Joanne joannecheng

[ Launch: coloradowildfires ] 5753941 by joannecheng

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[ Launch: Tributary inlet ] 5811382 by joannecheng[ Launch: Tributary inlet ] 5811335 by brjadams

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Hello there! So you want to install Ruby-Processing and get started creating some fun programs.

You can simply type gem install ruby-processing from any installation of Ruby. Ruby-Processing requires JRuby to run, but it comes bundled with its own version of JRuby (granted, a very old version: 1.6.4). To run a sketch using an installed version of JRuby, just run your sketch with the --jruby flag. That way you can use installed gems in your sketches.

The version that lives on rubygems.org is the version of Ruby-Processing I used in my presentation. However, this version of Ruby-Processing is technically outdated: it uses Processing version 1.5.4, whereas the current version of Ruby-Processing is using Processing version 2.0.

There are a few reasons why I used an older version for my talk, and why I recommend people use the older version of Ruby-Processing:

It's easier to install: the current Ruby-Processing is too big for rubygems.org, so one needs to pull the repo down from github, install it on

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	# Text As Blueprint
	# http://www.openprocessing.org/sketch/60986

	class TextAsBlueprint < Processing::App
	def setup
	size 600, 600
	@text_typed = "hello world, how are you doing today"
	@centerX = width/2
	@centerY = height/2
	@shapeSpace = loadShape('data/space.svg')

	require 'json'
	require 'httparty'
	require 'sqlite3-ruby'

	def get_trips(line)
	url = "http://developer.mbta.com/lib/rthr/#{line}.json"
	JSON.parse(HTTParty.get(url).body)
	end

	puts "start"

	Bouncing Ball

	class BouncingBall < Processing::App

	def setup
	size 650, 800

	smooth
	stroke_weight 5
	@radius = 80