Whether the Feng Shui drinking shape is based on the case mountain or the main mountain?

Is the Feng Shui drinking shape based on the case mountain or the main mountain? ——Drinking the shape and taking the image, that is, giving a name to the selected Feng Shui treasure place. It does not necessarily depend on the shape of the main mountain or the shape of the mountain, but the naming must reflect the most essential characteristics of the area and the main purpose of using the area. For example: water flows slowly, fertile water does not fall to outsiders, carpets are spread on the ground, three stars accompany the moon, tigers jump on bamboo slips, beauties show their shame, immortals look in the mirror, boatmen bow, thousands of families open fire, etc.