test_lw_segment_side()

static void test_lw_segment_side ( void  )

static

Definition at line 61 of file cu_algorithm.c.

References lw_segment_side(), POINT2D::x, and POINT2D::y.

Referenced by algorithms_suite_setup().

{
        int rv = 0;
        POINT2D p1, p2, q;

        /* Vertical line at x=0 */
        p1.x = 0.0;
        p1.y = 0.0;
        p2.x = 0.0;
        p2.y = 1.0;

        /* On the left */
        q.x = -2.0;
        q.y = 1.5;
        rv = lw_segment_side(&p1, &p2, &q);
        //printf("left %g\n",rv);
        CU_ASSERT(rv < 0);

        /* On the right */
        q.x = 2.0;
        rv = lw_segment_side(&p1, &p2, &q);
        //printf("right %g\n",rv);
        CU_ASSERT(rv > 0);

        /* On the line */
        q.x = 0.0;
        rv = lw_segment_side(&p1, &p2, &q);
        //printf("on line %g\n",rv);
        CU_ASSERT_EQUAL(rv, 0);

}

Here is the call graph for this function:

Here is the caller graph for this function: