Re: [Talk-GB] OS 1:25K tracing
+1 Power lines is a good example. We have some that were added for Birmingham from the 1:25k which are no longer present. Its easy to fix but a task we needn't have to do if folks traced what they know is present still on the ground. Cheers Andy -Original Message- From: talk-gb-boun...@openstreetmap.org [mailto:talk-gb- boun...@openstreetmap.org] On Behalf Of Steve Hill Sent: 21 January 2010 10:53 PM To: talk-gb@openstreetmap.org Subject: [Talk-GB] OS 1:25K tracing Since the out of copyright 1:25K maps appeared, there has been rather a lot of tracing going on. On the whole, I think the availability of this data is good. However, I have noticed that around the Gower peninsula, quite a few nonexistent roads, etc. have appeared and have been attributed to these maps. I'd like to take the opportunity to point out that blindly tracing fairly old maps without doing any kind of a survey is pretty counterproductive - someone now has to go around and survey and delete these bogus features. By all means, trace the maps to add stuff you know is there, but please don't just trace everything without some local knowledge. -- - Steve xmpp:st...@nexusuk.org sip:st...@nexusuk.org http://www.nexusuk.org/ Servatis a periculum, servatis a maleficum - Whisper, Evanescence ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] OS 1:25K tracing
Steve Hill wrote: Since the out of copyright 1:25K maps appeared, there has been rather a lot of tracing going on. On the whole, I think the availability of this data is good. However, I have noticed that around the Gower peninsula, quite a few nonexistent roads, etc. have appeared and have been attributed to these maps. I'd like to take the opportunity to point out that blindly tracing fairly old maps without doing any kind of a survey is pretty counterproductive - someone now has to go around and survey and delete these bogus features. By all means, trace the maps to add stuff you know is there, but please don't just trace everything without some local knowledge. +1 ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] OS 1:25K tracing
+1, I think we should be printing off maps and using them during walks. Mark whats there, or not, with a highlighter pen. Havent used 1:25K maps yet, but I have compared them using google when a similar issue arose a couple of days ago. Its clear a huge amount of changes have happened and it would be stupid to simply trace. We can't trace over google/bing satelite imagery because contract/terms of use, but it is tempting use the google satellite images to check what can be traced from the 1:25K (still the chance google is out-of-date!). This doesn't appear to go against google's terms of use. Jason 2010/1/21 Steve Hill st...@nexusuk.org Since the out of copyright 1:25K maps appeared, there has been rather a lot of tracing going on. On the whole, I think the availability of this data is good. However, I have noticed that around the Gower peninsula, quite a few nonexistent roads, etc. have appeared and have been attributed to these maps. I'd like to take the opportunity to point out that blindly tracing fairly old maps without doing any kind of a survey is pretty counterproductive - someone now has to go around and survey and delete these bogus features. By all means, trace the maps to add stuff you know is there, but please don't just trace everything without some local knowledge. -- - Steve xmpp:st...@nexusuk.org xmpp%3ast...@nexusuk.org sip:st...@nexusuk.org sip%3ast...@nexusuk.org http://www.nexusuk.org/ Servatis a periculum, servatis a maleficum - Whisper, Evanescence ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] OS 1:25K tracing
On Fri, 22 Jan 2010, Jason Cunningham wrote: We can't trace over google/bing satelite imagery because contract/terms of use, but it is tempting use the google satellite images to check what can be traced from the 1:25K (still the chance google is out-of-date!). This doesn't appear to go against google's terms of use. Yes, I don't see a problem with this, but it would be nice to hear some legal direction from those in the know. -- - Steve xmpp:st...@nexusuk.org sip:st...@nexusuk.org http://www.nexusuk.org/ Servatis a periculum, servatis a maleficum - Whisper, Evanescence ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
