- Google KML Reader/Writer
- Google KML Quick Facts
- Resource Traversal
- Reader Parameters
- Writer Parameters
- Feature Types
- Writer Pipelines
- Atom Metadata
- Style Management and Common Styles
- Document Element Omission
- Raw Text
- Update Mode
- Feature Representation
- KML Dataset Structure
- File Structure
- Identifying Elements
- Documents and Folders
- Tours
- Extended Data
- User Defined Schema
- Layers and Feature Type Fanout
- Feature Attributes
- Geometry
- 3D
- Fixed Schema
- Common Element Attributes
- Common Format Attributes
- NetworkLinkControl
- Document
- Folder
- Placemark
- ScreenOverlay
- GroundOverlay
- PhotoOverlay
- NetworkLink
- Style
- StyleMap
- Tour
- AnimatedUpdate
- FlyTo
- SoundCue
- TourControl
- Wait
You are here: Popular Formats > Google KML Reader/Writer > Feature Representation > Extended Data > Writer
If the feature does not have an associated user-defined feature type, i.e. it is using the fixed schema, then the kml_data and kml_schema_data structured list attributes can be used to write the feature's extended data.
Note: The KML writer does not support manually writing <Schema> elements. If <SchemaData> elements are manually created, the kml_schema_url attribute should be used to specify an external schema definition.
Note: If the feature has an update mode specified, the extended data will not be written.