[postgis-users] interpolate and extract points from line

Nicolas Ribot nicolas.ribot at gmail.com
Sun Apr 8 08:38:13 PDT 2012

Glad to read it helped you, Gery.

Yes indeed, Postgis is an amazing tool to process data.
The new 2.0 release is really powerfull, thanks to the team !


On 8 April 2012 16:32, Gery <gamejihou at hotmail.com> wrote:
> Thank you very much! just to thank you Nicolas because it did work! your last
> code really did the trick, here I attached an image of the interpolated
> points over the smoothed tracks.
> http://postgis.17.n6.nabble.com/file/n4708512/Screenshot.png
> Thanks also for the explanation, I didn't know that segmentize also takes
> the number of points already in the line, good to know. That's true about
> the distance, but these tracks are short ones, the largest one is about 300
> meters I think, so no problem. I know that trick, I think you explained me
> that some emails ago =D
> Thanks dude again, you're very nice, and just to point out, PostGis is
> really impressive, I was officially impressed before when I was trying to
> convert points to lines based on same name of tracks, in arcgis that took me
> several hours in order to complete a series of tracks, like 5 o 6 hrs I
> think, and with PG it was amazingly fast, and I also compared now this
> process with arcgis and doing this manually in arcgis is painful (and also
> gave me more points than I calculated, why? no idea), PG is more precise and
> definitely rocks, my special thanks and respect to the PostGis Team,
> fantastic job!
> Cheers,
> --
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