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Free Geospatial Software

Forestry GIS (fGIS)

Forestry GIS (fGIS™) is a Mapping Utility for Resource Managers and a compact shapefile editing program, digitizer and GIS data query tool for Windows®. Designed for operational field managers like foresters and wildlife biologists, fGIS has essential tools tailored for precision mapping on a desktop computer. Use fGIS to customize layered views including aerial photos and other imagery, draw map objects, query and search spatial data, annotate maps for printing, and much more. The standalone program is unlimited, producing shapefiles and geo-referenced images compatible with commercial software in an enterprise GIS framework. Forestry GIS is meant to be part of a hierarchy of GIS tools, with ArcView/ArcGIS being one of the standards for advanced GIS users.

Forestry GIS (fGIS™) can be downloaded:

You'll find that fGIS is relatively simple to use:

* Open and view geo-referenced raster images including digital orthophotos and topographic maps in MrSID®, ECW, BIL, JPG, TIFF, GeoTIFF, BMP and PNG file formats.

* Open and view vector data in ESRI® shapefile (SHP) and e00 files, AutoCAD DXF™, MapInfo® MIF, Microstation® DGN, DLG-O, TIGER2000/line and TatukGIS SQL (ttkls) file formats. An advanced R-Tree index system allows easy viewing of large (100+ MB) data files.

* Create and edit point, line and area shapefile objects and their associated data attribute tables.

* Designate the direction and distance of the next leg of a line or polygon with the COGO-like Traverse Tool. Directions can be entered in decimal degrees or degrees-minutes-seconds (handy for plotting deeds or laying out a field data collection route).

* Split a polygon into smaller units by drawing a line with the Split Shapes Tool. Area and perimeter attributes of forest cover type subunits are automatically updated.

* Customize map properties including line width and color, area fills, label fonts and positions, image transparency, thematic rendering of data and more.

* Measure areas and distances. fGIS reports distances and areas in English units (feet, miles and acres) and metric units.

* Display data at user-specified scales.

* Extract geo-referenced images of selected portions of a screen display.

* Export part of a vector layer and save it as a new file.

* Manage large data sets organized in dBase tables with the "Load Library Layer" utility.

* Join dBase and Access tables to shapefile attribute tables.

* Create point shapefiles from comma delimited text files with x|y coordinates.

* Print the map with three flexible output options. The Simple Print command will add a map title, subtitle, footer and the scale to the page. The Send Map to Word command will send an image of the view at a user specified resolution and scale to Microsoft® Word. A third option through the Export Image tool will send the map to a technical illustration/page layout module called Diagram Designer. You can add headers, legends, annotations and non-spatial symbols from template palettes in the Diagram Designer module.

DNR Garmin

DNR Garmin was developed by the Minnesota Department of Natural Resources to provide users the ability to directly transfer data between ArcView 3.x GIS and Garmin GPS handheld receivers. Using this extension a user can use point features (graphics or shapefile) and upload them to the GPS as WayPoints. Line and Polygon Graphics or shapes can be uploaded to the GPS as TrackLogs or Routes. Conversely, WayPoints, Tracklogs, and Routes collected using the GPS can be transferred directly to ArcView and saved as Graphics or Shapefiles.

This extension has a real-time tracking mode that allows users to follow their progress on the ground within an ArcView View document. This real-time track log can be saved as either points or lines as a set of graphics or in a shapefile.

DNR Garmin is a set of companion programs, one an ArcView 3.x Extension and one a Visual Basic (VB) program. The VB Program is the translator between the GPS and ArcView since ArcView cannot directly communicate with the COM port. The VB Program can be run in stand-alone mode, without ArcView.

Functionality Highlights

At this time this extension contains the following functionality:

Download Waypoints/Tracks/Routes Download waypoints, tracks, and routes from Garmin GPS and save as ArcView Shapefiles or Graphics
Real-Time Tracking Collect real-time locational information and store as graphics or shapefile
Track to Point, Line, Polygon Converts a Garmin Track log to an ArcView graphic or shapefile
Line, Polygon to Track Converts an ArcView line or polygon to a Garmin Track
Add Documentation to Features Adds basic documentation to ArcView themes including Name, GPS Model, Date, Agency, etc.
Calculate CEP Determine Circular Error Probability rings for Error estimation
USB Connectivity! Speed up your downloads by a factor of about 10 with new USB connectivity option!

 

 

 

 

 

 

 


Garmin GPS's download points in Geographic Coordinates referenced to the WGS84 Horizontal Datum. The DNR Garmin VB program now has a full projection engine that also performs Datum conversions. You can even create new custom projections and use those. If you can set-up the projection in ArcView 3.x you can export that projection and use it with the DNR Garmin.

LandSurf 

LandSerf is a freely available Geographical Information System (GIS) for the visualisation and analysis of surfaces. Applications include visualisation of landscapes; geomorphological analysis; gaming development; GIS file conversion; map output; archaeological mapping and analysis; surface modelling and many others. It runs on any platform that supports the Java Runtime Environment (Windows, MacOSX, Unix, Linux etc.) 

Functionality Highlights
 
Handles multiple surface models - raster digital elevation models (DEMs), vector Triangulated Irregular Networks (TINs), contours and metric    surface networks (MSNs).ide by side DRG image viewing (edgematching - making the collar transparent). 
Interactive 3D viewing and 'flythrough' of surfaces on platforms that support OpenGL.
A range of powerful and interactive visualization techniques including lighting/shade models, multiple image blending and dynamic graphical query.
Raster and vector transformation including image rectification and map projection.
Multi-scale surface processing based on quadratic regression.
Fractal and polynomial surface generation for modeling and simulation.
Multi-scale parameter and feature extraction (slope, aspect, curvature etc.).
Import and export of common raster and vector formats.
Integration with Garmin GPS receivers.

Click here to download the software. 

Zip Utility

All NSDD data is in .zip format. If you do not have a zip utility, you can download the file.

DLGV32Pro

From the USGS site, a free viewer, DLGV32PRO can be downloaded to view files such as *.tif, *.drg, and *.dem. 

MrSIDViewer

The free MrSID Viewer is licensed from International Land Systems, Inc. and is a cooperative product with Lizardtech, Inc. ILS can be reached over the Internet at http://www.landsystems.com. The MrSID Viewer displays images that have been compressed into the MrSID format.  Currently, the MrSID Viewer is available for Windows 95/NT, IRIX 6.2, Linux 2.0.32 and Solaris 2.5.1.  The MrSID Viewer can be download from Lizardtech, Inc. (Version: 2.0.0.50).   The SAL has created a lesson (PDF format) that explains how to subset a MrSID image and export it as a TIFF Image file. 

ERDAS ViewFinder 2.1

ERDAS ViewFinder is a free viewing tool provided by Leica Geosystems' GIS & Mapping Division.  It provides basic image viewing and manipulation capabilities, including the ability to: 

*Display ERDAS IMAGINE *.img, *.tif, and *.sid image files.
*Overlay, smooth, sharpen, enhance, and reproject multiple images on-the-fly.
*Reproject imagery from its existing projection system to one of many predefined output datums and projections, creating files in either the IMG or GeoTIFF formats.

The ERDAS ViewFinder can be downloaded from ERDAS.        

MapSheets Express v1.3

MapSheets Express is a FREE viewing and mapping tool for working with imagery and vector map data.

*Bring in data from ERDAS IMAGINE®, ESRI's ArcView and Arc/Info, TIFF, JPEG, and now MrSID, as well as imagery web sites like TerraServer.
*Have multiple windows open at once and explore the data with easy-to-use viewing tools, such as dynamic zoom, pan and measure.
*Make a map in minutes using wizards - and edit the map's contents live on the page. Enhance your map with annotation, text, legends, grids and scale bars.
*Copy the map to a document or presentation - in Microsoft Word, Microsoft PowerPoint, or Corel WordPerfect. Save the map in HTML for use on a Web site or Intranet.
*Reproject imagery from its existing projection system to one of many predefined output datums and projections, creating files in either the IMG or GeoTIFF formats.

Mapsheets Express v1.3 can be downloaded from ERDAS.  

DRG-Tools (v3.7) 

This ArcView 3.x extension provides specific utilities for use with most digital raster graphic (DRG) images. A DRG is a scanned image of a USGS standard series topographic map. For more information about DRG products and ordering, visit the DRG Program home page at: http://topomaps.usgs.gov/drg/  The current DRG-Tools extension provides these options: 

* Side by side DRG image viewing (edgematching - making the collar transparent). 
* Isolate particular DRG image features, such as contours or hydrography. 
* Toggle DRG image colors to/from transparent. 
* Display DRG image colors in grayscale. 
* Restore default DRG image colors. 
* Display transparent DRG colors as white. 
* Save a colormap file for the active DRG image (including transparent colors). 
* Load a colormap file for DRG images (including transparent colors). 
* Make all DRG images visible. * Activate (highlight) all DRG images. 
* Build an image catalog from DRG images in the view. 
* Convert active DRG images to grids (transfers DRG colors to grid theme). 
* Note: Spatial Analyst is NOT REQUIRED to use the core features of the extension. 

An archive of DRG-related *.clr, *.avl, and *.avp files is also included.... the complete description can be found in the readme.txt file included in the zipfile. 

MultiSpec Remote Sensing Software

This software was developed at Purdue University and is available for free download. MultiSpec© software was developed for research and has been changed over time as users have offered suggestions through feedback. This has made it more user-friendly. This software will probably continue to change and be updated. Be sure to watch the website for new versions.

MultiSpec© has several advanced capabilities:
1. perform supervised and unsupervised classification for mapping zones,
2. create a new index or image from an existing image,
3. view the spectral data for a specific area in graph form and create training samples for supervised classification in individual fields,
4. perform supervised classification using these samples, save them and use them to classify another image,
5. convert images to GEO-TIFF format,
6. print the classified image.

The MultiSpec software can be downloaded free.        

Image-Tools (v2.6) 

This ArcView 3.x extension provides various image-related utilities, including specific features for use with single-band images (such as topographic map scans, DRG, DOQ, NOAA chart, and other pseudocolor/color-indexed products) as well as multi-band images (such as true color airphotos). The current Image-Tools extension provides these options: 

* Side by side single-band image viewing (edgematching - making overlap transparent). 
* Isolate particular single-band image colors. 
* Toggle single-band image colors to transparent. 
* Display single-band image colors in grayscale. 
* Restore default image colors. 
* Display transparent single-band image colors as white. 
* Save a colormap file for the active single-band image (including transparent colors). 
* Load a colormap file for single-band images (including transparent colors). 
* Make all images visible (or all single-band images or all multi-band images). 
* Activate (highlight) all images (or all single-band images or all multi-band images). 
* Build an image catalog from images in the view. 
* Build an image catalog from images stored on disk. 
* Export views to georeferenced JPEG images (with quality and DPI settings). 
* Convert active single-band images to grids (transfers image colors to grid theme). 

* Note: Spatial Analyst is NOT REQUIRED to use the core features of the extension. Once downloaded and unzipped, please read the file "imgtools.txt" for further information.