James Gray
12/1/2006 4:57:00 PM
On Dec 1, 2006, at 10:50 AM, Kurt Hindenburg wrote:
> On 12/1/06, Ruby Quiz <james@grayproductions.net> wrote:
>> [Editor's Note: I added a script to dump your turtle graphics
>> output to PPM
>> image files, for those that don't have TK up and running. It
>> works identically
>> to Morton's turtle_viewer.rb, save that it writes output to a PPM
>> image file in
>> the current directory. For example, to output the included tree
>> image, use
>> `ruby turtle_ppm_writer.rb samples/tree.rb`. --JEG2]
>>
> Hello,
> Does the above work for everyone?
>
> (~/turtle_graphics) > ruby turtle_ppm_writer.rb samples/tree.rb
> turtle_ppm_writer.rb:47:in `run_code': undefined method `each' for
> nil:NilClass (NoMethodError)
> from turtle_ppm_writer.rb:27:in `initialize'
> from turtle_ppm_writer.rb:75:in `new'
> from turtle_ppm_writer.rb:75
>
> ruby 1.8.5 (2006-08-25) [powerpc-darwin8]
Making it work is the quiz. You need to finish the turtle.rb file so
a track() is returned to draw.
James Edward Gray II