It does seem that what is needed here is not the definitive map but rather the survey data the two surveyors gathered. As others have said if that data has been overlain onto an OS map there is no way of knowing what is derived and what is not. Not unless the bod from the council is prepared to stick their neck out and confirm otherwise. As a result the OS would take issue because their data forms part of the definitive map.
Cheers Andy _____ From: [email protected] [mailto:[email protected]] On Behalf Of Dave F. Sent: 25 September 2009 3:16 PM Cc: OSM Talk Subject: Re: [OSM-talk] Breach of Copyright? Tom Hughes wrote: On 25/09/09 14:30, Dave F. wrote: The map he sent is titled as a Definitive Map. It has an OS underlay, but the information laid on top is compiled from Council gathered info. eg GPS survey equipment from an independent company employed to produce the definitive maps. Do you know for absolute certainty that every single detail was gathered from first principles like that? If it was then it is a very unusual bit of local council mapping as they are not generally that scrupulously careful... Well... not every detail, no, but there was a report in the local newspaper: "Two surveyors will be walking virtually every one of the 560 miles of footpath in the area." And also in the Council produced pamphlet where two people were shown holding their very nice big yellow GPS units. Isn't every council having to do the same to produce their Definitive Maps? The reason of course is that they have a license to do what they like with OS data so it largely doesn't matter to them whether they derive things from it (well at least until they try and overlay that data on a google map and get nastygrams from the OS). Tom
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