[Imports] [Talk-us] MassGIS Building Import Start

[Josh Doe]

On Thu, Dec 13, 2012 at 10:58 AM, Jason Remillard <remillard.jason at gmail.com
> wrote:

> Hi,
>
> On second thought, we will ask everybody that wants to help to use their
> own import account. Besides the simplifications, and the re-projection
> verification does anybody have any other issues?
>

Can we get some stats, as to how many structures there are, and the number
of nodes, before and after any simplification procedure is run. Obviously
the number actually imported will be less, since I'm assuming there are a
few structures already mapped in OSM. :)

>From reading the MassGIS page for this dataset, they are using the
roofprint of buildings, while the OSM wiki says the footprint should be
used (e.g. don't include a large awning as part of the structure). Now
personally most of what I map uses the roofprint, unless I can easily
discern the footprint. I don't see a problem with importing the MassGIS
data as is, but what should importing users do if a building already
exists, but one uses footprint and the other the roofprint?

Adding to this point, I think there needs to be guidance for importing
users. Perhaps before "launching" this import, you and one or two others
can import a few hundred or thousand buildings write up lessons learned,
suggestions, best practices, whatever you want to call it. Both in terms of
making judgment calls and in terms of the most efficient method in a given
tool. For example, if there is only one POI node in the middle of a
building, and you can be reasonably sure they refer to the same place,
merge the node info to the way (or not, but if you do be sure to use
Replace Geometry command in JOSM which I improved for just this purpose).
This guide would obviously be useful to more than just the MassGIS import,
but any building import. Perhaps this already exists?

-Josh
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