LEARNING TO USE JOSM – a guide to learning JOSM, with miscellaneous topics. ○ RESOURCES – links to information about OSM and the JOSM Editor. How to download and install JOSM, the Java OpenStreetMap editor, change some of the settings, open the instructions are similar for other operating systems. More advanced users may want to migrate to the JOSM editor at some point for We also found this JOSM Basic Manual pdf on the web, it would be good for a.
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Welcome to the JOSM guide.
JOSM/Guide – OpenStreetMap Wiki
This guide is split across several tabs abovestarting with an introduction aimed at new users. Don’t like jar files?
Click this java web-start link instead.
,anual When JOSM starts up, the main editing space displays some text. This can include important announcements, but really we want to see some map data …. Click the download toolbar button to open the download dialog window.
You should download an area encompassing the editing you will be doing, manal avoid downloading too much map data the OpenStreetMap mamual will take a long time to respond, and Joam may slow down or run out of memory You probably want to zoom right in close to the maximum zoom level. Pick a handful of streets around the area you are interested in. Start small, because you can download more data as you need it. After downloading some data, it may be a good idea to do a validation run on the downloaded data.
It is common that this will trigger many warnings or even errors – and it is good to know which errors manuaal in the data before you start editing it.
If you can’t see anything you probably need to zoom out scroll backwards until things come back into view. While zooming in you need to point the mouse at the data you wish to zoom towards. Yellow hatching diagonal lines indicates areas which are not loaded into JOSM at mqnual moment. You should see a rectangular area with a plain black background. This is area you have downloaded.
Within this area and trailing off the edges of it you will see the OpenStreetMap data. Now that JOSM knows where it is, it’s quite easy to request a little bit more data to extend the downloaded area. Use the zooming and panning features described above to position the visible area. The rectangular area of the manuall which is currently in view, will be the default selected area next time you click the download toolbar button.
Try downloading a little bit more data in a second rectangular patch, of about the same size, alongside the area you already downloaded.
Your first steps with JOSM — the Java OpenStreetMap editor
To do this you will need to zoom in and out until the width of the first downloaded area is about the same as the visible screen width, and then pan off to one side to position the view on some new mxnual a patch with yellow hatchingthen click download.
This time you don’t need to do anything within the download dialog. Zoom out a little bit to see the result. Above we described using the download dialog ‘slippy map’ tab to choose an area to download when we first start JOSM. Another approach is to load in a GPX file before downloading data. If you want to do some editing without using GPS traces, skip this section.
Opening your GPX file is very straightforward. Now you can follow exactly the same procedure to download some map data alongside your GPS trace. As described in the previous section, position the visible area of the screen, and mankal the download button to get some data.
As always, you should take care to avoid downloading too much data. If your GPS trace is from a short walk, then you might typically download an area encompassing the whole thing, but if it is a longer manaul, travelling through a dense complex area of the map e.
Instead you should zoom in on just one end of your trace and grab a small rectangular area to start with. OpenStreetMap has a database which is separate from the main map data, especially for sharing raw GPS data. You can download any raw GPS data which others or you have contributed in the area you are looking at.
This is an additional tickbox option in the ‘Download’ dialog. Working with other people’s traces is not required and often may not be very useful, but it can give a useful indication of how accurate your mwnual trace is, and how existing data has been positioned. Where several traces have been taken along the same road, it may be useful to judge the position of an average line, to reduce the inaccuracies of GPS.
As well jos, viewing other people’s traces, you can upload your own. Again this is not required. For example, joms the “Imagery” menu and select ” Bing “. Better imagery might be available for your region. You can uosm other imagery sources sorted by country under “Imagery”, “Image Preferences”.
Now you’re ready to begin some basic editing.
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This page was last edited on 12 April josmm, at joam Start and download OSM data. Download a jar file: Double-click on the jar file Step 3: There is no step 3! This can include important announcements, but really we want to see some map data … Download data Click the download toolbar button to open the download dialog window. Slippy map tab of the download dialog Initially, the ‘ slippy map ‘ tab is selected. Slip around the map by dragging with the right mouse button, and zoom using the mouse scrollwheel or by double-clicking.
Zoom in on the bit of the map you’re interested in editing. Finally, use the left mouse button to drag a box around the area you want to download. When you click ‘Download’, the data should appear mamual the main editing area.
Zooming and Panning Within the main editing area, you can joem around and zoom in and out. Zoom using the mouse scrollwheel. Alternatively, you can hold down CTRL and use the arrow keys. Download more data Now that JOSM knows where it is, it’s quite easy to request a little bit more data to extend the downloaded area.
The rectangular area jom the screen which is currently in view, will be the default selected area next time you click the download toolbar button Try downloading a little bit more data in a second rectangular patch, of about the same size, alongside the area you already downloaded. Remember, always avoid downloading too much data in one go. Download other people’s traces OpenStreetMap joms a database which is separate from the manua map data, especially for sharing raw GPS data.
Switch on aerial imagery as background For example, click the “Imagery” menu and select ” Bing “.