[postgis-users] Is there any function for calculating angle between 2 line segments in 3D?

[Paul Ramsey]

Nothing built it. Fire up your plpgsql chops and calculate the
arccos() of the dot product of your segment of interest.

On Sun, Feb 27, 2022 at 2:39 AM Shaozhong SHI <shishaozhong at gmail.com> wrote:
>
> Regards,
>
> David
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