Module:Location map/data/UK Greater London postal/doc


Location map of Greater London
name Greater London
border
coordinates
51.75
-0.6 ←↕→ 0.4
51.25
map center 51°30′00″N 0°06′00″W / 51.5°N 0.10000000000002°W / 51.5; -0.10000000000002
image London Postal District.png


Module:Location map/data/UK Greater London postal is a location map definition used to overlay markers and labels on an equirectangular projection map of Greater London. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.

Usage

These definitions are used by the following templates when invoked with parameter "UK Greater London postal":

Map definition

  • name = Greater London
    Name used in the default map caption
  • bottom = 51.25
    Latitude at bottom edge of map, in decimal degrees
  • left = -0.6
    Longitude at left edge of map, in decimal degrees
  • right = 0.4
    Longitude at right edge of map, in decimal degrees

Precision

Longitude: from West to East this map definition covers 1 degrees.

  • At an image width of 200 pixels, that is 0.005 degrees per pixel.
  • At an image width of 1000 pixels, that is 0.001 degrees per pixel.

Latitude: from North to South this map definition covers 0.5 degrees.

  • At an image height of 200 pixels, that is 0.0025 degrees per pixel.
  • At an image height of 1000 pixels, that is 0.0005 degrees per pixel.


See also

Location map templates

Creating new map definitions