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Re: Accessible map with polygons

From: Chaals McCathie Nevile <chaals@yandex.ru>
Date: Tue, 23 Jan 2018 20:06:34 +0100
Cc: "W3C WAI ig" <w3c-wai-ig@w3.org>
To: "Matt King" <a11ythinker@gmail.com>, "Michiel Bijl" <michiel.list@moiety.me>
Message-ID: <op.zda508h0ftbnq3@desktop-kurf4r9.lan.ndia.local>
(Late to the party... I apparently didn't check the map to find out how
long it wold take ;) )

On Wed, 29 Nov 2017 10:27:10 +0100, Michiel Bijl <michiel.list@moiety.me>

> On 29 Nov 2017, at 09:04, Matt King <a11ythinker@gmail.com> wrote:
>>> The polygon is drawn around a point on the map … does that point have  
>>> a name, address, or something to identify it?
> ... an actual list of all the point within that area would be pointless  
> (ha) because there would be too much data. You could filter it down to a  
> few places of interest but that might exclude the user is actually  
> looking for.
> Perhaps a filtered list of points of interest is a good alternative  
> after all, hmm.

Filtered matters. Most people have a sense of whether something in a given
direction is closer than some other thing in that direction, or further

My initial suggestion would be to look at the polygon, and then go around
it (e.g. clockwise from north) finding the points of Interest closest to
the edge. Unless this is high-precision - and since you are not doing
rocket science for travel of actual rockets, it probably cannot be -
something near the boundary is a useful guide. If you don't find anything
vaguely close, you might consider "the pub is well inside, the train
station is far outside" or something similar.

Allowing people to trace points of interest along a very broad ray, like
"2  minutes, the top pub, 9 minutes the dodgy pub, 14 minutes the bottom
pub, 15 minutes the train station, 27 minutes turnoff to woopwoopwest"
might also be useful.

Remember how people *use* maps and directions. They don't want every last  
detail, excpet very close to what they are looking for, but they look for  
landmarks or identifiable shapes of things - e.g. the dog-leg road, the  
big roundabout, the shoe shop, the train station, the terrible busker...

I'd be interested to hear what you actually *did*, and why.



Chaals is Charles McCathie Nevile
find more at http://yandex.com
Received on Tuesday, 23 January 2018 19:06:56 UTC

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