[Imports] San Francisco building heights import
bdon at bdon.org
Fri Dec 9 04:26:06 UTC 2016
Thanks everyone for your input - moving forward, we've continued to
recruit local mappers to ensure the long term success of the project.
These include some of the top contributors of buildings in the
area, outside of the MapBox data team. FInd an updated list on the
We have also created a validation tool to do side-by-side
cross-referencing of street imagery with 3D building heights. This
makes it easy and accessible for mappers to assess the quality of the
data against a second source. This can be generalized to review height
data elsewhere in OSM - email me if you're interested and I'd be happy
to help make it work in your local area.
On Thu, Dec 8, 2016 at 4:33 PM, Pavel Machek <pavel at ucw.cz> wrote:
> On Fri 2016-12-02 15:33:10, Chris Hill wrote:
>> On 02/12/16 11:19, James wrote:
>> >+1 Greg
>> >Frederik if you read the wiki, there are multiple examples proving +3m in
>> >one case(out of 283m so very low in overall %), but a couple cm in
>> >others(for big buildings). There is even an example to prove small
>> >buildings are accurate as well.
>> >It's cases like this that make me think some people are against improving
>> >the map faster, and do everything in an archaic way. Would you also
>> >question if someone went from building to building with a measuring tape,
>> >saying how do we know this person knows how to measure properly?
>> I think it is entirely reasonable for Frederik to ask these questions in the
>> polite, concise way that he does. Imports have a chequered history in OSM.
>> Local ownership seems to make a big difference.
> Actually I agree with James here. They are adding building
> heights. That does not add any maintainence burden, so it is right
> thing to do.
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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