Template:Coord-doc-dim
[http://www.nga.gov/content/ngaweb/research/casva/research-projects.html A Project of the National Gallery of Art, Center for Advanced Study in the Visual Arts ]
The dim: parameter defines the diameter of a viewing circle centered on the coordinate. While the default unit of measurement is metres, the km suffix may be appended to indicate kilometres.
GeoHack uses dim: to select a map scale such that the viewing circle appears roughly 10 centimetres ({{#invoke:Math|precision_format| 3.9370078740157 | 0}} in) in diameter on a 72 dpi computer monitor. If no dim:, type:, or scale: parameters are provided, GeoHack uses its default viewing circle of 30 kilometres (Template:Hid{{#invoke:Math|precision_format| 18.64113576712 | 1-1 }} mi).
| Subject | View diameter | Markup | Result |
|---|---|---|---|
| Western Hemisphere | 10,000 kilometres (Template:Hid{{#invoke:Math|precision_format| 6,213.7119223733 | 1-3 }} mi) | {{coord|0|N|90|W|dim:10000km}} | coord}} Fatal error: The format of the coordinate could not be determined. Parsing failed. |
| Ohio | 400 kilometres (Template:Hid{{#invoke:Math|precision_format| 248.54847689493 | 1-2 }} mi) | {{coord|40.5|-82.5|dim:400km}} | coord}} Fatal error: The format of the coordinate could not be determined. Parsing failed. |
| Dresden | 20,000 metres (Template:Hid{{#invoke:Math|precision_format| 12.427423844747 | 1-1 }} mi) | {{coord|51.033|13.73|dim:20000}} | coord}} Fatal error: The format of the coordinate could not be determined. Parsing failed. |
| Statue of Liberty | 100 metres (Template:Hid{{#invoke:Math|precision_format| 328.08398950131 | 1-2 }} ft) | {{coord|40.6892|-74.0445|dim:100}} | coord}} Fatal error: The format of the coordinate could not be determined. Parsing failed. |
