As an architect I spend a lot of time using mapping 'beyond zoom 18'
and have contributed a lot of stealth taxes to the British government
paying through the nose for Ordnance Survey site plans (another
debate altogether). Accurate data for building footprints (we'd best
keep out of people's living rooms to avoid privacy issues) would be
great but is beyond the capabilities of the techniques generally used
by OSM mappers - hobby GPS devices and tracing from Yahoo imagery.
Either a professional surveying-quality GPS rig would be needed,
giving centimetre accuracy, or the data would have to be imported
from CAD, with some method of accurately relating this to OSM's
coordinate system. Bigger servers might be needed too :-)
From: Frederik Ramm <[EMAIL PROTECTED]>
Date: 22 April 2008 00:44:59 BDT
To: Sfan00 <[EMAIL PROTECTED]>
Cc: [email protected]
Subject: Re: [OSM-talk] Beyond Zoom 18 - (Some scratchspacing ideas
concerning siteplans)
Hi,
What exists are the start of some example floorplans for :
* A supermarket
* A Cinema seating arrangment
* A simple house...
I would welcome some thoughts on what to expand...
Micromapping is surely an interesting area that we'll have to spend
some thought on; if and how we want it in our data, how this can work
with generalisation (zooming out) and so on.
However I have a feeling that our current approach of mapping "what's
there" will fail miserably when we try to create schematics of the
insides of railway stations or cinemas. Such floor plans are usually
not even remotely drawn to scale, often for good reasons. But our way
of doing things does not leave room for *not* drawing something to
scale. So maybe we just end up with links to some other system
("OpenFloorPlans")...?
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