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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