Friday, October 21, 2005
Hacking Google Earth
Reposted from SearchEngineWatch.com
By Chris Sherman, Associate Editor
September 6, 2005
Google Earth's vivid satellite imagery has a serious goshwow factor, but the program also offers a lot of useful tools and data sharing features that make it a terrific research and learning resource.
When Google launched Google Earth last month, it followed its now customary pattern of taking a fee-based service and making it available for free. If you haven't yet tried Google Earth, download it and give it a try. The program currently runs on relatively new Windows based computers; this download page has full specification details.
Google engineers often say that the search engine of the future will resemble the computer on Star Trek. Well, Google Earth is certainly close: The interface for the program resembles a control console for a spaceship. It's also very intuitive and easy to use.
But once you've had some fun "flying around" the earth, what next?
For starters, try creating some "placemarks" for your favorite locations. Placemarks are just like bookmarks, but they're associated with a specific location on the planet.
To set a placemark, either search for a location or use the zoom and pan controls to zero-in on a location. Then click the push-pin icon in the lower-right of the console. This brings up a menu; click the placemark selection (alternately, you can also set a placemark by clicking Ctrl-N). A pushpin icon appears on the image you're viewing—drag it to the exact location you'd like it to be placed.
Notice the dialog box that has appeared on the left side of the screen. This lets you name your placemark and add a description if you like. A checkbox enables advanced features that give you even more control over a placemark, and you can also organize your placemarks into folders, in much the same way that you organize your favorites.
Now the real fun begins. Once you've created placemarks, you can "tour" them by ticking the check box next to each location you want to visit, then clicking the little "play" icon in the lower right corner of the My Places box. Google Earth will then fly you around from location to location.
You can also save your placemarks and share them with others, either by email, or by uploading them to the Google Earth community forum. I'll talk more about that in a moment.
Finding and saving placemarks is cool, but why stop there? Google Earth also lets you save search results related to a particular location. The easiest way is to simply drag the search result folder icon to the relevant folder in your My Places.
Another fun feature lets you fly along a route that's created when you request driving directions. Simply enter your starting and ending point into the "directions" search boxes, and once the route is mapped, click the play icon. You can control both the speed of the tour and how long you pause at each stop via the Tools > Options > Control menu.
I've just scratched the surface of what you can do with Google Earth. Although the Google Earth Support Page offers some basic information, you'll find a much better guide to the program's features in the Getting Started guide.
Sharing Google Earth Data
As I mentioned, you can share saved Google Earth placemarks, searches, directions and other data. The easiest way is to simply email the special KMZ file that's created whenever you save data. But you can also save these files to a network server, either internally or on the web, and anyone with access to that server can download and use your files.