This represents another operating mode with TransLT where you can download the point altitudes by using the Google Maps Elevation API services. The altitudes are obtained through interpolation from Earth's 3D model, data made available to users by Google API Console. The geographic coordinate system supported by Google Maps is the one defined on the ellipsoid "WGS84" ("ETRS89"), Prime Meridian "Greenwich".

In order to use this service, you need to register on Google API Console and get the API key.

Data on communication with the Google Maps APIs server

URL address of the Google Maps Elevation API services

Enter the URL address that communicates with the Google Maps Elevation API server. The text must contain the words LAT, LONG and KEY written in capital letters. Instead of these texts, the coordinates of point (φ, λ) and your API key are passed. By accessing this URL address, the altitude (h) of the point is determined by interpolation on the 3D model from Google Maps.

The address available on the release date of this program is: "https://maps.googleapis.com/maps/api/elevation/json?locations=LAT,LONG&key=KEY".

Your key registered on Google API Console

Enter the registration API key as a user of the Google Maps Elevation API. More information can be found on the Internet at: Getting Started - Google Maps Elevation API.

Creating an account on Google API Console

Using this link, you can access the web page where you can register as a user of the Google Maps Elevation API. More information about this service can be obtained from address https://console.developers.google.com.

Geographic coordinates on the ellipsoid "WGS84" ("ETRS89"), Prime Meridian "Greenwich"

In the table the coordinates can be entered manually, loaded from a file or copied from another table. The coordinates from the table can be saved to a file or can be exported to Microsoft Word or Microsoft Excel. The description of the buttons and of the contextual menu of tables can be found at The commands of the coordinate tables.

When manually inputting of the coordinates, the separating character for the angles in sexagesimal degrees can be any of the characters used for the identification of the degrees, minutes or seconds or, you can use the space key to automatically introduce it.

When loading the coordinates in the table, the altitudes (h) are ignored. Altitude values in this column are only obtained by downloading from the Google Maps Elevation API server.

Button Download altitudes

By pressing this button the coordinates (φ, λ) are sent to the Google Maps Elevation API server where it is obtained in response their altitudes. The altitudes are written in the table at the altitude column.

Button Save table to file

By pressing this button you can save the coordinates from table to a file.

Button Save altitudes in the previous table

The button is only available when this window is called from the main program. By pressing it the altitudes are written over the altitudes in the previous table, the one from which the call was made.