Re: [talk-au] Using multipolygon to create large lake
Hi Brett, 2013/4/23 Brett Russell brussell...@live.com.au I have wasted an entire afternoon working on Lake St Clair in Tasmania by using multipolygon relationship to map Lake St Clair. It is a big lake so to get any reasonable detail blows the 2000 point limit of OSM by using a simple polygon. I have reached the point it will become a square of four points and renamed Lake OSM of despair. Annoyingly I was going well at it but then the wheels fell off. I am using Polatch 2 and slowy being going mad as Bing has poor coverage of the area, the rendering takes forever, and driving me up the wall this is my first attempt at using this technique so no idea of it is me, or the every unreliable OSM rendering servers that flunk out on any decent mapping effort. I get lovely squares of missing Bing photo that force save and view then edit. The refresh option takes me to any zoom level that it thinks best to make me insane. Sufficient to say OSM help is about up to the usual poor standard. Polatch does nothing to help to find if you have broken links around the lake and I have been around the lake so many times hunting for such things that sanity and temper is at overload settings. I have the usual OSM issue of half the world saying use coastline on large lakes and the other half saving no, use multipolygons. Large in this context means something like the Great Lakes in the US. You wouldn't want to use coastline for the Lake St Clair. One of the key drawbacks of using coastline is how long it takes the changes to be rendered. So I would always use multipolygons whenever possible. As you may have gathered by my words OSM's and Bing's failures have made this a nightmare of a place to map and almost broken my interest in mapping in OSM. And to top it off my mega expensive Asus laptop is as flakey as ever with even a blue screen of death. If another programs demands an update I will take extremely prejudiced action against the nearest programmer that I can find!!! Can someone please look at the Lake St Clair and tell me what on earth is the issue. Please consider it an act of kindness or the provision of mental health service. Just did so and it renders fine again. As I'm using JOSM I can't really comment on the problems you've experienced with Potlach. The changes I had to make were all about tagging. So the natural=water etc. should go on the relation, not the individual ways. (I guess JOSM would otherwise complain about using an area tag on a non-closed way or so). Also the role for the ways had been set to Lake St Clair but should rather be outer. This I also only found since JOSM complained about it. Bye, Michael ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Using multipolygon to create large lake
Hi Michael Much appreciated. I found though the lake was not rendered but then refreshing and zooming in and out it did come up so the rendering is a little suspect, might be due to Telstra's 3G network issues or the use of Firefox. It appears once again I have fallen foul of Polatch 2 limitations as the relationship editor brings up a very basic menu as what you describe on the relationship attributes does not appear. Frustratingly it shows the lake option but when you select the drop down box it is not an option so once again Polatch 2 crashes and burns as it does with adding peaks forcing the use of the advanced option, which by the looks of it does not exist for relationships. Ok looks like I need to transition to JOSM. Err, how do you even move around it? I once attempted to use it but found it about as friendly as a dog with rabies. O'well yet another piece of software to learn that has its own unique ways of doing simple things like moving around the screen! Might be a good time to find the bottle of scotch and head to bed. But anyway thanks for the help, muchly appreciated along with the hints. And yes I do need to use JOSM as my editor but not tonight as my head hurts. Cheers Brett Date: Tue, 23 Apr 2013 09:57:25 +0200 Subject: Re: [talk-au] Using multipolygon to create large lake From: ohr...@gmail.com To: brussell...@live.com.au; talk-au@openstreetmap.org Hi Brett, 2013/4/23 Brett Russell brussell...@live.com.au I have wasted an entire afternoon working on Lake St Clair in Tasmania by using multipolygon relationship to map Lake St Clair. It is a big lake so to get any reasonable detail blows the 2000 point limit of OSM by using a simple polygon. I have reached the point it will become a square of four points and renamed Lake OSM of despair. Annoyingly I was going well at it but then the wheels fell off. I am using Polatch 2 and slowy being going mad as Bing has poor coverage of the area, the rendering takes forever, and driving me up the wall this is my first attempt at using this technique so no idea of it is me, or the every unreliable OSM rendering servers that flunk out on any decent mapping effort. I get lovely squares of missing Bing photo that force save and view then edit. The refresh option takes me to any zoom level that it thinks best to make me insane. Sufficient to say OSM help is about up to the usual poor standard. Polatch does nothing to help to find if you have broken links around the lake and I have been around the lake so many times hunting for such things that sanity and temper is at overload settings. I have the usual OSM issue of half the world saying use coastline on large lakes and the other half saving no, use multipolygons. Large in this context means something like the Great Lakes in the US. You wouldn't want to use coastline for the Lake St Clair. One of the key drawbacks of using coastline is how long it takes the changes to be rendered. So I would always use multipolygons whenever possible. As you may have gathered by my words OSM's and Bing's failures have made this a nightmare of a place to map and almost broken my interest in mapping in OSM. And to top it off my mega expensive Asus laptop is as flakey as ever with even a blue screen of death. If another programs demands an update I will take extremely prejudiced action against the nearest programmer that I can find!!! Can someone please look at the Lake St Clair and tell me what on earth is the issue. Please consider it an act of kindness or the provision of mental health service. Just did so and it renders fine again. As I'm using JOSM I can't really comment on the problems you've experienced with Potlach. The changes I had to make were all about tagging. So the natural=water etc. should go on the relation, not the individual ways. (I guess JOSM would otherwise complain about using an area tag on a non-closed way or so). Also the role for the ways had been set to Lake St Clair but should rather be outer. This I also only found since JOSM complained about it. Bye, Michael ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Using multipolygon to create large lake
On 23/04/2013 6:27 PM, Brett Russell wrote: Much appreciated. I found though the lake was not rendered but then refreshing and zooming in and out it did come up so the rendering is a little suspect, might be due to Telstra's 3G network issues or the use of Firefox. I've switched from Potlach to JOSM and found it works quite well on a flakey network or even no network at all at times. I'd use the installed version though rather than the webstart. It's well worth the initial pain and I've only done really minor things if any in Potlach since changing. Alex ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
[talk-au] Fwd: [OSM-dev] Call for Presentations - SotM 2013 (annual conference)
-- Forwarded message -- From: Rob Nickerson rob.j.nicker...@gmail.com Date: Tue, Apr 23, 2013 at 2:36 PM Subject: [OSM-dev] Call for Presentations - SotM 2013 (annual conference) To: Talk-GB talk...@openstreetmap.org, OpenStreetMap t...@openstreetmap.org, d...@openstreetmap.org d...@openstreetmap.org, newb...@openstreetmap.org Hi All, - please forward this on to your local communities - It's that time of year again when we look to you, the mind-bogglingly creative OpenStreetMap community, to tell us what you've been up to. That's right - it time to submit your presentation ideas for the annual State of the Map conference. If you have something interesting to present about your work with OpenStreetMap and would like to tell the world, we would love to hear about it. Simply fill out the Call for Presentations form explaining the topic of your presentation. To keep things easy, at this stage we just need a few words, not a full presentation. :-) http://www.stateofthemap.org/info/call-presentations/ (Call for Presentations closes on Monday 10 June 2013.) === A bit more information === The State of the Map 2013 Conference to be held in Birmingham, United Kingdom, from 6 to 8 September is calling for presentations. The theme of this year’s conference is “Change” so we are particularly interested in presentations addressing this theme. Our programme will cover a wide range of topics that will interest everyone from the new OpenStreetMapper to the professional contemplating using our data. We are seeking presentations from businesses, the public sector, charities, and individuals. If you have something to say, for example, about switching to OSM, barriers to its use, apps for mobile mapping, changing community organisation or behaviour, historical mapping, or just anything that you want to present, then make sure you register your proposal with a a few words to describe the topic. Tutorial sessions are especially welcome! Just to add a little more to the Call for Presentations: This year I personally want to try and get as many people involved as possible. We are therefore hoping to have a Poster Exhibition for people who may not be able to attend in person (we can print them locally). If this sounds interesting to you, please use the same form and specify Poster as the Session Format. Posters can be mainly pictorial, or include text. You can bring it yourself or send an electronic copy for local printing (Sponsorship to cover printing costs would be much appreciated). http://www.stateofthemap.org/info/call-presentations/ (Call for Presentations closes on Monday 10 June 2013.) ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Using multipolygon to create large lake
On Tue, 2013-04-23 at 19:27 +1030, Brett Russell wrote: .. Ok looks like I need to transition to JOSM. Err, how do you even move around it? a quick paste from my notes, I refer back to them every time I have been away from JOSM for awhile. Thats a sure sign of a bad user interface ! Zoom using the mouse scrollwheel. Alternatively use the zoom bar at the top-left or press ctrl+',' and ctrl+'.' Zoom using slider topleft screen. Pan using right mouse button and drag. Very hard to use if you don't have a scrollwheel, on a laptop etc. You can do a two finger thing on the touch pad but almost anything is likely to happen when you do. And panning using the right mouse instead of the left is just crazy. But apart from that, it does work well, very little load on the network and quite robust. Certainly a better level of control than the alternative. Get used to the context sensitive way button bars appear (and disappear) depending on what is selected on the right hand side, it does make sense but a bit confronting initially. Try switching the view to one of the alternatives, a different colour scheme can make editing a bit easier too. David ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
