[postgis-tickets] [SCM] PostGIS branch main updated. 3.1.0rc1-284-gcde6f3d

[Sandro Santilli]

On Wed, Jul 07, 2021 at 02:46:58PM -0700, git at osgeo.org wrote:
>
> commit a2e00cbcd86a519e73485233c2ffa84983ee9905
> Author: Paul Ramsey <pramsey at cleverelephant.ca>
> Date:   Wed Jul 7 14:46:02 2021 -0700
> 
>     Add example pictures of the structure make valid method and rework text formatting a litte
> 
> +        <para>"structure" is an algorithm that distinguishes between
>          interior and exterior rings, building new geometry by unioning
> -        exterior rings, and then differencing all interior rings.

It would be useful to document *how* the algorithm distinguishes
between interior and exterior rings.

--strk;