How can I get angle between two points if I have their longitudes and latitudes

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#1

How can I get angle between two points if I have their longitudes and latitudes.

#2

Angles are formed by three points. :slight_smile:

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#3

taking north direction as a line for refrence.

1 Like
#4

So, north will be 0 or north will be 90?

#5

Let a and b ne two points

IMG_20200112_232859
IMG_20200112_2328593120×4160 1.33 MB

I want to find gamma.

#6

I can do that in the canvas, but never tried it in maps.
Maybe you can adapt it. These blocks will return 0 for north.

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image773×267 17 KB

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#7

You have to use trigonometric triangle resolution.
To calculate the angle you need to know the distance of the sides of a triangle. You need to know at least 2 sides to calculate the angle…
You can see it better in any google search with the words “resolution of rectangular triangles”

In your drawing you need to know the distance between a and b and the distance between A and C

Captura666
Captura666380×501 190 KB

Then it would be:
COS γ = AC / AB

1 Like
#8

An enhancement to the compass app to provide additionally the direction to a waypoint

Taifun

#9