Question
I want to apply the 'DonutBuilder' transformer to several polygon layers, the output layers will be merged into one polygon layer containing the combined dropped 'holes'. How can i achieve this?
+15- Contributor
use a featurereader or advanced reader, aply
DonutBuilder grouped by feature type (if needed), keep holes.
Filter non-holes using a tester (DonutBuilder creates an attribute "_hole_flag" you can test on).
Use a dissolver.
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