Features

Features

GEOrgET provides editing and organising tools for nmea/kml/gpx files for productive use with GoogleEarth.

1. Converts nmea or gpx files to kml:

Nmea files with sentences such as these will be converted into kml files containing a Path and a folder of Points:

$GPGGA,080658.000,5222.9573,N,00948.8752,E,1,00,,-47.0,M,0.0,M,,0000*5D
$GPRMC,080658.000,A,5222.9573,N,00948.8752,E,000.00,0.0,241013,,,E*5E

Supersampled files can be reduced in size by setting a sample size. Stationary points are automatically recognised and removed. The Points will not be visible in GoogleEarth, but the folder is present and the data is necessary for the profile/speed plot in GE ("View Profile"). The Path is visible.

Gpx files can be imported. If elevation and time values are present, they will also be imported; otherwise elevation data will be retrieved from SRTM data, if available.

2. Produce congruent Points from an edited Path:

The Path can be edited in GoogleEarth by deleting, adding or moving individual points ("Properties"). The file can then be saved to its original name and processed by GEOrgET so that the Points accurately reflect the edited Path and the timepoints are adapted to the new Path.
This edited Path can be exported to the gpx format for use with GPS devices.

3. Add a timezone; change the starting time of a Path:

Regularly used timezones can be selected from the supplied complete timezone database and saved as favourites. The starting time and date of any file can be changed to any date and any time (5-minute intervals). This function is particularly useful when joining Paths, because in order to view the profile/speed plot in GoogleEarth the times for the sections must be in a forward sequence.

4. Reverse a Path and its Points while preserving time relations:

Paths can be reversed, and this will also reverse the Points while at the same time the relative times between Points remain as they were.

5. Join Paths:

Paths can be joined into a single Path containing all the Points of the joined Paths.

6. Add photo locations to kml files:

Use the times photos were taken to assign them to geographical points and include these points in a special folder in the kml file.

7. Make images such as colour-coded, contoured and shaded maps, and profile, slope, and speed plots:

Automatically generate these plots for any kml file:

• Coloured, contoured and shaded map with the track and special features plotted on it;
• Track profile and slope plots; and
• Speed v. Distance and Speed v. Time plots for the track.

Special features which can be plotted on the map include:

• Waypoints, rivers, lakes, islands, shorelines (kml file/GoogleEarth);
• Cities and towns from the PHS-DBC database.
8. Make GoogleEarth tours

Set tour parameters to create a smooth flight:

• Speed, height above ground, buffer time, angle from the perpendicular.

Further options include:

• Automatic or custom bearing changes; or
• Set the bearing to "Crawl" which will adapt the bearing incrementally over a whole section;
• View the track from the outside towards its geographical centre.
9. Customise settings

These settings can be set to custom values:

• Choice of primary and favourite timezones;
• Photo main directory, standard subdirectory, standard photo prefix, standard photo format;
• Database server, name, user, and password.

Requires PHP to run; images will only be produced if ImageMagick for PHP is also installed. SRTM files are necessary for colouring maps, and are useful for profile and slope plots.