turf-buffer - npm Package Compare versions

Comparing version 1.1.0 to 3.0.0-canary.2f5f7167

index.js

@@ -5,3 +5,4 @@ // http://stackoverflow.com/questions/839899/how-do-i-calculate-a-point-on-a-circles-circumference
 
-var featurecollection = require('turf-featurecollection');
+var helpers = require('turf-helpers');
+var featureCollection = helpers.featureCollection;
 var jsts = require('jsts');
@@ -11,69 +12,52 @@ var normalize = require('geojson-normalize');
 /**
-* Calculates a buffer for input features for a given radius. Units supported are miles, kilometers, and degrees.
-*
-* @module turf/buffer
-* @category transformation
-* @param {(Feature|FeatureCollection)} feature input to be buffered
-* @param {Number} distance distance to draw the buffer
-* @param {String} unit 'miles', 'feet', 'kilometers', 'meters', or 'degrees'
-* @return {FeatureCollection<Polygon>|FeatureCollection<MultiPolygon>|Polygon|MultiPolygon} buffered features
-*
-* @example
-* var pt = {
-*   "type": "Feature",
-*   "properties": {},
-*   "geometry": {
-*     "type": "Point",
-*     "coordinates": [-90.548630, 14.616599]
-*   }
-* };
-* var unit = 'miles';
-*
-* var buffered = turf.buffer(pt, 500, unit);
-* var result = turf.featurecollection([buffered, pt]);
-*
-* //=result
-*/
+ * Calculates a buffer for input features for a given radius. Units supported are miles, kilometers, and degrees.
+ *
+ * @name buffer
+ * @category transformation
+ * @param {(Feature|FeatureCollection)} feature input to be buffered
+ * @param {Number} distance distance to draw the buffer
+ * @param {String} unit any of the options supported by turf units
+ * @return {FeatureCollection<Polygon>|FeatureCollection<MultiPolygon>|Polygon|MultiPolygon} buffered features
+ *
+ * @example
+ * var pt = {
+ *   "type": "Feature",
+ *   "properties": {},
+ *   "geometry": {
+ *     "type": "Point",
+ *     "coordinates": [-90.548630, 14.616599]
+ *   }
+ * };
+ * var unit = 'miles';
+ *
+ * var buffered = turf.buffer(pt, 500, unit);
+ * var result = turf.featurecollection([buffered, pt]);
+ *
+ * //=result
+ */
 
-module.exports = function(feature, radius, units) {
+module.exports = function (feature, radius, units) {
 
-  switch (units) {
-    case 'miles':
-      radius = radius / 69.047;
-    break;
-    case 'feet':
-      radius = radius / 364568.0;
-    break;
-    case 'kilometers':
-      radius = radius / 111.12;
-    break;
-    case 'meters':
-    case 'metres':
-      radius = radius / 111120.0;
-    break;
-    case 'degrees':
-    break;
-  }
+    var degrees = helpers.distanceToDegrees(radius, units);
+    var fc = normalize(feature);
+    var buffered = normalize(featureCollection(fc.features.map(function (f) {
+        return bufferOp(f, degrees);
+    })));
 
-  var fc = normalize(feature);
-  var buffered = normalize(featurecollection(fc.features.map(function(f) {
-    return bufferOp(f, radius);
-  })));
-
-  if(buffered.features.length > 1) return buffered;
-  else if(buffered.features.length === 1) return buffered.features[0];
+    if (buffered.features.length > 1) return buffered;
+    else if (buffered.features.length === 1) return buffered.features[0];
 };
 
-var bufferOp = function(feature, radius) {
-  var reader = new jsts.io.GeoJSONReader();
-  var geom = reader.read(JSON.stringify(feature.geometry));
-  var buffered = geom.buffer(radius);
-  var parser = new jsts.io.GeoJSONParser();
-  buffered = parser.write(buffered);
+function bufferOp(feature, radius) {
+    var reader = new jsts.io.GeoJSONReader();
+    var geom = reader.read(feature.geometry);
+    var buffered = geom.buffer(radius);
+    var writer = new jsts.io.GeoJSONWriter();
+    buffered = writer.write(buffered);
 
-  return {
-    type: 'Feature',
-    geometry: buffered,
-    properties: {}
-  };
-};
+    return {
+        type: 'Feature',
+        geometry: buffered,
+        properties: {}
+    };
+}

package.json

 {
   "name": "turf-buffer",
-  "version": "1.1.0",
+  "version": "3.0.0-canary.2f5f7167",
   "description": "turf buffer module",
   "main": "index.js",
   "scripts": {
-    "test": "node ./test/test.js",
-    "doc": "dox -r < index.js | doxme --readme > README.md"
+    "test": "node ./test/test.js"
   },
@@ -31,17 +30,14 @@ "repository": {
     "benchmark": "^1.0.0",
-    "dox": "^0.7.0",
-    "doxme": "^1.8.2",
     "glob": "^5.0.3",
     "tape": "^3.5.0",
-    "turf-distance": "^1.0.1",
-    "turf-extent": "^1.0.4",
-    "turf-point": "^2.0.1"
+    "turf-distance": "^3.0.0-canary.2f5f7167",
+    "turf-bbox": "^3.0.0-canary.2f5f7167",
+    "turf-helpers": "^3.0.0-canary.2f5f7167"
   },
   "dependencies": {
     "geojson-normalize": "0.0.0",
-    "jsts": "^0.15.0",
-    "turf-combine": "^1.0.2",
-    "turf-featurecollection": "^1.0.1",
-    "turf-polygon": "^1.0.3"
+    "jsts": "1.1.1",
+    "turf-combine": "^3.0.0-canary.2f5f7167",
+    "turf-helpers": "^3.0.0-canary.2f5f7167"
   }
 }

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Improved metrics

Dependency count

4

decreased by-20%

Dev dependency count

6

decreased by-25%

Number of medium maintenance alerts

0

decreased by-100%

Number of high supply chain risk alerts

0

decreased by-100%

Number of low supply chain risk alerts

1

decreased by-50%

Worsened metrics

Total package byte prevSize

6325

decreased by-91.17%

Number of package files

6

decreased by-76%

Lines of code

80

decreased by-55.56%

Number of low quality alerts

1

increased byInfinity%

Dependency changes

• + Addedturf-helpers@^3.0.0-canary.2f5f7167

• + Addedjsts@1.1.1(transitive)

• + Addedturf-combine@3.0.12(transitive)

• + Addedturf-helpers@3.0.12(transitive)

• + Addedturf-meta@3.0.12(transitive)

• - Removedturf-featurecollection@^1.0.1

• - Removedturf-polygon@^1.0.3

• - Removedjavascript.util@0.12.12(transitive)

• - Removedjsts@0.15.0(transitive)

• - Removedturf-combine@1.1.0(transitive)

• - Removedturf-featurecollection@1.0.1(transitive)

• - Removedturf-polygon@1.0.3(transitive)

• Updatedjsts@1.1.1

• Updatedturf-combine@^3.0.0-canary.2f5f7167