How to make Map location Arrow in html5

This article mainly shows you "how to make map positioning arrows in html5". The content is simple and clear. I hope it can help you solve your doubts. Let me lead you to study and learn this article "how to make map positioning arrows in html5".

Function point

Get the current location

Show the current device direction from time to time

Highlight

H6 every time it is opened, the direction of the device that is simply obtained cannot be correctly oriented. Because after each opening, the map itself is also affected by the orientation of the device.

So you need to get the direction of the compass for correction.

Take Mini Program acquisition device, compass direction, H6 rendering positioning arrow as an example

Related formulas:

/ / the direction of the new arrow should be based on the difference between the device and the compass direction const newAngle = 360-(deviceAngle-compassAngle)

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