ಟೆಂಪ್ಲೇಟು:Location map SwedenCIAx/doc

Usage

The map definition, {{Location map SwedenCIAx}}, is intended for overlaying markers and labels on similar maps of Sweden. It is a map locator for the Sweden CIA-extended map, skewing northern longitudes.

Some of the related mapping procedures are:

• Template:Location map - puts symbols/labels on an image.
• Template:Location map many - puts up to 5 symbols/labels on an image.

This template uses the mapping procedure "Template:Location map" which must be invoked with parameter "SwedenCIAx" to process the options before it uses this template. Specify each of the individual parameters by using vertical bars: {{Location map | SwedenCIAx | ...}}.

Map for Sweden CIA-extended

Map parameters
y	(100*({{{2}}} - 69.45)/(54.78 - 69.45))	formula for y percentage
x	(100*( ({{{3}}} - (22.20 + 11.20)/2)*((1 - 0.675)*({{{2}}} - 69.45)/(54.78 - 69.45) + 0.675) + (22.20 + 11.20)/2 - 11.20)/(22.20 - 11.20))	formula for x percentage

Because the map is not equirectangular, the longitude coordinate will need to be adjusted/skewed to match northern-area mapping of rectangular position (if trying "Template:Location map"). Both the latitude and longitude can be skewed by using Template:Location map, which processes "lat_skew" to arc latitude coordinates near the

map edges.

WARNING: Having too much text (over 1.5kb) in Template:Location_map_SwedenCIAx can kill mapping templates that are using it. Tests with 14 interwiki language-links killed the mapping templates; move any interwiki links to the {{doc}} file.

See: {{Location map}} for description of skew/parameters, and for generic mapping parameters.

Examples

Kiruna

The example shows the correct placement of Kiruna when SwedenCIAx is used with {{Location map}}.

Note that the label for "Kiruna" has been skewed onto the mark, due to narrow longitudes far north (on non-equirectangular map). Longitude position is calculated from the map center, so center towns would be positioned more accurately (see example below for Stockholm). A "skew" factor has been implemented to scale longitude smaller near polar latitudes (relative to map height), and position longitudes from map center, rather than from left-side base longitude.

{{Location map | SwedenCIAx
| width = 250 | float = right
| caption = Example using Location map
| label = Kiruna | label_size = 90
| position = bottom | background = #CCCC11
| lat_deg=67 | lat_min=51 | lat_sec=17
| lon_deg=20 | lon_min=13 | lon_sec=22
}}

Stockholm

The example shows the correct placement of Stockholm when SwedenCIAx is used with {{Location map}}.

{{Location map| SwedenCIAx
| width = 250 | float = left
| caption = Example using Location map
| label = Stockholm  | label_size = 110
| position = bottom | background = #5599EE
| lat_deg=59 | lat_min=21
| lon_deg=18 | lon_min=4
}}

Gotland on wrong map

The example on the left shows the correct placement of Gotland on the default map image. The example on the right shows the incorrect placement when a map using different border coordinates is specified via the AlternativeMap parameter.

{{Location map | SwedenCIAx
| width = 200 | float = left
| label = Gotland | label_size = 110
| position = top | background = #FFFF99
| caption = "Gotland" put on wrong-scale map
| lat_deg=57 | lat_min=30
| lon_deg=18 | lon_min=33
}}
{{Location map | SwedenCIAx
| AlternativeMap = Sweden-eq.png
| width = 200 | float = right
| label = Gotland | label_size = 110
| position = top | background = #FFFF99
| caption = "Gotland" put on wrong-scale map
| lat_deg=57 | lat_min=30
| lon_deg=18 | lon_min=33
}}

Prior stretched map

The prior mapping template uses stretched maps of Sweden, which distort the northern distances while stretching longitude lines to become parallel to the top of the map:

Stretched/widened map: Template:Location map Sweden.

Such stretched, equirectangular maps are still accurate for southern locations in Sweden, up to around Stockholm; however, northern locations might be exaggerated, stretched over 20% further apart than reality.

See also

• Template:Location map DenmarkCIAx