[postgis-users] Any function to compute line trend and identify segment running in flat areas

Shaozhong SHI shishaozhong at gmail.com
Mon Jan 10 16:07:08 PST 2022

A line may run steeply downslope and then over flat areas.

Any generic function to determine so?

Input:  geometry and relative overall gradient

Output: the segment running steeply, the segment running in flat area

Any recommendations and suggestions?


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