Module:Location map/data/Boston Metro/doc: Difference between revisions

Usage

Location map of Greater Boston area

name	Greater Boston area
border coordinates
	42.487
	-71.383	←↕→	-70.857
	42.209
map center	42.348°N 71.12°W / 42.348; -71.12
image	Location map Boston Metropolitan Area 2.svg

Map of the Greater Boston area

Module:Location map/data/Boston Metro is a location map definition used to overlay markers and labels on an equirectangular projection map of Greater Boston area. 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 "Boston Metro":

• {{Location map|Boston Metro |...}}
• {{Location map many|Boston Metro |...}}
• {{Location map+|Boston Metro |...}}
• {{Location map~|Boston Metro |...}}

Map definition

• name = Greater Boston area

  Name used in the default map caption

• image = Location map Boston Metropolitan Area 2.svg

  The default map image, without "Image:" or "File:"

• top = 42.487

  Latitude at top edge of map, in decimal degrees

• bottom = 42.209

  Latitude at bottom edge of map, in decimal degrees

• left = -71.383

  Longitude at left edge of map, in decimal degrees

• right = -70.857

  Longitude at right edge of map, in decimal degrees

Precision

Longitude: from West to East this map definition covers 0.526 degrees.

• At an image width of 200 pixels, that is 0.0026 degrees per pixel.
• At an image width of 1000 pixels, that is 0.0005 degrees per pixel.

Latitude: from North to South this map definition covers 0.278 degrees.

• At an image height of 200 pixels, that is 0.0014 degrees per pixel.
• At an image height of 1000 pixels, that is 0.0003 degrees per pixel.

Examples using location map templates

Location map, using default map (image)

{{#invoke:Location map/data/Boston Metro

See also

Location map templates

• Template:Location map, to display one mark and label using latitude and longitude
• Template:Location map many, to display up to nine marks and labels
• Template:Location map+, to display an unlimited number of marks and labels

Creating new map definitions

• Template:Location map/Creating a new map definition