/**
* graphene_euler_reorder:
* @e: a #graphene_euler_t
* @order: the new order
* @res: (out caller-allocates): return location for the reordered
* #graphene_euler_t
*
* Reorders a #graphene_euler_t using @order.
*
* This function is equivalent to creating a #graphene_quaternion_t from the
* given #graphene_euler_t, and then converting the quaternion into another
* #graphene_euler_t.
*
* Since: 1.2
*/
void
graphene_euler_reorder (const graphene_euler_t *e,
graphene_euler_order_t order,
graphene_euler_t *res)
{
graphene_quaternion_t q;
graphene_quaternion_init_from_euler (&q, e);
graphene_euler_init_from_quaternion (res, &q, order);
}
GRAPHENE_TEST_UNIT_END
GRAPHENE_TEST_UNIT_BEGIN (euler_quaternion_roundtrip)
{
graphene_euler_t values[3];
unsigned int i;
graphene_euler_init_with_order (&values[0], 0.f, 0.f, 0.f, GRAPHENE_EULER_ORDER_XYZ);
graphene_euler_init_with_order (&values[1], 1.f, 0.f, 0.f, GRAPHENE_EULER_ORDER_XYZ);
graphene_euler_init_with_order (&values[2], 0.f, 1.f, 0.f, GRAPHENE_EULER_ORDER_ZYX);
for (i = 0; i < G_N_ELEMENTS (values); i++)
{
graphene_quaternion_t q, check;
graphene_euler_t e;
graphene_quaternion_init_from_euler (&q, &values[i]);
graphene_euler_init_from_quaternion (&e, &q, graphene_euler_get_order (&values[i]));
graphene_quaternion_init_from_euler (&check, &e);
g_assert_true (graphene_quaternion_equal (&q, &check));
}
}