Implement read/write transforms for ol.format.Polyline

src/ol/format/featureformat.js

@@ -146,3 +146,24 @@ ol.format.Feature.transformWithOptions = function(
     return geometry;
   }
 };
+
+
+/**
+ * @param {(olx.format.WriteOptions|olx.format.ReadOptions)=} opt_options
+ *     Options.
+ * @param {ol.proj.ProjectionLike} defaultDataProjection Default projection.
+ * @protected
+ * @return {(olx.format.WriteOptions|olx.format.ReadOptions)=} Updated options.
+ */
+ol.format.Feature.setDefaultDataProjection = function(
+    opt_options, defaultDataProjection) {
+  if (goog.isDef(opt_options)) {
+    if (!goog.isDef(opt_options.dataProjection)) {
+      opt_options = {
+        featureProjection: opt_options.featureProjection,
+        dataProjection: defaultDataProjection
+      };
+    }
+  }
+  return opt_options;
+};

src/ol/format/gpxformat.js

@@ -5,6 +5,7 @@ goog.require('goog.asserts');
 goog.require('goog.dom.NodeType');
 goog.require('goog.object');
 goog.require('ol.Feature');
+goog.require('ol.format.Feature');
 goog.require('ol.format.XMLFeature');
 goog.require('ol.format.XSD');
 goog.require('ol.geom.LineString');
@@ -866,7 +867,7 @@ ol.format.GPX.prototype.writeFeaturesNode = function(features, opt_options) {
   var gpx = ol.xml.createElementNS('http://www.topografix.com/GPX/1/1', 'gpx');
 
   // for convenience set a default dataProjection
-  opt_options = ol.format.XMLFeature.setDefaultDataProjection(
+  opt_options = ol.format.Feature.setDefaultDataProjection(
       opt_options, this.readProjectionFromDocument(null));
   features = ol.format.XMLFeature.transformFeaturesWithOptions(
       features, true, opt_options);

src/ol/format/kmlformat.js

@@ -16,6 +16,7 @@ goog.require('ol.Feature');
 goog.require('ol.array');
 goog.require('ol.color');
 goog.require('ol.feature');
+goog.require('ol.format.Feature');
 goog.require('ol.format.XMLFeature');
 goog.require('ol.format.XSD');
 goog.require('ol.geom.Geometry');
@@ -2523,7 +2524,7 @@ ol.format.KML.prototype.writeFeaturesNode = function(features, opt_options) {
       ol.format.KML.SCHEMA_LOCATION_);
 
   // for convenience set a default dataProjection
-  opt_options = ol.format.XMLFeature.setDefaultDataProjection(
+  opt_options = ol.format.Feature.setDefaultDataProjection(
       opt_options, this.readProjectionFromDocument(null));
   features = ol.format.XMLFeature.transformFeaturesWithOptions(
       features, true, opt_options);

src/ol/format/polylineformat.js

@@ -2,6 +2,7 @@ goog.provide('ol.format.Polyline');
 
 goog.require('goog.asserts');
 goog.require('ol.Feature');
+goog.require('ol.format.Feature');
 goog.require('ol.format.TextFeature');
 goog.require('ol.geom.LineString');
 goog.require('ol.geom.flat.inflate');
@@ -248,6 +249,7 @@ ol.format.Polyline.encodeUnsignedInteger = function(num) {
  *
  * @function
  * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
  * @return {ol.Feature} Feature.
  * @api
  */
@@ -257,8 +259,8 @@ ol.format.Polyline.prototype.readFeature;
 /**
  * @inheritDoc
  */
-ol.format.Polyline.prototype.readFeatureFromText = function(text) {
-  var geometry = this.readGeometryFromText(text);
+ol.format.Polyline.prototype.readFeatureFromText = function(text, opt_options) {
+  var geometry = this.readGeometryFromText(text, opt_options);
   return new ol.Feature(geometry);
 };
 
@@ -269,6 +271,7 @@ ol.format.Polyline.prototype.readFeatureFromText = function(text) {
  *
  * @function
  * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
  * @return {Array.<ol.Feature>} Features.
  * @api
  */
@@ -278,8 +281,9 @@ ol.format.Polyline.prototype.readFeatures;
 /**
  * @inheritDoc
  */
-ol.format.Polyline.prototype.readFeaturesFromText = function(text) {
-  var feature = this.readFeatureFromText(text);
+ol.format.Polyline.prototype.readFeaturesFromText =
+    function(text, opt_options) {
+  var feature = this.readFeatureFromText(text, opt_options);
   return [feature];
 };
 
@@ -289,6 +293,7 @@ ol.format.Polyline.prototype.readFeaturesFromText = function(text) {
  *
  * @function
  * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
  * @return {ol.geom.Geometry} Geometry.
  * @api
  */
@@ -298,11 +303,18 @@ ol.format.Polyline.prototype.readGeometry;
 /**
  * @inheritDoc
  */
-ol.format.Polyline.prototype.readGeometryFromText = function(text) {
+ol.format.Polyline.prototype.readGeometryFromText =
+    function(text, opt_options) {
   var flatCoordinates = ol.format.Polyline.decodeDeltas(text, 2, this.factor_);
   var coordinates = ol.geom.flat.inflate.coordinates(
       flatCoordinates, 0, flatCoordinates.length, 2);
-  return new ol.geom.LineString(coordinates);
+
+  // for convenience set a default dataProjection
+  opt_options = ol.format.Feature.setDefaultDataProjection(
+      opt_options, this.readProjectionFromText(null));
+
+  return ol.format.Feature.transformWithOptions(
+      new ol.geom.LineString(coordinates), false, false, opt_options);
 };
 
 
@@ -328,10 +340,10 @@ ol.format.Polyline.prototype.readProjectionFromText = function(text) {
 /**
  * @inheritDoc
  */
-ol.format.Polyline.prototype.writeFeatureText = function(feature) {
+ol.format.Polyline.prototype.writeFeatureText = function(feature, opt_options) {
   var geometry = feature.getGeometry();
   if (goog.isDefAndNotNull(geometry)) {
-    return this.writeGeometryText(geometry);
+    return this.writeGeometryText(geometry, opt_options);
   } else {
     goog.asserts.fail();
     return '';
@@ -342,9 +354,10 @@ ol.format.Polyline.prototype.writeFeatureText = function(feature) {
 /**
  * @inheritDoc
  */
-ol.format.Polyline.prototype.writeFeaturesText = function(features) {
+ol.format.Polyline.prototype.writeFeaturesText =
+    function(features, opt_options) {
   goog.asserts.assert(features.length == 1);
-  return this.writeFeatureText(features[0]);
+  return this.writeFeatureText(features[0], opt_options);
 };
 
 
@@ -353,6 +366,7 @@ ol.format.Polyline.prototype.writeFeaturesText = function(features) {
  *
  * @function
  * @param {ol.geom.Geometry} geometry Geometry.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
  * @return {string} Geometry.
  * @api
  */
@@ -362,8 +376,14 @@ ol.format.Polyline.prototype.writeGeometry;
 /**
  * @inheritDoc
  */
-ol.format.Polyline.prototype.writeGeometryText = function(geometry) {
+ol.format.Polyline.prototype.writeGeometryText =
+    function(geometry, opt_options) {
   goog.asserts.assertInstanceof(geometry, ol.geom.LineString);
+  // for convenience set a default dataProjection
+  opt_options = ol.format.Feature.setDefaultDataProjection(
+      opt_options, this.readProjectionFromText(null));
+  geometry = ol.format.Feature.transformWithOptions(
+      geometry, true, true, opt_options);
   var flatCoordinates = geometry.getFlatCoordinates();
   var stride = geometry.getStride();
   return ol.format.Polyline.encodeDeltas(flatCoordinates, stride, this.factor_);

src/ol/format/xmlfeatureformat.js

@@ -277,24 +277,3 @@ ol.format.XMLFeature.transformFeaturesWithOptions = function(
   }
   return features;
 };
-
-
-/**
- * @param {(olx.format.WriteOptions|olx.format.ReadOptions)=} opt_options
- *     Options.
- * @param {ol.proj.ProjectionLike} defaultDataProjection Default projection.
- * @protected
- * @return {(olx.format.WriteOptions|olx.format.ReadOptions)=} Updated options.
- */
-ol.format.XMLFeature.setDefaultDataProjection = function(
-    opt_options, defaultDataProjection) {
-  if (goog.isDef(opt_options)) {
-    if (!goog.isDef(opt_options.dataProjection)) {
-      opt_options = {
-        featureProjection: opt_options.featureProjection,
-        dataProjection: defaultDataProjection
-      };
-    }
-  }
-  return opt_options;
-};

test/spec/ol/format/polylineformat.test.js

@@ -11,13 +11,17 @@ describe('ol.format.Polyline', function() {
 
   function resetTestingData() {
     format = new ol.format.Polyline();
-    points = [[38.50000, -120.20000],
-              [40.70000, -120.95000],
-              [43.25200, -126.45300]];
-    flatPoints = [38.50000, -120.20000,
-                  40.70000, -120.95000,
-                  43.25200, -126.45300];
-    encodedFlatPoints = '_p~iF~ps|U_ulLnnqC_mqNvxq`@';
+    points = [[-120.20000, 38.50000],
+              [-120.95000, 40.70000],
+              [-126.45300, 43.25200]];
+    flatPoints = [-120.20000, 38.50000,
+                  -120.95000, 40.70000,
+                  -126.45300, 43.25200];
+    encodedFlatPoints = '~ps|U_p~iFnnqC_ulLvxq`@_mqN';
+    points3857 = [
+      ol.proj.transform([-120.20000, 38.50000], 'EPSG:4326', 'EPSG:3857'),
+      ol.proj.transform([-120.95000, 40.70000], 'EPSG:4326', 'EPSG:3857'),
+      ol.proj.transform([-126.45300, 43.25200], 'EPSG:4326', 'EPSG:3857')];
 
     floats = [0.00, 0.15, -0.01, -0.16, 0.16, 0.01];
     smallFloats = [0.00000, 0.00015, -0.00001, -0.00016, 0.00016, 0.00001];
@@ -253,6 +257,16 @@ describe('ol.format.Polyline', function() {
       expect(geometry.getFlatCoordinates()).to.eql(flatPoints);
     });
 
+    it('transforms and returns the expected feature', function() {
+      var feature = format.readFeature(encodedFlatPoints, {
+        featureProjection: 'EPSG:3857'
+      });
+      expect(feature).to.be.an(ol.Feature);
+      var geometry = feature.getGeometry();
+      expect(geometry).to.be.an(ol.geom.LineString);
+      expect(geometry.getCoordinates()).to.eql(points3857);
+    });
+
   });
 
   describe('#readFeatures', function() {
@@ -268,6 +282,19 @@ describe('ol.format.Polyline', function() {
       expect(geometry.getFlatCoordinates()).to.eql(flatPoints);
     });
 
+    it('transforms and returns the expected features', function() {
+      var features = format.readFeatures(encodedFlatPoints, {
+        featureProjection: 'EPSG:3857'
+      });
+      expect(features).to.be.an(Array);
+      expect(features).to.have.length(1);
+      var feature = features[0];
+      expect(feature).to.be.an(ol.Feature);
+      var geometry = feature.getGeometry();
+      expect(geometry).to.be.an(ol.geom.LineString);
+      expect(geometry.getCoordinates()).to.eql(points3857);
+    });
+
   });
 
   describe('#readGeometry', function() {
@@ -278,6 +305,14 @@ describe('ol.format.Polyline', function() {
       expect(geometry.getFlatCoordinates()).to.eql(flatPoints);
     });
 
+    it('transforms and returns the expected geometry', function() {
+      var geometry = format.readGeometry(encodedFlatPoints, {
+        featureProjection: 'EPSG:3857'
+      });
+      expect(geometry).to.be.an(ol.geom.LineString);
+      expect(geometry.getCoordinates()).to.eql(points3857);
+    });
+
   });
 
   describe('#readProjection', function() {
@@ -296,6 +331,13 @@ describe('ol.format.Polyline', function() {
       expect(format.writeFeature(feature)).to.be(encodedFlatPoints);
     });
 
+    it('transforms and returns the expected text', function() {
+      var feature = new ol.Feature(new ol.geom.LineString(points3857));
+      expect(format.writeFeature(feature, {
+        featureProjection: 'EPSG:3857'
+      })).to.be(encodedFlatPoints);
+    });
+
   });
 
   describe('#writeFeature', function() {
@@ -305,6 +347,13 @@ describe('ol.format.Polyline', function() {
       expect(format.writeFeatures(features)).to.be(encodedFlatPoints);
     });
 
+    it('transforms and returns the expected text', function() {
+      var features = [new ol.Feature(new ol.geom.LineString(points3857))];
+      expect(format.writeFeatures(features, {
+        featureProjection: 'EPSG:3857'
+      })).to.be(encodedFlatPoints);
+    });
+
   });
 
   describe('#writeGeometry', function() {
@@ -314,6 +363,13 @@ describe('ol.format.Polyline', function() {
       expect(format.writeGeometry(geometry)).to.be(encodedFlatPoints);
     });
 
+    it('transforms and returns the expected text', function() {
+      var geometry = new ol.geom.LineString(points3857);
+      expect(format.writeGeometry(geometry, {
+        featureProjection: 'EPSG:3857'
+      })).to.be(encodedFlatPoints);
+    });
+
   });
 
 });