[postgis-users] Intersecting lines to Polygons

[Nicolas Ribot]

Hi,

Look at st_polygonize() and st_buildArea()

Topology can also be of a great help here.

Nicolas


On 11 March 2013 13:13, chlists <chlists at me.com> wrote:

> Hi list,
>
> I'd like to combine a global compilation of line data which intersect into
> a global polygon dataset. ArcGIS has a tool called 'Features to Polygons'
> which does this in one step for which I have yet to find an equivalent in
> PostGIS. ST_MakePolygon and ST_Polygon require closed linestrings. I have
> simple line features which randomly connect like in the attached
> screenshot. There are no attributes which describe which polygon a single
> linestring belongs to. Can this be done easily or does this involve
> building topologies? Any pointers much appreciated.
>
> Thanks,
> Chris
>
>
>
>
>
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