GPS does not have the function of the northern needle, and it does not know the direction when it is still. But once it moves, it can know its movement direction. GPS updates the current location information every one second. Each point of coordinates compares with the previous coordinates, you can know the direction of advance. Please note that this is not the direction of the GPS head finger. How many degrees the sports route is. The algorithms of different GPSs about the direction are different, and basically the direction of the recent several seconds, so unless you have gone for a while and are still straight, the direction of the forward is inaccurate, especially when you turn around Seeing the value is constantly changing. How many degrees are displayed in the direction? This degree is the watch dial facing up, pointing to the north at 12 o'clock, and clockwise to the angle of clockwise. There are many GPS that can also display this angle by pointing to the compass and ruler. Generally, the average speed is also displayed, which is also calculated based on the recent displacement and time.

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