Model Designer - Available Algorithms

Question

Is it possible to add an algorithm from the Processing Toolbox to the list of available algorithms in the Model Designer? Looking at the question HERE, I see that they are in the designer and are using the algorithm Download OSM data from a query in an extent, but I am not seeing this in the algorithm list in the designer. enter image description here enter image description here

Answer 1

I believe they modified the plugin QuickOSM because by default the algorithms in the toolbox aren't available in modeler and those in modeler aren't available in toolbox. They have a flag set depending on where they are supposed to be used by using the flags QgsProcessingAlgorithm.FlagHideFromModeler and QgsProcessingAlgorithm.FlagHideFromToolbox

Algorithms available in the modeler are: enter image description here

I guess you could bypass this restriction by modifying the code of the plugin to remove the relevant flags.

Otherwise there is this tutorial on how to use the modeler algorithms the way they are intended. (it contains an explanation and also an example model at the end of the page).