Latitude longitude to meters on Mars

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fabriziorosi92 2016-10-5

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评论： Gabrielle Hedrick 2019-5-11

Hello, I have to transform lat, lon to meters on Mars. I tried deg2km(..., 'mars'), but it doesn't work because this function consider mars as a sphere. Any idea?

Thank you.

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fabriziorosi92 2016-10-6

Well, obviously not from scratch. I've seen something like that. But in my case it doesn't work with the flattening of Mars.

Pratically I need something that transform degrees in meters on an ellipsoid.

Gabrielle Hedrick 2019-5-11

I'm going to comment on this in case someone else is looking for this (apparently I wasn't the only one!):

https://ode.rsl.wustl.edu/mars/pagehelp/quickstartguide/index.html?coordinate_system.htm

this page gives the radii taken into consideration for the coordinates. To change from degree to meters, calculate the circumference, divide by 360 and it gives a factor to go from degree to km.

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回答（1 个）

Matthias Walle 2016-10-6

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Hello,

Are you looking for something like the Vincenty's formulae in Matlab? It is used to calculate the distance between two points on the surface of a spheroid.

this might be what you are looking for

you can change the parameters of the ellipsoid axis in the file for Mars I guess.

I hope this helped,

Matthias