Exports an EntityCollection as a KML document. Only Point, Billboard, Model, Path, Polygon, Polyline geometries
will be exported. Note that there is not a 1 to 1 mapping of Entity properties to KML Feature properties. For
example, entity properties that are time dynamic but cannot be dynamic in KML are exported with their values at
options.time or the beginning of the EntityCollection's time interval if not specified. For time-dynamic properties
that are supported in KML, we use the samples if it is a
SampledProperty otherwise we sample the value using
the options.sampleDuration. Point, Billboard, Model and Path geometries with time-dynamic positions will be exported
as gx:Track Features. Not all Materials are representable in KML, so for more advanced Materials just the primary
color is used. Canvas objects are exported as PNG images.Example:
Cesium.exportKml({
entities: entityCollection
})
.then(function(result) {
// The XML string is in result.kml
const externalFiles = result.externalFiles
for(const file in externalFiles) {
// file is the name of the file used in the KML document as the href
// externalFiles[file] is a blob with the contents of the file
}
});