From: Joel VanderWerf <vjoel@...>
Date: 2009-06-05T03:38:48+09:00
Subject: Re: Use methods from a library in my own class

Jason Lillywhite wrote:
> I want to create a class that uses the RubyGnuplot library that can
> create a plot using one simple command and only add options if so
> desired. Below is what I have done so far and I was wondering if someone
> could provide some opinion on my approach. I ran into a problem where I
> allow the user to add 3 options but what I really want is access to all
> the library's methods so colors and lineweights, etc can be changed if
> so desired. Is there a better approach than using a hash input like I'm
> doing? Thank you!
> 
> #For simple 2D line plots. File is called 'my_plotter.rb'
> 
> require 'gnuplot'
> class Data2d
>   def self.plot(x, y, options={})
>     Gnuplot.open do |gp|
>       Gnuplot::Plot.new( gp ) do |plot|
> 
>   plot.title  "#{options[:title]}"
>   plot.ylabel "#{options[:y_label]}"
>   plot.xlabel "#{options[:x_label]}"

Untested...

     options.each {|opt,val| plot.send opt, val}

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407