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Area of a polygon in UTM coordinates

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Enrico Gambini
Enrico Gambini on 26 May 2022
Answered: Moksh on 22 Sep 2023
Hello!
Anyone knows how to calculate the area inside a polygon whose coordinates are in the carthographic UTM32N system? I would like to obtain the area on WGS84 ellipsoid.
I just tried "areaint" function on the mapping toolbox, but it doesn't seem to work.
Do you have any suggestion?
Thank you!

Answers (1)

Moksh
Moksh on 22 Sep 2023
Hi Enrico,
I understand that you have generated a WGS84 ellipsoid and would now like to get the area for this.
You can try using the “wgs84Ellipsoid” function in MATLAB, which generated a reference ellipsoid for the WGS system of 1984. You can specify the “lengthUnit” parameter as input to the function to set the plotting unit and then use the “SurfaceArea” parameter to get the surface area and “Volume” parameter to get the volume of the ellipsoid.
Here is an example code:
% Plotting the WGS84 Ellipsoid in kilometers
wgs84 = wgs84Ellipsoid("kilometer");
surfarea = wgs84.SurfaceArea;
volume = wgs84.Volume;
For more information, please refer to the following documentation:
Hope this helps!
Best Regards,
Moksh Aggarwal

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