Feng Shui Compass Software.

The compass (compass) has a circumference of 360°, with 0° due north and 180° due south. When measuring the Feng Shui of a Yangzhai, you should use a compass to measure the center line of the entry door on the compass at the center point of the house. Note that the compass needle in the center of the compass must first coincide with the north-south scale line, and avoid approaching the metal steel of the building to prevent magnetic deviation from causing inaccurate directions.