Co-ordinates used in TrigTools

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Jump to: National Grid Reference | Irish Grid Refence |
| Easting and Northings | Postcode | Placename | Flush Bracket Number |

OSGB - National Grid Reference - NGR (eg TQ435646) _BackToTop

Sometimes called Landranger Grid or LR Grid, based on the OSGB36 TRF, Airy 1830 ellipsoid datum and a Transverse Mercator map projection.

• TrigPoint Search - list GB trigpoints around the GridRef
• Interactive Map - produce a map centered on the location
• Location Search - to find trigs, benchmarks and passive stations around the location
• OSGB Gazetteer - find a list of places and designations around a Grid Ref
• Feature Finder - to find webpages containing refernces to a Grid Refernce
• Co-ordinate Converter - to convert to other formats and provide links to maps and location searchs, eg use to convert OSGB36 to WGS84

Irish Grid Refence (eg T454355) _BackToTop

• Irish Trig Points - produce a list of Trigpoints in Ireland
• Coordinate Converter - to convert to other formats and provide links to maps and location searchs, eg to convert to WGS 84
• Feature Finder - to find webpages containing refernces to a Irish Grid Refernce

Easting and Northings (eg 234356, 545345) _BackToTop

• Interactive Map - produce a map centered on the location
• Location Search - to find trigpoints, bench-marks and passive stations centered around the location
• Co-ordinate Converter - to convert to other formats and provide links to maps and location searchs . eg will convert to National Grid Reference (NGR)
• Feature Finder - to find webpages containing refernces to the exact location

UK Postcode (eg RH17 2TT) _BackToTop

• Location Search - to find trigs, benchmarks and passive stations centered around the Postcode
• Postcode Statistics - Enter a postcode to find out some interesting statistics about the postcode
• OSGB Gazetteer - find a list of places and designations around the Postcode
• Co-ordinate Converter - to convert to other formats and provide links to maps and location searchs, eg will convert Postcode to NGR or Postcode Lat/Long

Placename - Text Search (eg Stoke) _BackToTop

• Names of Trigpoints - find Trigpoints by Name
• Location Search - to find features centered around the Place
• Grid Ref Gazetteer - find a list of places and designations around the Placename
• Lat/Long Gazetteer - find a list of places and designations around the Town
• Name Finder - find features by Name (Trigs/Flush Brackets/Milestones/Follies etc from the Location Search)

Flush Bracket Number (eg S5543) - [FB or NPFB] _BackToTop

• Flush Bracket Search - search all the sources of the Location Search for FB number
• TrigPoint Search - list GB trigpoints by FB number
• See also Flush Bracker Browser - search all known FBs from the Location Search

• The following are all handled in the Co-ordinate Converter at nearby.org.uk, as well as all the coordinates above, it can handle converting from virtually all of these to all of the others! (more)

Lat/Long (WGS84/OSGB36) - (eg N 52° 55.244 W 003° 58.438)

UK Phone Dialing Code (eg 01248)

OSGB Map Tile Reference (eg SP08SW86)

NAC or Universal Address™ (eg GQH00 RSZZZ)

NAC, Natural Area Coding, Universal Map Grid and Universal Address are trade marks of NAC Geographic Products Inc (Used under Licence)

IARU Locator (eg IO34TN)

UTM - Universal Transverse Mercator (eg 30U,302802,5869773)

Approx - Single Number Representation of a Lat/Long (eg Approx 928542141)_BackToTop

More on these conversions

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This page created by Barry Hunter (c)2004-2005 part of Trig Tools
If interested the background is Moel Oernant
Uses many Sources of Data, how do you data-mine without data?