Georeferencer

This application is for adding positional information to maps in the United Kingdom which lack it.

After specifying where a map is, it will then appear on the main maps site once I have verified the position is correct.

How to use

• Click on the map in the left pane to load into the application.
• You can search for a place name using the search box to get closer to the position.
• Click a point on the map image and a corresponding point on the map.
• Repeat this twice, and then the image will appear overlayed on the map.
• If you make a mistake, click "clear" and start again.
• For the best results use roads as the points.
• If the map is of an urban area, you can use the normal OSM layer by selecting OSM rather than OSM-TOPO in the layers menu in the top left. You can also modify the opacity of the layer here.
• Once you are happy with the position of the map, click "submit georeferencing".
• I will then verify the submission is correct and the map will be added to the main site.
• Incorrect maps on the main site can be "flagged" by enabling the flag mode by pressing 'f', clicking the flag and then the circle corresponding to the wrong map. These will then appear on the georeferencer to be placed in the correct location when the script is rerun (not immediately).

Report bugs and suggestions on github