[postgis-users] A table of DE-9IE patterns and types of topological relations

Paul Ramsey pramsey at cleverelephant.ca
Thu Apr 14 16:36:54 PDT 2022


> On Apr 14, 2022, at 4:35 PM, Shaozhong SHI <shishaozhong at gmail.com> wrote:
> The use of ST_Relate appears very attractive.  However, there appears not yet a table detailing DE_9IE patterns and types of topological relations.
> There also appears that not much literature on the use of it for data quality assurance or things like deriving quality data from raw data.
> Can anyone enlighten me?
> Regards,
> David
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