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Google Earth Liquid Galaxy
I came across this while researching this project. It is just too awesome to pass up. And as it turns out it is not that hard to get working.
Here is a link to the quickest way to get just 2 computers up and running.
2 Computer Liquid Galaxy QUICK START
Following is a simple highlight of the linked page to get you up and running Google Earth on 2 Screens.
Identify your IP address on your computer - The IP address is a number that identifies your computer on the network.
For a MAC computer select the Apple in the top left of the screen and select About this Mac.
Then select MORE INFO followed by NETWORK which is about 1/2 way down the left panel of the window. The IPv4 address will be in the airport settings or under built in ethernet depending how you connect to the network. Copy this number down it will look something like: 22.214.171.124 (or some combination of 4 three digit numbers)
PC - Borrowed from ehow.com
WINDOWS XP - Go to the Start menu, go to Run, and type "CMD" in the dialog box (without the quotes.)
Now you should see a dark (DOS) window. Without the quotes, type "IPCONFIG" and press ENTER.
Now you should see some network information, along with the
ADDRESS of your computer listed
WINDOWS 7 - click "Start" > and then type CMD into the Search box and hit "Enter."
A black windows with a prompt will appear. It will look something like: C:\Users\username>. At the prompt, type "ipconfig" without the quotes, and hit "Enter."
The window will display a long list of information. Look for IP4 Address. You will see a numerical representation that looks something like this: 192.168.1.100. This is your internal IP address that is used to communicate with your local network.
Linux - SEE QUICK START GUIDE link above
Adding the code to Google Earth - the directions from the QUICK START are pretty complete, but here is a tip I found for a MAC
To find the DRIVERS.INI file on a MAC go the the Google Earth icon in the Applications Folder. Then Hold down the CTRL key and click the Google Earth Icon to get a menu (note if you have a 2 button mouse you can use the right mouse button to do the same thing.)
Select SHOW PACKAGE CONTENTS from the menu. Here you will find the DRIVERS.INI file that can be opened with the Text Editor program. NOTE: when saving the file after editing, be sure to use the .ini extension at the end of the file name. That is drivers.ini
To make one screen look off to the side of the other you change the ViewSync/yawOffset = 0 to another number (you can play with this as much as you want! You won't break anything!) - A good setting is 36.5 - this will make the computer match to the left of the MASTER screen.
Liquid Galaxy with more than 2 computers: (you may want to get your IT department to help you here)
Set up each computer as a master and slave configuration as described in the QUICK START guide.
Check with your IT department to find out what your network's Broadcast IP address is. If you are allowed, you can use an online tool to find it.
IP subnet Calculator
Use this link to find the broadcast IP address by entering your IP address and selecting your subnet mask (note you may need to play with the network class settings to make things match up. (again help from the IT department might be in order).
Once you know the Broadcast address for your network, you place it on the MASTER computer where the SLAVE IP ADDRESS goes. Now any computer set up to receive as a slave will sync with the Master.
To make one screen look off to the side of the other you change the ViewSync/yawOffset = 0 to another number (you can play with this as much as you want! You won't break anything!) - A good setting is 36.5 - this will make the computer match to the left of the MASTER screen. Set the RIGHT computer to -36.5 If you go bigger and use 4 and 5 computers just multiply the 36.5's by 2.
help on how to format text
Turn off "Getting Started"