Hey, you can do it using plpython and python gdal binding. It could be a first step to evaluate if it is fast enough for you. Cheers, Rémi-c
2014-08-22 22:09 GMT+02:00 Rasmus Aveskogh <[email protected]>: > Hi! > > How hard/feasible would it be to implement elevation profile/drape line > functionality in PostGIS? Since PostGIS already depends on GDAL I assume > making use of the GDAL API would make this quite easy, such as in the > Zoo-Project service: > > > http://www.zoo-project.org/trac/browser/trunk/zoo-project/zoo-services/gdal/profile/service.c > > Providing functionality that could eventually be used for applications > like: http://www.zoo-project.org/site/ZooWebSite/Demo/GdalProfile (using > the code above) > > I’m currently using an ad-hoc PostGIS-function to pull out elevation > profiles from my rasters, but it’s quite slow and CPU intensive and as such > does not make a good fit as a backend service for a web application like > the above. > > -ra > > _______________________________________________ > postgis-users mailing list > [email protected] > http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users >
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