Re: [talk-au] railway lines and nearmap
2009/12/26 Richard Colless : >> If you do this, just add a note/fixme that the information you add >> isn't accurately surveyed, otherwise they may assume it has been. > > How do I do this in Potlatch? You can add a new tag manually, there is/was a plus icon to the right hand side of that pane. The key can be 'fixme' or 'note' and just set the value to something useful. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
2009/12/26 Steve Bennett : > I know what you mean. I wish we had better ways of indicating the difference > between absence of feature and unmapped. I sometimes resort to drawing > fences for similar reasons. I've also used landuse=residential to indicate Several of us on this list plan trips by blank areas on OSM and non-blank areas on other maps, what we currently lack is a good way/method to store information about non-existent roads. In Qld this is somewhat simpler since we have access to property boundaries and we can simply mark non-existent roads as non-existent and line them up with the gaps between properties, however we can't use this method any where else yet. I've penned a few thoughts on what to do about this on the wiki, but they all seem to be lacking for various reasons. http://wiki.openstreetmap.org/wiki/Australian_Tagging_Guidelines#What_happens_if_another_map_says_a_road_exists_but_isn.27t_really_there.3F But yes, knowing the difference between non-existent and non-mapped is very helpful, just ask Liz :) ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
John Smith wrote: 2009/12/26 Richard Colless : What's people opinions on doing so ? More information the better :) Just because it exists in the database doesn't mean it always has to be rendered, different renderings suit different people, which is why the OpenCycleMap tiles exist. I've been driving around some areas that are OSM mapped, but almost devoid of features except the road. I find that having extra non-drivable features makes the map more "comfortable" - gives you confidence in your location. (I've been adding small creeks and dams around SW Sydney). Railway lines would add the same detail, but precise accuracy wouldn't be needed, so they could be added quickly, without detailed surveying. If you do this, just add a note/fixme that the information you add isn't accurately surveyed, otherwise they may assume it has been. How do I do this in Potlatch? ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
On Sat, Dec 26, 2009 at 9:59 PM, Richard Colless wrote: > I've been driving around some areas that are OSM mapped, but almost devoid > of features except the road. I find that having extra non-drivable features > makes the map more "comfortable" - gives you confidence in your location. > (I've been adding small creeks and dams around SW Sydney). > > I know what you mean. I wish we had better ways of indicating the difference between absence of feature and unmapped. I sometimes resort to drawing fences for similar reasons. I've also used landuse=residential to indicate areas that are indeed otherwise unmapped. (http://osm.org/go/uGys1CiI- for an example) Yesterday on a ride I ended up following a dead end bike path, because I gambled that the end of the path was simply unmapped, rather than non-existent. I've since added a forest at the end of the path to try and communicate that the path really doesn't continue. Steve ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
2009/12/26 Richard Colless : > What's people opinions on doing so ? More information the better :) Just because it exists in the database doesn't mean it always has to be rendered, different renderings suit different people, which is why the OpenCycleMap tiles exist. > I've been driving around some areas that are OSM mapped, but almost devoid > of features except the road. I find that having extra non-drivable features > makes the map more "comfortable" - gives you confidence in your location. > (I've been adding small creeks and dams around SW Sydney). Railway lines > would add the same detail, but precise accuracy wouldn't be needed, so they > could be added quickly, without detailed surveying. If you do this, just add a note/fixme that the information you add isn't accurately surveyed, otherwise they may assume it has been. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
Franc Carter wrote: Hi, Somethng that struck me recently is that in areas with NearMap coverage there is potential to do a much better job of mapping railway lines - i.e lines, sidings etc could be added. What's people opinions on doing so ? cheers I've been driving around some areas that are OSM mapped, but almost devoid of features except the road. I find that having extra non-drivable features makes the map more "comfortable" - gives you confidence in your location. (I've been adding small creeks and dams around SW Sydney). Railway lines would add the same detail, but precise accuracy wouldn't be needed, so they could be added quickly, without detailed surveying. Richard ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
2009/12/26 James Andrewartha : > Speaking of Transperth, anyone want to hazard a guess as what the > license on > http://www.transperth.wa.gov.au/TimetablesMaps/SpatialDataAccess/tabid/254/Default.aspx > means? I suspect "non-exclusive, limited and revocable rights to use, > reproduce, and redistribute" isn't quite enough, as there's no right > to alter the data. Maybe you could ask them to license it as cc-by the same as most data on data.australia.gov.au ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
2009/12/25 John Smith :
> 2009/12/25 Franc Carter :
>> Hi,
>>
>> Somethng that struck me recently is that in areas with NearMap
>> coverage there is potential to do a much better job of mapping railway
>> lines - i.e lines, sidings etc could be added.
>>
>> What's people opinions on doing so ?
http://wiki.openstreetmap.org/wiki/Key:railway lists
service={yard,siding,spur} so there's obviously support for this.
> Perth's imagery is so good you can see how the switch points are positioned.
And indeed the Perth yard has been mapped quite well, the only issue
is how to tag lines that go through a building:
http://www.openstreetmap.org/?lat=-31.94934&lon=115.87216&zoom=17&layers=B000FTF
I'm tending towards the opinion that if it's dual track, both lines
should be mapped. Both for clarity, since you have to map both tracks
when they diverge anyway, but also for routing based on associating
platforms with lines. All Transperth stops have numbers, including
platforms:
http://www.transperth.wa.gov.au/TimetablesMaps/Services4mobiles/TransperthsSMSservice/tabid/341/Default.aspx
Speaking of Transperth, anyone want to hazard a guess as what the
license on
http://www.transperth.wa.gov.au/TimetablesMaps/SpatialDataAccess/tabid/254/Default.aspx
means? I suspect "non-exclusive, limited and revocable rights to use,
reproduce, and redistribute" isn't quite enough, as there's no right
to alter the data.
James Andrewartha
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Re: [talk-au] railway lines and nearmap
2009/12/26 Steve Bennett : >> If all you cared about was cycling information, why didn't you use >> OpenCycleMap tiles? > > Shut up. > > And merry christmas, > Steve. > This is why you should put as much information into the database as possible, you may not care about railway lines, but railway enthusiests do and they might want to only render train tracks... OpenTrainMap? ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
> > If all you cared about was cycling information, why didn't you use > OpenCycleMap tiles? > Shut up. And merry christmas, Steve. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
2009/12/26 Steve Bennett : > Hmm, speaking from experience of a ride today, I'd actually prefer less > detail, but maybe that's a question for the renderer. Trying to follow a > bike path that runs beside, then crosses over, a set of train tracks is > really tough - all the lines look very similar. If all you cared about was cycling information, why didn't you use OpenCycleMap tiles? ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
Hmm, speaking from experience of a ride today, I'd actually prefer less detail, but maybe that's a question for the renderer. Trying to follow a bike path that runs beside, then crosses over, a set of train tracks is really tough - all the lines look very similar. Anyway, that's just me grumbling - presumably mapping all the lines is the right thing to do. Steve On Fri, Dec 25, 2009 at 11:11 PM, John Smith wrote: > 2009/12/25 Franc Carter : > > Hi, > > > > Somethng that struck me recently is that in areas with NearMap > > coverage there is potential to do a much better job of mapping railway > > lines - i.e lines, sidings etc could be added. > > > > What's people opinions on doing so ? > > Perth's imagery is so good you can see how the switch points are > positioned. > > I've already been going through train lines in Brisbane and improving > them where I could. > > ___ > Talk-au mailing list > Talk-au@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-au > ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] railway lines and nearmap
2009/12/25 Franc Carter : > Hi, > > Somethng that struck me recently is that in areas with NearMap > coverage there is potential to do a much better job of mapping railway > lines - i.e lines, sidings etc could be added. > > What's people opinions on doing so ? Perth's imagery is so good you can see how the switch points are positioned. I've already been going through train lines in Brisbane and improving them where I could. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
[talk-au] railway lines and nearmap
Hi, Somethng that struck me recently is that in areas with NearMap coverage there is potential to do a much better job of mapping railway lines - i.e lines, sidings etc could be added. What's people opinions on doing so ? cheers -- Franc ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
