Graph Tutorial
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                 Key: GEOT-3875
                 URL: https://jira.codehaus.org/browse/GEOT-3875
             Project: GeoTools
          Issue Type: Wish
          Components: docs, graph extension
    Affects Versions: 8.0-M2
            Reporter: Jody Garnett
            Assignee: Jody Garnett


The graph module is responsible for the bulk of questions this month; one thing 
that makes answering these questions hard is the lack of a test case or example 
program that could be used as a reference point.

With that in mind I would like to put together a simple "Graph" tutorial; 
please use the comments to outline the ideas of what you would like to see ... 
however a couple of guidelines:

1. We need a sample dataset - a *public* sample data set. I will consider the 
Tiger Roads dataset as a good reference point unless someone can think of 
something smaller (and more international). Is there a good way to extract just 
a bit of open street maps?
2. We step by step instructions need to be simple and straight forward and very 
well tested!
3. The tutorial has to be visual in some fashion
4. We can save many of the other goals of the graph module for the bonus 
questions (such as the differences between the path finding algorithms).
5. We follow a "code first" writing style; so no explaining things in the 
middle of the step by step instructions
6. We can put and explaining after the code; but we should save any detailed 
background on graph theory for the peanut gallery (or wikipedia). We want 
results in a tutorial - not theory.


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