Can compass ornaments look at Feng Shui?

Of course. The typical method is yin-yang method, but because the compass can't be used, it can only estimate the direction, which is prone to deviation and rough, and it is also prone to serious problems, such as Longjin distribution. So we can look at some simple geomantic omen without a compass, such as celestial beheading, horn demon, gun demon and so on, which have nothing to do with orientation.