vector_difference()

static void vector_difference ( const POINT3D *  a, const POINT3D *  b, POINT3D *  n  )

static

Calculate the difference of two vectors.

Definition at line 476 of file lwgeodetic.c.

{
        n->x = a->x - b->x;
        n->y = a->y - b->y;
        n->z = a->z - b->z;
        return;
}

References POINT3D::x, POINT3D::y, and POINT3D::z.

Referenced by edge_distance_to_point(), point_in_cone(), and unit_normal().

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