Mike One of MapInfos strengths - though it can trip you up - is the ability to overlay different coordinate systems in one map window - but obviously you get maximum accuracy if they're all based on the same system.
Northern Ireland is normally rendered in Irish UTM but it depends on your data supplier - what you could do is save copies of your open map tables into the 'right' projection. This saves doing a conversion in Access using VBA or whatever. No algorithm required though you could write one from details on the OSI or OSNI websites. Theres been plenty about this on the list one way or another if you do some searches on Directions or the similar MapInfo_L view on the www.MapInfo search page. HTH Paul Crisp Syntegra Innovation Place Delta Bank Road Newcastle NE11 9DJ Tel 0191 461 4522 Fax 0191 460 1987 -----Original Message----- From: Collard, Mike MB SUKOP-UORM/232 [mailto:[EMAIL PROTECTED]] Sent: 25 November 2002 15:28 To: [EMAIL PROTECTED] Subject: MI-L Convert Irish Coordinates to GB Grid References I am trying, with varying degrees of success, to create a single map of the island of Ireland. However, The Republic of Ireland map is based on Irish Coordinates and Northern Ireland is based on GB Grid references and so I can create two separate maps but I want a single seamless map of the whole of the island of Ireland. I think I can change the Ireland coastal outline map to GB Grid references in a MIF file and the resultant MI tab will then adjoin the Northern Ireland map in the same format. But I also have two Access tables with locations - one has Irish Coordinates and the other GB Grid References. Is there a tool available that will convert the Irish Coordinates in the Access table to GB grid references or is there a way of displaying the Ireland and GB maps with differing coordinate types and their respective locations as a single seamless map? Hope this makes sense. Thanks Mike Collard ******************************************************************** This email may contain information which is privileged or confidential. If you are not the intended recipient of this email, please notify the sender immediately and delete it without reading, copying, storing, forwarding or disclosing its contents to any other person Thank you Check us out at http://www.syntegra.com ********************************************************************
