determineSide()

static double determineSide ( const POINT2D *  seg1, const POINT2D *  seg2, const POINT2D *  point  )

static

Definition at line 658 of file lwgeom_functions_analytic.c.

References POINT2D::x, and POINT2D::y.

Referenced by point_in_ring(), and point_in_ring_rtree().

{
        return ((seg2->x-seg1->x)*(point->y-seg1->y)-(point->x-seg1->x)*(seg2->y-seg1->y));
}

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