How to write a matrix into Geotiff file?

5 次查看（过去 30 天）
Leon
Leon 2015-5-27
评论： Waqas Ahmad 2017-8-22
The instruction provided by Mathworks says this "geotiffwrite(filename,A,R) writes a georeferenced image or data grid, A, spatially referenced by R, into an output file, filename."
My question is what exactly is R?
I have a matrix Z the size of 181 x 361, and I want to save it as a Geotiff file so that my friend can read it into ArcGIS. I tried
geotiffwrite('a.tif', Z, size(Z))
and it did not work;
  1 个评论
Waqas Ahmad
Waqas Ahmad 2017-8-22
R is a georeferencing matrix which specifies the position of your grtid (matrix Z) on the world map when you open the geotif in arcgis. See refmatToGeoRasterReference documentation https://kr.mathworks.com/help/map/ref/refmattogeorasterreference.html

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Dasharath Gulvady
Dasharath Gulvady 2015-5-28
According to the documentation R is:
spatialref.GeoRasterReference object, referencing matrix, or referencing vector; or spatialref.MapRasterReference object or referencing matrix. Provides spatial referencing information.
You may use "georasterref" to create a reference matrix from your matrix.
http://www.mathworks.com/help/map/ref/georasterref.html?searchHighlight=georasterref

类别

在 Help Center 和 File Exchange 中查找有关 Data Import and Export 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by