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Best way to find islands polygon


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I am looking for the best way to extract all islands of a polygon dataset.

 

 

Thank you very much!

Best answer by gio

Spatialrelator (intersect) on only polygons.

 

Test for related_candidates = 0
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4 replies

david_r
Evangelist
  • June 26, 2014

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  • Author
  • June 26, 2014
Hi David,

 

Thanks for your answer. By islands I mean real islands in middle of water without adjacent polygon. DonutHoleExtractor returns polygon that are completely within a bigger polygon.

gio
Contributor
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  • Contributor
  • Best Answer
  • June 26, 2014
Spatialrelator (intersect) on only polygons.

 

Test for related_candidates = 0

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  • Author
  • June 26, 2014
Very simple, thank you Gio

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