test_edge_distance_to_edge()

static void test_edge_distance_to_edge ( void  )

static

Definition at line 767 of file cu_geodetic.c.

References edge_distance_to_edge(), edge_set(), GEOGRAPHIC_EDGE::end, GEOGRAPHIC_POINT::lat, GEOGRAPHIC_POINT::lon, and GEOGRAPHIC_EDGE::start.

Referenced by geodetic_suite_setup().

{
        GEOGRAPHIC_EDGE e1, e2;
        GEOGRAPHIC_POINT c1, c2;
        double d;

        /* closest point at origin, one degree away */
        edge_set(-50.0, 0.0, 50.0, 0.0, &e1);
        edge_set(-5.0, 20.0, 0.0, 1.0, &e2);
        d = edge_distance_to_edge(&e1, &e2, &c1, &c2);
#if 0
        printf("LINESTRING(%.8g %.8g, %.8g %.8g)\n", e1.start.lon,  e1.start.lat, e1.end.lon,  e1.end.lat);
        printf("LINESTRING(%.8g %.8g, %.8g %.8g)\n", e2.start.lon,  e2.start.lat, e2.end.lon,  e2.end.lat);
        printf("\nDISTANCE == %.8g\n", d);
#endif
        CU_ASSERT_DOUBLE_EQUAL(d, M_PI / 180.0, 0.00001);
        CU_ASSERT_DOUBLE_EQUAL(c1.lat, 0.0, 0.00001);
        CU_ASSERT_DOUBLE_EQUAL(c2.lat, M_PI / 180.0, 0.00001);
        CU_ASSERT_DOUBLE_EQUAL(c1.lon, 0.0, 0.00001);
        CU_ASSERT_DOUBLE_EQUAL(c2.lon, 0.0, 0.00001);
}

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