triangle_signed_area¶

triangle_signed_area(triangle)[source]¶

Determine the signed area of a triangle.

Parameters:

triangle (ArrayLike) – A 3x2 list of coordinates.

Returns:

The signed area of the triangle. It will be negative if the triangle has a clockwise winding, negative if the triangle has a counter-clockwise winding, and zero if the triangles points are collinear.

Return type:

int