Dear list,
I am trying to find a solution for the following problem with the model builder:
My model asks for two vector polygon layers that will be combined by `union´.
The resulting layer gets a new field (field calculator) and is evaluated by
`Statistics by categories´ algorithm. The fields for the categories are
selected by the user when calling the model. Since those fields are present in
the two separate input layers, I have to use two separate `Vector field´ inputs.
The problem arises when I try to combine those two input variables to use them
together for the `Statistics by categories´ algorithm. AFAICS there is no
function inside the model builder to achieve this, so I suggest I have to
export the model as a python script. There I found that the call of the
Statistics function gives the name of the variable as a parameter and not the
variable itself:
alg_params = {
'CATEGORIES_FIELD_NAME': parameters['fields'], ....
How can I combine my two lists (~like "parameters[`fields´+´fields2´], or is
there a way to do this inside the model builder that I didn´t find?
Thanks in advance for help, kind regards
Simon Dietmann
Mit freundlichen Grüßen
im Auftrag
Simon Dietmann
M.Sc. Physische Geografie
Aufgrund der aktuellen Situation bin ich zur Zeit vermehrt im Home Office tätig
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