Template talk:GBvosi
From Wikipedia, the free encyclopedia
Creates a link to the excellent maps at old-maps.co.uk.
The template name means:
| GB | Great Britain - not UK - there is a separate OS for Northern Ireland | |
| v | Victorian | |
| os | Ordnance Survey | |
| i | interactive - links to a map on which the user can pan, zoom, etc. |
Contents |
[edit] Parameters
- e, n - Eastings and Northings for the centre of the map - in metres. Leading zeroes optional. All digits are significant - a one metre change generates a different map.
- cty - County Code - see below
- txt - link text - may be left null or blank
[edit] How to create
- Cruise round old-maps.co.uk to find the map you want. Some places are listed under more than one county - with different maps
- When you have found the map you want, the main page map (not the enlarged view) shows the required parameters above the map.
If your browser's status line is on, it will also show the co-ordinates as you move the mouse over the map.
The date can be included in the link or article text - but see note below regarding the reliability of the dates.
[edit] County Code
If the County Code is left blank, the link will either go straight to a map or to a county disambiguation page. In the latter case, you can force the link to go straight to a map by including the County Code from the list below.
Examples:
- {{GBvosi|e=529255|n=181705|cty=|txt=}} - county unspecified - gives disambiguation page
- {{GBvosi|e=529255|n=181705|cty=10mid231|txt=}} - same location as above - Middlesex forced
- {{GBvosi|e=455582|n=393655|cty=|txt=Stainton on a map of 1854}}Stainton on a map of 1854 - unambiguous county
- {{GBvosi|e=455582|n=393655|cty=10bucks031|txt=}} - wrong County Code used - gives a blank map!
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[edit] Dates
It looks, and is, more professional to quote a date rather than saying something like this Victorian OS map. However dates should be marked as only approximate for several reasons:
On the website, old-maps have created an audit trail back to the dates of the individual paper sheets they have used (each county needed a few dozen sheets). As you pan across the map display, you may see the date change, usually from one year to a range then back to one year. Where a range is shown, this means that the map on display is derived from two or more of the underlying sheets - the "stitch lines" between them are usually obvious at the largest scale. By judicious panning, keeping the point of interest in view, it is possible to get a single date shown which is the one to quote.
Even then the date is only the publication date as printed on the map, not the date of the survey. Before 1866, railways were sometimes added without changing the publication date. Conversely, the map may have been updated with important changes, such as railways, but other new developments are not shown.
See the old-maps help page for more details.
