how to convert a latitude and Longitude(degree units) to X Y(length units)?

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Hussain Ali
Hussain Ali 2021-1-23
回答： Khush Bakhat Sawaiba 2021-5-19
Greetings everyone!
I am trying to simulate trajectory of UAV, for this I have used TIFF file for initial simulations that returns X Y coordinates (using ginput command), it worked well but when i tried to use geographic axes (geoplot) that returns latitude and longitude, I couldn't simulate proper trajectory as the units differ so i want to convert latitude and longitude to X and Y respectively.
NOTE: I have tried using deg2km or grn2eqa command but they dont give actual X/Y coordinates as shown by TIFF file, images have been given for refernce, same point has been selected to get readings
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Hussain Ali
Hussain Ali 2021-1-23
@Walter Roberson actually i want to use geogrpahic axes which gives me an advantage of panning/zooming or adjusting before taking inputs.
I used tiff file to build my code (trajectory of UAV) and ensure its proper working.
SO I WANT TO CONVERT LATITUDE/LONGITUDES FROM GEOAXES TO X/Y COORDINATES
Walter Roberson
Walter Roberson 2021-1-23
In https://www.mathworks.com/matlabcentral/answers/724822-how-to-convert-a-latitude-and-longitude-degree-units-to-x-y-length-units#comment_1280392 I posted links to functions that convert from lat/long to X/Y coordinates. However, whether those functions are appropriate depends upon the datatype of the raster reference R . I do not know whether they are the correct functions for your purposes because you have not shown me the output of the class(R ) that I asked for.
Please execute
[A, R, map] = readgeoraster('ISTILL.tif');
class(R)
and tell me what the output is.

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回答（1 个）

Khush Bakhat Sawaiba
Hussain Ali Can I get your email id so that, I may discuss this query to you .Here I am unable to attach some files

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