Hacking Google Maps and Google Earth (ExtremeTech)

338 Part IV — Google Earth Hacks

Because this is Google Earth, the overlay is of course attached to the map. If the view is

rotated or tilted, the overlay rotates and tilts with the map accordingly, as demonstrated in

Figure 17-11.

FIGURE17-11: Rotated map and overlay.

The KML generated in the preceding process shows how the image is overlaid. Unlike Google

Maps, where the TPhotoextension was used, Google Earth supports the operation directly

within the application using KML to define the structure:

<?xml version=”1.0” encoding=”UTF-8”?>

<kml xmlns=”http://earth.google.com/kml/2.0”>

<Document>

<name>New Office Layout.kmz</name>

<GroundOverlay>

<name>New Office Layout</name>

<color>77ffffff</color>

<Icon>

<href>images/ch11-overlay.png</href>

<viewBoundScale>0.75</viewBoundScale>

</Icon>

<LatLonBox>

<north>35.2838663590014</north>

<south>35.27641626890076</south>