Topic: Calculate the internal angles of a polygon

[FELIX]

Calculate the internal angles of a polygon (polyline) irregular closed every three points.

Note: Not always the internal angle is less than 180 degrees

ok.

[Lee Mac]

https://www.theswamp.org/index.php?topic=36124

[roy_043]

Technically a polyline cannot be closed every three points. So probably you mean a shape where e.g. vertex 0, 3, 6 etc. are in the same location. If that is so, where are the internal angles? Can the polyline be self-crossing?

[Lee Mac]

Technically a polyline cannot be closed every three points. So probably you mean a shape where e.g. vertex 0, 3, 6 etc. are in the same location. If that is so, where are the internal angles? Can the polyline be self-crossing?

I understood the request as: 'calculate the interior angle between every three points for a closed polygon', but I could be wrong 

[roy_043]

Your interpretation may well be correct Lee. Reading the OP my mind immediately produced the image of a flower shape with triangular 'petals'.

[FELIX]

Three points would function arguments.
Ok Lee MAC already modified the function to pass a list of points as an argument.
Thank you so much to everyone.
OK.