[talk-ph] multiple multipolygons for Pampanga River

[Ronny Ager-Wick]

On 2014-02-19 23:44, Eugene Alvin Villar wrote:
> On Wed, Feb 19, 2014 at 9:26 PM, Ronny Ager-Wick <ronny at ager-wick.com 
> <mailto:ronny at ager-wick.com>> wrote:
>
>     Thanks for the clarification, Pierre.
>     Actually, I tagged the relation both with natural=water, water=river and
>     waterway=riverbank as advised in the wiki (see New Tagging) I assume
>     this is the recommended way to do it?
>
>
> When I trace new rivers polygons, I now use natural=water + water=river for 
> the closed way/multipolygon relation. This tagging makes much more sense 
> than waterway=riverbank, wherein you sometimes have a way crossing across 
> the river to close the polygon but the crossing part is not a riverbank.
Yes, that makes sense, I assume that's why they made the new tag. Not sure if 
I should remove the old tag yet though - is the new one rendered everywhere?

And you reminded me of another thing there. I noticed that a previous 
contributor made a small polygon on both sides of a bridge, but as I made 
polygons for the entire river, I joined them under the bridge so that the 
river multipolygon is continuous. My thought was, it's layer=-1, so it'll 
appear below the bridge anyway, and it's not like the river stops on each side 
of the bridge - it still runs under it. I feel making river polygons complete, 
including under bridges and dams, makes the most sense.
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