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### Maps

Cumulus uses the same sets of maps as KFLog does. They are freely available for download at http://maproom.kflog.org. For maximum results, you need all the different kinds of map files you can get there. Only install the airfields and airspaces maps for the area you need, this will make Cumulus faster. The other maps are not concerned of that.

The maps can be installed in any of three places:

- On the PDA itself, in $HOME/Applications/cumulus/maps/. This is the preferred location. Cumulus will try this directory first.
- On the CF card, in a directory maps/.
- On the SD card, also in a directory maps/.

The airfield and the airspace files have to be put in extra subdirectories in maps with the names airfields and airspace respectively.

Maps, just like waypoints and tasks, will be shared with KFLog/Embedded.

If you experience memory problems running Cumulus, you can choose not to install certain map sets. You could for instance skip the terrain maps. This will disable the display of terrain features (the isolines), but it will also save memory and reduce map loading and drawing time. It is advisable at least to use the Ground maps, because you will end up with a blue background otherwise, which is not very helpfull in navigation.

The maps you install are not projected. This is done on loading. Because this is a computationally complex operation, the resulting maps are stored again with a .kfc extension. For many maps, these files are a bit smaller than the original files. The next time Cumulus needs to load the file, it first tries to load this compiled file to improve speed. In the advanced map settings you can modify the behaviour of Cumulus for map projection and map compilation.

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