Hi,
What would be the equivalent in FME of the ArcGIS "MergeAggregate" function which allows to merge polygon features based on a specified distance and field values?
Thank you
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- 7843 replies
Hi @bergeronfrank, if your requirement is to aggregate polygons which have an identical value in a specified attribute (e.g. "_group") and also are within a specified distance (e.g. "_distance") each other, this workflow might help you.
- Bufferer (Group By: _group, Buffer Amount: _distance * 0.5): Create buffers of the polygons. The buffers that belong to the same "_group" and touch or overlap each other will be dissolved here.
- Counter: Add sequential number to the buffers as temporary ID (e.g. "_id").
- SpatialFilter: Send the buffers to the Filter port, send the original polygons to the Candidate port, make sure that the Merge Attributes option is checked. With this setting, "_id" of a buffer will be transferred to the polygons within it.
- Aggregator (Group By: _group, _id): Aggregate the polygons output from the Passed port of the SpatialFilter, grouping by "_group" and "_id".
+18- Supporter
- 1442 replies
You can also calculate the distance between features and aggregate via the neighborhoodaggregator.