CZML Cartographic Degrees: Defining Positions in 3D Geospatial Data

CZML (Cesium Markup Language) is a language used for describing time-dynamic 3D geospatial data for Cesium, a 3D mapping and visualization platform. In CZML, 'cartographicDegrees' is a type of value that represents an angle in degrees within a cartographic coordinate system.

Cartographic coordinates are used to define positions on the Earth's surface using latitude, longitude, and optional height above the ellipsoid. In CZML, 'cartographicDegrees' are expressed as an array of numbers in the format [longitude, latitude, height]. The longitude and latitude values are in degrees, and the height value is in meters.

For example, a 'cartographicDegrees' value for a position in New York City could be [74.0060, 40.7128, 0], where 74.0060 is the longitude, 40.7128 is the latitude, and 0 is the height above the ellipsoid (in this case, ground level).

'CartographicDegrees' can be used to specify the position of objects in CZML, such as a camera, a point, a billboard, or a model. It allows for precise placement and movement of objects on the Earth's surface within a Cesium visualization.