It should be possible to post-process GEOS results to re-populate the M values if present. Linear interpolation could be used to estimate values at intra-segment points. We can put this on the list for future development.
On Mon, May 6, 2019 at 4:48 AM Darafei "Komяpa" Praliaskouski <m...@komzpa.net> wrote: > Hi, > > GEOS operations do not preserve M, but sometimes preserve Z. You can try > ST_SwapOrdinates(ST_Intersection(ST_SwapOrdinates(geom, 'zm'),...), 'zm'). > > On Thu, May 2, 2019 at 5:19 AM Bo Guo <bo....@gisticinc.com> wrote: > >> Hi there, >> >> I was trying to cut a portion of the LRS route with an area using >> ST_Intersection. However the resulting route no longer carries measure >> value. The behavior is the same for version 9.6 or the latest version >> 11. Anyone has any suggestions? >> >> Thanks! >> >> Bo >> _______________________________________________ >> postgis-users mailing list >> postgis-users@lists.osgeo.org >> https://lists.osgeo.org/mailman/listinfo/postgis-users > > > > -- > Darafei Praliaskouski > Support me: http://patreon.com/komzpa > _______________________________________________ > postgis-users mailing list > postgis-users@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/postgis-users
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