Returns the signed area of the triangle (a, b, c). The result is positive when the vertices wind counter-clockwise, negative when they wind clockwise, and zero when the three points are collinear.
the first vertex of the triangle.
the second vertex of the triangle.
the third vertex of the triangle.
the signed area.
Returns the signed area of the triangle (a, b, c). The result is positive when the vertices wind counter-clockwise, negative when they wind clockwise, and zero when the three points are collinear.