[QGIS-Developer] run algorithm pyQgis 3

[Cibeles Redondo Veloso]

Dear Matteo,

Thank you for your answer.

I using this code to check all the processing available with PyQGIS3

> for i in QgsApplication.processingRegistry().algorithms():
>     print("{}:{} --> {}".format(i.provider().name(), i.name(),
> i.displayName()))


In the result there is no "saga:triangulation".

Also, I already try algorithmHelp('saga:triangulation')

[image: image.png]

There is no result.

That is the reason why I am writing here. I search for several days and I
do not find anything, also in StackOverflow and StackEchange.


Thank you in advance!







El mié., 12 feb. 2020 a las 7:34, matteo (<matteo.ghetta at gmail.com>)
escribió:

> Hi,
>
> > I am trying to convert a script from PyQGIS 2 to PyQGIS 3
> >
> > In the original script, the author used
> > processing.runalgorithm("saga:triangulation", parameters). Now, I am
> > trying to use it as same as possible with PyQGIS3 but I am not finding
> > anything similar:
> >
> >  1. I am using processing.run instead of processing.runalgorithm
> >  2. I am aware that there is no SAGA API for Python 3
> >  3.  The objective of the code is change as less as possible. That's why
> >     I am not looking for other solutions (except if you tell me there is
> >     no similar solution, of course)
> >
> > Maybe someone knows what can I do in this case?
>
> check which parameters have been specified: it might be a different
> number of them between QGIS2 and QGIS3.
>
> Type processing.algorithmHelp('saga:triangulation') to see the list and
> type of each single parameter.
>
> A complete guide of how to use algorithm from the console is n the user
> manual:
>
> https://docs.qgis.org/testing/en/docs/user_manual/processing/console.html
>
> Cheers
>
> Matteo
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