There are three kinds of compasses, namely ternary compasses, ternary compasses and comprehensive compasses. Those who study metaphysics and geomantic omen should choose ternary compass and comprehensive compass as the top priority. There must be a 360-degree scale around the compass, and there are two fixed cross longitude and latitude lines around it. The copper disk in the compass can rotate. Compass is used for orientation, so it has certain accuracy in its specification requirements. Therefore, we must pay attention to the following points when purchasing. (1) There must be a cross-red longitude and latitude line on the compass, and the copper disk in the compass can rotate, so pay attention to the feeling when rotating. Check whether the scale around the compass has a 360-degree scale, and bring a level. (2) The longitude and latitude lines of the Red Cross must coincide with the scales of 0 degree, 90 degree, 180 degree and 270 degree on the compass, otherwise it is not available. (3) When rotating, the magnetic needle of the top disk (with one circle at the end) must closely coincide with the right ascension of the chassis (with two circles), otherwise it will not be available. (4) When the compass rotates, pay attention to whether it will shake up and down. You can try it by pressing it with your hand. Don't be too flexible or too difficult when rotating, just feel a little resistance! (5) See if the scale on the compass surface is clear, especially on the 360-degree and 24-mountain floors. It's better to have one hundred and twenty points. Although 120 minutes is a triad, it can be used to distinguish the next hexagram from the next hexagram. (6) Compasses are also different in size. Usually use an eight-inch compass, so you can see clearly when you are oriented! The compass is too small to make mistakes. Masters are engaged in fortune telling, physiognomy, fortune telling, geomantic omen, etc. With years of experience, Master has helped tens of thousands of people change their destiny. If everything goes wrong now, you want to improve the situation as soon as possible. Koukou master \ Wei /:3996 194 is very good, and can predict many events for free! !
The polar gauge divides the floor plan of the tested building into eight palaces and twenty-four mountains, and then judges the advantages and disadvantages of each palace according to the knowledge of Qi management and Luan Tou, and makes the overall layout. The function of the geodesic gauge is to accurately divide the building into eight palaces and twenty-four mountains for judgment and adjustment! Therefore, polar gauge is also an indispensable tool. The polar gauge is a transparent plastic plate with a certain hardness, which is printed with 24 mountains and 360 degrees. The specific application is to find the center point on the floor plan of the room according to the method of mathematical geometry, and then draw a straight line perpendicular to the building door on the center point, which is a line perpendicular to the door when oriented, with one end sitting and the other end pointing. Generally, a line facing in a building is perpendicular to the door of the building, so it is easy to identify. However, polar compasses are not sold in China. The tool that can replace the polar compass is the protractor used in mathematics. The specific use method is to put two protractors into a circle, and then divide the protractors into twenty-four mountains according to the degrees corresponding to the boundaries of each mountain on the compass. Of course, each protractor is only 180 degrees, so two protractors must distinguish one of them, which can be distinguished by color. Although it is troublesome to use, it can still be used.