health related SVG icons

[nebulon42]

Implements part of #1165 and focuses on health related icons.

Following symbols are affected:

amenity=hospital (slightly had to change the icon for pixel alignment) (hospital-16.svg)

amenity=pharmacy (new icon proposal) (pharmacy-16.svg)

http://www.openstreetmap.org/#map=18/46.62799/13.37186
before:

after:

[nebulon42]

I noticed some oddities (more than one symbol) for hospital areas when moving from point-file to marker-file. I don't know what the reason for this might be.

[matkoniecz]

@nebulon42

some oddities (more than one symbol)

Can you give examples of affected areas?

[nebulon42]

Yes, sorry, I forgot. In my TileMill setup the way http://www.openstreetmap.org/way/253101687 suddenly displays the icon more than once after changing it to SVG and using marker-file.

edit: see also #1171 (comment)

[pnorman]

I believe you can export from inkscape rather than save and get a cleaner SVG

[nebulon42]

@pnorman This is what I'm already trying to do. I'm saving as (translation of Inkscape UI might be wrong) "normal SVG" instead of "Inkscape-SVG". I think it will not get cleaner. This is not optimal, but editing files by hand is not feasible IMO.

[imagico]

As a general remark - to properly assess the suitability of an icon you need to see it at the target scale in a typical environment. For useful feedback it would therefore be good to have sample renderings available.

Specifically here - there are various icons currently with a square or circle boundary and a symmetric symbol inside. Some of them work better with even pixel counts, some better with odd. If you want all these icons to be the same size you will have to decide on either an even or an odd number of pixels.

[nebulon42]

Of course, I was already in the process of adding samples. Here they are. I think the improvement in sharpness is quite visible. Currently both crosses have the same size.

[matkoniecz]

Currently both crosses have the same size.

I think that in old version larger hospital icon was intentional. I also think that it was a good idea (though maybe this should be solved by showing label and icon earlier for large areas).

[nebulon42]

The old version did not align to pixels and hence would cause blurriness. That's why I couldn't make it less wide. We have to deal with a lot of tradeoffs here, especially at these small sizes. If both are too similar I suggest that we should find a better/different symbol for pharmacy.

edit: maybe colouring pharmacy icon in shop colour could help making it distinctive?

[nebulon42]

Sorry for changing things so often. I really like the pharmacy icon used by the Humanitarian style (CC0 from Nori icon set), it is easily recognisable and more different from hospital.

[nebulon42]

The problem with markers on ways is now solved (see #1171 (comment)).

[matthijsmelissen]

Looks nice. I'd propose to merge the new icons not in the version which is about to be released, but in the one after that.

[pnorman]

I'm really going to have to get used to the sharper look.