[[TranslatedPages(outdated=Page content was split into several pages but there are still incorrect links leading to this page.)]] [[PageOutline(2-4,Table of content)]] = Preferences > Map Projection = [[JOSMImage(preferences/map,link=)]] Settings for the map projection and data interpretation **Note**: On each startup JOSM sets the projection method, the coordinate display format and the system of measurement back to user default settings. == Projection method == For the current session the projection method can be changed here. \\ A list of common projections is offered. This list offers common projections (categories) by their name. The second to last entry, ''By Code (ESPG)'', offers a complete list of all known projection codes with a filter option on top. With the last entry, customs projections can be set. [[Image(PreferencesMapProjection.png,link=,right,margin-left=15,50%)]] Projection code:: shows the EPSG code for the projection. Bounds:: shows the region where the projection is valid. \\ Some projections are valid only for small parts of the world. \\ Common default projection for JOSM is ''Mercator (EPSG:3857)''. \\ It has certain advantages, one of them is that geometric figures (e.g. circles and rectangles) aren't deformed when displayed. \\ JOSM re-projects raster images from the projection of the source automatically to the current projection method. Set as default:: With this button the user default setting for the projection method is set. It is visible in [wikitr:/Help/ExpertMode Expert mode] only, #14877. == Display coordinates as == Set the user default coordinate format (Decimal, Degrees, Nautical or Projected Coordinates). == System of measurement == Set the user default system of measurement (Metric, Chinese, Imperial or Nautical Mile). In the [wikitr:/Help/StatusBar status bar] the coordinate format and the system of measurement can be changed in the context menu for the current session, individually. So the numbers in ''Bounds'' may not fit to ''Display coordinates as''. {{{#!comment == See also == }}} ---- Back to [wikitr:/Help/Action/Preferences Preferences dialog] \\ Back to [wikitr:/Help/Menu/Edit Edit Menu] \\ Back to [wikitr:/Help/Menu Main Menu] \\ Back to [wikitr:/Help Main Help]