From: Mike Brum <ruby@...>
Date: 2006-05-10T22:37:49+09:00
Subject: Image Processing Questions

I've been digging around trying to find a good hook for GD and so far I've
found

Gruby (1): http://raa.ruby-lang.org/project/gruby/
Gruby (2): http://gruby.sourceforge.jp/index.en.html#download
Ruby-gd: http://raa.ruby-lang.org/project/ruby-gd/
GD2: http://rubyforge.org/projects/gd2/

GD2 seems to be the most-current with the file date of March 4, 2006.
However, when I run 'gem install GD2' I get some strange errors along with
when I try to require GD2. 

C:\Documents and Settings\Mike>gem install gd2
Attempting local installation of 'gd2'
Local gem file not found: gd2*.gem
Attempting remote installation of 'gd2'
Updating Gem source index for: http://gems.rubyforge.org
Successfully installed gd2-1.1
Installing RDoc documentation for gd2-1.1...

lib/gd2/image.rb:681:25: ':' not followed by identified or operator
lib/gd2/palette.rb:55:40: ':' not followed by identified or operator
lib/gd2/palette.rb:93:28: ':' not followed by identified or operator
lib/gd2/palette.rb:94:30: ':' not followed by identified or operator
lib/gd2/palette.rb:95:29: ':' not followed by identified or operator
lib/gd2/palette.rb:96:30: ':' not followed by identified or operator
lib/gd2/palette.rb:97:29: ':' not followed by identified or operator
lib/gd2/palette.rb:189:28: ':' not followed by identified or operator
lib/gd2/palette.rb:190:30: ':' not followed by identified or operator
lib/gd2/palette.rb:191:29: ':' not followed by identified or operator
lib/gd2/palette.rb:192:30: ':' not followed by identified or operator

C:\Documents and Settings\Mike>irb
irb(main):001:0> require 'GD2'
RuntimeError: unknown error
        from C:/Program
Files/ruby/lib/ruby/gems/1.8/gems/gd2-1.1/lib/gd2.rb:29:in `initialize'
        from C:/Program
Files/ruby/lib/ruby/gems/1.8/gems/gd2-1.1/lib/gd2.rb:29
        from C:/Program
Files/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require'

        from C:/Program Files/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:182:in
`activate'
        from C:/Program Files/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:181:in
`activate'
        from C:/Program
Files/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:26:in `require'

        from (irb):1
irb(main):002:0> 

(condensed some whitespace)

What I'm wondering is 

1) What do people use for image processing? I've always used GD when I was
using PHP and it's just "what I'm used to". I'm not really married to any
particular library as long as it has all of the functionality that GD has.

2) Does anyone have any idea what went wrong with my GD gem install? I tried
this on two XP sp2 systems and it yielded the same exact result (wanted to
be sure it wasn't a localized problem). I also get the same results when I
require GD2 on both machines (the other machine has Ruby installed to
C:\ruby - so I know the path in the example above isn't an issue).

Any insight is greatly appreciated!

Thanks

-M