align-toparrow-leftarrow-rightbackbellblockcalendarcamerachatcheckchevron-downchevron-leftchevron-rightchevron-small-downchevron-small-leftchevron-small-rightchevron-small-upchevron-upcircle-with-crosscrosseditfacebookglobegoogleimagesinstagramlocation-pinmagnifying-glassmailmoremuplabelShape 3 + Rectangle 1outlookpersonplusImported LayersImported LayersImported Layersshieldstartwitteryahoo

Re: [osm-nyc] question about drawing building footprints

From: Maxim R.
Sent on: Wednesday, July 31, 2013 10:18 PM
Frank, one very important tip when drawing buildings is to make sure you align them to baseline, not their rooftops. This will ensure that polygons are positioned where they supposed to be rather than skewed if imagery was taken at an angle. With single-story building it's not as noticeable, but with taller buildings margin of error will increase.


On Wed, Jul 31, 2013 at 8:19 PM, fkh <[address removed]> wrote:
Hello NYCOSMers!

I'm starting to add building footprints for my neighborhood in Brooklyn, and until the city's own footprint data is licensed more favorably (soon, I hear), I'm going to add them manually from the aerial image. 

Has anyone come across a good tutorial about drawing buildings? 

I see there are some tools in JOSM that will be useful (e.g. http://osmtampabay.org/blog/fast-building-footprints-in-josm/), but I'd rather use the ID map editor. Before I dive in, any tips?

Frank

--
Frank Hebbert
OpenPlans | http://openplans.org | [masked] | @fkh




--
Please Note: If you hit "REPLY", your message will be sent to everyone on this mailing list ([address removed])
This message was sent by fkh ([address removed]) from OpenStreetMap NYC.
To learn more about fkh, visit his/her member profile
Set my mailing list to email me As they are sent | In one daily email | Don't send me mailing list messages

Meetup, POB 4668 #37895 NY NY USA 10163 | [address removed]

People in this
Meetup are also in:

Sign up

Meetup members, Log in

By clicking "Sign up" or "Sign up using Facebook", you confirm that you accept our Terms of Service & Privacy Policy