move recycling icon to SVG

[nebulon42]

Implements part of #1165 by changing the icon for amenity=recycling to SVG (as requested by @mkoniecz in #1012). This should be an easy one as the symbol (recycling-16.svg) did not change.

http://www.openstreetmap.org/#map=19/48.19712/16.40279
before:

after:

[pnorman]

Do the fine lines of the arrowhead and the thin gaps at the corners work for 16px size?

[nebulon42]

Not really well, but I have experimented a lot and was not able to come up with a better version. This is the closest I got: recycling-16.svg

I'm open for improvements though. Maybe we can also replace the icon for #1012 first and subsequently improve it.

[matthijsmelissen]

Do you have a rendering demo for this one?

[nebulon42]

Not much has changed, see above.

[pnorman]

Not really well, but I have experimented a lot and was not able to come up with a better version. This is the closest I got: recycling-16.svg

Ya - the recycling symbol is hard to do in low res. There's been a lot of effort done to make it work with plastic molding, but I'm not aware of much with rasterized images.

The recycling symbol would be a good use case for drawing a third and rotating it, except Mapnik doesn't support that.