On Wed, Dec 16, 2020 at 1:24 PM Tomas Straupis <tomasstrau...@gmail.com> wrote:
> This might be correct. I guess it depends on direction you look at > it: what is exception from the reservoir rule - hard shoreline or non > hard. I was thinking of the ways to map fuzzy shore in OSM and had the > same idea to tag fuzzy shoreline as a line - this would be the same > way as in your example but would need to de-emphasize rather than > emphasize the shoreline. And I'm sure I've seen a legend with blackish > border for reservoir, but do not remember if that was USGS or NATO map > (reservoirs have some distinct properties worth depicting on some > specific maps)... And I remember talking about lake/reservoir black > border symbolisation with one of the leading cartography experts in > Lithuania. > In my part of the world, the most significant reservoirs are the large ones of the New York City water system (some of which are a couple of hundred km from the city itself), and the Great Sacandaga Lake. They have hardened shorelines only near the dams or where the reinforcement is needed to protect a feature such as a highway. Otherwise, if you couldn't see the dams (and the signage!) they'd be hard to distinguish from natural lakes. Where I have good hydrology data, I render normal seasonal limits (by drawing two shorelines), the presence or absence of emergent vegetation, and the flood stage (a dashed blue line). That makes for a pretty complex (and somewhat 'cubistic') rendering, as at https://kbk.is-a-geek.net/catskills/test4.html?la=43.5897&lo=-74.6176&z=15, but at least gives me some idea how likely I am to get my feet wet. (Or drown, in the wrong season!) I have no plans to get any of the data behind this rendering into OSM. I've managed imports before. I might again. I'm not going to attempt one on this scale, particularly when I'm not certain about the data quality. -- 73 de ke9tv/2, Kevin
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