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Features of the Cache Manager
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"Google Earth" obtains all its maps from the internet. The advantage is that a hufge
stock of maps is available and steadily up-to-date. To view terrain and roads (maps,
aereal photos, satellite fotos) one needs an internet connection. At home it is
no problem.
But what happens when I want to use "Google Earth" out of the home and I've no mobile
internet?
May I use "Google Earth" even without internet?
YES: Without internet "Google Earth" cannot load new maps, but the former visited maps stay in the computer. "Google Earth" remembers images and maps once shown in the screen in its so called Cache memory. This cache is stored to the local disk and therefore also available without internet connection. Therefore it is also called offline memory.
As long as this cache is'nt full all recently "overflown" areas are still available.
And exactly thit is the problem! When the cache is full it overwrites
the oldest data by newer ones. Nobody knows when the cache is full and less which
data are automatically overwritten.
If I need a specific area after weeks for a presentation without internet these
data are lost. There's only a fuzzy background without details. "Google Earth" has
overwitten exactly this area cause someone has prepared his holiday trip on the
same computer.
All the worse if you wanted to use "Google Earth" with GPS out of home and the necessary
maps have disapeared.
Google Earth itself provides no oppotunity to backup its cache data or to transfer
it to another computer.
Impressum | ![]() |
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