[Talk-ca] Appropriate level of detail and map rendering

[Gregory]

On 15 November 2012 13:22, Tom Taylor <tom.taylor.stds at gmail.com> wrote:
>
>
> I added in the almost dozen shops and offices, each as a stand-alone node
> with appropriate attributes (amenity/shop/office, plus name, plus
> addr:housenumber). Is this in the spirit of the OpenStreetMap exercise or
> have I gone too far?
>
Yes this is great. Drawing the outlines of each building/shop is also good.
You have not yet done waste_paper bins or lamp posts, which some people do
(perhaps an unmaintainable level of detail).
You can take a look at other areas (and from the Edit menu choose Browse
Data) to see what other mappers do. Or look at their edits from their user
page.


>
> As for rendering, it looks like priority has been given to some categories
> over others. The map now shows the ATM and bank, a cafe, and a
> hairdresser's, but not the other stuff. The name of the cafe is in bold and
> masks the symbol of the public telephone outside it. The overall name
> "Kilborn Shopping Centre" no longer shows since I added the detail.
>

When there is a lot of stuff to display, the main map avoids icon/text
'clashes'. So if one icon or name is going to get in the way of another
one, then it will only draw one of those.
Don't read into what is/isn't shown, it's not human/manually selected and
the algorithm doesn't think about it that much. Some people(like me) think
we should have an extra zoom level, but that would require more resources
to generate the map tiles(images).

Different renderings(outputs) of the OSM data show different things. So you
might want to add stuff that isn't shown on OSM.org. Some renderings are
more specific, so there are less likely to be clashes and things hidden as
a result.
Here is one list of OSM outputs.
http://wiki.openstreetmap.org/wiki/List_of_OSM_based_Services


-- 
Gregory
osm at livingwithdragons.com
http://www.livingwithdragons.com
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