[postgis-devel] ST_GeometrySplit

[Chris Hodgson]

Isn't this the same as st_difference(A,B), when given any of those pairs 
of arguments? Wrap it in an st_dump() if you want to separate the 
individual results?

Chris

strk wrote:
> Brain picking you guys about a ST_GeometrySplit.
>
> The cases of interest seem to be:
>  - Split polygon by line
>  - Split line by line
>  - Split line by point
>
> Initial questions:
>  - Should we allow multi-segment "blade" lines ?
>    (where a single polygon or line might be cut in multiple pieces)
>  - Should we allow multi-component inputs ?
>    (where the "blade" might cut a single component)
>
> Both questions are related to the kind of returned output,
> that is: should output be always composed by 2 parts or
> possibly multiple parts ?
>
> Comments welcome.
>
> --strk;
>
>   ()   Free GIS & Flash consultant/developer
>   /\   http://strk.keybit.net/services.html
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