@turf/union - npm Package Compare versions

Comparing version 3.0.18 to 3.2.0

index.js

@@ -9,7 +9,6 @@ // look here for help http://svn.osgeo.org/grass/grass/branches/releasebranch_6_4/vector/v.overlay/main.c
 /**
- * Takes two {@link Polygon|polygons} and returns a combined polygon. If the input polygons are not contiguous, this function returns a {@link MultiPolygon} feature.
+ * Takes two or more {@link Polygon|polygons} and returns a combined polygon. If the input polygons are not contiguous, this function returns a {@link MultiPolygon} feature.
  *
  * @name union
- * @param {Feature<Polygon>} poly1 input polygon
- * @param {Feature<Polygon>} poly2 another input polygon
+ * @param {...Feature<Polygon>} A polygon to combine
  * @return {Feature<(Polygon|MultiPolygon)>} a combined {@link Polygon} or {@link MultiPolygon} feature
@@ -60,15 +59,18 @@ * @example
  */
-module.exports = function (poly1, poly2) {
+module.exports = function () {
     var reader = new jsts.io.GeoJSONReader();
-    var a = reader.read(JSON.stringify(poly1.geometry));
-    var b = reader.read(JSON.stringify(poly2.geometry));
-    var union = a.union(b);
+    var result = reader.read(JSON.stringify(arguments[0].geometry));
+
+    for (var i = 1; i < arguments.length; i++) {
+        result = result.union(reader.read(JSON.stringify(arguments[i].geometry)));
+    }
+
     var writer = new jsts.io.GeoJSONWriter();
+    result = writer.write(result);
 
-    union = writer.write(union);
     return {
         type: 'Feature',
-        geometry: union,
-        properties: poly1.properties
+        geometry: result,
+        properties: arguments[0].properties
     };
 };

package.json

 {
   "name": "@turf/union",
-  "version": "3.0.18",
+  "version": "3.2.0",
   "description": "find the union of geographic features",
@@ -5,0 +5,0 @@ "main": "index.js",

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5256

increased by0.36%

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