test_vector_rotate()

static void test_vector_rotate ( void  )

static

Definition at line 1496 of file cu_geodetic.c.

References vector_rotate(), POINT3D::x, and POINT3D::y.

Referenced by geodetic_suite_setup().

{
        POINT3D p1, p2, n;
        double angle;

        memset(&p1, 0, sizeof(POINT3D));
        memset(&p2, 0, sizeof(POINT3D));
        memset(&n, 0, sizeof(POINT3D));

        p1.x = 1.0;
        p2.y = 1.0;
        angle = M_PI_4;
        vector_rotate(&p1, &p2, angle, &n);
        //printf("%g %g %g\n\n", n.x, n.y, n.z);
        CU_ASSERT_DOUBLE_EQUAL(n.x, 0.707107, 0.00001);

        angle = 2*M_PI/400000000;
        vector_rotate(&p1, &p2, angle, &n);
        //printf("%.21g %.21g %.21g\n\n", n.x, n.y, n.z);
        CU_ASSERT_DOUBLE_EQUAL(n.x, 0.999999999999999888978, 0.0000000000000001);
        CU_ASSERT_DOUBLE_EQUAL(n.y, 1.57079632679489654446e-08, 0.0000000000000001);

        angle = 0;
        vector_rotate(&p1, &p2, angle, &n);
        //printf("%.16g %.16g %.16g\n\n", n.x, n.y, n.z);
        CU_ASSERT_DOUBLE_EQUAL(n.x, 1.0, 0.00000001);
}

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