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Question

Handling of intersecting/overlapped polygons

  • November 9, 2017
  • 2 replies
  • 144 views

fmeuser_gc
Contributor
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I'm trying to edit my workspace to handle the ovevrlapped polygons on the boundaries.How can I remove overlaps?

Here I isolated a location. Dues to overlaps this location is falling under both the polygons. The boundaries on both sides of location are opposite boundaries of overlapped polygons. In other words, boundary shown on right would also be part of left polygon.

Please note that this happens only when I write to Netezza.

2 replies

erik_jan
Contributor
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  • Contributor
  • November 9, 2017

Detecting overlaps can be done with the AreaonAreaOverlayer.

This transformer adds an attribute (default _overlaps).

Testing for features with _overlaps > 1 will result in the overlapping sections of polygons (Tester).

Then it depends on what you want as a result how to move on.


fmeuser_gc
Contributor
Forum|alt.badge.img+8
  • Author
  • Contributor
  • November 9, 2017
erik_jan wrote:

Detecting overlaps can be done with the AreaonAreaOverlayer.

This transformer adds an attribute (default _overlaps).

Testing for features with _overlaps > 1 will result in the overlapping sections of polygons (Tester).

Then it depends on what you want as a result how to move on.

I've used SpatialRelator and Donutbuilder. Trying with different combinations.

Here is the sample workspace that I've used.


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