I am working on a project where I want to automatize the workflow using the QGIS graphical modeler. The problem is that I want to use the Group Stats Plugin as a part of my model but can't integrate it as an algorithm in my modeler. Does anyone knows how can I use a plugin into the modeler ? Or is it even possible ?
Depends on the plugin.
Some plugins are designed to be integrated with the Processing Framework such as the GeoServer Explorer Plugin which contains several tools readily accessible from the Processing Toolbox and modeler.
However, I think currently most plugins do not possess this level of integration.
Use a custom script.
There have been a number of posts here asking how to access such plugins using Python (or the modeler):
- Is there a way to access QGIS plugins in Python?
- How to call the interpolation plugin from the python console?
- How to use Qgis Gridsplitter Plugin in Console
- Access all plugin from QGIS Modeler (Sextante)
Again, some plugins can be easily called using python scripts but others not so, you will need to examine the source code.
But if a plugin can be accessed easily, you could create a custom script in your modeler which would contain the code necessary to call the plugin.