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Geographic Information Systems (GIS)
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Extensions, Utilities, and Scripts available for GIS Software

Sites to search for the function you need
  • ESRI ArcScripts - Expand the power of GIS with many helpful scripts and extensions
  • Directions Magazine - Free tools (extensions, translators, scripts, fonts, etc..) for many different GIS programs.
  • Spatial Online -A collection of ArcView extensions and applications.


ArcGIS Tools and Scripting Help
  • EasyCalculate
    set of expressions for the ArcGIS field calculator
  • ET GeoWizards
    A set of functions for ArcGIS 8.1 and above packed in a user friendly wizard-type interface that helps users manipulate data with ease.
  • MXD Defragmenter
    reduce the size over overly large MXD files
  • Python Scripting Language Help
  • Spatial Ecology
    An extension for ArcGIS designed to automate and perform spatial analysis
    functions that cannot be conveniently accomplished with out-of-the-box
  • V-LATE
    Vector-based Landscape Analysis Tools Extension.
  • XTools
    contains useful vector spatial analysis, shape conversion and table management tools developed by the Oregon Department of Forestry


ArcView Tools
  • Spatial Tools ArcView Extension
    Spatial Tools is a collection of tools for Raster/Grid data. Its menus, tools, and buttons provide access to various spatial modeling and analysis capabilities such as: clipping, mosaicking,  merging grids, resolution alteration, data clean-up and spatial analysis. Note: Spatial Analyst  must be loaded simultaneously. Download from USGS.
  • Image to Map Transformer Utility
    If you need to georeference .bmp or .jpg images (aerials) to a map in ArcView, use this extension available from Seminole County GIS.
  • ArcView Stream Digitizing Extension
    Created to support on-screen (heads-up) digitizing of lines and polygons in stream mode
  • The Analysis Extension
    Available only on the Branner GIS workstations!
    This extension gives ArcView additional functions such as:  Update, Eliminate, Explode, Erase, Generalize, Split, MakeGrid, MoveXY, Rotate, Thiessen, and more.
  • Spatial News
    This page offers many ArcView scripts that can't be found anywhere else.
  • Piersson's ArcView Tools
    Various ArcView scripts, extensions, and other goodies.  Some are unique to this site.
  • Patch Analyst
    ArcView extension facilitating the spatial analysis of landscape patches.


ArcInfo Tools


General GIS Tools

Last modified: May 25, 2010

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