Re: [talk-au] CC-BY-A data released for Victoria
I think things are being blown out of proportion about duplicates, points of interest is one thing that OSM can excel at, but the point itself is only part of the data, I think the meta information is more important and a lot of this information simply isn't being collected at present by most mappers. I think that duplicates are more likely to occur in metro areas, which if you take into account the availablity of hi-res imagery is usually a trivial matter to merge. On the other hand most rural areas are to varying degrees a blank canvas, unless there is 1 or more avid mappers in the region. So I have no regrets over previous imports, but I think making OSM files available to anyone and everyone is a bad idea simply because it only takes a couple of overly zealous mappers or people with malice and we really will have a problem on our hands. The question then is what to do about data sources becoming available. Simply ignoring them is a mistake because of the additional information they can provide that doesn't exist, there is also a lot of people once shown how could be very useful in collating disparate data sets the question is how to make datasets available in a useful way to people that are going to do useful things with them without being too overly protective. If the majority on this list think a compromise is in order, a possible way to achieve this might be to split the data up into metro/non-metro chunks and import the non-metro and make the metro available to interested parties only on request. In any case I don't think I'll be making future datasets available, I will either import it myself or hand out the data on a per request basis, or just leave it up to others to deal with. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] CC-BY-A data released for Victoria
On Wed, Mar 3, 2010 at 4:47 AM, John Smith deltafoxtrot...@gmail.com wrote: I think making OSM files available to anyone and everyone is a bad idea simply because it only takes a couple of overly zealous mappers or people with malice and we really will have a problem on our hands. I disagree! Be careful not to be condescending to other mappers, and please don't be protective of the data that you could otherwise make available. We're all just as sensible as you. It's good to discuss when and how imports should be made, but not good to discuss who should be allowed or denied access to that data on the basis of how zealous they may or may not be. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] CC-BY-A data released for Victoria
On 3 March 2010 07:56, Roy Wallace waldo000...@gmail.com wrote: I disagree! Be careful not to be condescending to other mappers, and I'm not being condescending, but realistic, accidents happen and people do bad things on purpose. please don't be protective of the data that you could otherwise make available. We're all just as sensible as you. That would be nice, but there is always bad apples and accidents. It's good to discuss when and how imports should be made, but not good to discuss who should be allowed or denied access to that data on the basis of how zealous they may or may not be. Being a little protective will save a lot of hassle undoing the damage later. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] answers to difficult questions
David Murn da...@incanberra.com.au wrote: Ive been using a couple of different techniques for doing power towers, but one that Im looking at for more remote towers is simple survey triangulation as you suggest. Youve got a GPS, all you need is a compass, pen/paper and a little bit of high-school maths. You'll need a theodolite or sextant or similar if you want to be anywhere near accurate. A few degrees of error isn't perceivable on a compass but will create a large error in placement. -- Sam Couter | mailto:s...@couter.id.au OpenPGP fingerprint: A46B 9BB5 3148 7BEA 1F05 5BD5 8530 03AE DE89 C75C signature.asc Description: Digital signature ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Overland Track added
John Henderson snow...@gmx.com wrote: Yes, the figure from a proper survey should have an accuracy of a few centimetres. One of my many jobs (back in the 70s) was a chainman (surveyor's assistant). With modern electronic gear, I believe there's no such job any more. My old man's a surveyor so I've played chainman plenty of times too. These days it's less about the chain and more about carrying the prism to the benchmark and to each spot. You don't expect the surveyor to do the walking, do you? -- Sam Couter | mailto:s...@couter.id.au OpenPGP fingerprint: A46B 9BB5 3148 7BEA 1F05 5BD5 8530 03AE DE89 C75C signature.asc Description: Digital signature ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Overland Track added
Sam Couter wrote: My old man's a surveyor so I've played chainman plenty of times too. These days it's less about the chain and more about carrying the prism to the benchmark and to each spot. You don't expect the surveyor to do the walking, do you? It was a surveyor I met in the field recently who told me that the chainman job had been abolished. I didn't ask her how she cuts down the trees that are in the way. John ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Overland Track added
On Mon, Mar 1, 2010 at 1:24 PM, Lachlan Rogers lach...@rogers.name wrote: Beat me to it! I hiked the Overland Track in January, and recorded a trace of most of it - but the busy getting-back-into-life-after-the-holidays has prevented me from adding it to OSM. I'll be able to provide confirmation of your track. Heh, I was wondering if that might happen. Anyway, I have a few gaps in it (mostly forgetting to turn the gps on after a break), so hopefully your trace will plug that. The biggest holes are around the waterfalls (after Du Cane Hut). Steve ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] CC-BY-A data released for Victoria
On Wed, Mar 3, 2010 at 12:37 PM, Nick Hocking nick.hock...@gmail.com wrote: Another possibility is that we just say - OSM is just a repository for this data and we don't modify it in any way, or add to it, and then just do a complete bulk import every time a new version becomes available. Another possibility (that I *much* prefer) is that the available data is used in the same was as, say, aerial imagery - i.e. not bulk imported, but used directly and interactively by mappers. This is why I think John is wrong to be protective of data that could be useful - I see it as analogous to being protective of, say, aerial imagery. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
