How to properly rotate a raster

[Regina Obe]

By size, what do you mean exactly?  It would change the width and height.

 

What are you expecting rotation to do.  Perhaps you can give example out of the below and some sample

 

ST_Width, ST_Height, ST_SkewX  before and after and what you were expecting.

 

https://postgis.net/docs/en/RT_ST_SetRotation.html

 

From: Eloi Ribeiro <mail at eloiribeiro.eu> 
Sent: Monday, March 18, 2024 4:57 AM
To: PostGIS Users Discussion <postgis-users at lists.osgeo.org>
Subject: How to properly rotate a raster

 

Hi all,

 

I need to rotate a raster, for that I'm using the function ST_SetRotation, like so: 

CREATE TABLE plot_3_rotated AS 
SELECT ST_SetRotation(rast, 0.03516235334249185) rast 
FROM plot_3;

 

But I see that is not producing the expected results and is changing size of the raster. What am I doing wrong?

Cheers,

 

Eloi

 

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