How can I export a matrix as a geotiff file?

45 次查看（过去 30 天）

Intan Antasari 2019-1-31

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/442550-how-can-i-export-a-matrix-as-a-geotiff-file

评论： KSSV 2019-2-1

I want load this matrix to ArcMap

I did several approach. I tried to convert .mat into ASCII (txt format) but it's not appear, maybe I did something wrong when I did the conversion.

Then I tried to save the file via a tool bar across the top of the figure, click on file, save as.

The result doesn't have correct coordinate system when I open on ArcMap.

Thank you for your help.

Intan

2 个评论
显示无隐藏无

Walter Roberson 2019-1-31

Is there a reason you have not used geotiffwrite() ?

Intan Antasari 2019-1-31

编辑：Intan Antasari 2019-1-31

I've tried beforehand but I got an error because I choose wrong example. I tried write an image referenced to geographic coordinate.I got some approach from this link https://nl.mathworks.com/help/map/exporting-images-and-raster-grids-to-geotiff.html

Which one should I choose for converting .mat data to projected coordinate system If I already have reference image beforehand?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

KSSV 2019-2-1

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/442550-how-can-i-export-a-matrix-as-a-geotiff-file#answer_358994

编辑：KSSV 2019-2-1

在 MATLAB Online 中打开

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);