Georeference
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Where the scene is on the earth.
Frame (fixed): a transverse Mercator plane centred on (lat, lon), scaled to groundHeightM; +x grid east, +y up, +z grid south. A map plane, not an east-north-up tangent plane: convert round-earth positions through latitude, longitude and height.
Fields
| Field | Type | Required | Default | Allowed values | Description |
|---|---|---|---|---|---|
lat | number | yes | Latitude of the scene origin, degrees (WGS84), north positive. | ||
lon | number | yes | Longitude of the scene origin, degrees (WGS84), east positive. | ||
heightM | number | no | 0 | The height that local y = 0 stands for, in the scene's vertical datum (DEM heights are usually above the geoid). Default 0. | |
groundHeightM | number | no | heightM | Height of the ground around the origin (m); lengths on the scene's plane are true at this height. Default heightM. | |
geoidSeparationM | number | no | 0 | Ellipsoid height minus geoid height at the origin (EGM2008 N, m); added when converting to ECEF (DIS). Default 0. |