[postgis-users] Split linestring into two line

[Nicolas Ribot]

If you want 2 separate, parallel lines, from one input line,
st_offsetCurve may help:
http://postgis.net/docs/manual-2.0/ST_OffsetCurve.html

Nicolas

On 8 August 2013 09:55, Hugues François <hugues.francois at irstea.fr> wrote:
> Hello,
>
> It is hard to give you an answer if we don't know what exactly you are
> looking for and how you want to proceed (i.e. especially what are your input
> data)
> => if you want to extract specific substrings from your original ones, the
> answer of Nicola seems to be the good one
> => if you want to cut your linestring given another geometry, st_split may
> help you but we canno't tell you it will be the result you are looking for
> since we don't have more information about your data.
>
> Did you make some tests with these functions on a sample of your data ?
>
> Hugues.
>
> ________________________________
> From: postgis-users-bounces at lists.osgeo.org
> [mailto:postgis-users-bounces at lists.osgeo.org] On Behalf Of Saurav Ranjit
> Sent: Thursday, August 08, 2013 9:48 AM
> To: postgis-users at lists.osgeo.org
> Subject: [postgis-users] Split linestring into two line
>
> hi
> i am new to the postgis. i would like to know if there is a way to split the
> linestring into two. what i am trying to get is: i have a map with single
> line, now i want to show that single line into two separate line parallel to
> each other.
>
> Line string looks like this.
> "LINESTRING(120.5523267 13.7257305,120.5522595 13.7265231,120.552205
> 13.7270875)"
>
> can ST_split function be used for this purpose? Is yes how it is done?
>
> Thanks in advance
>
> Regards
> Saurav Ranjit
>
>
> _______________________________________________
> postgis-users mailing list
> postgis-users at lists.osgeo.org
> http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users
>