Thu, Jan 19, 2012 at 9:47 AM, Ben Abbott <address@hidden> wrote:
>
> On Jan 19, 2012, at 6:48 AM, Paul Perry wrote:
>
> > I am on a Mac OS X 10.6.8 Octave 3.4 and I would like to output a plot to
> > an html5 canvas? How do I send a command to gnuplot to set the terminal to
> > canvas? Is this supported?
>
> Octave doesn't yet include support for gnuplot's html5 terminal.
>
> I'll need to look at the appropriate gnuplot docs to include it. Can you tell
> me which version of gnuplot has this terminal ?
>
> If you're interested in trying to modify Octave to enable the htlm5 terminal,
> the sources to patch are ...
>
> __gnuplot_drawnow__.m: gnuplot_set_term()
> __gnuplot_drawnow__.m: gnuplot_is_enhanced_term()
>
> Once html5 is added there, you can produce a plot with ...
>
> plot (rand (3))
> drawnow ("html5", "plot.html5", false, "/dev/null")
>
> I've been considering modifying __gnuplot_drawnow__.m to support gnuplot
> terminals that are not explicitly supported by Octave. Perhaps this is an
> opportunity to me to do that.
>
> To add html5 support the print(), then the sources to modify include ...
>
> print.m
> __gnuplot_print__.m
>
> Ben
>
> Gnuplot 4.4 seems to have this terminal. In the documentation (
> http://www.gnuplot.info/docs_4.4/gnuplot.pdf ) section 83.7 (pp. 189) they
> describe the following commands:
>
> set term canvas name 'fishplot'
> set output 'fishplot.js'
>
> I installed a gnuplot-4.4.3-aqua-i386.dmg for Octave 3.4. Starting just
> Gnuplot and typing "set terminal canvas" worked. plot(rand(3)) resulted in
> an html output. So it looks like I'm close!
>
> I'd have to figure out how to modify the Octave files you list.
>
> Thanks.
>
> p.s. Here are some demos: http://gnuplot.sourceforge.net/demo_canvas/
>
> How do I find which version of gnuplot I installed with Octave 3.4
*** Please don't top-post. By replying below those who arrive late can follow
along. Thanks ***
Ok. Thanks. I was looking for a terminal named "html5". I didn't realize it was
called canvas. My gnuplot is 4.4.4 so I should be able to add this terminal.
I've added a feature request to the bug tracker.
https://savannah.gnu.org/bugs/index.php?35332
To see which gnuplot your Octave is using ...
cd (fileparts (which ("plot")))
__gnuplot_version__
ans = 4.4.4
I just tried the commands below
peaks ()
drawnow ("canvas", "peaks.html", false, "debug.gp")
This does render an html5 document. But the plot appears to be rendered in
pixels, not inches.
I made the follow change to debug.gp
$ diff -ua debug.orig.gp debug.gp
--- debug.orig.gp 2012-01-19 15:08:10.000000000 -0500
+++ debug.gp 2012-01-19 15:08:21.000000000 -0500
@@ -1,5 +1,5 @@
unset multiplot;
-set terminal canvas enhanced size 7.77777777778,5.83333333333
+set terminal canvas enhanced size 640,480
set output 'myplot.html';
set multiplot;
Then from a bash command line, I run the new version through gnuplot.
gnuplot debug.gp
The result rendered as expected in web browser.
Ben
- How do I use octave gnuplot to html5 canvas terminal?, Paul Perry, 2012/01/19
- Re: How do I use octave gnuplot to html5 canvas terminal?, Ben Abbott, 2012/01/19
- Re: How do I use octave gnuplot to html5 canvas terminal?, Paul Perry, 2012/01/19
- Re: How do I use octave gnuplot to html5 canvas terminal?,
Ben Abbott <=
- Message not available
- Re: How do I use octave gnuplot to html5 canvas terminal?, Ben Abbott, 2012/01/19
- Re: How do I use octave gnuplot to html5 canvas terminal?, Paul Perry, 2012/01/20
- Re: How do I use octave gnuplot to html5 canvas terminal?, Ben Abbott, 2012/01/20
- Re: How do I use octave gnuplot to html5 canvas terminal?, Paul Perry, 2012/01/20
- Re: How do I use octave gnuplot to html5 canvas terminal?, Ben Abbott, 2012/01/20
- Message not available
- Re: How do I use octave gnuplot to html5 canvas terminal?, Ben Abbott, 2012/01/20
- Re: How do I use octave gnuplot to html5 canvas terminal?, Paul Perry, 2012/01/27