[Talk-GB] newbie questions about building outlines

[Tom Hughes]

On 30/04/14 11:59, Dan S wrote:
> 2014-04-30 9:52 GMT+01:00 Ed Loach <edloach at gmail.com>:
>> Tom wrote:
>>
>>> In many other areas of inner London, particularly residential (e.g. http://binged.it/1iByiPy),
>>> the typologies and shapes are pretty easy to understand from aerial imagery so you
>>> can accurately guess individual buildings.
>>
>> Perhaps it is just me, but I don’t think residential buildings without addresses are worth adding to OSM, and you can’t get addresses without a survey (or spot the odd business that may be hidden amongst them).
>
> While building outlines are not particularly interesting in
> themselves, I've been surprised when doing address surveying that it
> makes a massive difference to the task: having outlines to work to
> (and occasionally, to fix) really speeds up my address surveying. So
> like others have said, I now try to get buildings sketched in from
> aerials beforehand.

I find the opposite myself. If somebody has already sketched outlines 
then I usually find it easier to delete them all and start again.

Apart from anything else they're often either not split up into separate 
units, or the split is wrong if the person hasn't actually been there 
and seen where the splits are.

Tom

-- 
Tom Hughes (tom at compton.nu)
http://compton.nu/