Hi Sven,
can you specify your question: what is unclear and where exactly do you
need support for?
best regards
stefan
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Am 2019-03-25 10:04, schrieb Sven Böhme - empirica:
Hi!
I'm trying to aggregate neighboring polygons based on additional
conditions. These are:
- the polygons must be adjacent
- the polygons must be of the same type (simple value from attribute)
- the polygons should only be combined if the values of an attribute x
are below a certain value AND
- the polygons shall be merged with other polygons until this value is
reached
The polygons are grids. Aggregation should not necessarily lead to new
squares (as in the Quadtree-method).
I use PostGIS to store the data and QGIS for visualization and further
processing. For performance reasons I suspect that a
database-supported procession makes sense, but if QGIS (GDAL,GRASS
etc.) offers a function, I would like to try it out.
I would be happy about support
Best regards
Sven
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