Direction and distance.
The method of determining the position is as follows:
The first method: orderly number pairs positioning, such as the number of seats in the cinema. Direction and distance, such as how far an angle is from a fixed object in the south of the east; Determination of longitude and latitude. If you want to find a point with symmetry axis, cross this straight line as the symmetrical point of this point.
The second method: using the sunny sun, according to the sunrise and sunset, we can easily know the east and the west, so we can judge the profile, but it can only be a rough estimate.
The third method: you can determine the orientation according to the house. Generally speaking, the balcony of a house faces south. You can find a residential area and determine the north and south. On the map, the orientation is marked according to "up north and down south, left west and right east". You can find a good reference object and then determine the position of the direction.
The fourth method: if you keep looking up, you will feel that you have been below; If you keep looking down, you will feel that you have been on it. If you always feel that you are behind, then you must have been looking forward; If you always feel forward, then you must have been looking back. The eyes determine the position, but the position is always different because of the eyes.