title: $:/plugins/tiddlywiki/geospatial/docs/geodifference
caption: geodifference operator
tags: $:/tags/GeospatialDocs

!! `geodifference` operator

The `geodifference` operator calculates the difference between two or more [[GeoJSON Polygon Features|GeoJSON Polygon Feature]].

Each input list item is interpreted as a [[GeoJSON Polygon Feature Collection]] containing polygons.

```
[geodifference[]]
```