test_ptarray_closest_point_on_segment()

static void test_ptarray_closest_point_on_segment ( void  )

static

Definition at line 735 of file cu_ptarray.c.

{
        POINT4D s0, s1, qp, cp;
 
        s0.x = s0.y = 0; s0.z = 10; s0.m = 20;
        s1.x = 0; s1.y = 10; s1.z = 0; s1.m = 10;
 
        /* Closest is bottom point */
 
        qp.x = -0.1; qp.y = 0;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 0);
        ASSERT_DOUBLE_EQUAL(cp.z, 10);
        ASSERT_DOUBLE_EQUAL(cp.m, 20);
 
        qp.x = 0.1; qp.y = 0;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 0);
        ASSERT_DOUBLE_EQUAL(cp.z, 10);
        ASSERT_DOUBLE_EQUAL(cp.m, 20);
 
        qp.x = 0; qp.y = -0.1;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 0);
        ASSERT_DOUBLE_EQUAL(cp.z, 10);
        ASSERT_DOUBLE_EQUAL(cp.m, 20);
 
        /* Closest is top point */
 
        qp.x = 0; qp.y = 10.1;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 10);
        ASSERT_DOUBLE_EQUAL(cp.z, 0);
        ASSERT_DOUBLE_EQUAL(cp.m, 10);
 
        qp.x = 0.1; qp.y = 10;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 10);
        ASSERT_DOUBLE_EQUAL(cp.z, 0);
        ASSERT_DOUBLE_EQUAL(cp.m, 10);
 
        qp.x = -0.1; qp.y = 10;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 10);
        ASSERT_DOUBLE_EQUAL(cp.z, 0);
        ASSERT_DOUBLE_EQUAL(cp.m, 10);
 
        /* Closest is mid point */
 
        qp.x = 0.1; qp.y = 5;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 5);
        ASSERT_DOUBLE_EQUAL(cp.z, 5);
        ASSERT_DOUBLE_EQUAL(cp.m, 15);
 
        qp.x = -0.1; qp.y = 5;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 5);
        ASSERT_DOUBLE_EQUAL(cp.z, 5);
        ASSERT_DOUBLE_EQUAL(cp.m, 15);
 
        qp.x = 0.1; qp.y = 2;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 2);
        ASSERT_DOUBLE_EQUAL(cp.z, 8);
        ASSERT_DOUBLE_EQUAL(cp.m, 18);
 
        qp.x = -0.1; qp.y = 2;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 2);
        ASSERT_DOUBLE_EQUAL(cp.z, 8);
        ASSERT_DOUBLE_EQUAL(cp.m, 18);
 
        qp.x = 0.1; qp.y = 8;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 8);
        ASSERT_DOUBLE_EQUAL_TOLERANCE(cp.z, 2, 1e-5);
        ASSERT_DOUBLE_EQUAL(cp.m, 12);
 
        qp.x = -0.1; qp.y = 8;
        closest_point_on_segment(&qp, &s0, &s1, &cp);
        ASSERT_DOUBLE_EQUAL(cp.x, 0);
        ASSERT_DOUBLE_EQUAL(cp.y, 8);
        ASSERT_DOUBLE_EQUAL_TOLERANCE(cp.z, 2, 1e-5);
        ASSERT_DOUBLE_EQUAL(cp.m, 12);
 
 
}

References ASSERT_DOUBLE_EQUAL, ASSERT_DOUBLE_EQUAL_TOLERANCE, closest_point_on_segment(), POINT4D::m, POINT4D::x, POINT4D::y, and POINT4D::z.

Referenced by ptarray_suite_setup().

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