Changes

== Input ==

== Input ==

The input comes in the form of [http://en.wikipedia.org/wiki/XML XML] [http://www.cs.umd.edu/users/meesh/420/spr07/part1/p11/node19.html]; a handy [[XmlUtility]] for parsing the input is provided [http://www.cs.umd.edu/users/meesh/420/spr07/part1/p11/node20.html].

The input comes in the form of [http://en.wikipedia.org/wiki/XML XML] [http://www.cs.umd.edu/users/meesh/420/spr07/part1/p11/node19.html]; a handy [http://wam.umd.edu/~bzoller/cmsc420/doc/cmsc420/xml/XmlUtility.html XmlUtility] for parsing the input is provided [http://www.cs.umd.edu/users/meesh/420/spr07/part1/p11/node20.html].

== Output ==

== Output ==

When required to print [http://en.wikipedia.org/wiki/XML XML] for output, you can use the same handy [[XmlUtility]] [http://www.cs.umd.edu/users/meesh/420/spr07/part1/p11/node21.html].

When required to print [http://en.wikipedia.org/wiki/XML XML] for output, you can use the same handy [http://wam.umd.edu/~bzoller/cmsc420/doc/cmsc420/xml/XmlUtility.html XmlUtility] [http://www.cs.umd.edu/users/meesh/420/spr07/part1/p11/node21.html].

== City Objects ==  

== City Objects ==  

== Visualization ==

== Visualization ==

Since this is a visual project, it will help to be able to visualize your data structures.  A nice graphics library called [[CanvasPlus]] [http://www.cs.umd.edu/users/meesh/420/spr07/part1/p11/node24.html] makes this visualization easy.

Since this is a visual project, it will help to be able to visualize your data structures.  A nice graphics library called [http://wam.umd.edu/~bzoller/cmsc420/doc/cmsc420/drawing/CanvasPlus.html CanvasPlus] [http://www.cs.umd.edu/users/meesh/420/spr07/part1/p11/node24.html] makes this visualization easy.