From: Nuralanur@...
Date: 2006-12-21T23:13:30+09:00
Subject: Re: Common point puzzle

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Dear Bill,
 
what about something like this ?
 
# an example set of graphs - hashes with names and sets of coordinates as  
values
all_graphs={'coarsest',[[1,2],[3,4]],'subgraph',[[1,2],[3,4],[1.5,2],[3.5,4]],
'subsubgraph',[[1,2],[3,4],[1.25,2],[1.5,2],[3.25,4],[3.5,4]]}
points_in_subgraph={}
all_graphs.each{|graph,points|
lazy_points=points-all_graphs['coarsest']
do_something_here_points=points-lazy_points
points_in_subgraph.update({graph,do_something_here_points})
}
 
work_done_in_subgraphs={}
points_in_subgraph.each{|k,v|
work_done_in_subgraphs.update({k,v.my_divisions})
 
}
 

class Array
def  my_divisions
#        ...perform your divisions on each point here
end
end
 
Best regards,
 
Axel

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