Re: How do I use octave gnuplot to html5 canvas terminal?

[Ben Abbott]

On Jan 20, 2012, at 11:25 AM, Paul Perry wrote:

> On Fri, Jan 20, 2012 at 9:49 AM, Ben Abbott <address@hidden> wrote:
> 
> On Jan 20, 2012, at 8:26 AM, Paul Perry wrote:
> 
> > On Fri, Jan 20, 2012 at 8:07 AM, Ben Abbott <address@hidden> wrote:
> >
> > On Jan 20, 2012, at 7:45 AM, Paul Perry wrote:
> >
> > > Hopefully one last request:  how do we pass additional arguments to the 
> > > canvas terminal?  I'd like to pass a 'jsdir' string and 'name' parameter 
> > > as in:
> > >
> > > set terminal canvas enhanced mousing size 1120,840 jsdir './js/' name 
> > > 'file.js'
> > >
> > > drawnow() doesn't take these parameters.  I could not get the 'set' 
> > > command to work:
> > >
> > > set(terminal,"canvas","jsdir","./js/","name","file.js","size","1120,840")
> > >
> > > hints?
> > >
> > > Thank you.
> >
> > You'll need to save the gnuplot commands and edit them yourself.
> >
> > What does the "jsdir './js/' name 'file.js'" part do ?
> >
> > Is this something that should be included by default ?
> >
> > Ben
> >
> >
> > By default the .js and .css files are set to "/tmp/gnuplot-some-dir/etc", 
> > requiring the html to be edited every time.  The jsdir parameter allows you 
> > to set the javascript directory, in my case "./js/" .
> >
> > The "name" parameter outputs the canvas as a javascript file which can then 
> > be included in a more complex html file.  This will allow us to just modify 
> > and include the canvas instead of re-editing the html file every time.   
> > This change alone, would allow us to run the Octave commands and then just 
> > reload the html to view an interactive plot instead of modifying the octave 
> > output to gnuplot every time.
> >
> > Thx
> 
> Ok, I understand. I don't see a good way to have Octave handle this. However, 
> I do have a work around for you.
> 
> I've attached a bash shell script that will fix the gnuplot terminal setting 
> for you.
> 
> To get the result you are looking for, create your plot and save the 
> plotstream.
> 
>        peaks ()
>        drawnow ("canvas", "/dev/null", false, "plotstream.gp")
> 
> Then use the bash script to modify gnuplot terminal command in "plotstream.gp"
> 
>        [status, output] = system ("add_js_to_canvas_terminal.sh");
> 
> If you get an error, make sure the script is executable. From the terminal 
> you can type ...
> 
>        chmod 755 add_js_to_canvas_terminal.sh
> 
> Finally, pass the plotstream through gnuplot to produce your html5 file.
> 
>        [status, output] = system ("gnuplot plotstream.gp");
> 
> My javascript isn't set up the way yours is, so passing plotstream.gp through 
> gnuplot produces an error for me. However, the terminal command matches the 
> one you mentioned above. So this should work for you.
> 
> Ben
> 
> Thank you Ben!  I should of thought of that.  Can you attach the .sh file? I 
> didn't see it. Thx
> 

Opps, I forgot to attach it.

add_js_to_canvas_terminal.sh
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