[Qgis-developer] Error : cannot connect to X server on Ubuntu

[devquestions2 at gmail.com]

thanks Matthias,

Actually this is what i am trying to do.

i need to calculate wetness index, so i have developed a model in qgis
graphical modeler that invokes grss-saga algorithsm to calculate slope,
wetness index etc.

all i want to do is to run that algorithm in a headless mode. 

So, using processing model is the only way here or there are any other
approaches ?

using xvfb-run  is an option, but it will complicate something else i.e i
want then invoke the scripts via hadoop-mapreduce for parallel execution.





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