What is the relation between geomancy and city buildings

Geomantic learn from ancient times, which aimed at YangZhai part, often with nature environment together.Now most people gathered in the building of the cement in the big cities, and the natural landscape isolated, so, how to measure the "wind" and "water" of modern residential?

In fact, the ancients had divided the house into three categories, one is valley curtilage, one is the home of the wilderness, and well city curtilage.Can see it from the literal meaning, namely in the mountains of residential, plain and urban residential housing.Although the ancient city and modern city there's a big difference, but on the feng shui of meaning is the same.

Fengshui thought, "there are all inside and form at outside," what kind of appearance, also will have the corresponding function.So in his book YangZhai understanding sets have this description: "a street official layer a layer of water and a layer of a layer of sand wall house;Across the street in front of the hall, room space for mountain."