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Free Open Source

Content tagged with Free Open Source

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ZGrid ArctoolBox

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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. Download...

Tracts to Text

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The Tracts to Text Toolbox (TT-tool) is an ArcGIS Toolbox developed by the CGA that allows the user to select a State and extract its tracts number and all the adjacent tracts number. The result is saved as a text file. TTtool runs either with ArcGIS 9.3...

Time Snapshot Application

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The TSA is an ArcGIS Extension developed by the CGA that allows the user to create an image series based on time attributes in a shapefile or feature class. It runs within ArcGIS, allowing the user to set custom symbology, and exports a series of .jpg or...

Point Locate Tool

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This tool is aimed to create a point feature class or shapefile, using a point location table containing direction and distance fields, and a reference point spatial dataset. This tool requires some familiarity with ArcMap. Download it (37 KB zip)

Great Circle Distance Batch Calculator

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This tool for ArcGIS version 10 allows for the input of an unlimited number of origin/destination latitude, longitude pairs in CSV format, and calculates the distance between the origin and destination for each pair using the great circle distance formula...

Esri Maps for MS Office

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Create interactive maps of your data directly inside Excel with the Esri Maps for Office add-in. Quickly map addresses or locations and other geographic data. Add the map you created in Excel as a slide to your PowerPoint presentation - as a live...

QGIS

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QGIS is a free open source software package that is extremely powerful for GIS analysis, cartography, and much more. QGIS runs on Windows, Linux, and Mac. Previously known as "Quantum GIS," this free desktop GIS has numerous plugins and connections to...