On 18/01/11 11:02, Chris Saunter wrote:
I have an iOS app that renders vector map data on the fly, to allow
configurable rendering with selectable views (contours, waterways
etc). Streaming data to the app is a bit of a problem, so it runs
from an offline binary cache that is pre-optimised for fast rendering.
I can imagine a similar approach for OSM as a whole, where there is a
vector data server that provides data pre-optimised for configurable,
on the fly rendering. This could then be used in a variety of ways
such as:
1) Custom viewer applications, mobile or desktop - with local cacheing
of vector data this is blindingly fast
2) Browser based viewer using javascript - this could be a hybrid
bitmap/vector renderer that annotates bitmap tiles
The key thing is to make a vector viewing tool, not a full-blown GIS
tool - so an emphasis on redraw speed and ease of use over raw power.
You've just imagined our first product, which is a javascript vector map
viewing tool. We'll be launching it in a few weeks and OSM data is one
of the data options (we have a highly optimised internal format rather
than taking data directly from OSM). However it will not be free.
We're an un-funded (as yet) startup, so we can't afford to give stuff
away at this point - but if someone had a way of paying for our server
costs we'd be very happy to host these kinds of specialised views of OSM
data.
Jonathan.
--
Jonathan Harley : Managing Director : SpiffyMap Ltd
Email: m...@spiffymap.com Phone: 0845 313 8457 www.spiffymap.com
Post: The Venture Centre, Sir William Lyons Road, Coventry CV4 7EZ
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