@turf/buffer - npm Package Compare versions

Comparing version 4.7.3 to 4.7.4

index.js

@@ -6,4 +6,8 @@ var d3 = require('d3-geo');
 var helpers = require('@turf/helpers');
+var turfBbox = require('@turf/bbox');
+var projection = require('@turf/projection');
+var toWgs84 = projection.toWgs84;
 var feature = helpers.feature;
 var geomEach = meta.geomEach;
+var toMercator = projection.toMercator;
 var featureEach = meta.featureEach;
@@ -43,5 +47,2 @@ var featureCollection = helpers.featureCollection;
 
-    // prevent input mutation
-    // geojson = JSON.parse(JSON.stringify(geojson));
-
     // default params
@@ -88,4 +89,3 @@ steps = steps || 64;
     // Geometry Types faster than jsts
-    switch (geometry.type) {
-    case 'GeometryCollection':
+    if (geometry.type === 'GeometryCollection') {
         var results = [];
@@ -100,12 +100,20 @@ geomEach(geojson, function (geometry) {
     // Project GeoJSON to Transverse Mercator projection (convert to Meters)
-    var distance = radiansToDistance(distanceToRadians(radius, units), 'meters');
-    var projection = defineProjection(geojson);
-    var projected = {
-        type: geometry.type,
-        coordinates: projectCoords(geometry.coordinates, projection)
-    };
+    var projected;
+    var bbox = turfBbox(geojson);
+    var needsTransverseMercator = bbox[1] > 50 && bbox[3] > 50;
 
+    if (needsTransverseMercator) {
+        var projection = defineProjection(geometry);
+        projected = {
+            type: geometry.type,
+            coordinates: projectCoords(geometry.coordinates, projection)
+        };
+    } else {
+        projected = toMercator(geometry);
+    }
+
     // JSTS buffer operation
     var reader = new jsts.io.GeoJSONReader();
     var geom = reader.read(projected);
+    var distance = radiansToDistance(distanceToRadians(radius, units), 'meters');
     var buffered = geom.buffer(distance);
@@ -119,4 +127,13 @@ var writer = new jsts.io.GeoJSONWriter();
     // Unproject coordinates (convert to Degrees)
-    buffered.coordinates = unprojectCoords(buffered.coordinates, projection);
-    return feature(buffered, properties);
+    var result;
+    if (needsTransverseMercator) {
+        result = {
+            type: buffered.type,
+            coordinates: unprojectCoords(buffered.coordinates, projection)
+        };
+    } else {
+        result = toWgs84(buffered);
+    }
+
+    return (result.geometry) ? result : feature(result, properties);
 }
@@ -123,0 +140,0 @@

package.json

 {
   "name": "@turf/buffer",
-  "version": "4.7.3",
+  "version": "4.7.4",
   "description": "turf buffer module",
@@ -31,3 +31,4 @@ "main": "index.js",
     "Tom MacWright <@tmcw>",
-    "Denis Carriere <@DenisCarriere>"
+    "Denis Carriere <@DenisCarriere>",
+    "Stefano Borghi <@stebogit>"
   ],
@@ -47,5 +48,7 @@ "license": "MIT",
   "dependencies": {
-    "@turf/center": "^4.7.3",
-    "@turf/helpers": "^4.7.3",
-    "@turf/meta": "^4.7.3",
+    "@turf/bbox": "^4.7.1",
+    "@turf/center": "4.7.1",
+    "@turf/helpers": "4.7.1",
+    "@turf/meta": "4.7.1",
+    "@turf/projection": "^4.7.1",
     "d3-geo": "^1.6.3",
@@ -52,0 +55,0 @@ "jsts": "1.3.0"

No alert changes

Improved metrics

Total package byte prevSize

13063

increased by4.65%

Lines of code

205

increased by8.47%

Worsened metrics

Dependency count

7

increased by40%

Dependency changes

• + Added@turf/bbox@^4.7.1

• + Added@turf/projection@^4.7.1

• + Added@turf/bbox@4.7.1(transitive)

• + Added@turf/center@4.7.1(transitive)

• + Added@turf/clone@4.7.3(transitive)

• + Added@turf/helpers@4.7.1(transitive)

• + Added@turf/meta@4.7.1(transitive)

• + Added@turf/projection@4.7.3(transitive)

• - Removed@turf/center@4.7.3(transitive)

• - Removed@turf/helpers@4.7.3(transitive)

• Updated@turf/center@4.7.1

• Updated@turf/helpers@4.7.1

• Updated@turf/meta@4.7.1