Google Maps and KML Konstantinos Niktas COM SCI 219 Spring 2008 What is KML? KML is an XML file format “used to display geographic data in an Earth browser such as Google Earth, Google Maps, and Google Maps for mobile.”
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COM SCI 219
KMZ (compressed KML, including attached images)
Polylines and polygons
Styles for polylines and polygons, including color, fill, and opacity
Network links to import data dynamically
Ground overlays and screen overlays
Google Maps for Mobile supports
Placemarks with <name> elementsGoogle Maps supports a subset of KML…
Usually everything contained in Document tag
Can have multiple Folder tags to separate different kinds of data. For example, one folder containing KML to show locations of pictures and another folder containing KML to show your path through the day.Structure
Can have an inner and an outer boundary
The boundaries are themselves defined by ‘LinearRing’ elements.
altitudeMode allows the polygons’ lines’ altitudes to be ‘absolute’ to sea level, ‘relativeToGround’, or ‘clampToGround’.Polygons