Eye4Gps is a GPS Mapping Software package that allows you to perform a wide variaty of topographic tasks. It can be used to either manage your GPS, display maps, or navigate by using a latop or netbook. Some applications:

* Add comments, symbols or routes to your topographic maps;
* Manage the waypoints, tracks and routes on your GPS;
* Perform realtime navigation on vessels, cars, trucks and construction vehicles;
* Display recorded track-and-trace data;
* Plan your route using a topographic map;

Features

GPS Connection

The software can communicate with almost any GPS device to retrieve your current position, or to up and download tracks, routes and waypoint to and from your GPS devices. Supported protocols include NMEA0183 and Garmin PVT protocol.
Map Formats

The software supports a wide variaty of both vector and raster formats including:

* GeoTIFF;
* AutoCad DXF;
* ESRI Shapefiles;
* BSB nautical charts;
* JPG files, through user calibration or JGW (JPEG World File);
* TIF files, through user calibration or TFW (TIFF World File);
* GIF Files, through user calibration or GFW (GIF World File);
* PNG Files, through user calibration or PGW (PNG World File);
* BMP Files, through user calibration or BPW (BMP World File);

Import and Export formats

Overlay data, such as comments, waypoints, route and track data can be imported from or exported to different file formats. File formats supported include Topographix GPX GPS Exchange Files and OziExplorer PLT, WPT and RTE Files. You can export both manually added data as well as all data stored on your GPS device.
Map grids, datums and projections

To display a part of the globe (sphere) on a display(plane), a map projection is needed to prevent distortion of the map data. The software is shipped with a database containing over 1400 predefined map definitions. The following map projections are supported:

* Transverse Mercator;
* Oblique Mercator;
* Mercator;
* Oblique Stereographic;
* Polar Stereographic;
* Albers Equal Area Conic;
* Lambert Conformal Conic;
* Lambert Azimuthal Equal Area;
* Krovak;
* Eckert IV;
* Eckert VI;
* Mollweide;
* Cassini;
* Polyconic.

Tools

Some other tools and features the software offers:

* GPS waypoints, routes and tracks up- and download;
* Map calibration, to use your own downloaded or scanned GIF, PNG, BMP, JPG and TIF maps;
* Great circle calculations to perform distance and bearing calculations from point to point;
* Built in waypoint editor;
* Built in route editor;
* Built in track editor;
* Calculate track and route distances (both leg and accumulated distance);
* Skyview;
* Dataview to display all information retrieved from the GPS device;
* Track recorder to save all movement to a GPS track;
* Display your position on the map realtime;