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north-road / qgis-processing-saga-nextgen

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SAGA >= 9.1 needed but currently not optimally distributed #34

Closed florisvdh closed 5 months ago

florisvdh commented 9 months ago

The binary SAGA packages distributed through OSGeo4W (Windows) and ubuntugis-unstable PPA (Ubuntu) are lagging behind quite a lot, being at 7.8.2 and at 8.2.2 respectively. For Windows, an up-to-date binary build can be installed manually from https://sourceforge.net/projects/saga-gis/files/ while other platforms need to locally build from source to get it.

Currently users that make use of OSGeo4W / ubuntugis-unstable PPA (and perhaps other) repositories that distribute SAGA will get a warning after updating the plugin to version 1.0.0, like below.

Since the QGIS plugin now requests SAGA >= 9.1, I think it's a good idea to stimulate the OSGeo4W and the PPA maintainers to update SAGA in their repository.

$ qgis_process plugins
Problem with SAGA installation: unsupported SAGA version (found: 8.2.2, required: >=9.1.).
['PC_OUT', 'Result', None, 'True']
['PC', 'Point Cloud', None, 'True']
['PC_OUT', 'Colorised Point Cloud', None, 'False']
['THINNED_PC', 'Thinned Points', None, 'False']
['POINTS', 'Points', None, 'False']
['PC_OUT', 'Filtered Points', None, 'True']
['RESULT', 'Thinned Points', None, 'True']
['OUTPUT', 'Output', None, 'True']
['OUT', 'Output', None, 'False']
['POINTS', 'Points', None, 'True']
['TARGET_PC', 'Target', None, 'False']
['PC_OUT', 'Point Cloud Classified', None, 'True']
['POINTS', 'Points', None, 'False']
['POINTS', 'Points', None, 'False']
['PC_OUT', 'Point Cloud', None, 'True']
['PC_OUT', 'Result', None, 'True']
['TARGET_PC', 'Target', None, 'False']
['PC_OUT', 'Point Cloud', None, 'False']
['PC_OUT', 'Merged Point Cloud', None, 'False']
['POINTS', 'Points', None, 'False']
Available plugins
(* indicates loaded plugins which implement Processing providers)

* QNEAT3
* processing_saga_nextgen
* pcraster_tools
* ViewshedAnalysis
* cartography_tools
* wbt_for_qgis
* latlontools
* grassprovider
* otbprovider
* processing
nyalldawson commented 9 months ago

Thanks for raising this discussion @florisvdh !

Since the QGIS plugin now requests SAGA >= 9.1, I think it's a good idea to stimulate the OSGeo4W and the PPA maintainers to update SAGA in their repository.

I agree wrt the Linux packagers, but is there really any need to update osgeo4w's version? I'd argue that it's ultimately deprecated and users should just use the official saga installer instead. (Ping @jef-n for thoughts!)

florisvdh commented 9 months ago

need to update osgeo4w's version

I'm no Windows user, but on the QGIS download page using OSGeo4W is recommended to Windows users: The OSGeo4W installer is recommended for regular users or organization deployments. So I was assuming that's where they will usually get SAGA from as well (I have seen the OSGeo4W SAGA version pop up in {qgisprocess} issues a couple of times IIRC). I have not enough knowledge about OSGeo4W plans / aims to evaluate.

florisvdh commented 9 months ago

@kalxas I believe there's good reason here to update SAGA in the ubuntugis-unstable PPA, in order to satisfy the requirements of the SAGA processing provider in QGIS. It seems that a SAGA update is being prepared in OSGeo4W (https://github.com/jef-n/OSGeo4W/commit/4d63df4bd179f0be2188bbf26b9d631deb5ff705).

jef-n commented 9 months ago

saga9 is in osgeo4w and debian unstable.

kalxas commented 9 months ago

I will look at the latest saga version for UbuntuGIS

benz0li commented 9 months ago

@nyalldawson Thank you for updating the plugin to support SAGA GIS v9.1. Great work!

I have updated my 'Debian 12'-based, multi-arch (linux/amd64, linux/arm64)

with a source build of SAGA GIS v9.1.3.
ℹ️ The GPU accelerated (CUDA-enabled, 'Ubuntu 22-04'-based) images remain at SAGA GIS v7.3.0 and plugin v0.0.7.

[^1]: qgisprocess image

benz0li commented 9 months ago

Running some tests with the R qgisprocess Data Science Dev Container

I found that executing unset QT_QPA_PLATFORM; qgis[^1] successfully starts QGIS in an X window[^2].

[^1]: QT_QPA_PLATFORM is set to offscreen by default in the qgisprocess images. [^2]: Not using full resolution on 'high dpi'/retina displays.
ℹ️ I.e. upscaled 1920 x 1080 instead of full 3840 x 2160 res.
Cross reference: https://gitlab.freedesktop.org/xorg/xserver/-/issues/187

Can someone test, whether the same works

roya0045 commented 8 months ago

On windows I am having issues with the plugin. It seems that launchin saga from '.\OSGeo4W\apps\saga9' is not fully functionnal as dll are missing.

Executing saga from ".\OSGeo4W\bin\saga9_gui.bat" works as intended as the missing dll are added in the paths.

My qgis installation is in osgeo4w but the plugin can't seem to get the saga 9 version. I'm assuming this is also due to missing dll upon initiation,but I'm not sure why I'm having issues with missing paths for osgeo dll.

osgeo installed was also never able to uninstall saga, strangely, but unrelated to the issue.

feefladder commented 8 months ago

Also on Windoze with OSGeo4W: Installing both saga and saga9: image Then, it will use the saga7.8 version: image So, go into C:\apps\ and rename saga->saga7 and saga9->saga. image Alternatively, is there a way to tell this plugin where saga is installed? image

florisvdh commented 8 months ago

is there a way to tell this plugin where saga is installed?

florisvdh commented 5 months ago

I will look at the latest saga version for UbuntuGIS

Originally posted by @kalxas in https://github.com/north-road/qgis-processing-saga-nextgen/issues/34#issuecomment-1751785113

Updates have been applied to the ubuntugis PPAs lately. The ubuntugis-unstable PPA now has a much more recent SAGA version! Thank you for the solution @kalxas.

$ apt policy saga
saga:
  Installed: 8.2.2+dfsg-1~jammy0
  Candidate: 9.3.0+dfsg-1~jammy0
  Version table:
     9.3.0+dfsg-1~jammy0 500
        500 http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu jammy/main amd64 Packages
 *** 8.2.2+dfsg-1~jammy0 100
        100 /var/lib/dpkg/status
     7.3.0+dfsg-7 500
        500 http://ftp.belnet.be/ubuntu jammy/universe amd64 Packages
kalxas commented 5 months ago

you are welcome