Other options of selecting download area emerge after tapping Show advanced options:
Keep in mind that all maps in Locus Map consist of square tiles of 256px or 512px per side. All downloads work with whole tiles so it is not possible to download precisely round or curved maps - all are composed of square pieces of map.
Your download area has been defined, the next step is to choose which zooms to download. The zoom selection screen consists of following parts:
Versions 2.x of Android operation system can not handle files of 2 and more gigabytes. Keep it in mind when selecting your download area and number of zooms!
If you need a bigger map, download more smaller areas, Locus Map will merge them and use them as one file.
The Advanced options menu offers accurate calculation of the final amount of map tiles which is especially useful when downloading paid commercial maps. Then there is option to set the download type:
This method works only with maps that:
Overwrite - define how old tiles should be rewritten in case you download cached or supplementary maps. Set “0” if you want to re-load all map tiles.
In case you download a paid map Locus Map displays another dialog. It summarizes your LoCoin credit, final price of the downloaded map, number of tiles in the packet and the price of 100 tiles. If you have enough credit for the purchase there is no other obstruction to begin downloading.
A downloading progress info-box emerges after the download is launched. Besides useful information it offers to abort the downloading process (and lose all already downloaded data without possibility to restore the process) or pause it - then the already downloaded data is saved and the process can be renewed from the main download dialog box.
When the download is complete Locus Map automatically switches on the Maps manager offline tab where you can verify the map has been downloaded correctly. You will find it in the Locus/Maps directory.