Make options complete in ol.format.Feature already

src/ol/format/featureformat.js

@@ -26,6 +26,27 @@ ol.format.Feature = function() {
 ol.format.Feature.prototype.getExtensions = goog.abstractMethod;
 
 
+/**
+ * Adds the data projection to the read options.
+ * @param {Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Options.
+ * @return {olx.format.ReadOptions|undefined} Options.
+ * @protected
+ */
+ol.format.Feature.prototype.getReadOptions = function(
+    source, opt_options) {
+  var options;
+  if (goog.isDef(opt_options)) {
+    options = {
+      dataProjection: goog.isDef(opt_options.dataProjection) ?
+          opt_options.dataProjection : this.readProjection(source),
+      featureProjection: opt_options.featureProjection
+    };
+  }
+  return options;
+};
+
+
 /**
  * @return {ol.format.FormatType} Format.
  */
@@ -103,13 +124,14 @@ ol.format.Feature.prototype.writeGeometry = goog.abstractMethod;
 
 /**
  * @param {ol.geom.Geometry} geometry Geometry.
- * @param {boolean} write Set to true for writing, false for reading.
+ * @param {boolean} write Set to true for writing, false for reading. For
+ *     writing, the geometry will be cloned before transforming.
  * @param {(olx.format.WriteOptions|olx.format.ReadOptions)=} opt_options
  *     Options.
  * @return {ol.geom.Geometry} Transformed geometry.
  * @protected
  */
-ol.format.Feature.transformGeometry = function(
+ol.format.Feature.transformWithOptions = function(
     geometry, write, opt_options) {
   var featureProjection = goog.isDef(opt_options) ?
       ol.proj.get(opt_options.featureProjection) : null;

src/ol/format/geojsonformat.js

@@ -75,7 +75,7 @@ ol.format.GeoJSON.readGeometry_ = function(object, opt_options) {
   }
   var geometryReader = ol.format.GeoJSON.GEOMETRY_READERS_[object.type];
   goog.asserts.assert(goog.isDef(geometryReader));
-  return ol.format.Feature.transformGeometry(
+  return ol.format.Feature.transformWithOptions(
       geometryReader(object), false, opt_options);
 };
 
@@ -177,7 +177,7 @@ ol.format.GeoJSON.writeGeometry_ = function(geometry, opt_options) {
   var geometryWriter = ol.format.GeoJSON.GEOMETRY_WRITERS_[geometry.getType()];
   goog.asserts.assert(goog.isDef(geometryWriter));
   return geometryWriter(
-      ol.format.Feature.transformGeometry(geometry, true, opt_options));
+      ol.format.Feature.transformWithOptions(geometry, true, opt_options));
 };
 
 

src/ol/format/gmlformat.js

@@ -164,7 +164,7 @@ ol.format.GML.readGeometry = function(node, objectStack) {
   var geometry = ol.xml.pushParseAndPop(/** @type {ol.geom.Geometry} */(null),
       ol.format.GML.GEOMETRY_PARSERS_, node, objectStack);
   if (goog.isDefAndNotNull(geometry)) {
-    return ol.format.Feature.transformGeometry(geometry, false, context);
+    return ol.format.Feature.transformWithOptions(geometry, false, context);
   } else {
     return undefined;
   }
@@ -1040,12 +1040,8 @@ ol.format.GML.RING_PARSERS_ = {
  * @inheritDoc
  */
 ol.format.GML.prototype.readGeometryFromNode = function(node, opt_options) {
-  var obj = {};
-  if (goog.isDef(opt_options)) {
-    goog.object.extend(obj, opt_options);
-    //FIXME Get dataProjection from data
-  }
-  var geometry = ol.format.GML.readGeometry(node, [obj]);
+  var geometry = ol.format.GML.readGeometry(node,
+      [this.getReadOptions(node, goog.isDef(opt_options) ? opt_options : {})]);
   return (goog.isDef(geometry) ? geometry : null);
 };
 
@@ -1071,13 +1067,21 @@ ol.format.GML.prototype.readFeaturesFromNode = function(node, opt_options) {
     'featureNS': this.featureNS_
   };
   if (goog.isDef(opt_options)) {
-    goog.object.extend(options, opt_options);
-    //FIXME Get dataProjection from data
+    goog.object.extend(options, this.getReadOptions(node, opt_options));
   }
   return ol.format.GML.readFeatures_(node, [options]);
 };
 
 
+/**
+ * @inheritDoc
+ */
+ol.format.GML.prototype.readProjectionFromNode = function(node) {
+  //TODO read this from data
+  return ol.proj.get(this.srsName_);
+};
+
+
 /**
  * @param {Node} node Node.
  * @param {ol.geom.Point} value Point geometry.
@@ -1455,11 +1459,21 @@ ol.format.GML.writeGeometry = function(node, geometry, objectStack) {
   goog.asserts.assert(goog.isObject(context));
   var item = goog.object.clone(context);
   item.node = node;
+  var value;
+  if (goog.isArray(geometry)) {
+    if (goog.isDef(context.dataProjection)) {
+      value = ol.proj.transformExtent(
+          geometry, context.featureProjection, context.dataProjection);
+    } else {
+      value = geometry;
+    }
+  } else {
+    goog.asserts.assertInstanceof(geometry, ol.geom.Geometry);
+    value = ol.format.Feature.transformWithOptions(geometry, true, context);
+  }
   ol.xml.pushSerializeAndPop(/** @type {ol.xml.NodeStackItem} */
       (item), ol.format.GML.GEOMETRY_SERIALIZERS_,
-      ol.format.GML.GEOMETRY_NODE_FACTORY_,
-      [ol.format.Feature.transformGeometry(geometry, true, context)],
-      objectStack);
+      ol.format.GML.GEOMETRY_NODE_FACTORY_, [value], objectStack);
 };
 
 

src/ol/format/jsonfeatureformat.js

@@ -46,26 +46,6 @@ ol.format.JSONFeature.prototype.getObject_ = function(source) {
 };
 
 
-/**
- * Adds the data projection to the read options.
- * @param {Object} obj Data object.
- * @param {olx.format.ReadOptions=} opt_options Options.
- * @return {olx.format.ReadOptions|undefined} Options.
- * @private
- */
-ol.format.JSONFeature.prototype.getReadOptions_ = function(obj, opt_options) {
-  var options;
-  if (goog.isDef(opt_options)) {
-    options = {
-      dataProjection: goog.isDef(opt_options.dataProjection) ?
-          opt_options.dataProjection : this.readProjectionFromObject(obj),
-      featureProjection: opt_options.featureProjection
-    };
-  }
-  return options;
-};
-
-
 /**
  * @inheritDoc
  */
@@ -78,9 +58,8 @@ ol.format.JSONFeature.prototype.getType = function() {
  * @inheritDoc
  */
 ol.format.JSONFeature.prototype.readFeature = function(source, opt_options) {
-  var obj = this.getObject_(source);
   return this.readFeatureFromObject(
-      obj, this.getReadOptions_(obj, opt_options));
+      this.getObject_(source), this.getReadOptions(source, opt_options));
 };
 
 
@@ -88,9 +67,8 @@ ol.format.JSONFeature.prototype.readFeature = function(source, opt_options) {
  * @inheritDoc
  */
 ol.format.JSONFeature.prototype.readFeatures = function(source, opt_options) {
-  var obj = this.getObject_(source);
   return this.readFeaturesFromObject(
-      obj, this.getReadOptions_(obj, opt_options));
+      this.getObject_(source), this.getReadOptions(source, opt_options));
 };
 
 
@@ -116,9 +94,8 @@ ol.format.JSONFeature.prototype.readFeaturesFromObject = goog.abstractMethod;
  * @inheritDoc
  */
 ol.format.JSONFeature.prototype.readGeometry = function(source, opt_options) {
-  var obj = this.getObject_(source);
   return this.readGeometryFromObject(
-      obj, this.getReadOptions_(obj, opt_options));
+      this.getObject_(source), this.getReadOptions(source, opt_options));
 };
 
 

test/spec/ol/format/gmlformat.test.js

@@ -35,7 +35,6 @@ describe('ol.format.GML', function() {
 
       it('can read, transform and write a point geometry', function() {
         var config = {
-          dataProjection: 'CRS:84',
           featureProjection: 'EPSG:3857'
         };
         var text =
@@ -48,6 +47,7 @@ describe('ol.format.GML', function() {
         var coordinates = g.getCoordinates();
         expect(coordinates.splice(0, 2)).to.eql(
             ol.proj.transform([1, 2], 'CRS:84', 'EPSG:3857'));
+        config.dataProjection = 'CRS:84';
         var serialized = format.writeGeometry(g, config);
         var pos = serialized.firstElementChild.firstElementChild.textContent;
         var coordinate = pos.split(' ');