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21 lines
604 B
Plaintext
21 lines
604 B
Plaintext
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title: $:/plugins/tiddlywiki/geospatial/docs/geodifference
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caption: geodifference operator
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tags: $:/tags/GeospatialDocs
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!! `geodifference` operator
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The `geodifference` operator calculates the difference between two or more [[GeoJSON Polygon Features|GeoJSON Polygon Feature]].
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Each input list item is interpreted as a [[GeoJSON Polygon Feature Collection]] containing polygons.
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```
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[geodifference[]]
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```
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!! Examples
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<$testcase>
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<$data $compound-tiddler="$:/plugins/tiddlywiki/geospatial/tests/operators/geodifference-interactive"/>
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<$data $tiddler="$:/plugins/tiddlywiki/geospatial"/>
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</$testcase>
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