javascript node.js wrapper for gnuplot

##example

var gnuplot = require('gnu-plot');
gnuplot().plot([{
    data:[[0,0],[1,1],[2,0]]
}]);

#methods

##gnuplot() Spawn a new gnuplot process and return a plot object inheriting child_process.

var plot = gnuplot();

##plot.plot(plotsSettings) Plots with plotsSettings Array.

###plotsSettings Array of plot settings objects corresponding to different data series

[{
    title:<title>,
    style:<style>,
    color:<color>,
    data:<data>
},...]

####title default:
title of the data serie

####style default: "lines"
style of the data serie in :

lines
points
linespoints
surface
dots
impulse
boxes

see with clause of the plot command in gnuplot documentation for more.

####color shorthand for style:'linecolor rgbcolor ""'
color of the data serie
by name : execute gnuplot -e "show colornames" to view all possible values
by value : #RRGGBB, #AARRGGBB

####data data Array with structure

[[x0,y0],[x1,y1],[x2,y2], ...]

###Exemple

plot.plot([{
    title:"data3",
    style:"lines",
    color:"#00FF00",
    data:[[0,0],[1,1],[2,0]]
}]);

##plot.splot(plotsSettings) same as plot.plot(plotsSettings) for 3D plots

##plot.set(options) set or unset some gnuplot options.

###options object containing options as key:values.
See gnuplot documentation for a complete list of available options.

Notable options: ####fixed axes {xrange|yrange}:"[[<min>]:[<max>]]"

plot.set(xrange:"[0:]",yrange:"[-5:5]");

####output to image term:"{png|jpeg} size <x>,<y>", output:"<file>"

plot.set({term:"png size 800,600", output:"plot.png"});

####output to terminal term:"dumb [size <x> <y>]"

plot.stdout.pipe(process.stdout); //print gnuplot output to console
plot.set({term:"dumb 200 50"});
// or for a plot filling the terminal
plot.set({term:"dumb "+process.stdout.columns+" "+process.stdout.rows}); 

##plot.print(string) Write string to stdin of the gnuplot process.