How can i make geotiff file with 2D longitude, 2D latitude and 2D data

longitude, latitude and data are all 3413x2464 double matrix and i want to save this data as geotiff file.

Because i have to read this data by use ENVI program.

i'm sorry i can't give the data sample because it is secret information

Answer 1

[KSSV]

Let A be your matrix and (xmin,xmax) be your xlimits and (ymin,ymax) be your y limits.

% Get geo referenced 
R = georasterref('RasterSize',size(A),'LatitudeLimits',[ymin,ymax],'LongitudeLimits',[xmin,xmax]);
% write to tiff file 
tiffile = 'test.tif' ;
geotiffwrite(tiffile,A,R)
%% Read geotiff file
[A, R] = geotiffread(tiffile);

[yunji song]

but i think i can't use latitudelimits, longitudelimits because lon, lat is all different in same colum and raw.

x is longitude and y is latitude

[KSSV]

You can... Find the min and max of the lons and lats.

[yunji song]

i know that i can find min and max but i think it is not appropriate in this case.

isn't it possible when lon (lat) have same grid in each raw(colum) like below example?

ex) lon=[170,170,170,170;171,171,171,171;172,172,172,172;173,173,173,173]

if i use your code, geo information which saved in tiff file is different with raw data.

[yunji song]

https://kr.mathworks.com/matlabcentral/answers/700100-how-to-write-lat-lon-data-into-geotiff-with-matlab

this case is most similer case with my problem