Dev

javascript/difference.js

@@ -6,14 +6,16 @@ function difference() {
     var name = document.getElementById("differenceName").value;
 
     // Må konverteres fra feature collection til multipolygon:
-    var coords1 = featureCollectionToMultiPolygon(layer1);
-    var coords2 = featureCollectionToMultiPolygon(layer2);
-    
-    var multiPolygon1 = turf.multiPolygon(coords1);
-    var multiPolygon2 = turf.multiPolygon(coords2);
+    var multiPolygon1 = featureCollectionToMultiPolygon(layer1);
+    var multiPolygon2 = featureCollectionToMultiPolygon(layer2);
 
     try {
         var difference = turf.difference(multiPolygon1, multiPolygon2);
+        
+        if (isMultiPolygon(difference)) {
+            difference = multiPolygonToFeatureCollection(difference);
+        }
+        
         var newLayer = L.geoJSON(difference, {style: getStyle()});
         
         overlayMaps[name] = newLayer;