Daniel Sabo ([email protected]) wrote:
On Jan 30, 2011, at 6:44 PM, Steve Bennett wrote:
On Mon, Jan 31, 2011 at 1:16 PM, Daniel Sabo <[email protected]> wrote:
Right now Potlatch doesn't even render landuse multipolygons
though, so there's not much incentive for people to click a button
like that :).
I do appreciate that my pro-multipolygon perspective comes from
working primarily with JOSM where they've gotten very easy to use,
Potlatch users probably are as annoyed by working with my
multipolygons as much as I am by their collinear ways.
I'd like to have a better understanding of support for multipolygons
across different renderers and editors. For example, does mapnik
support mp's on *all* tags, or is it case-by-case?
Mapnik renders multipolygons exactly the same way as it renders
simple polygons, so all tags will work.
JOSM renders any area tags on multipolygons.
Potlatch 1 doesn't render areas on multipolygons, but it does
highlight a way in blue when it's a member of a multipolygon.
Potlatch 2 doesn't give have any visual cues that I've seen for
multipolygons.
Actually, in my experience of PL2 if you move the cursor over a
multipolygon then all the associated inner and outer ways are
highlighted.
Going back to the OP, my understanding was that multipolygons should
be used in preference to overlapping ways for the reasons given in
this thread.
I've noticed, however, that Osmarender doesn't render islands which
are multipolygons (but Mapnik does).
--
Charlie
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