[Qgis-developer] Re: Module piping GUI [Was: analytical workflow]

[Camilo Polymeris]

On Thu, Sep 29, 2011 at 8:56 AM, Paolo Cavallini <cavallini at faunalia.it> wrote:
> Il giorno gio, 29/09/2011 alle 13.45 +0200, Johan Van de Wauw ha
> scritto:
>
>> I understand the first one (graph) immediately.
>> I have no clue how the second one works with the lines across two
>> lists. From a usability perspective I'd choose the first one.
>
> Moreover, I think most users will be more familiar with the first
> option. I would suggest following leading solutions in this area, and
> having a look to GRASS Modeler:
> http://grass.osgeo.org/wiki/WxGUI_Modeler
> Thanks.

Ok.

So it seems there is (almost) a consensus on the graph option, mostly
because of familiarity. Perhaps later with elements of patchbay for
complicated cases.

In terms of implementation difficulty, I think neither is too
complicated, as soon as we have the right underlying models. I have
been experimenting with the QGraphicsView/Model/Scene thing that
Martin mentions, while writing a prototype of the patchbay. I'll drop
that now, and see what the graph implementation could look like.

Thanks & best regards,

Camilo