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[[TranslatedPages]]
= Main menu > Imagery =
[[PageOutline(2-10,Table of contents)]]

This menu allows you to use various sources as a background layer in the [[MapView]] such as aerial imagery, cadastral plans or Maps rendered from OpenStreetMap data.

== Menu entries ==

The Imagery menu has the following entries:
||= Icon =||= Name =||= Shortcut =||= Description =||
|| [[Image(source:/trunk/images/preference.png,24)]] || [wiki:Help/Preferences/Imagery Imagery preferences] ||  || Opens the respective tab in the preferences. Imagery servers can be added and edited there. ||
|| [[Image(osm:source:/applications/editors/josm/plugins/imagery_offset_db/images/getoffset.png,24)]] || Get Imagery Offset... || {{{Ctrl+Alt+I}}} || Opens a window, where you can download offsets of Imageries (optional from the [[Image(osm:source:/applications/editors/josm/plugins/imagery_offset_db/images/iodb.png,24,middle)]] [osmwiki:Imagery_Offset_Database Imagery Offset Database Plugin]) ||
|| [[Image(osm:source:/applications/editors/josm/plugins/imagery_offset_db/images/storeoffset.png,24)]] || Store Imagery Offset... ||  || Saves an offset in the offset database (optional from the [[Image(osm:source:/applications/editors/josm/plugins/imagery_offset_db/images/iodb.png,24,middle)]] Imagery Offset Database Plugin) ||
|| [[Image(source:/trunk/images/mapmode/adjustimg.png,24)]] || [wiki:Help/Action/ImageryAdjust New offset] ||  || Opens a window to adjust the offset of an Imagery. ||
||||||||||
|||||||| Here will appear all Imageries, which are activated in the [wiki:Help/Preferences/Imagery Imagery preferences]. The following 7 entries are already activated from the beginning. Clicking on one of the entries will add the imagery to the [wiki:Help/Dialog/LayerList Layer list]. Adding an imagery is also illustrated at [wiki:Introduction#EnableAerialimagery]. ||
|| [[Image(bing.png,24)]] || Bing aerial imagery ||  ||  ||
|| [[Image(DigitalGlobe.png,24)]] || DigitalGlobe Premium Imagery ||  ||  ||
|| [[Image(DigitalGlobe.png,24)]] || DigitalGlobe Standard Imagery ||  ||  ||
|| [[Image(esri.png,24)]] || Esri World Imagery ||  ||  ||
|| [[Image(mapbox.png,24)]] || Mapbox Satellite ||  ||  ||
|| [[Image(black_white.png,24)]] || OpenStreetMap (Standard Black & White) ||  ||  ||
|| [[Image(carto.png,24)]] || OpenStreetMap Carto (Standard layer) ||  ||  ||
||||||||||
|||||||| Here will appear all non global imageries, which are available at the current center position and zoom of the [[MapView]] (only if they are not already listed above). This is determined by the bounds of the imagery, which you can see in the Imagery preferences. ||
||||||||||
|| [[Image(source:/trunk/images/OLmarker.png)]] || [#UsingaRectifiedImage Rectified Image...] ||  || For use with Metacarta's [http://labs.metacarta.com/rectifier/ Map Rectifier]. Clicking on this opens up a dialog box requesting an id. The id is obtained from either the page url or the WMS link (e.g. http://labs.metacarta.com/rectifier/rectify/73 -  the id would be 73). Note if you are using these images for editing then you need to ensure the image, and its method of rectification, are free of any copyright issues. ||
|| [[Image(osm:source:/applications/editors/josm/plugins/piclayer/images/layericon24.png)]] || New picture layer from file... ||  || Allows to add and rectify custom images e.g. a .jpeg file (optional from the [[Image(osm:source:/applications/editors/josm/plugins/piclayer/images/layericon24.png,middle)]] [osmwiki:JOSM/Plugins/PicLayer PicLayer Plugin]) ||
|| [[Image(osm:source:/applications/editors/josm/plugins/piclayer/images/layericonclp.png)]] || New picture layer from clipboard ||  || Allows to add and rectify custom images directly from the clipboard (optional from the [[Image(osm:source:/applications/editors/josm/plugins/piclayer/images/layericon24.png,middle)]] PicLayer Plugin) ||
|| [[Image(https://raw.githubusercontent.com/mapillary/josm-mapillary-plugin/master/images/icon24.png)]] || Mapillary || {{{Shift+,}}} || Adds the mappilary layer. (optional from the [[Image(https://raw.githubusercontent.com/mapillary/josm-mapillary-plugin/master/images/icon24.png,middle)]] [osmwiki:JOSM/Plugins/Mapillary Mapillary plugin]) ||
|| [[Image(https://raw.githubusercontent.com/mapillary/josm-mapillary-plugin/master/images/icon24.png)]] || Mapillary object layer || || Adds a layer with map objects detected by mappilary e.g. traffic signs. (optional from the [[Image(https://raw.githubusercontent.com/mapillary/josm-mapillary-plugin/master/images/icon24.png,middle)]] Mapillary plugin) ||

== WMS basic troubleshooting ==
Things to try in case of problem.

=== No image appears, even after waiting a bit (message No tiles at this zoom level) ===
* Adjust zoom level so that the scale in the top left says ~300m.

=== Error: Could not load images from tile server ===
* The Imagery server address can be outdated.
* The Imagery server address can temporarily be not available.

=== Images at bad resolution ===
* Check if other aerial imageries are available. Make sure OSM has the permission to trace from it!

=== Exception occurred - red tiles ===
* This can mean the Imagery server is temporarily not available. Landsat and OpenAerialMap seem to be prone to periods of non-availability. Delete the WMS layer and try again 10 minutes later.

=== Error: bad parameters - red tiles ===
* Check that configuration -> projection is set to EPSG:4326 or Mercator.

=== gray tiles ===
* if you have non-ACSII symbols in the path to your plugin folder in Windows (e.g. cyrillic letters in ''your name'' in C:\Documents and Settings\''your name''\Application Data\JOSM\plugins), a possible solution is to change ''your name'' to an equivalent short filename. To find this open a command window and do 
 dir /x "C:\Documents and Settings"
In its output the column to the left of ''your name'' should contain short version of ''your name'', let it be for example ''9335~1''. Add a line to the batch file starting JOSM:
 rem   Contents of start_JOSM.cmd
 set APPDATA=C:\Documents and Settings\''9335~1''\Application Data
 start javaw -jar josm.jar

== Caching ==
To reuse the tiles over JOSM sessions without having the reload them from the server, right click on the WMS layer and set a bookmark. During the next session, select the new WMS created by the bookmark in the WMS memu. Additionally, you may want to modify the following values in the preferences :
* cache.wmsplugin.expire -1 : this is a time in second until the tiles are invalidated. -1 means "never flush".
* cache.wmsplugin.maxsize 999999999 : maximal size of the cache (probably in MB)
Even though you have to download an area "manually", you can work offline using this technique.

== Using a "Rectified Image" ==

'''Do not use copyrighted material, unless you have the right/permission to do so (see the Licensing section below)! '''

Before you start with your own images, it might be a good idea to start with Landsat data so you'll learn how to work with these downloaded images.

To work with your own images in JOSM:

* upload your aerial image / scanned old map to either 
 * Map Warper at http://mapwarper.net/ or 
 * MetaCarta at http://labs.metacarta.com/rectifier/ 
 * '''Note:''' please read their privacy/copyright notes first
* rectify it on their site so it "fits with reality"
* XXX - wait for the image to be processed?
* remember the metacarta id (look at the URL in your browser)
* in JOSM, load some openstreetmap data of the expected image area (to be in the right "clipping range")
* click on Rectified Image and enter the id in the upcoming dialog

If the "clipping range" was wrong, you might see just nothing. In this case zoom out and retry the download.

== See also ==

* [[Help/RemoteControlCommands#imagery]] - {{{imagery}}} command

----
Back to [wiki:/Help/Menu Main menu][[BR]]
Back to [wiki:/Help/Dialog/LayerList Layer List Dialog][[BR]]
Back to [wiki:/Help/Menu/ImageryContextMenu Imagery Context Menu][[BR]]
Back to [wiki:/Help Main Help]

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black_white.png (861 bytes ) - added by Klumbumbus 8 years ago.
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mapbox.png (506 bytes ) - added by Klumbumbus 7 years ago.
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