Plantilya:Geobox locator Illinois/doc

Template:Geobox locator Illinois is a map definition which can be used to overlay a locator dot on an equirectangular projection map of the U.S. state of Illinois. The markers are placed by latitude and longitude coordinates on a map image which matches the borders defined by this template.

Usage

This template is used by Template:Geobox map and Template:Geobox2 map, supportive templates for infoboxes in the Category:Geobox series.

The {{Geobox}} template uses this map definition when it includes:

map_locator = Illinois

For the locator dot to be correctly placed, {{Geobox}} must also include:

map = Illinois Locator Map.PNG (or one of the other images shown below)

Calibrated map

The map definition is calibrated to the first image shown below. It will only work with other map images which share the same border coordinates. Plantilya:Stack Plantilya:Stack

Map definition

Map definition

Map precision

Latitude at top edge, in decimal degrees: top = 42.60 Latitude at bottom edge, in decimal degrees:  bottom = 36.85 Longitude at left edge, in decimal degrees: left = -92.067 Longitude at right edge, in decimal degrees: right = -86.852 Height/width ratio of the calibrated image: ratio = 1.40625

Longitude: from West to East this map definition covers 5.215 degrees. At the default image width of 256 pixels, that is 0.0204 degrees per pixel. At an image width of 1000 pixels, that is 0.0052 degrees per pixel. Latitude: from North to South this map definition covers 5.75 degrees. At the default image height of 360 pixels (256 × height/width ratio), that is 0.016 degrees per pixel. At an image height of 1406 pixels (1000 × height/width ratio), that is 0.0041 degrees per pixel.

Example

Springfield
Tiganos	39°46′59″N 089°39′00″W

{{Geobox
| name = Springfield
| lat_d =  39 | lat_m = 46 | lat_s = 59 | lat_NS = N 
| long_d= 089 | long_m= 39 | long_s= 00 | long_EW= W
| map_locator = Illinois
| map = Illinois Locator Map.PNG
}}

Calibration tests

Warren
Tiganos	42.50°N 89.99°W / 42.50; -89.99

Cairo
Tiganos	37.01°N 89.18°W / 37.01; -89.18

Meyer
Tiganos	40.15°N 91.50°W / 40.15; -91.50

Calumet City
Tiganos	41.61°N 87.55°W / 41.61; -87.55

See also

• Template:Geobox
• Template:Geobox protected area
• Template:Location map USA Illinois, a map definition for Template:Location map (used by {{Infobox settlement}}, {{Infobox mountain}}, etc.)
• Template:Location map USA Illinois 2, a Template:Location map definition for a different set of map images