[talk-au] PSMA Administrative Boundaries

[Andrew Harvey]

On Sat, 6 Oct 2018 at 15:57, Joel H. <joelh at disroot.org> wrote:
>
> OK everyone I am currently editing the LGA shapefiles for QLD so no one should attempt as to not create conflicts (although I'm not currently working on the suburbs file).

Don't worry, no one should actually be doing any importing until we
get community consensus and a plan in place.

> The PSMA data isn't good IMO. And requires a lot of fixing to be imported, lots of problems with overlapping ways.

Do you have examples of the overlapping ways? It looks pretty okay
around Brisbane to me. Here's an a mesh of the LGA's in GeoJSON which
you can import into JOSM with enough memory.
https://tianjara.net/data/LGA_mesh.geojson.xz

> But the biggest problem is that the names are all caps! Does anyone know a way to automatically convert all of these properly so that "BRISBANE" is "Brisbane"?

That's fairly easy to as a preprocessing step, eg with ogr2osm or via
other scripts.

I've been working on processing the PSMA data to make it easier to
import. Since I think we should reuse existing ways where possible, if
we did that it's a mostly manual process anyway. Even without reusing
existing way, to get relations you need shared ways on the borders.

One approach is to use https://github.com/andrewharvey/geojson-mesh to
get single ways for the border which we then manually join up into the
full relations in JOSM.

> On 6/10/18 12:07 pm, Joel H. wrote:
> My first though is to add a fixme notice (in similar fashion to the NSW import), that tells us to reconsider the place label node already in OSM, and to integrate it with the boundary data.

If there's an existing place node, then we should use that as the
label member of the relation.