Hi Brett, 2013/4/23 Brett Russell <[email protected]>
> 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
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