KML/KMZ data

KML is a markup language based on the syntax standards of extensible markup language. It adopts the markup structure containing nested elements and attributes, and is used to represent geographical features. Files compiled with the KML language are KML files. The format is also based on XML syntaxes and format. It is used in Google Earth-related software (Google Earth, Google Map, etc.) to display geographic data (including points, lines, regions, polygons, polyhedrons, models, etc.). KML has been adopted by OGC and become one of many OGC standards. KML files have two file extensions: *.KML and *.KMZ (a compression set of one or more KML files which are compressed in zip format).

The layer types supported by KML include: images, geometric objects (points, lines, or regions), models, etc. SuperMap 3D supports displaying geographical information recorded in a KML file in a 3D scene as a 3D KML layer. That is, information recorded in a KML file is added on the globe in a 3D scene according to the coordinate information.

If KML file contains models, you need pacakage and compress the KML file, model data and textures with zip format, then change the extension to *.KML format before publishing a SuperMap 3D service.