# Module:Location map/data/China/doc

This is the documentation page for Module:Location map/data/China

name China 50 + 116.80932603407057 * ((1.9996655301850468-(\$1* pi / 180)) * sin(0.5867115434267053 * (\$2 - 104) * pi / 180)) 50 + 1.256383 * 116.80932603407057 * 0.02641006622571962 - 1.256383 * 116.80932603407057 * (1.3713469994670882 - (1.9996655301850468 -(\$1 * pi / 180)) * cos(0.5867115434267053 * (\$2 - 104) * pi / 180)) `China edcp location map.svg` 400x400px `China edcp relief location map.jpg` 400x400px

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

## Map definition

• `name = China`
Name used in the default map caption
• `image = China edcp location map.svg`
The default map image, without "Image:" or "File:"
• `image1 = China edcp relief location map.jpg`
An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters
• `x = 50 + 116.80932603407057 * ((1.9996655301850468-(\$1* pi / 180)) * sin(0.5867115434267053 * (\$2 - 104) * pi / 180))`
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 = 50 + 1.256383 * 116.80932603407057 * 0.02641006622571962 - 1.256383 * 116.80932603407057 * (1.3713469994670882 - (1.9996655301850468 -(\$1 * pi / 180)) * cos(0.5867115434267053 * (\$2 - 104) * pi / 180))`
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

## Alternative map

The {{Location map}}, {{Location map many}}, and {{Location map+}} templates have parameters to specify an alternative map image. The map displayed as image1 can be used with the relief or AlternativeMap parameters. Examples may be found below or in the following:

## Examples using location map templates

### Location map, using default map (image)

```{{Location map | China
| width   = 250
| lat_deg = 37
| lon_deg = 100
| label   = Qinghai Lake
}}
```

### Location map many, using relief map (image1)

```{{Location map many | China
| relief   = yes
| width    = 250
| caption  = People's Republic of China
| lat1_deg = 39.91
| lon1_deg = 116.39
| label1   = Beijing
| lat2_deg = 31.2
| lon2_deg = 121.5
| label2   = Shanghai
}}
```

### Location map+, using AlternativeMap

```{{Location map+ | China
| AlternativeMap = China edcp relief location map.jpg
| width   = 250
| caption = People's Republic of China
| places  =
{{Location map~ | China
| lat_deg = 39.91
| lon_deg = 116.39
| label   = Beijing
}}
{{Location map~ | China
| lat_deg = 31.2
| lon_deg = 121.5
| label   = Shanghai
}}
}}
```