[postgis-users] "Resampling" polyline shapefiles.

[Brian Modra]

2009/12/25 Hemant Bist <hemantbist at gmail.com>:
> I have a polyline shapefile with each polyline having 200 segements with
> each segments length roughly 1 meter. I want to "resample" the polylines to
> have roughly 10 meter segment size and each polyline having roughly 20
> segments. I understand this may result in some loss of information.
>
>
> Can postgis help me with some  conversion like this. I need this done
> somewhat quickly. I have looked at the documentation but did not find
> anything relevant.
> I have installed postgis on ubuntu and ran some queries. That's my level of
> familiarity with postgis.
> Would appreciate any pointers.

http://postgis.refractions.net/docs/ST_Simplify.html
http://postgis.refractions.net/docs/ST_SimplifyPreserveTopology.html
http://bostongis.org/PrinterFriendly.aspx?content_name=postgis_simplify
http://old.nabble.com/simplify-a-linestring-to-n-points-td20632406.html

>
> Best,
> HB
>
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