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Federal Office of Topography swisstopo

Calculation services

REFRAME

REFRAME

Planimetric and/or altimetric transformation for national or official measurement works with the highest precision requirements.
Groups the following software: GEOREF + FINELTRA + CHGeo + HTRANS

KML generation

KML generation

Conversion of points files (LTOP format or text file, e.g. CSV, in the LV03 or LV95 reference frame) or GPS raw data files (NMEA) to Google KML format (WGS84) for viewing in Google Maps or Earth, or import in an application like Swiss Map.

NAVREF

NAVREF

Conversion of national map coordinates (Swiss Grid) to geographical coordinates (reference system WGS84) at a one-metre accuracy.

Magnetic declination

Magnetic declination
Computation of magnetic declination (difference between magnetic and true north) and compass variation (difference between magnetic and grid north).

Comments about this page: Geodesy
Last updated: 20.05.2010
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