Re: [Gnuplot-info] Invoking gnuplot from web browser...

[Nalin G. <nal...@ya...>]

Thanks for  the information. Also it is ok if browser delegate display to another xterm or X11 window. 

I did find one co-author of gnuplot doing same.
"http://www.bmsc.washington.edu/people/merritt/gnuplot_test.html"

- I tried this example and was able to invoke my webplot script after some
  iterations.

- But when I just for sake, wrote a simple file and at its top typed MIME header:
  version and content-type. 
 On opening in web browser, that did not work. 
 May be I need to pick up mime syntax.  (Any Hints ?)

- Image creation at webserver I wish to avoid, as web server is running
  on embedded networking device under stress, with less resources.

Lastly, I need take of logging of incoming data and display last few seconds window in graph/gnuplot. 

Thanks once again.

regards,
- nalin

Richard Henwood <r.h...@rl...> wrote: Hans-Bernhard Bröker wrote:

> Nalin Gupta wrote:
> 
>> I wish to learn, is it possible that web server streams some data (X,Y)
>> and web browser invoke gnuplot to display this dynamic data
> 
> No.  There are very serious security implications that forbid this kind
> of setup.
> 
> Running programs in or from your web browser requires completely
> different techniques than those used by desktop applications (like
> gnuplot).  For that kind of job you need Java.
> 

Hi Nalin and Hans-Bernhard,

The short answer, as Hans has stated is: NO.
The slightly longer answer is: why would you want to do this? there maybe a
better way to complete your goal - serverside gnuplot image generation?

The longer answer is: Maybe,

First, you could configure your webserver to send a customised mime type
when your stream is selected by your browser. You could then configure your
browser to delegate activity to another application (gnuplot) when it
encounters this type.

Secondly, there exist scrips which will allow the gnuplot to print from
STDIN. You may be able to connect STDIN to the web stream.

By achieving these two tasks, you may be able to get the behaviour you have
loosely specified.

cheers,
r,




-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Gnuplot-info mailing list
Gnu...@li...
https://lists.sourceforge.net/lists/listinfo/gnuplot-info


 				
---------------------------------
 Find out what India is talking about on  - Yahoo! Answers India 
 Send FREE SMS to your friend's mobile from Yahoo! Messenger Version 8. Get it NOW