[postgis-devel] ST_Angle(P1, P2, P3, P4), clockwise or counterclockwise ?

Rémi Cura remi.cura at gmail.com
Thu Feb 25 07:43:54 PST 2016

Hey dear list,

here is a proposal for a new functiono ST_Angle

Discussing this with @dbaston, it occured that maybe you would prefer to
have the angle counterclockwise (more a math rule) rather than
clockwise(more a GIS rule).

I choose clockwise because T_Azimuth already use clockwise.

It's an easy change, so please tell me what's the best.

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