[gdal-dev] Public XYM or XYZM datasets?

[Ari Jolma]

The Finnish national road data was my motivation to add M to OGR.

You can download it from

https://extranet.liikennevirasto.fi/extranet/web/public/latauspalvelu

The page is also in English (click EN on top left)

The "R" data is the one you want.

The meta data etc is probably in Finnish only so you may need to 
experiment. M values are used to encode point-like attribute data into 
the line strings.

Good luck,

Ari


26.08.2016, 01:43, Carl Godkin kirjoitti:
> Hi,
>
> While I had read about XYM and XYZM on the mailing list a few months 
> ago, I had no experience with those geometry types until today when I 
> happened to stumble on
>
> http://www-static.bouldercolorado.gov/docs/opendata/OSMPTrails.zip
>
> which contains a shapefile of trails around Boulder, Colorado that has
>     Geometry: Measured Line String
> in GDAL 2.1's ogrinfo.
>
> I would like to find some other datasets with XYM (and/or XYZM) 
> geometry for testing.
>
> I didn't see any associated with the RFC or tickets associated with it.
>
> Can anyone point me to any others?  Thanks very much,
>
> carl
>
>
>
>
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