[Qgis-developer] dynamic (live processed) layers , a very bad idea?

[G. Allegri]

Sometimes I would like to have the possibility to have dynamic layers.
This term has a wide use, with different meanings, in the plethora of GIS
softwares. With dynamic layer I mean a layer whose provider is some code
acting on the original data, e.g. a spatial operator, a map algebra, etc.
I know that it can implicate heavy workloads, depending on the processing
involved, the amount of data, etc. In general I feel it would be nice being
able to expose (in a qgs project, and so for QGis Server too) "live
processed" layers.

I know it's not an original idea. I simply wondered if it has been ever
dicussed for QGis.

giovanni
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