title: $:/plugins/tiddlywiki/geospatial/tests/operators/geounion
description: geounion operator
type: text/vnd.tiddlywiki-multiple
tags: [[$:/tags/wiki-test-spec]]

title: Description

geounion operator
+
title: Output

\whitespace trim
<$text text={{{ =[{LayerOne}] =[{LayerTwo}] +[geounion[]] }}}/>
+
title: LayerOne
type: application/json

{
	"type": "FeatureCollection",
	"features": [
		{
			"type": "Feature",
			"geometry": {
				"type": "Polygon",
				"coordinates": [
					[[100.0,0.0],[102.0,0.0],[102.0,2.0],[100.0,2.0],[100.0,0.0]]
				]
			}
		}
	]
}
+
+
title: LayerTwo
type: application/json

{
	"type": "FeatureCollection",
	"features": [
		{
			"type": "Feature",
			"geometry": {
				"type": "Polygon",
				"coordinates": [
					[[101.0,1.0],[103.0,1.0],[103.0,3.0],[101.0,3.0],[101.0,1.0]]
				]
			}
		}
	]
}
+
title: ExpectedResult

<p>{"type":"FeatureCollection","features":[{"type":"Feature","properties":{},"geometry":{"type":"Polygon","coordinates":[[[100,0],[102,0],[102,1],[103,1],[103,3],[101,3],[101,2],[100,2],[100,0]]]}}]}</p>