An email, and comment on a previous post, led me to OKMap, a GPS mapping program that has lots of promise, but currently has a few issues. The feature set is certainly interesting:
- Open vector data in many different formats (OziExplorer, GPX, shapefile, DCW), and export/upload data
- Import raster images, and calibrate them; import raster images with worldfiles, in ECW format, or in OziExplorer format, and have them calibrated automatically. Supports many different projections and datums.
- Catalog your saved maps for easy retrieval.
- Extensive editing tools for creating and modifying waypoints, tracks, and routes.
- Real-time GPS support (NMEA)
- Data exchanges with Google Earth
In short, some of the more useful features of the paid versions of OziExplorer and GPS TrackMaker. However, this is a program that is definitely still in beta form:
- A bit buggy still - crashes occasionally
- Functions of specific features unclear in many cases
- It’s possible that I may not have been doing things correctly above, but there’s no documentation included with the program; even the downloadable help file in Italian has many pages that aren’t complete yet
- Using ECW imagery requires installation of the ECW ActiveX SDK, something not mentioned on the website, but which you find out after you start up the installation program (it’s available at this link)
- Latest version also requires that you have the J# .Net redistributable package installed, available here
The author (Gian Paolo Saliola) is very responsive to comments, and quickly fixed several bugs and quirks I pointed out to him. With enough people trying out the program and reporting issues back to him, this could soon be a very strong GPS utility program.
Other posts in the GPS Tools series
- Simplifying GPS Tracks
- Recap Of Exporting/Importing GIS Data To/From A GPS Unit Series
- Freeware GPS Road Navigation Software
- GPS Satellite Display In Google Earth
- Solar GPS DataLogger
- Loading An AutoCAD DXF File Into A GPS Or Google Earth
- Open Source Web-Based GPS Fleet Tracking Software
- Determining Local GPS Satellite Geometry Effects On Position Accuracy
- Determining Terrain Effects On GPS Accuracy
- GPS File Format Converter
- “Turn Your Cellphone Into A GPS!”? Not Exactly, But Still Kinda Cool
- USAPhotoMaps: GPS Functions
- Java-Based GPS Route Format Converter
- RouteConverter Updated
- Create Location-Based Media (Games, Hikes, Tours, Etc.) With Mscape
- Protecting Your GPS Unit’s Screen
- Upload Google Maps Directions As A Route To A GPS
- Get-A-Route Upgraded Already
- Two Free Applications For Marine Navigation
- KML To GPX Converter For PC And Mac
- Creating GPS Routes And Tracks In Google Earth
- GPS “Dilution Of Precision” (DOP) Maps
- Real-Time GPS/WAAS Status Reports
- Cheap Bluetooth GPS Antenna And Data Logger
- Improving Position Measurement Accuracy In Consumer-Grade GPS Receivers - Part I
- Cheap Digital Camera With Built-In GPS
- Cheap GPS Antennas, Compasses, Oddball Gadgets And Junk
- Improving Position Measurement Accuracy In Consumer-Grade GPS Receivers - Part II
- RouteConverter Updated - Java GPS Route Editing And Conversion For Windows (Mac And Linux Too?)
- Sports Route Planning Software For The Macintosh
- OKMap - GPS Mapping Software For The Beta-Adventurous
- Create Bicycle/Travel Courses For Your Garmin Edge/Forerunner GPS With Bike Route Toaster
- Web App For Analyzing GPS Tracks


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