China Naming Network - Almanac query - How to determine the geomantic orientation of residence?

How to determine the geomantic orientation of residence?

Now every unit in urban architecture is based on:

(1) Take the sun as the direction and the side with the most light in the house as the direction.

(2) Take action as the direction. If there is only one street in front of a building, take this street as the direction; If the building is surrounded by streets or the building is square, take the sun as the direction.

(3) Take shape as the direction. If the building is built on a mountain, or the terrain fluctuates greatly, take the lower as the direction.