[Qgis-developer] QGIS Processing Framework

[MALIK Julien]

Hello Camilo,

Some feedback about your todo list :

- constraints and validator is low priority to me : it can be handled  
by the underlying implementation for now
- user level is low priority to me as it will probably be easy to add  
this feature later when the big things will be in shape
- interactive parameters : higher priority to me. Having a way for the  
implementation to tell the GUI "update every widgets". Maybe I already  
have a way to do that (?)

A few things you don't mention :
- running the processing modules programmatically
- progress reporting
- logging
- multiple values parameter type (at least to provide a "multiple  
input layers" parameter type)
- parameter groups (what happen currently with the SAGA "nodes" ?)

I agree with your analysis : being able to access the QGis layers for  
the input/output is now the most important thing to focus on.

What precisely is blocking you on this topic ?
I saw some recent updates adding a combobox with the layers but did  
not test it yet. The implementations could handle the conversion into  
their own internal data structure from the MapLayer objects.
I know at least that on the OTB side, a first step will be getting a  
gdal/ogr compatible dataset name and pass them as input files to the  
implementation.
As I can remember, SAGA has a "gdal/ogr" importer module for inputs,  
and the output should be simple also as the saga file format is  
supported by gdal.

Regards,
Julien

Quoting Camilo Polymeris <cpolymeris at gmail.com>:

> Hello everyone,
>
> the end of GSoC's first term is nearing and while I think we have made
> a significant progress, many things are still pending. I have tried to
> identify a few and compile a short list[1], to try to keep focused
> during the next few weeks.
> I'll try to create a proper timeline with (some of) those items &
> would appreciate your comments. Anything missing? Some things more
> urgent than others?
>
> Of course, most of the work will revolve around the first item: Data
> exchange. Still no clarity on how to handle that.
>
> Regards,
>
> Camilo
>
>



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