Module:Location map/data/USA Virginia Alexandria region/doc

File:Alexandria, Virginia surrounding area.svg

Alexandria area

Module:Location map/data/USA Virginia Alexandria region is a location map definition used to overlay markers and labels on an equirectangular projection map of Alexandria 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 "USA Virginia Alexandria region":

• Template:Tlx
• Template:Tlx
• Template:Tlx
• Template:Tlx

Map definition

• name = Alexandria area

  Name used in the default map caption

• image = Alexandria, Virginia surrounding area.svg

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

• top = 38.94927

  Latitude at top edge of map, in decimal degrees

• bottom = 38.70554

  Latitude at bottom edge of map, in decimal degrees

• left = -77.22416

  Longitude at left edge of map, in decimal degrees

• right = -76.92444

  Longitude at right edge of map, in decimal degrees

Precision

Longitude: from West to East this map definition covers 0.2997 degrees.

• At an image width of 200 pixels, that is 0.0015 degrees per pixel.
• At an image width of 1000 pixels, that is 0.0003 degrees per pixel.

Latitude: from North to South this map definition covers 0.2437 degrees.

• At an image height of 200 pixels, that is 0.0012 degrees per pixel.
• At an image height of 1000 pixels, that is 0.0002 degrees per pixel.

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

Usage

Location maps of Virginia