Add example: Add a legend

[GoogleCodeExporter]

Create an example that adds a legend overlay.

Original issue reported on code.google.com by tylerick...@gmail.com on 2 Aug 2011 at 9:32

[GoogleCodeExporter]

Possible API to use: 
http://code.google.com/apis/chart/infographics/docs/dynamic_icons.html#outlined_
text

Original comment by tylerick...@gmail.com on 2 Aug 2011 at 9:59

[pwatt01]

Here is an example that worked for me, based on the example at http://www.google.com.au/earth/outreach/tutorials/screenoverlays.html

overlay = KML.ScreenOverlay(
                    KML.name('Legend'),
                    KML.Icon(KML.href('your.url/here'')),
                    KML.overlayXY(x="0", y="0", xunits="fraction", yunits="fraction"),
                    KML.screenXY(x="25", y="95", xunits="pixels", yunits="pixels"),
                    KML.rotationXY(x="0.5", y="0.5", xunits="fraction", yunits="fraction"),
                    KML.size(x="0", y="0", xunits="pixels", yunits="pixels")                    
                    )