Center for Geographic Analysis Harvard University
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CGA Tools & Code

Below is a listing of GIS tools and code developed by the CGA team. Please feel free to contact us if you need help using them.

class="node-title">ZGrid ArctoolBox

This tool adds four new columns to a grid polygon feature class in a geodatabase, and automatically identifies the four neighboring polygons, extracting a user selected text field to populate the four new columns with the neighboring tile's name.

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