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Use Dissolver to merge all polygons to create just ONE polygon

  • March 4, 2026
  • 2 replies
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scarter
Contributor
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Hello

 

I’m experiencing some issues using Dissolver.

 

I want to take a polygon dataset which contains 160,455 independent polygons objects. Some of the polygons overlaps with other polygons. Some are not overlapped by others.

 

I want to merge all of the polygons, whilst dissolving any overlaps, to create just one polygon object. Using Dissolver I am only able to merge polygons where they are overlapping, whilst input polygons that are not overlapped by other are remaining unmerged. This means that I’m getting 80,090 records in the output. But I don’t want that. I want just one polygon object as one record.

 

This diagram illustrates (conceptually) what I have, what I’m getting with Dissolver, and what I require.

How do I use Dissolver to do this? Or should I use a different transformer.

 

Thanks,

2 replies

DanAtSafe
Safer
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  • Safer
  • March 4, 2026

Hi ​@scarter Use an Aggregator after the Dissolver.


scarter
Contributor
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  • Author
  • Contributor
  • March 4, 2026

Thanks ​@DanAtSafe . I’ll try it.