On Thu, May 29, 2008 at 3:42 AM, Dave Stubbs <[EMAIL PROTECTED]> wrote:
> On Thu, May 29, 2008 at 3:57 AM, Robin Paulson <[EMAIL PROTECTED]> > wrote: > > i've got a situation come up, that i'm not sure how to map: > > > > > http://openstreetmap.org/?lat=-36.9241&lon=174.77611&zoom=17&layers=0B0FF > > > > this shows a park which is near the coast. it includes an area of > > water linked, by a man-made tunnel, to the ocean, wholly contained > > with in the park. previously, it was completely open to the sea - the > > motorway to the south since built on a causeway has cut it off, apart > > from the tunnel. therefore, the area of water is tidal, and hence is > > demarcated from land by the coastline > > > > how could this be mapped/tagged? initially, i tagged the coastline as > > layer=1 to make it show up on the renderers above the park (by > > default, park renders above coastline AFAICS). > > > > any ideas? should the lagoon be tagged as coastline as i have done, or > > is that stretching a point too far? i don't think the park stops at > > the water's edge, so cutting a hole in it is not suitable > > just tag it natural=water. > You can add some random tidal=yes, water=salty kind of thing if you want. > > Whether something is coastline always gets a little fuzzy in places. > > > > > > this also brings up the question of what happens when a park (such as > > the great barrier reef) extends over an ocean/islands: does it obscure > > what is underneath? is there a way round this? > > > > I think this is a very different kind of "park". You're no longer > defining a physical thing, but a logical one. The rendering will have > to take account of that, as should the tagging. > > Dave > Parks are *always* logical things. Even the "traditional" kind--without some designation, they're just grassy areas (or trees). Some sort of translucent rendering would be cool... And no, I'm not volunteering to do it. ;-) Karl
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