Re: [talk-au] Canberra Mapping - out of date
On Wed, 2011-05-04 at 21:22 +1000, Nick Hocking wrote: Unfortunately this has meant that Canberra OSM data is now badly out of date. I have recently heard of a situation where up-to-date Canberra data could have been *extremely* usefull to somebody. Just out of interest, I noticed youve been 'realigning' some nearmap sourced ways to bing imagery recently in my area. You claim to be making the map up-to-date, but are you aware that the Bing imagery for Canberra is from March 2001, while the latest nearmap source (which they were traced from and which you claim to be out-of-date) was acquired November 2010? This could almost be considered vandalism, what you are doing to the quality of the map data available for Canberra. Please dont touch any of my 'out-of-date' edits from the past 6 months to realign them with 10 year old aerial imagery. Also, if youre going to trace ways from Bing, why tag them as source=nearmap? Are you delibrately trying to muddy the waters? David ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
[talk-au] Fwd: [Aust-NZ] LINZ survey
-- Forwarded message -- From: Alister Hood alister.h...@synergine.com Date: 5 May 2011 11:58 Subject: [Aust-NZ] LINZ survey To: OSGeo NZ/AU aust...@lists.osgeo.org, nzopen...@googlegroups.com Hi everyone, First, apologies if you get this twice because you’re on both lists. I don’t think anyone has mentioned yet: if anyone is interested, LINZ is conducting “an online survey about the geospatial industry in New Zealand”, to “help inform LINZ's future geospatial product and service strategies”. The survey closes at midnight on 10th May. https://surveys.researchnz.com/RegisterLINZGeospatial Regards, Alister ___ Aust-NZ mailing list aust...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/aust-nz ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Canberra Mapping - out of date
On Fri, 2011-05-06 at 12:19 +1000, John Smith wrote: On 6 May 2011 10:47, David Murn da...@incanberra.com.au wrote: You mentioned previously that Bing was out of alinement by up to 100m, if this is the case it is a clear case of vandalism since he should be at the vest least realigning Bing imagery to GPS traces. The few times Ive used it, Ive found the accuracy to vary anywhere from 0-100m. The accuracy varies in local regions too, so while one part of a suburb might be offset 50m north-east of reality, another part of the suburb might be offset 50m south-east of reality, this means you constantly have to realign the imagery while working with it. I remember hearing once about someone writing some sort of plugin or database which kept a track of how offset parts of the bing imagery are, but never heard if it was successful or how extensive the coverage is. Given its age (over 10 years old in Canberra), and these nasty accuracy limitations anyone would be crazy to use it in preference to NearMap. David ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Canberra Mapping - out of date
On 6 May 2011 10:47, David Murn da...@incanberra.com.au wrote: I remember hearing once about someone writing some sort of plugin or database which kept a track of how offset parts of the bing imagery are, but never heard if it was successful or how extensive the coverage is. http://wiki.openstreetmap.org/wiki/Talk:True_Offset_Process#The_fool.27s_errand Given its age (over 10 years old in Canberra), and these nasty accuracy limitations anyone would be crazy to use it in preference to NearMap. Was surveying around Casey on the weekend. Impressed by the OSM coverage as always of the new areas. Still a just a cleared area on the bing imagery, but I still would have put it more recent than 10 years. Maybe 3 or 4? Bing and Nearmap both seemed well aligned, but Nearmap with far superior imagery. Ian. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Canberra Mapping - out of date
On Fri, 2011-05-06 at 14:02 +1000, Ian Sergeant wrote: On 6 May 2011 10:47, David Murn da...@incanberra.com.au wrote: Given its age (over 10 years old in Canberra), and these nasty accuracy limitations anyone would be crazy to use it in preference to NearMap. Was surveying around Casey on the weekend. Impressed by the OSM coverage as always of the new areas. Casey was one of the areas I was talking about wanting to survey last year but it was already done before the construction fences were even taken down, street names and all (and a single GPS trace, now covered by dozens more). Still a just a cleared area on the bing imagery, but I still would have put it more recent than 10 years. Maybe 3 or 4? The Bing aerial imagery analyzer gives different results for different areas, youre right, some of the newer parts of gungahlin are only 3 years old, but the imagery around Tuggeranong which I quickly checked is showing as March 2001. Bing and Nearmap both seemed well aligned, but Nearmap with far superior imagery. In related news, NearMap are flying Canberra as I write this, so expect even more superior (and up-to-date) imagery online in the next couple of weeks, hopefully with a little more coverage of unmapped areas to go and explore. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
