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

[Greg Troxel]

Jason Remillard <remillard.jason at gmail.com> writes:

> Hi,
>
> I would like to start a new thread to talk about merging building data.
>
> My town Groton has mostly hand drawn buildings from bing. Like was
> suggested previously, dumping them all and replacing them with the MassGIS
> buildings would be a definite improvement of the map quality. My suggestion
> is to provide quick instructions on the wiki on how to use the JOSM
> conflation plugin combined with the complete MassGIS building data set
> should be enough to handle places like Groton.

That makes sense.  I am afraid that I think this process should be
manual.

From the scripts, it would be nice to produce a partition of the massgis
data as:

  buildings_not_in_osm
  buildings_overlapping_buildings_in_osm

the second can be used for 'replace geometry' or the conflation plugin,
with manual imagery checking (or at the discretion of the one who added
them).

Later, as things change, one could rerun the massgis data (or an update)
and produce

  buildings_matching_osm (to be ignored)
  buildings_not_in_osm
  buildings_overlapping_buildings_in_osm

and the 3rd set is again where we haven't updated or think our data is
better.  I would say this whole process can wait until the dust settles
on the import of non-overlapping data.

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