Re: [OSM-talk] satellite Imagery missing
On 21 September 2011 14:18, John Sturdy jcg.stu...@gmail.com wrote: And I'd be worried about being brought to the attention of the authorities for being seen pointing lasers at infrastructural things such as electricity pylons --- do people tend to complain about having their buildings etc visibly surveyed? (I'm a newbie at all this, my only experience of potential problems has been that I could see that people were wondering what I was doing when I was walking around writing down house numbers.) Or does a hi-vis jacket make it all alright ;-) ? __John When I'm specifically out mapping, or cycling (so it's a safety thing too), I often wear this OSM high-vis jacket. http://shop.opencyclemap.org/products/openstreetmap-surveyors-jacket Wearing it has mixed results but definitely a difference with people think I'm official (or from Google). I get less people questioning what I'm doing, more people asking me for directions or to fix/report something. In rougher residential areas people are more defensive to the high-vis, they think I'm from the council or something. But it's nice to be asked what I'm doing with interest. You soon learn key words that are good to mention, I like to make sure I get in volunteer, hobby, and more detailed more uses than google. This is made easier by kindly offering them a leaflet so they can go away and read about it or look at the map I've made. http://shop.opencyclemap.org/products/openstreetmap-promotional-leaflets (free to UK addresses) -- Gregory o...@livingwithdragons.com http://www.livingwithdragons.com ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
Kenneth Gonsalves wrote: 90% of my mapping is in such areas - gps, josm and repeated visits to the area are needed. Camera and laser range finder are a plus. JOSM is absolutely not needed for GPS surveying - you can use it if you like, but I do pretty much all my mapping in Potlatch with GPS traces rather than Bing. cheers Richard -- View this message in context: http://gis.638310.n2.nabble.com/satellite-Imagery-missing-tp6796544p6815403.html Sent from the General Discussion mailing list archive at Nabble.com. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On Wed, 2011-09-21 at 02:15 -0700, Richard Fairhurst wrote: Kenneth Gonsalves wrote: 90% of my mapping is in such areas - gps, josm and repeated visits to the area are needed. Camera and laser range finder are a plus. JOSM is absolutely not needed for GPS surveying - you can use it if you like, but I do pretty much all my mapping in Potlatch with GPS traces rather than Bing. no disclosure ;-) -- regards Kenneth Gonsalves ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On Wed, Sep 21, 2011 at 6:33 AM, kenneth gonsalves law...@thenilgiris.com wrote: On Tue, 2011-09-20 at 10:49 +0200, Erik Johansson wrote: 90% of my mapping is in such areas - gps, josm and repeated visits to the area are needed. Camera and laser range finder are a plus. Do you actually use an laser range finder, isn't that a bit hard to use? I would really like to hear how you use it, if not an extensive exposé then a shor one. :-) it is dead easy - just point it at the target and click - it gives the distance. So do you get the distance from two known points, and triangulate by distance, or do you use distance and bearing from one known point, or something else? And I'd be worried about being brought to the attention of the authorities for being seen pointing lasers at infrastructural things such as electricity pylons --- do people tend to complain about having their buildings etc visibly surveyed? (I'm a newbie at all this, my only experience of potential problems has been that I could see that people were wondering what I was doing when I was walking around writing down house numbers.) Or does a hi-vis jacket make it all alright ;-) ? __John ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
2011/9/21 kenneth gonsalves law...@thenilgiris.com: it is dead easy - just point it at the target and click - it gives the distance. At over 150 metres, a tripod helps, unless you have very steady hands. It is useful for getting the exact dimensions of buildings or golf greens. These can then be plotted in josm using the measurement tool. AFAIK the JOSM measurement tool does not provide very exact measurements but is a bearable approximation. Not sure if this matters to you, but I guess you shouldn't rely too much on the displayed values. See for instance: http://josm.openstreetmap.de/ticket/4849 You should also be careful not to select nodes as well: http://josm.openstreetmap.de/ticket/6872 cheers, Martin PS: Maybe the first issue has to do with projections and the way these calculations are done (flat vs. elliptical), and it may well be that the differences are not significant, dependant on where you measure and how long the distances are. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On 9/21/2011 9:18 AM, John Sturdy wrote: And I'd be worried about being brought to the attention of the authorities for being seen pointing lasers at infrastructural things such as electricity pylons --- do people tend to complain about having their buildings etc visibly surveyed? I have been successful by appearing in tourist class - GPS out of sight, but with the antenna facing skyward, and recording done by camera. Using a laser measurement tool will improve survey accuracy, but may increase the chances of raising questions. And use judgement about detailed survey of military or secure government buildings. Having business cards helps to quickly answer questions. I've only had to show a card once. http://wiki.openstreetmap.org/wiki/Business_card http://wiki.openstreetmap.org/w/images/2/2c/OSM-business-cards.pdf ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On Wed, 2011-09-21 at 14:18 +0100, John Sturdy wrote: it is dead easy - just point it at the target and click - it gives the distance. So do you get the distance from two known points, and triangulate by distance, or do you use distance and bearing from one known point, or something else? we get the approximate dimensions and location with gps - the range finder gives the exact dimensions. And I'd be worried about being brought to the attention of the authorities for being seen pointing lasers at infrastructural things such as electricity pylons --- do people tend to complain about having their buildings etc visibly surveyed? (I'm a newbie at all this, my only experience of potential problems has been that I could see that people were wondering what I was doing when I was walking around writing down house numbers.) Or does a hi-vis jacket make it all alright ;-) ? this is country specific. Most people tend to think a range finder is a camera or binoculars. -- regards Kenneth Gonsalves ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On Wed, 2011-09-21 at 15:35 +0200, Martin Koppenhoefer wrote: 2011/9/21 kenneth gonsalves law...@thenilgiris.com: it is dead easy - just point it at the target and click - it gives the distance. At over 150 metres, a tripod helps, unless you have very steady hands. It is useful for getting the exact dimensions of buildings or golf greens. These can then be plotted in josm using the measurement tool. AFAIK the JOSM measurement tool does not provide very exact measurements but is a bearable approximation. Not sure if this matters to you, but I guess you shouldn't rely too much on the displayed values. See for instance: my gps is accurate to 1-5 yards depending on the conditions - the range finder is accurate to a yard. So I can live with the approximation of JOSM. -- regards Kenneth Gonsalves ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On Tue, 2011-09-20 at 10:49 +0200, Erik Johansson wrote: 90% of my mapping is in such areas - gps, josm and repeated visits to the area are needed. Camera and laser range finder are a plus. Do you actually use an laser range finder, isn't that a bit hard to use? I would really like to hear how you use it, if not an extensive exposé then a shor one. :-) it is dead easy - just point it at the target and click - it gives the distance. At over 150 metres, a tripod helps, unless you have very steady hands. It is useful for getting the exact dimensions of buildings or golf greens. These can then be plotted in josm using the measurement tool. -- regards Kenneth Gonsalves ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On Thu, 2011-09-15 at 05:05 -0700, Douglas Musaazi wrote: We were able to use the walking papers and the g.p.s unit that enabled us to have better accuracy, using potlatch without the satellite imagery was like working while blind folded and we managed to make the edits. We never used Merkaator or JOSM as it was a one day event, and it was an introductory to the 20 participants, so the quickest tools had to be used. I would like to know if there is any other means, or when the satellite image will be available to OSM for such areas. 90% of my mapping is in such areas - gps, josm and repeated visits to the area are needed. Camera and laser range finder are a plus. -- regards Kenneth Gonsalves ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On 15/09/11 13:05, Douglas Musaazi wrote: On Saturday 10th September 2011, we held a mapping day event at Uganda Christian University Mukono in Uganda, where we spread the idea of mapping and updating the Open Street World map as part of the mapping Uganda Initiative at pamoya (http://www.pamoya.com/node/13275), however, the satellite imagery for the area (http://www.openstreetmap.org/?lat=0.35501lon=32.74088zoom=17layers=M) was not available. We were able to use the walking papers and the g.p.s unit that enabled us to have better accuracy, using potlatch without the satellite imagery was like working while blind folded and we managed to make the edits. We never used Merkaator or JOSM as it was a one day event, and it was an introductory to the 20 participants, so the quickest tools had to be used. I would like to know if there is any other means, or when the satellite image will be available to OSM for such areas. There is imagery (from Bing) there, but only up to z13. We have the imagery we're given (or rather allowed to use) I'm afraid and we don't have a way to magically conjure up high res imagery where Bing don't have it. Tom -- Tom Hughes (t...@compton.nu) http://compton.nu/ ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
2011/9/15 Douglas Musaazi douglasmusa...@yahoo.com: On Saturday 10th September 2011, we held a mapping day event at Uganda Christian University Mukono in Uganda, where we spread the idea of mapping and updating the Open Street World map as part of the mapping Uganda Initiative at pamoya (http://www.pamoya.com/node/13275), however, the satellite imagery for the area (http://www.openstreetmap.org/?lat=0.35501lon=32.74088zoom=17layers=M) was not available. Hi Douglas, this looks great. Happy to see OSM growing in Uganda. cheers, Martin PS: As a side note you might want to reconsider the classification of the street in the middle named path, which is currently primary (which is a main connection road usually to be found between cities and larger towns) ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] satellite Imagery missing
On 15 September 2011 13:37, Tom Hughes t...@compton.nu wrote: On 15/09/11 13:05, Douglas Musaazi wrote: On Saturday 10th September 2011, we held a mapping day event at Uganda Christian University Mukono in Uganda, where we spread the idea of mapping and updating the Open Street World map as part of the mapping Uganda Initiative at pamoya (http://www.pamoya.com/node/**13275http://www.pamoya.com/node/13275), however, the satellite imagery for the area (http://www.openstreetmap.org/**?lat=0.35501lon=32.74088** zoom=17layers=Mhttp://www.openstreetmap.org/?lat=0.35501lon=32.74088zoom=17layers=M) was not available. We were able to use the walking papers and the g.p.s unit that enabled us to have better accuracy, using potlatch without the satellite imagery was like working while blind folded and we managed to make the edits. We never used Merkaator or JOSM as it was a one day event, and it was an introductory to the 20 participants, so the quickest tools had to be used. I would like to know if there is any other means, or when the satellite image will be available to OSM for such areas. There is imagery (from Bing) there, but only up to z13. We have the imagery we're given (or rather allowed to use) I'm afraid and we don't have a way to magically conjure up high res imagery where Bing don't have it. We can ask for it. Steve made some mention at the conference, and so I've found this page which you should edit to add Uganda. I suggest including a link to the map you've done so far, it is a very good work/effort without aerial imagery. http://wiki.openstreetmap.org/wiki/Bing/Priorities You could also make your own aerial imagery, although this seems to be quite difficult and may not provide enough of what you want. http://wiki.openstreetmap.org/wiki/Vertical_Aerial_Photographs -- Gregory o...@livingwithdragons.com http://www.livingwithdragons.com ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
