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Preferences > Map Settings
Settings for the map projection and data interpretation
Map Projection
You can change the map projection method between Mercator, and some others. Be aware that projections maybe only valid for a certain area of the world.
The default projection for JOSM is Mercator. This projection has certain advantages, one of them is that geometric figures (e.g. circles and rectangles) aren't deformed when displayed.
When you use rasterized background imagery then you need to set a projection supported by the service providing this imagery. JOSM is not able to change raster images. When image projection and current settings do not match, you get warned.
You can also change the system of measurement here (Metric, Chinese, Imperial, Nautical Mile).
Map Paint Styles tab
In this section sources for displaying the data can be changed. Beside the internal styles also externals styles are presented and can be activated.
See Styles and Map Styles Toggle Dialog.
Tagging Presets tab
If you want to learn how presets can also be added to the toolbar see - Toolbar Customization
If you want to use presets or need complete reference of presets see Presets
If you want to extend presets with your own see - TaggingPresets
Presets allow you to select predefined tags for objects. From this area of the preferences menu you can choose which presets to use.
The preset list will be downloaded automatically, then you have two options:
Activate preset(s) from available presets
Use the blue, right arrow in the middle
Add a preset from the file
Include one from a URL or local file (or network-located file or file in a Dropbox alternative) by clicking on the plus button on the right.
Adding presets requires a restart of JOSM. Then the tagging presets can be selected as usual.
File Backup
If you save geo data to a local file and the file already exists JOSM writes the data to a temporary file (with the suffix ~
). It then copies the temporary file to the target file.
In the File Backup settings you can specify whether JOSM should delete the temporary file or whether it should leave it as "backup" in the file system.
- Go to the tab File backup in the Map Preferences
- Select or deselect the checkbox Keep backup files
Back to Preferences
Back to Main Help
Attachments (3)
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MapPaintStylesPreferences.png
(105.6 KB
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screenshot
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josm_prefs_file_backup.png
(62.9 KB
) - added by 4 years ago.
file backup screenshot
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PreferencesMapProjection.png
(126.1 KB
) - added by 3 years ago.
new screenshot
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