Kml File Format

Kml is short for keyhole Markup Language kml. It is a file based on XML syntax and file format, it is used to describe and save geographical information such as points, lines, images, and broken lines and display them in the Google Earth client. (previous versions of kml can be read by Google Earth and saved as kml 2.0) kml 2.0 provides the following functions:

1 \ specify the icon and Annotation of a location to distinguish each location
2 \ specify a clear perspective for each view to create different close-up shots
3 \ use the image annotation specified to the screen or geographical location
4 \ define display styles for specified types of labels
5 \ specify a description based on simple HTML syntax for the annotation, and support Hyperlink and Image Display
6 \ use the directory (folders) for Tree Classification Management of the annotation (to facilitate understanding and conform to habits, 7 \ translate "folder" into "directory ", it actually represents a group of geographic tags. Please forgive me)
8 \ Time Stamp-based tagging can be used for dynamic playback
9 \ dynamically load kml files from local or remote network addresses

When the view of the Google Earth client changes, the view information is automatically sent to the specified source server and the related annotation information is obtained from the server.
The process of kml being displayed by Google Earth Viewer is similar to that of HTML web pages processed by browsers. Like HTML, kml also uses a tag-based (name and attribute) it can be said that Google Earth Viewer is a kml file browser.

Directory
Kml 2.0 what's new
Compile your own Google Earth kml File
Kml Basics
Common labels
Placemarks)
Geometry)
Directory (folders)
Documents)
Image Overlays)
Geographic Image tagging (ground overlays)
Screen Overlays)
Time
Style
Schemas
Network Connection

Google Earth kml 2.0 reference
Kml syntax rules
Document Structure
Tag type
String
Kml label list
<Address>
<Altitudemode>
<Begin>
<Color>
<Coordinates>
<Description>
<Document>
<Draworder>
<East>
<End>
<Extrude>
<Fill>
<Folder>
<Geomcolor>
<Geometrycollection>
<Geomscale>
<Groundoverlay>
<H>
<Heading>
<Href>
<Icon>
<Iconstyle>
<Innerboundaryis>
<Labelcolor>
<Latitude>
<Latlonbox>
<Linearring>
<Linestring>
<Longpolling>
<Lookat>
<Name>
<Networklink>
<North>
<Objarrayfield>
<Objfield>
<Open>
<Outerboundaryis>
<Outline>
<Overlayxy>
<Pair>
<Parent>
<Placemark>
<Point>
<Polygon>
<Polystyle>
<Range>
<Refreshinterval>
<Refreshvisibility>
<Rotation>
<Schema>
<Scale>
<Screenoverlay>
<Screenxy>
<Simplearrayfield>
<Simplefield>
<Size>
<South>
<Snippet>
<Style>
<Stylemap>
<Styleurl>
<Tessellate>
<Tilt>
<Timeperiod>
<Timeinstant>
<Timeposition>
<Type>
<Href>
<URL>
<Viewrefreshmode>
<Viewrefreshtime>
<Visibility>
<W>
<West>
<X>
<Y>