[gdal-dev] VRT and M-dimension - any example?
even.rouault at spatialys.com
Tue May 10 05:43:16 PDT 2016
Le mardi 10 mai 2016 14:38:01, Jukka Rahkonen a écrit :
> Release notes https://trac.osgeo.org/gdal/wiki/Release/2.1.0-News announce
> that RFC 61: Support for measured geometries is implemented in VRT.
> However, this is not mentioned in http://www.gdal.org/drv_vrt.html. I
> would like to improve the documentation but before I can do that I need to
> understand how it works. Could somebody help a bit with making a valid VRT
> - CSV source
> - GeometryType>wkbPointZM</GeometryType>
> - GeometryField encoding="PointFromColumns"
> Or are the PointFromColumn attributes simply x="x" y="y" z="z" m="m" ?
Ah good point, PointFromColumn has not been extended to support the m
attribute. The support for M / ZM is just in passthrough mode :
1,"POINT ZM (1 2 3 4)"
> -Jukka Rahkonen-
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