Module:Location map/data/Kiribati/doc
 | This is a documentation subpage for Module:Location map/data/Kiribati. It may contain usage information, categories and other content that is not part of the original module page. |
| This is a documentation subpage for Module:Location map/data/Kiribati. It may contain usage information, categories and other content that is not part of the original module page. |
Template:Location map Kiribati is a location map definition used to overlay markers and labels on an equirectangular projection map of Kiribati. 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 "Kiribati":
{{Location map|Kiribati |...}}{{Location map many|Kiribati |...}}{{Location map+|Kiribati |...}}{{Location map~|Kiribati |...}}
Map definition
- name
- used in default map caption (Template:Location map/data/Kiribati)
- image
- the default map image, without "Image:" or "File:" ([[:File:Template:Location map/data/Kiribati|Template:Location map/data/Kiribati]])
- image1
- an alternative map image, usually a relief map ([[:File:Template:Location map/data/Kiribati|Template:Location map/data/Kiribati]])
- x
- an expression to calculate a location on the map via its longitude; evaluates as 0 along the left edge and 100 along the right edge
- y
- an expression to calculate a location on the map via its latitude; evaluates as 0 along the top edge and 100 along the bottom edge
Technical details
For a map using an equirectangular projection which does not cross +/-180 longitude, or +/-90 latitude, the following expressions can be used:
x = 100*(long - left)/(right - left)
y = 100*(lat - top)/(bottom - top)
where lat and long are the degrees latitude and longitude respectively. Here, top and bottom are the degrees latitude of the top and bottom edges of the map, left and right are the degrees latitude of the left and right edges of the map.
Things are a bit more complicated when the map crosses +/-180 longitude, and some sort of "modulo arithmetic" is required. Here, we add 360 if the longitude is less than 0, then use a mapping based on positive coordinates. The following table can be used to check if the expressions are working as desired:
| location | lat | long | (x,y) test | (x,y) exact |
|---|---|---|---|---|
| top/left | 6 | 169 | (Expression error: Unrecognized punctuation character "[".,Expression error: Unrecognized punctuation character "[".) | (0,0) |
| top/right | 6 | -149 | (Expression error: Unrecognized punctuation character "[".,Expression error: Unrecognized punctuation character "[".) | (100,0) |
| bottom/left | -13 | 169 | (Expression error: Unrecognized punctuation character "[".,Expression error: Unrecognized punctuation character "[".) | (0,100) |
| bottom/right | -13 | -149 | (Expression error: Unrecognized punctuation character "[".,Expression error: Unrecognized punctuation character "[".) | (100,100) |
| center | -3.5 | 190 | (Expression error: Unrecognized punctuation character "[".,Expression error: Unrecognized punctuation character "[".) | (50,50) |
Alternative map
The map defined as image1 (Template:Location map/data/Kiribati) can be displayed by using the AlternativeMap or relief parameters in {{Location map}}, {{Location map many}} and {{Location map+}}. Further instructions can be found at Template:Location map#Using Alternative Map and Template:Location map#Relief, or see the examples below.
Examples
Location map: Eastern hemisphere, Deg/Min/Sec coordinates
{{Location map | Kiribati
| width = 250 | float = right
| caption = Location of [[South Tarawa]] in Kiribati
| label = South Tarawa
| background = lightblue
| position = right
| lat_deg= 01 | lat_min=19 | lat_sec=32 | lat_dir=N
| lon_deg=172 | lon_min=59 | lon_sec=00 | lon_dir=E
}}
Location map: Eastern hemisphere, Decimal coordinates
{{Location map | Kiribati
| width = 250 | float = right
| caption = Location of [[South Tarawa]] in Kiribati
| label = South Tarawa
| background = lightblue
| position = right
| lat = 1.326
| long = 172.983
}}
Location map: Western hemisphere, Deg/Min/Sec coordinates, alternative map
{{Location map | Kiribati
| AlternativeMap = Kiribati relief location map.jpg
| width = 250 | float = right
| caption = Location of [[Kiritimati]] in Kiribati
| label = Kiritimati
| background = lightgreen
| position = bottom
| lat_deg= 01 | lat_min=52 | lat_sec= | lat_dir=N
| lon_deg=157 | lon_min=24 | lon_sec= | lon_dir=W
}}
Location map: Western hemisphere, Decimal coordinates, relief map
{{Location map | Kiribati
| relief = yes
| width = 250 | float = right
| caption = Location of [[Kiritimati]] in Kiribati
| label = Kiritimati
| background = lightgreen
| position = bottom
| lat = 1.867
| long = -157.4
}}
Location map many: Deg/Min/Sec coordinates, alternative map
{{Location map many | Kiribati
| AlternativeMap = Kiribati relief location map.jpg
| width = 250 | float = right
| caption = [[South Tarawa]] and [[Kiritimati]] in Kiribati
| label = South Tarawa | label_size = 90
| bg = lightblue | pos = right
| lat_deg= 01 | lat_min=19 | lat_sec=32 | lat_dir=N
| lon_deg=172 | lon_min=59 | lon_sec=00 | lon_dir=E
| label2 = Kiritimati | label2_size = 90
| bg2 = lightgreen | pos2 = bottom
| lat2_deg= 01 | lat2_min=52 | lat2_sec= | lat2_dir=N
| lon2_deg=157 | lon2_min=24 | lon2_sec= | lon2_dir=W
}}
Location map many: Decimal coordinates, relief map
{{Location map many | Kiribati
| relief = yes
| width = 250 | float = right
| caption = [[South Tarawa]] and [[Kiritimati]] in Kiribati
| label = South Tarawa | label_size = 90
| bg = lightblue | pos = right
| lat = 1.326
| long = 172.983
| label2 = Kiritimati | label2_size = 90
| bg2 = lightgreen | pos2 = bottom
| lat2 = 1.867
| long2 = -157.4
}}