Repository navigation
Provide support for starting gnuplot process and keep it running #3
Description
What I mean is, provide support for doing:
gnuplot = Gnuplot.open
....
gnuplot.close
This way you can start gnuplot and have the process running and do multiple graphs from different parts of your code. This avoids starting up a gnuplot process for each plotting operation.
This could be achieved by simply doing:
if (block_given?) IO::popen( cmd, "w") { |io| yield io }
else IO::popen( cmd, "w")
at the openmethod
Activity
rdp commentedon Jun 30, 2010
I'd be happy to accept a pull request...or if not I might get around to it eventually.
rdp commentedon Jul 1, 2010
oh I see what you're saying now...
something like
protobits commentedon Jul 1, 2010
I don't understand that syntax =b
rdp commentedon Jul 26, 2010
is gnuplot slow for you currently?
protobits commentedon Jul 26, 2010
Hi, actually, I'm not using ruby_gnuplot for my project. I was just assessing the capabilities of your code so I could see if it would serve my needs.
I ended up implemeting a very simple gnuplot interface in my ruby-gsl-ng code.
In any case, if you need to update the plot often (like I do, in a robotics simulator I developed) restarting the gnuplot process is out of the question. I've even had to resort to using binary data to speed things up.
rdp commentedon Jan 30, 2011
leaving open since I think you can do multiple plots, as described...so maybe someday would make for a speedup.