[Talk-GB] newbie questions about building outlines

[Graham Jones]

If vector map district outlines are good enough for your application you
could use it to render maps without importing it into osm - just merge the
osm and vector map district data when you render it into images.

Graham

Hartlepool, UK (from my phone)
On 29 Apr 2014 15:42, "Brian Norman" <brian at earthware.co.uk> wrote:

>  Hi Everyone
>
>
>
> As a newbie contributor I was hoping to get some advice and wisdom before
> making a mess of things ;-). At the moment I am working on a commercial
> project that needs to show building outlines for inner London. I have done
> some simple analysis to try and identify the gaps in the London coverage
> and am looking at possible options for filling in the gaps. This is where I
> have a few questions:
>
>
>
> 1)      Does anyone know if there has been a deliberate reason to not
> fill in the gaps with the generalized buildings from OS vectormap district?
> I can think of many reasons this might have been decided by the community
> but noticed that this has been done in other UK cities
>
>  2)      We are working with our client to investigate the costs of
> adding the missing buildings to OSM by tracing the Bing imagery. My
> analysis shows there are at least 100,156 buildings present in the OS
> vector district data that don't overlap a building in the OSM data within
> the area we are considering but this is a very low estimate. Does anyone
> have any rough guide for a per building time to estimate the effort
> involved?
>
>  3)      Is anyone aware of an company that are experienced in creating
> large volumes of OSM data from tracing aerial imagery?
>
>  4)      Does anyone have any other recommended approaches?
>
>
>
> Thanks for any responses and please forgive my general ignorance
>
>
>
> Thanks
>
> Brian
>
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