Ruby Manor 2 - Manor Harder. "The Joy of painting with Ruby" A talk on using the ruby-processing library, a wrapper for the visual programming language processing.

1. Do I have the
right screen?

3. http://github.com/jasoncale/
manor-ruby-processing

4. Processing
with Ruby.

5. What is
Processing?

6. “Processing is an open source
programming language and
environment for people who
want to program images,
animation, and interactions.”

9. ruby-processing

10. Ruby-Processing is a Ruby
wrapper for the Processing
code art framework.
It's this thin little shim that
squeezes between Processing
and JRuby
http://github.com/jashkenas/ruby-processing

11. gem install
ruby-processing

12. jashkenas /
ruby-processing
On github

13. rp5

14. rp5 run my_art.rb

15. “Watch” code
to see live updates
of your sketches.

16. rp5 watch my_art.rb

17. Live sketch
interaction via
JRuby IRB.

18. rp5 live my_art.rb

19. Sharing
your sketches

20. Application &
Applet generators

21. rp5 applet my_art.rb

22. rp5 app my_art.rb

23. Configurable
control panels
sliders, menus etc.

25. So ...
an example.

26. Getting started

27. Defining a
basic sketch
as a class.

28. rp5 create my_art

29. class MyArt < Processing::App
def setup
# called once
end
def draw
# called every ‘frame’
end
end
MySketch.new :title => "My Sketch",
:width => 800,
:height => 600

30. Or without
a class ..

31. # no_class.rb
def setup
size(800, 600)
#...
end
def draw
#...
end

32. Processing

33. http://www.processing.org/reference/

34. Available as instance
methods to your
classes.

35. with added
Rubyish

36. loadImage()

37. load_image

38. $app.find_method(
‘load_image’
)

39. Extend with Custom
libraries (or just
download some)

40. library/jase/love.jar

41. class MyArt < Processing::App
load_library :love
def setup
@heart = Love.organ
end
....

43. Live example

44. Go make
something!

45. Thanks.
http://github.com/jasoncale/
manor-ruby-processing
@jasoncale
http://gofreerange.com