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scottschluer / geolocation

A C# class library that will calculate distance and cardinal direction between two sets of coordinates and provides the lat/long boundaries around an origin coordinate allowing for simple SQL or LINQ selection of locations within the given radius.
MIT License
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True Bearing vs. Magnetic #21

Open Spicy-Bread opened 2 years ago

Spicy-Bread commented 2 years ago

Hello,

I'd like to make a request for the bearing method to return both true and magnetic bearing.

Thanks

MartinGlob commented 2 years ago

That is really difficult for several reasons.

MH = TH + Variation.

So you'd have to know variation based on isogonic lines around the world. And they change slowly every year.

And the variation changes depending on your location - so going from A to B will have a single TH, but your MH will change all the time.