tutorial

[Joaquin-Urruti]

Hi! I'm not an advanced user of python so don't know how to use the package. I tryed to detrend a raster but couldn't do it. Could you give me some help on how to call the function once I installed the package?

[ArcticSnow]

Hi @Joaquin-Urruti ,

So you wanna first open the raster with the function openGeoTiff(). It will return the 2D array. You use this one on the function detrend() which will detrend the raster.

detrend() returns a numpy 2D array. So then you need to save a new raster using the same geotransform as the original one. For that you can use: saveArray2RasterTiff()

[Joaquin-Urruti]

Hi @ArcticSnow!

Thanks for the answer.

I'm trying to install the lib like I show in the pic but can't access the methods of rasterTool. I'm a bit lost sorry

[Joaquin-Urruti]

I also tryed like this:

[ArcticSnow]

try

from dempy import rasterTool as rt

rt.openGeoTiff(file)

[Joaquin-Urruti]

thank you Simon. I wasn't able to install on macos, I had some problem with open-cv

[Joaquin-Urruti]

I installed in a new anaconda env in windows but couldn't make it work either.
I think there are several dependency problems in the package, I tryed to fix it but I couldn't...

[ArcticSnow]

I have had many issues of compatibilities between gdal and opencv. A trick I think I had was to install gdal with conda and opencv with pip. It is an ad-hoc solution. Both library are very useful but sadly not easily compatible.
Good luck