Merge pull request #2407 from ahocevar/format-projection

Options for feature readers and writers to support transforms
2014-08-21 17:58:10 +02:00
parent 15a516fd62 939e167c0b
commit a231086a8b
29 changed files with 1282 additions and 218 deletions
--- a/src/ol/format/featureformat.js
+++ b/src/ol/format/featureformat.js
@@ -1,6 +1,8 @@
 goog.provide('ol.format.Feature');

-goog.require('goog.functions');
+goog.require('goog.array');
+goog.require('ol.geom.Geometry');
+goog.require('ol.proj');



@@ -16,6 +18,12 @@ goog.require('goog.functions');
 * @constructor
 */
 ol.format.Feature = function() {
+
+  /**
+   * @protected
+   * @type {ol.proj.Projection}
+   */
+  this.defaultDataProjection = null;
 };


@@ -25,6 +33,50 @@ 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 this.adaptOptions(options);
+};
+
+
+/**
+ * Sets the `defaultDataProjection` on the options, if no `dataProjection`
+ * is set.
+ * @param {olx.format.WriteOptions|olx.format.ReadOptions|undefined} options
+ *     Options.
+ * @protected
+ * @return {olx.format.WriteOptions|olx.format.ReadOptions|undefined}
+ *     Updated options.
+ */
+ol.format.Feature.prototype.adaptOptions = function(
+    options) {
+  var updatedOptions;
+  if (goog.isDef(options)) {
+    updatedOptions = {
+      featureProjection: options.featureProjection,
+      dataProjection: goog.isDefAndNotNull(options.dataProjection) ?
+          options.dataProjection : this.defaultDataProjection
+    };
+  }
+  return updatedOptions;
+};
+
+
 /**
 * @return {ol.format.FormatType} Format.
 */
@@ -35,6 +87,7 @@ ol.format.Feature.prototype.getType = goog.abstractMethod;
 * Read a single feature from a source.
 *
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.Feature} Feature.
 */
 ol.format.Feature.prototype.readFeature = goog.abstractMethod;
@@ -44,6 +97,7 @@ ol.format.Feature.prototype.readFeature = goog.abstractMethod;
 * Read all features from a source.
 *
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {Array.<ol.Feature>} Features.
 */
 ol.format.Feature.prototype.readFeatures = goog.abstractMethod;
@@ -53,6 +107,7 @@ ol.format.Feature.prototype.readFeatures = goog.abstractMethod;
 * Read a single geometry from a source.
 *
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.geom.Geometry} Geometry.
 */
 ol.format.Feature.prototype.readGeometry = goog.abstractMethod;
@@ -71,6 +126,7 @@ ol.format.Feature.prototype.readProjection = goog.abstractMethod;
 * Encode a feature in this format.
 *
 * @param {ol.Feature} feature Feature.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @return {ArrayBuffer|Node|Object|string} Result.
 */
 ol.format.Feature.prototype.writeFeature = goog.abstractMethod;
@@ -80,6 +136,7 @@ ol.format.Feature.prototype.writeFeature = goog.abstractMethod;
 * Encode an array of features in this format.
 *
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @return {ArrayBuffer|Node|Object|string} Result.
 */
 ol.format.Feature.prototype.writeFeatures = goog.abstractMethod;
@@ -89,6 +146,41 @@ ol.format.Feature.prototype.writeFeatures = goog.abstractMethod;
 * Write a single geometry in this format.
 *
 * @param {ol.geom.Geometry} geometry Geometry.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @return {ArrayBuffer|Node|Object|string} Node.
 */
 ol.format.Feature.prototype.writeGeometry = goog.abstractMethod;
+
+
+/**
+ * @param {ol.geom.Geometry|ol.Extent} geometry Geometry.
+ * @param {boolean} write Set to true for writing, false for reading.
+ * @param {(olx.format.WriteOptions|olx.format.ReadOptions)=} opt_options
+ *     Options.
+ * @return {ol.geom.Geometry|ol.Extent} Transformed geometry.
+ * @protected
+ */
+ol.format.Feature.transformWithOptions = function(
+    geometry, write, opt_options) {
+  var featureProjection = goog.isDef(opt_options) ?
+      ol.proj.get(opt_options.featureProjection) : null;
+  var dataProjection = goog.isDef(opt_options) ?
+      ol.proj.get(opt_options.dataProjection) : null;
+  if (!goog.isNull(featureProjection) && !goog.isNull(dataProjection) &&
+      !ol.proj.equivalent(featureProjection, dataProjection)) {
+    if (geometry instanceof ol.geom.Geometry) {
+      return (write ? geometry.clone() : geometry).transform(
+          write ? featureProjection : dataProjection,
+          write ? dataProjection : featureProjection);
+    } else {
+      // FIXME this is necessary because ol.format.GML treats extents
+      // as geometries
+      return ol.proj.transformExtent(
+          write ? goog.array.clone(geometry) : geometry,
+          write ? featureProjection : dataProjection,
+          write ? dataProjection : featureProjection);
+    }
+  } else {
+    return geometry;
+  }
+};
--- a/src/ol/format/geojsonformat.js
+++ b/src/ol/format/geojsonformat.js
@@ -7,6 +7,7 @@ goog.require('goog.array');
 goog.require('goog.asserts');
 goog.require('goog.object');
 goog.require('ol.Feature');
+goog.require('ol.format.Feature');
 goog.require('ol.format.JSONFeature');
 goog.require('ol.geom.GeometryCollection');
 goog.require('ol.geom.GeometryType');
@@ -36,11 +37,11 @@ ol.format.GeoJSON = function(opt_options) {
  goog.base(this);

  /**
-   * @private
-   * @type {ol.proj.Projection}
+   * @inheritDoc
   */
-  this.defaultProjection_ = ol.proj.get(options.defaultProjection ?
-      options.defaultProjection : 'EPSG:4326');
+  this.defaultDataProjection = ol.proj.get(
+      goog.isDefAndNotNull(options.defaultDataProjection) ?
+          options.defaultDataProjection : 'EPSG:4326');


  /**
@@ -64,28 +65,39 @@ ol.format.GeoJSON.EXTENSIONS_ = ['.geojson'];

 /**
 * @param {GeoJSONObject} object Object.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @private
 * @return {ol.geom.Geometry} Geometry.
 */
-ol.format.GeoJSON.readGeometry_ = function(object) {
+ol.format.GeoJSON.readGeometry_ = function(object, opt_options) {
  if (goog.isNull(object)) {
    return null;
  }
  var geometryReader = ol.format.GeoJSON.GEOMETRY_READERS_[object.type];
  goog.asserts.assert(goog.isDef(geometryReader));
-  return geometryReader(object);
+  return /** @type {ol.geom.Geometry} */ (
+      ol.format.Feature.transformWithOptions(
+          geometryReader(object), false, opt_options));
 };


 /**
 * @param {GeoJSONGeometryCollection} object Object.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @private
 * @return {ol.geom.GeometryCollection} Geometry collection.
 */
-ol.format.GeoJSON.readGeometryCollectionGeometry_ = function(object) {
+ol.format.GeoJSON.readGeometryCollectionGeometry_ = function(
+    object, opt_options) {
  goog.asserts.assert(object.type == 'GeometryCollection');
-  var geometries = goog.array.map(
-      object.geometries, ol.format.GeoJSON.readGeometry_);
+  var geometries = goog.array.map(object.geometries,
+      /**
+       * @param {GeoJSONObject} geometry Geometry.
+       * @return {ol.geom.Geometry} geometry Geometry.
+       */
+      function(geometry) {
+        return ol.format.GeoJSON.readGeometry_(geometry, opt_options);
+      });
  return new ol.geom.GeometryCollection(geometries);
 };

@@ -158,13 +170,15 @@ ol.format.GeoJSON.readPolygonGeometry_ = function(object) {

 /**
 * @param {ol.geom.Geometry} geometry Geometry.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @private
 * @return {GeoJSONGeometry|GeoJSONGeometryCollection} GeoJSON geometry.
 */
-ol.format.GeoJSON.writeGeometry_ = function(geometry) {
+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(geometry);
+  return geometryWriter(/** @type {ol.geom.Geometry} */ (
+      ol.format.Feature.transformWithOptions(geometry, true, opt_options)));
 };


@@ -183,13 +197,17 @@ ol.format.GeoJSON.writeEmptyGeometryCollectionGeometry_ = function(geometry) {

 /**
 * @param {ol.geom.Geometry} geometry Geometry.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @private
 * @return {GeoJSONGeometryCollection} GeoJSON geometry collection.
 */
-ol.format.GeoJSON.writeGeometryCollectionGeometry_ = function(geometry) {
+ol.format.GeoJSON.writeGeometryCollectionGeometry_ = function(
+    geometry, opt_options) {
  goog.asserts.assertInstanceof(geometry, ol.geom.GeometryCollection);
  var geometries = goog.array.map(
-      geometry.getGeometriesArray(), ol.format.GeoJSON.writeGeometry_);
+      geometry.getGeometriesArray(), function(geometry) {
+        return ol.format.GeoJSON.writeGeometry_(geometry, opt_options);
+      });
  return /** @type {GeoJSONGeometryCollection} */ ({
    'type': 'GeometryCollection',
    'geometries': geometries
@@ -330,6 +348,7 @@ ol.format.GeoJSON.prototype.getExtensions = function() {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.Feature} Feature.
 * @api
 */
@@ -342,6 +361,7 @@ ol.format.GeoJSON.prototype.readFeature;
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {Array.<ol.Feature>} Features.
 * @api
 */
@@ -351,10 +371,12 @@ ol.format.GeoJSON.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.GeoJSON.prototype.readFeatureFromObject = function(object) {
+ol.format.GeoJSON.prototype.readFeatureFromObject = function(
+    object, opt_options) {
  var geoJSONFeature = /** @type {GeoJSONFeature} */ (object);
  goog.asserts.assert(geoJSONFeature.type == 'Feature');
-  var geometry = ol.format.GeoJSON.readGeometry_(geoJSONFeature.geometry);
+  var geometry = ol.format.GeoJSON.readGeometry_(geoJSONFeature.geometry,
+      opt_options);
  var feature = new ol.Feature();
  if (goog.isDef(this.geometryName_)) {
    feature.setGeometryName(this.geometryName_);
@@ -373,10 +395,11 @@ ol.format.GeoJSON.prototype.readFeatureFromObject = function(object) {
 /**
 * @inheritDoc
 */
-ol.format.GeoJSON.prototype.readFeaturesFromObject = function(object) {
+ol.format.GeoJSON.prototype.readFeaturesFromObject = function(
+    object, opt_options) {
  var geoJSONObject = /** @type {GeoJSONObject} */ (object);
  if (geoJSONObject.type == 'Feature') {
-    return [this.readFeatureFromObject(object)];
+    return [this.readFeatureFromObject(object, opt_options)];
  } else if (geoJSONObject.type == 'FeatureCollection') {
    var geoJSONFeatureCollection = /** @type {GeoJSONFeatureCollection} */
        (object);
@@ -385,7 +408,8 @@ ol.format.GeoJSON.prototype.readFeaturesFromObject = function(object) {
    var geoJSONFeatures = geoJSONFeatureCollection.features;
    var i, ii;
    for (i = 0, ii = geoJSONFeatures.length; i < ii; ++i) {
-      features.push(this.readFeatureFromObject(geoJSONFeatures[i]));
+      features.push(this.readFeatureFromObject(geoJSONFeatures[i],
+          opt_options));
    }
    return features;
  } else {
@@ -400,6 +424,7 @@ ol.format.GeoJSON.prototype.readFeaturesFromObject = function(object) {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.geom.Geometry} Geometry.
 * @api
 */
@@ -409,9 +434,10 @@ ol.format.GeoJSON.prototype.readGeometry;
 /**
 * @inheritDoc
 */
-ol.format.GeoJSON.prototype.readGeometryFromObject = function(object) {
+ol.format.GeoJSON.prototype.readGeometryFromObject = function(
+    object, opt_options) {
  return ol.format.GeoJSON.readGeometry_(
-      /** @type {GeoJSONGeometry} */ (object));
+      /** @type {GeoJSONGeometry} */ (object), opt_options);
 };


@@ -446,7 +472,7 @@ ol.format.GeoJSON.prototype.readProjectionFromObject = function(object) {
      return null;
    }
  } else {
-    return this.defaultProjection_;
+    return this.defaultDataProjection;
  }
 };

@@ -456,6 +482,7 @@ ol.format.GeoJSON.prototype.readProjectionFromObject = function(object) {
 *
 * @function
 * @param {ol.Feature} feature Feature.
+ * @param {olx.format.WriteOptions} options Write options.
 * @return {GeoJSONFeature} GeoJSON.
 * @api
 */
@@ -465,7 +492,8 @@ ol.format.GeoJSON.prototype.writeFeature;
 /**
 * @inheritDoc
 */
-ol.format.GeoJSON.prototype.writeFeatureObject = function(feature) {
+ol.format.GeoJSON.prototype.writeFeatureObject = function(
+    feature, opt_options) {
  var object = {
    'type': 'Feature'
  };
@@ -476,7 +504,8 @@ ol.format.GeoJSON.prototype.writeFeatureObject = function(feature) {
  var geometry = feature.getGeometry();
  if (goog.isDefAndNotNull(geometry)) {
    goog.object.set(
-        object, 'geometry', ol.format.GeoJSON.writeGeometry_(geometry));
+        object, 'geometry',
+        ol.format.GeoJSON.writeGeometry_(geometry, opt_options));
  }
  var properties = feature.getProperties();
  goog.object.remove(properties, 'geometry');
@@ -492,6 +521,7 @@ ol.format.GeoJSON.prototype.writeFeatureObject = function(feature) {
 *
 * @function
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions} options Write options.
 * @return {GeoJSONObject} GeoJSON.
 * @api
 */
@@ -501,11 +531,12 @@ ol.format.GeoJSON.prototype.writeFeatures;
 /**
 * @inheritDoc
 */
-ol.format.GeoJSON.prototype.writeFeaturesObject = function(features) {
+ol.format.GeoJSON.prototype.writeFeaturesObject =
+    function(features, opt_options) {
  var objects = [];
  var i, ii;
  for (i = 0, ii = features.length; i < ii; ++i) {
-    objects.push(this.writeFeatureObject(features[i]));
+    objects.push(this.writeFeatureObject(features[i], opt_options));
  }
  return /** @type {GeoJSONFeatureCollection} */ ({
    'type': 'FeatureCollection',
@@ -519,6 +550,7 @@ ol.format.GeoJSON.prototype.writeFeaturesObject = function(features) {
 *
 * @function
 * @param {ol.geom.Geometry} geometry Geometry.
+ * @param {olx.format.WriteOptions} options Write options.
 * @return {GeoJSONGeometry|GeoJSONGeometryCollection} GeoJSON.
 * @api
 */
--- a/src/ol/format/gmlformat.js
+++ b/src/ol/format/gmlformat.js
@@ -1,3 +1,6 @@
+// FIXME Envelopes should not be treated as geometries! readEnvelope_ is part
+// of GEOMETRY_PARSERS_ and methods using GEOMETRY_PARSERS_ do not expect
+// envelopes/extents, only geometries!
 goog.provide('ol.format.GML');

 goog.require('goog.asserts');
@@ -8,6 +11,7 @@ goog.require('goog.string');
 goog.require('ol.Feature');
 goog.require('ol.array');
 goog.require('ol.extent');
+goog.require('ol.format.Feature');
 goog.require('ol.format.XMLFeature');
 goog.require('ol.format.XSD');
 goog.require('ol.geom.Geometry');
@@ -162,7 +166,8 @@ 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 geometry;
+    return /** @type {ol.geom.Geometry} */ (
+        ol.format.Feature.transformWithOptions(geometry, false, context));
  } else {
    return undefined;
  }
@@ -1037,9 +1042,10 @@ ol.format.GML.RING_PARSERS_ = {
 /**
 * @inheritDoc
 */
-ol.format.GML.prototype.readGeometryFromNode = function(node) {
-  var geometry = ol.format.GML.readGeometry(node, [{}]);
-  return (goog.isDef(geometry)) ? geometry : null;
+ol.format.GML.prototype.readGeometryFromNode = function(node, opt_options) {
+  var geometry = ol.format.GML.readGeometry(node,
+      [this.getReadOptions(node, goog.isDef(opt_options) ? opt_options : {})]);
+  return (goog.isDef(geometry) ? geometry : null);
 };


@@ -1048,6 +1054,7 @@ ol.format.GML.prototype.readGeometryFromNode = function(node) {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Options.
 * @return {Array.<ol.Feature>} Features.
 * @api
 */
@@ -1057,12 +1064,24 @@ ol.format.GML.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.GML.prototype.readFeaturesFromNode = function(node) {
-  var objectStack = [{
+ol.format.GML.prototype.readFeaturesFromNode = function(node, opt_options) {
+  var options = {
    'featureType': this.featureType_,
    'featureNS': this.featureNS_
-  }];
-  return ol.format.GML.readFeatures_(node, objectStack);
+  };
+  if (goog.isDef(opt_options)) {
+    goog.object.extend(options, this.getReadOptions(node, opt_options));
+  }
+  return ol.format.GML.readFeatures_(node, [options]);
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.GML.prototype.readProjectionFromNode = function(node) {
+  return ol.proj.get(goog.isDef(this.srsName_) ? this.srsName_ :
+      node.firstElementChild.getAttribute('srsName'));
 };


@@ -1443,9 +1462,22 @@ 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_, [geometry], objectStack);
+      ol.format.GML.GEOMETRY_NODE_FACTORY_, [value], objectStack);
 };


@@ -1673,14 +1705,15 @@ ol.format.GML.GEOMETRY_NODE_FACTORY_ = function(value, objectStack,
 /**
 * @inheritDoc
 */
-ol.format.GML.prototype.writeGeometryNode = function(geometry) {
+ol.format.GML.prototype.writeGeometryNode = function(geometry, opt_options) {
  var geom = ol.xml.createElementNS('http://www.opengis.net/gml', 'geom');
  var context = {node: geom, srsName: this.srsName_,
    curve: this.curve_, surface: this.surface_,
    multiSurface: this.multiSurface_, multiCurve: this.multiCurve_};
-  ol.xml.pushSerializeAndPop(/** @type {ol.xml.NodeStackItem} */
-      (context), ol.format.GML.GEOMETRY_SERIALIZERS_,
-      ol.format.GML.GEOMETRY_NODE_FACTORY_, [geometry], []);
+  if (goog.isDef(opt_options)) {
+    goog.object.extend(context, opt_options);
+  }
+  ol.format.GML.writeGeometry(geom, geometry, [context]);
  return geom;
 };

@@ -1690,6 +1723,7 @@ ol.format.GML.prototype.writeGeometryNode = function(geometry) {
 *
 * @function
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions=} opt_options Options.
 * @return {Node} Result.
 * @api
 */
@@ -1699,7 +1733,7 @@ ol.format.GML.prototype.writeFeatures;
 /**
 * @inheritDoc
 */
-ol.format.GML.prototype.writeFeaturesNode = function(features) {
+ol.format.GML.prototype.writeFeaturesNode = function(features, opt_options) {
  var node = ol.xml.createElementNS('http://www.opengis.net/gml',
      'featureMembers');
  ol.xml.setAttributeNS(node, 'http://www.w3.org/2001/XMLSchema-instance',
@@ -1713,6 +1747,9 @@ ol.format.GML.prototype.writeFeaturesNode = function(features) {
    featureNS: this.featureNS_,
    featureType: this.featureType_
  };
+  if (goog.isDef(opt_options)) {
+    goog.object.extend(context, opt_options);
+  }
  ol.format.GML.writeFeatureMembers_(node, features, [context]);
  return node;
 };
--- a/src/ol/format/gpxformat.js
+++ b/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');
@@ -30,6 +31,11 @@ ol.format.GPX = function(opt_options) {

  goog.base(this);

+  /**
+   * @inheritDoc
+   */
+  this.defaultDataProjection = ol.proj.get('EPSG:4326');
+
  /**
   * @type {function(ol.Feature, Node)|undefined}
   * @private
@@ -175,6 +181,7 @@ ol.format.GPX.parseTrkSeg_ = function(node, objectStack) {
 ol.format.GPX.readRte_ = function(node, objectStack) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  goog.asserts.assert(node.localName == 'rte');
+  var options = /** @type {olx.format.ReadOptions} */ (objectStack[0]);
  var values = ol.xml.pushParseAndPop({
    'flatCoordinates': []
  }, ol.format.GPX.RTE_PARSERS_, node, objectStack);
@@ -186,6 +193,7 @@ ol.format.GPX.readRte_ = function(node, objectStack) {
  goog.object.remove(values, 'flatCoordinates');
  var geometry = new ol.geom.LineString(null);
  geometry.setFlatCoordinates(ol.geom.GeometryLayout.XYZM, flatCoordinates);
+  ol.format.Feature.transformWithOptions(geometry, false, options);
  var feature = new ol.Feature(geometry);
  feature.setProperties(values);
  return feature;
@@ -201,6 +209,7 @@ ol.format.GPX.readRte_ = function(node, objectStack) {
 ol.format.GPX.readTrk_ = function(node, objectStack) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  goog.asserts.assert(node.localName == 'trk');
+  var options = /** @type {olx.format.ReadOptions} */ (objectStack[0]);
  var values = ol.xml.pushParseAndPop({
    'flatCoordinates': [],
    'ends': []
@@ -216,6 +225,7 @@ ol.format.GPX.readTrk_ = function(node, objectStack) {
  var geometry = new ol.geom.MultiLineString(null);
  geometry.setFlatCoordinates(
      ol.geom.GeometryLayout.XYZM, flatCoordinates, ends);
+  ol.format.Feature.transformWithOptions(geometry, false, options);
  var feature = new ol.Feature(geometry);
  feature.setProperties(values);
  return feature;
@@ -231,6 +241,7 @@ ol.format.GPX.readTrk_ = function(node, objectStack) {
 ol.format.GPX.readWpt_ = function(node, objectStack) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  goog.asserts.assert(node.localName == 'wpt');
+  var options = /** @type {olx.format.ReadOptions} */ (objectStack[0]);
  var values = ol.xml.pushParseAndPop(
      {}, ol.format.GPX.WPT_PARSERS_, node, objectStack);
  if (!goog.isDef(values)) {
@@ -239,6 +250,7 @@ ol.format.GPX.readWpt_ = function(node, objectStack) {
  var coordinates = ol.format.GPX.appendCoordinate_([], node, values);
  var geometry = new ol.geom.Point(
      coordinates, ol.geom.GeometryLayout.XYZM);
+  ol.format.Feature.transformWithOptions(geometry, false, options);
  var feature = new ol.Feature(geometry);
  feature.setProperties(values);
  return feature;
@@ -415,6 +427,7 @@ ol.format.GPX.prototype.handleReadExtensions_ = function(features) {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.Feature} Feature.
 * @api
 */
@@ -424,7 +437,7 @@ ol.format.GPX.prototype.readFeature;
 /**
 * @inheritDoc
 */
-ol.format.GPX.prototype.readFeatureFromNode = function(node) {
+ol.format.GPX.prototype.readFeatureFromNode = function(node, opt_options) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  if (!goog.array.contains(ol.format.GPX.NAMESPACE_URIS_, node.namespaceURI)) {
    return null;
@@ -433,7 +446,7 @@ ol.format.GPX.prototype.readFeatureFromNode = function(node) {
  if (!goog.isDef(featureReader)) {
    return null;
  }
-  var feature = featureReader(node, []);
+  var feature = featureReader(node, [this.getReadOptions(node, opt_options)]);
  if (!goog.isDef(feature)) {
    return null;
  }
@@ -447,6 +460,7 @@ ol.format.GPX.prototype.readFeatureFromNode = function(node) {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {Array.<ol.Feature>} Features.
 * @api
 */
@@ -456,7 +470,7 @@ ol.format.GPX.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.GPX.prototype.readFeaturesFromNode = function(node) {
+ol.format.GPX.prototype.readFeaturesFromNode = function(node, opt_options) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  if (!goog.array.contains(ol.format.GPX.NAMESPACE_URIS_, node.namespaceURI)) {
    return [];
@@ -464,7 +478,7 @@ ol.format.GPX.prototype.readFeaturesFromNode = function(node) {
  if (node.localName == 'gpx') {
    var features = ol.xml.pushParseAndPop(
        /** @type {Array.<ol.Feature>} */ ([]), ol.format.GPX.GPX_PARSERS_,
-        node, []);
+        node, [this.getReadOptions(node, opt_options)]);
    if (goog.isDef(features)) {
      this.handleReadExtensions_(features);
      return features;
@@ -491,7 +505,7 @@ ol.format.GPX.prototype.readProjection;
 * @inheritDoc
 */
 ol.format.GPX.prototype.readProjectionFromDocument = function(doc) {
-  return ol.proj.get('EPSG:4326');
+  return this.defaultDataProjection;
 };


@@ -499,7 +513,7 @@ ol.format.GPX.prototype.readProjectionFromDocument = function(doc) {
 * @inheritDoc
 */
 ol.format.GPX.prototype.readProjectionFromNode = function(node) {
-  return ol.proj.get('EPSG:4326');
+  return this.defaultDataProjection;
 };


@@ -574,11 +588,14 @@ ol.format.GPX.writeWptType_ = function(node, coordinate, objectStack) {
 * @private
 */
 ol.format.GPX.writeRte_ = function(node, feature, objectStack) {
+  var options = /** @type {olx.format.WriteOptions} */ (objectStack[0]);
  var properties = feature.getProperties();
  var context = {node: node, 'properties': properties};
  var geometry = feature.getGeometry();
  if (goog.isDef(geometry)) {
    goog.asserts.assertInstanceof(geometry, ol.geom.LineString);
+    geometry = /** @type {ol.geom.LineString} */
+        (ol.format.Feature.transformWithOptions(geometry, true, options));
    goog.object.set(context, 'geometryLayout', geometry.getLayout());
    goog.object.set(properties, 'rtept', geometry.getCoordinates());
  }
@@ -598,11 +615,14 @@ ol.format.GPX.writeRte_ = function(node, feature, objectStack) {
 * @private
 */
 ol.format.GPX.writeTrk_ = function(node, feature, objectStack) {
+  var options = /** @type {olx.format.WriteOptions} */ (objectStack[0]);
  var properties = feature.getProperties();
  var context = {node: node, 'properties': properties};
  var geometry = feature.getGeometry();
  if (goog.isDef(geometry)) {
    goog.asserts.assertInstanceof(geometry, ol.geom.MultiLineString);
+    geometry = /** @type {ol.geom.MultiLineString} */
+        (ol.format.Feature.transformWithOptions(geometry, true, options));
    goog.object.set(properties, 'trkseg', geometry.getLineStrings());
  }
  var parentNode = objectStack[objectStack.length - 1].node;
@@ -636,12 +656,15 @@ ol.format.GPX.writeTrkSeg_ = function(node, lineString, objectStack) {
 * @private
 */
 ol.format.GPX.writeWpt_ = function(node, feature, objectStack) {
+  var options = /** @type {olx.format.WriteOptions} */ (objectStack[0]);
  var context = objectStack[objectStack.length - 1];
  goog.asserts.assert(goog.isObject(context));
  goog.object.set(context, 'properties', feature.getProperties());
  var geometry = feature.getGeometry();
  if (goog.isDef(geometry)) {
    goog.asserts.assertInstanceof(geometry, ol.geom.Point);
+    geometry = /** @type {ol.geom.Point} */
+        (ol.format.Feature.transformWithOptions(geometry, true, options));
    goog.object.set(context, 'geometryLayout', geometry.getLayout());
    ol.format.GPX.writeWptType_(node, geometry.getCoordinates(), objectStack);
  }
@@ -845,6 +868,7 @@ ol.format.GPX.GPX_SERIALIZERS_ = ol.xml.makeStructureNS(
 *
 * @function
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @return {Node} Result.
 * @api
 */
@@ -854,11 +878,12 @@ ol.format.GPX.prototype.writeFeatures;
 /**
 * @inheritDoc
 */
-ol.format.GPX.prototype.writeFeaturesNode = function(features) {
+ol.format.GPX.prototype.writeFeaturesNode = function(features, opt_options) {
  //FIXME Serialize metadata
  var gpx = ol.xml.createElementNS('http://www.topografix.com/GPX/1/1', 'gpx');
+
  ol.xml.pushSerializeAndPop(/** @type {ol.xml.NodeStackItem} */
      ({node: gpx}), ol.format.GPX.GPX_SERIALIZERS_,
-      ol.format.GPX.GPX_NODE_FACTORY_, features, []);
+      ol.format.GPX.GPX_NODE_FACTORY_, features, [opt_options]);
  return gpx;
 };
--- a/src/ol/format/igcformat.js
+++ b/src/ol/format/igcformat.js
@@ -5,6 +5,7 @@ goog.require('goog.asserts');
 goog.require('goog.string');
 goog.require('goog.string.newlines');
 goog.require('ol.Feature');
+goog.require('ol.format.Feature');
 goog.require('ol.format.TextFeature');
 goog.require('ol.geom.LineString');
 goog.require('ol.proj');
@@ -38,6 +39,11 @@ ol.format.IGC = function(opt_options) {

  goog.base(this);

+  /**
+   * @inheritDoc
+   */
+  this.defaultDataProjection = ol.proj.get('EPSG:4326');
+
  /**
   * @private
   * @type {ol.format.IGCZ}
@@ -95,6 +101,7 @@ ol.format.IGC.prototype.getExtensions = function() {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.Feature} Feature.
 * @api
 */
@@ -104,7 +111,7 @@ ol.format.IGC.prototype.readFeature;
 /**
 * @inheritDoc
 */
-ol.format.IGC.prototype.readFeatureFromText = function(text) {
+ol.format.IGC.prototype.readFeatureFromText = function(text, opt_options) {
  var altitudeMode = this.altitudeMode_;
  var lines = goog.string.newlines.splitLines(text);
  /** @type {Object.<string, string>} */
@@ -169,7 +176,8 @@ ol.format.IGC.prototype.readFeatureFromText = function(text) {
  var layout = altitudeMode == ol.format.IGCZ.NONE ?
      ol.geom.GeometryLayout.XYM : ol.geom.GeometryLayout.XYZM;
  lineString.setFlatCoordinates(layout, flatCoordinates);
-  var feature = new ol.Feature(lineString);
+  var feature = new ol.Feature(ol.format.Feature.transformWithOptions(
+      lineString, false, opt_options));
  feature.setProperties(properties);
  return feature;
 };
@@ -181,6 +189,7 @@ ol.format.IGC.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
 */
@@ -190,8 +199,8 @@ ol.format.IGC.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.IGC.prototype.readFeaturesFromText = function(text) {
-  var feature = this.readFeatureFromText(text);
+ol.format.IGC.prototype.readFeaturesFromText = function(text, opt_options) {
+  var feature = this.readFeatureFromText(text, opt_options);
  if (!goog.isNull(feature)) {
    return [feature];
  } else {
@@ -215,5 +224,5 @@ ol.format.IGC.prototype.readProjection;
 * @inheritDoc
 */
 ol.format.IGC.prototype.readProjectionFromText = function(text) {
-  return ol.proj.get('EPSG:4326');
+  return this.defaultDataProjection;
 };
--- a/src/ol/format/jsonfeatureformat.js
+++ b/src/ol/format/jsonfeatureformat.js
@@ -51,21 +51,24 @@ ol.format.JSONFeature.prototype.getType = function() {
 /**
 * @inheritDoc
 */
-ol.format.JSONFeature.prototype.readFeature = function(source) {
-  return this.readFeatureFromObject(this.getObject_(source));
+ol.format.JSONFeature.prototype.readFeature = function(source, opt_options) {
+  return this.readFeatureFromObject(
+      this.getObject_(source), this.getReadOptions(source, opt_options));
 };


 /**
 * @inheritDoc
 */
-ol.format.JSONFeature.prototype.readFeatures = function(source) {
-  return this.readFeaturesFromObject(this.getObject_(source));
+ol.format.JSONFeature.prototype.readFeatures = function(source, opt_options) {
+  return this.readFeaturesFromObject(
+      this.getObject_(source), this.getReadOptions(source, opt_options));
 };


 /**
 * @param {Object} object Object.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @protected
 * @return {ol.Feature} Feature.
 */
@@ -74,6 +77,7 @@ ol.format.JSONFeature.prototype.readFeatureFromObject = goog.abstractMethod;

 /**
 * @param {Object} object Object.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @protected
 * @return {Array.<ol.Feature>} Features.
 */
@@ -83,13 +87,15 @@ ol.format.JSONFeature.prototype.readFeaturesFromObject = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.JSONFeature.prototype.readGeometry = function(source) {
-  return this.readGeometryFromObject(this.getObject_(source));
+ol.format.JSONFeature.prototype.readGeometry = function(source, opt_options) {
+  return this.readGeometryFromObject(
+      this.getObject_(source), this.getReadOptions(source, opt_options));
 };


 /**
 * @param {Object} object Object.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @protected
 * @return {ol.geom.Geometry} Geometry.
 */
@@ -115,13 +121,14 @@ ol.format.JSONFeature.prototype.readProjectionFromObject = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.JSONFeature.prototype.writeFeature = function(feature) {
-  return this.writeFeatureObject(feature);
+ol.format.JSONFeature.prototype.writeFeature = function(feature, opt_options) {
+  return this.writeFeatureObject(feature, this.adaptOptions(opt_options));
 };


 /**
 * @param {ol.Feature} feature Feature.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @protected
 * @return {Object} Object.
 */
@@ -131,13 +138,15 @@ ol.format.JSONFeature.prototype.writeFeatureObject = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.JSONFeature.prototype.writeFeatures = function(features) {
-  return this.writeFeaturesObject(features);
+ol.format.JSONFeature.prototype.writeFeatures = function(
+    features, opt_options) {
+  return this.writeFeaturesObject(features, this.adaptOptions(opt_options));
 };


 /**
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @protected
 * @return {Object} Object.
 */
@@ -147,13 +156,15 @@ ol.format.JSONFeature.prototype.writeFeaturesObject = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.JSONFeature.prototype.writeGeometry = function(geometry) {
-  return this.writeGeometryObject(geometry);
+ol.format.JSONFeature.prototype.writeGeometry = function(
+    geometry, opt_options) {
+  return this.writeGeometryObject(geometry, this.adaptOptions(opt_options));
 };


 /**
 * @param {ol.geom.Geometry} geometry Geometry.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @protected
 * @return {Object} Object.
 */
--- a/src/ol/format/kmlformat.js
+++ b/src/ol/format/kmlformat.js
@@ -17,6 +17,7 @@ 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');
@@ -71,6 +72,11 @@ ol.format.KML = function(opt_options) {

  goog.base(this);

+  /**
+   * @inheritDoc
+   */
+  this.defaultDataProjection = ol.proj.get('EPSG:4326');
+
  var defaultStyle = goog.isDef(options.defaultStyle) ?
      options.defaultStyle : ol.format.KML.DEFAULT_STYLE_ARRAY_;

@@ -1434,6 +1440,10 @@ ol.format.KML.prototype.readPlacemark_ = function(node, objectStack) {
  if (!goog.isNull(id)) {
    feature.setId(id);
  }
+  var options = /** @type {olx.format.ReadOptions} */ (objectStack[0]);
+  if (goog.isDefAndNotNull(object.geometry)) {
+    ol.format.Feature.transformWithOptions(object.geometry, false, options);
+  }
  feature.setProperties(object);
  if (this.extractStyles_) {
    feature.setStyle(this.featureStyleFunction_);
@@ -1497,6 +1507,7 @@ ol.format.KML.prototype.readSharedStyleMap_ = function(node, objectStack) {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.Feature} Feature.
 * @api
 */
@@ -1506,13 +1517,14 @@ ol.format.KML.prototype.readFeature;
 /**
 * @inheritDoc
 */
-ol.format.KML.prototype.readFeatureFromNode = function(node) {
+ol.format.KML.prototype.readFeatureFromNode = function(node, opt_options) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  if (!goog.array.contains(ol.format.KML.NAMESPACE_URIS_, node.namespaceURI)) {
    return null;
  }
  goog.asserts.assert(node.localName == 'Placemark');
-  var feature = this.readPlacemark_(node, []);
+  var feature = this.readPlacemark_(
+      node, [this.getReadOptions(node, opt_options)]);
  if (goog.isDef(feature)) {
    return feature;
  } else {
@@ -1526,6 +1538,7 @@ ol.format.KML.prototype.readFeatureFromNode = function(node) {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {Array.<ol.Feature>} Features.
 * @api
 */
@@ -1535,7 +1548,7 @@ ol.format.KML.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.KML.prototype.readFeaturesFromNode = function(node) {
+ol.format.KML.prototype.readFeaturesFromNode = function(node, opt_options) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  if (!goog.array.contains(ol.format.KML.NAMESPACE_URIS_, node.namespaceURI)) {
    return [];
@@ -1543,14 +1556,16 @@ ol.format.KML.prototype.readFeaturesFromNode = function(node) {
  var features;
  var localName = ol.xml.getLocalName(node);
  if (localName == 'Document' || localName == 'Folder') {
-    features = this.readDocumentOrFolder_(node, []);
+    features = this.readDocumentOrFolder_(
+        node, [this.getReadOptions(node, opt_options)]);
    if (goog.isDef(features)) {
      return features;
    } else {
      return [];
    }
  } else if (localName == 'Placemark') {
-    var feature = this.readPlacemark_(node, []);
+    var feature = this.readPlacemark_(
+        node, [this.getReadOptions(node, opt_options)]);
    if (goog.isDef(feature)) {
      return [feature];
    } else {
@@ -1561,7 +1576,7 @@ ol.format.KML.prototype.readFeaturesFromNode = function(node) {
    var n;
    for (n = node.firstElementChild; !goog.isNull(n);
         n = n.nextElementSibling) {
-      var fs = this.readFeaturesFromNode(n);
+      var fs = this.readFeaturesFromNode(n, opt_options);
      if (goog.isDef(fs)) {
        goog.array.extend(features, fs);
      }
@@ -1655,7 +1670,7 @@ ol.format.KML.prototype.readProjection;
 * @inheritDoc
 */
 ol.format.KML.prototype.readProjectionFromDocument = function(doc) {
-  return ol.proj.get('EPSG:4326');
+  return this.defaultDataProjection;
 };


@@ -1663,7 +1678,7 @@ ol.format.KML.prototype.readProjectionFromDocument = function(doc) {
 * @inheritDoc
 */
 ol.format.KML.prototype.readProjectionFromNode = function(node) {
-  return ol.proj.get('EPSG:4326');
+  return this.defaultDataProjection;
 };


@@ -1963,9 +1978,14 @@ ol.format.KML.writePlacemark_ = function(node, feature, objectStack) {
      ol.xml.OBJECT_PROPERTY_NODE_FACTORY, values, objectStack, orderedKeys);

  // serialize geometry
+  var options = /** @type {olx.format.WriteOptions} */ (objectStack[0]);
+  var geometry = feature.getGeometry();
+  if (goog.isDefAndNotNull(geometry)) {
+    geometry =
+        ol.format.Feature.transformWithOptions(geometry, true, options);
+  }
  ol.xml.pushSerializeAndPop(context, ol.format.KML.PLACEMARK_SERIALIZERS_,
-      ol.format.KML.GEOMETRY_NODE_FACTORY_,
-      [feature.getGeometry()], objectStack);
+      ol.format.KML.GEOMETRY_NODE_FACTORY_, [geometry], objectStack);
 };


@@ -2504,6 +2524,7 @@ ol.format.KML.OUTER_BOUNDARY_NODE_FACTORY_ =
 *
 * @function
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions=} opt_options Options.
 * @return {Node} Result.
 * @api
 */
@@ -2513,7 +2534,7 @@ ol.format.KML.prototype.writeFeatures;
 /**
 * @inheritDoc
 */
-ol.format.KML.prototype.writeFeaturesNode = function(features) {
+ol.format.KML.prototype.writeFeaturesNode = function(features, opt_options) {
  var kml = ol.xml.createElementNS(ol.format.KML.NAMESPACE_URIS_[4], 'kml');
  var xmlnsUri = 'http://www.w3.org/2000/xmlns/';
  var xmlSchemaInstanceUri = 'http://www.w3.org/2001/XMLSchema-instance';
@@ -2533,6 +2554,6 @@ ol.format.KML.prototype.writeFeaturesNode = function(features) {
  var orderedKeys = ol.format.KML.KML_SEQUENCE_[kml.namespaceURI];
  var values = ol.xml.makeSequence(properties, orderedKeys);
  ol.xml.pushSerializeAndPop(context, ol.format.KML.KML_SERIALIZERS_,
-      ol.xml.OBJECT_PROPERTY_NODE_FACTORY, values, [], orderedKeys);
+      ol.xml.OBJECT_PROPERTY_NODE_FACTORY, values, [opt_options], orderedKeys);
  return kml;
 };
--- a/src/ol/format/osmxmlformat.js
+++ b/src/ol/format/osmxmlformat.js
@@ -6,6 +6,7 @@ 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.geom.LineString');
 goog.require('ol.geom.Point');
@@ -26,6 +27,11 @@ goog.require('ol.xml');
 */
 ol.format.OSMXML = function() {
  goog.base(this);
+
+  /**
+   * @inheritDoc
+   */
+  this.defaultDataProjection = ol.proj.get('EPSG:4326');
 };
 goog.inherits(ol.format.OSMXML, ol.format.XMLFeature);

@@ -54,6 +60,7 @@ ol.format.OSMXML.prototype.getExtensions = function() {
 ol.format.OSMXML.readNode_ = function(node, objectStack) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  goog.asserts.assert(node.localName == 'node');
+  var options = /** @type {olx.format.ReadOptions} */ (objectStack[0]);
  var state = /** @type {Object} */ (objectStack[objectStack.length - 1]);
  var id = node.getAttribute('id');
  var coordinates = /** @type {Array.<number>} */ ([
@@ -67,6 +74,7 @@ ol.format.OSMXML.readNode_ = function(node, objectStack) {
  }, ol.format.OSMXML.NODE_PARSERS_, node, objectStack);
  if (!goog.object.isEmpty(values.tags)) {
    var geometry = new ol.geom.Point(coordinates);
+    ol.format.Feature.transformWithOptions(geometry, false, options);
    var feature = new ol.Feature(geometry);
    feature.setId(id);
    feature.setProperties(values.tags);
@@ -83,6 +91,7 @@ ol.format.OSMXML.readNode_ = function(node, objectStack) {
 ol.format.OSMXML.readWay_ = function(node, objectStack) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
  goog.asserts.assert(node.localName == 'way');
+  var options = /** @type {olx.format.ReadOptions} */ (objectStack[0]);
  var id = node.getAttribute('id');
  var values = ol.xml.pushParseAndPop({
    ndrefs: [],
@@ -104,6 +113,7 @@ ol.format.OSMXML.readWay_ = function(node, objectStack) {
    geometry = new ol.geom.LineString(null);
    geometry.setFlatCoordinates(ol.geom.GeometryLayout.XY, flatCoordinates);
  }
+  ol.format.Feature.transformWithOptions(geometry, false, options);
  var feature = new ol.Feature(geometry);
  feature.setId(id);
  feature.setProperties(values.tags);
@@ -189,6 +199,7 @@ ol.format.OSMXML.NODE_PARSERS_ = ol.xml.makeParsersNS(
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {Array.<ol.Feature>} Features.
 * @api
 */
@@ -198,13 +209,14 @@ ol.format.OSMXML.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.OSMXML.prototype.readFeaturesFromNode = function(node) {
+ol.format.OSMXML.prototype.readFeaturesFromNode = function(node, opt_options) {
  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
+  var options = this.getReadOptions(node, opt_options);
  if (node.localName == 'osm') {
    var state = ol.xml.pushParseAndPop({
      nodes: {},
      features: []
-    }, ol.format.OSMXML.PARSERS_, node, []);
+    }, ol.format.OSMXML.PARSERS_, node, [options]);
    if (goog.isDef(state.features)) {
      return state.features;
    }
@@ -228,7 +240,7 @@ ol.format.OSMXML.prototype.readProjection;
 * @inheritDoc
 */
 ol.format.OSMXML.prototype.readProjectionFromDocument = function(doc) {
-  return ol.proj.get('EPSG:4326');
+  return this.defaultDataProjection;
 };


@@ -236,5 +248,5 @@ ol.format.OSMXML.prototype.readProjectionFromDocument = function(doc) {
 * @inheritDoc
 */
 ol.format.OSMXML.prototype.readProjectionFromNode = function(node) {
-  return ol.proj.get('EPSG:4326');
+  return this.defaultDataProjection;
 };
--- a/src/ol/format/polylineformat.js
+++ b/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');
@@ -22,6 +23,11 @@ ol.format.Polyline = function(opt_options) {

  goog.base(this);

+  /**
+   * @inheritDoc
+   */
+  this.defaultDataProjection = ol.proj.get('EPSG:4326');
+
  /**
   * @private
   * @type {number}
@@ -248,6 +254,7 @@ 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 +264,8 @@ 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 +276,7 @@ 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 +286,9 @@ 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 +298,7 @@ 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 +308,16 @@ 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);
+
+  return /** @type {ol.geom.Geometry} */ (
+      ol.format.Feature.transformWithOptions(
+          new ol.geom.LineString(coordinates), false,
+          this.adaptOptions(opt_options)));
 };


@@ -321,17 +336,17 @@ ol.format.Polyline.prototype.readProjection;
 * @inheritDoc
 */
 ol.format.Polyline.prototype.readProjectionFromText = function(text) {
-  return ol.proj.get('EPSG:4326');
+  return this.defaultDataProjection;
 };


 /**
 * @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 +357,10 @@ 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 +369,7 @@ 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 +379,12 @@ 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);
+  geometry = /** @type {ol.geom.LineString} */
+      (ol.format.Feature.transformWithOptions(
+          geometry, true, this.adaptOptions(opt_options)));
  var flatCoordinates = geometry.getFlatCoordinates();
  var stride = geometry.getStride();
  return ol.format.Polyline.encodeDeltas(flatCoordinates, stride, this.factor_);
--- a/src/ol/format/textfeatureformat.js
+++ b/src/ol/format/textfeatureformat.js
@@ -47,13 +47,15 @@ ol.format.TextFeature.prototype.getType = function() {
 /**
 * @inheritDoc
 */
-ol.format.TextFeature.prototype.readFeature = function(source) {
-  return this.readFeatureFromText(this.getText_(source));
+ol.format.TextFeature.prototype.readFeature = function(source, opt_options) {
+  return this.readFeatureFromText(
+      this.getText_(source), this.adaptOptions(opt_options));
 };


 /**
 * @param {string} text Text.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @protected
 * @return {ol.Feature} Feature.
 */
@@ -63,13 +65,15 @@ ol.format.TextFeature.prototype.readFeatureFromText = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.TextFeature.prototype.readFeatures = function(source) {
-  return this.readFeaturesFromText(this.getText_(source));
+ol.format.TextFeature.prototype.readFeatures = function(source, opt_options) {
+  return this.readFeaturesFromText(
+      this.getText_(source), this.adaptOptions(opt_options));
 };


 /**
 * @param {string} text Text.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @protected
 * @return {Array.<ol.Feature>} Features.
 */
@@ -79,13 +83,15 @@ ol.format.TextFeature.prototype.readFeaturesFromText = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.TextFeature.prototype.readGeometry = function(source) {
-  return this.readGeometryFromText(this.getText_(source));
+ol.format.TextFeature.prototype.readGeometry = function(source, opt_options) {
+  return this.readGeometryFromText(
+      this.getText_(source), this.adaptOptions(opt_options));
 };


 /**
 * @param {string} text Text.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @protected
 * @return {ol.geom.Geometry} Geometry.
 */
@@ -111,13 +117,14 @@ ol.format.TextFeature.prototype.readProjectionFromText = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.TextFeature.prototype.writeFeature = function(feature) {
-  return this.writeFeatureText(feature);
+ol.format.TextFeature.prototype.writeFeature = function(feature, opt_options) {
+  return this.writeFeatureText(feature, this.adaptOptions(opt_options));
 };


 /**
 * @param {ol.Feature} feature Features.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @protected
 * @return {string} Text.
 */
@@ -127,13 +134,15 @@ ol.format.TextFeature.prototype.writeFeatureText = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.TextFeature.prototype.writeFeatures = function(features) {
-  return this.writeFeaturesText(features);
+ol.format.TextFeature.prototype.writeFeatures = function(
+    features, opt_options) {
+  return this.writeFeaturesText(features, this.adaptOptions(opt_options));
 };


 /**
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @protected
 * @return {string} Text.
 */
@@ -143,13 +152,15 @@ ol.format.TextFeature.prototype.writeFeaturesText = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.TextFeature.prototype.writeGeometry = function(geometry) {
-  return this.writeGeometryText(geometry);
+ol.format.TextFeature.prototype.writeGeometry = function(
+    geometry, opt_options) {
+  return this.writeGeometryText(geometry, this.adaptOptions(opt_options));
 };


 /**
 * @param {ol.geom.Geometry} geometry Geometry.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @protected
 * @return {string} Text.
 */
--- a/src/ol/format/topojsonformat.js
+++ b/src/ol/format/topojsonformat.js
@@ -3,6 +3,7 @@ goog.provide('ol.format.TopoJSON');
 goog.require('goog.asserts');
 goog.require('goog.object');
 goog.require('ol.Feature');
+goog.require('ol.format.Feature');
 goog.require('ol.format.JSONFeature');
 goog.require('ol.geom.LineString');
 goog.require('ol.geom.MultiLineString');
@@ -30,11 +31,11 @@ ol.format.TopoJSON = function(opt_options) {
  goog.base(this);

  /**
-   * @private
-   * @type {ol.proj.Projection}
+   * @inheritDoc
   */
-  this.defaultProjection_ =
-      ol.proj.get(options.defaultProjection || 'EPSG:4326');
+  this.defaultDataProjection = ol.proj.get(
+      goog.isDefAndNotNull(options.defaultDataProjection) ?
+          options.defaultDataProjection : 'EPSG:4326');

 };
 goog.inherits(ol.format.TopoJSON, ol.format.JSONFeature);
@@ -217,17 +218,18 @@ ol.format.TopoJSON.prototype.getExtensions = function() {
 * @param {Array.<Array.<ol.Coordinate>>} arcs Array of arcs.
 * @param {Array.<number>} scale Scale for each dimension.
 * @param {Array.<number>} translate Translation for each dimension.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {Array.<ol.Feature>} Array of features.
 * @private
 */
 ol.format.TopoJSON.readFeaturesFromGeometryCollection_ = function(
-    collection, arcs, scale, translate) {
+    collection, arcs, scale, translate, opt_options) {
  var geometries = collection.geometries;
  var features = [];
  var i, ii;
  for (i = 0, ii = geometries.length; i < ii; ++i) {
    features[i] = ol.format.TopoJSON.readFeatureFromGeometry_(
-        geometries[i], arcs, scale, translate);
+        geometries[i], arcs, scale, translate, opt_options);
  }
  return features;
 };
@@ -240,11 +242,12 @@ ol.format.TopoJSON.readFeaturesFromGeometryCollection_ = function(
 * @param {Array.<Array.<ol.Coordinate>>} arcs Array of arcs.
 * @param {Array.<number>} scale Scale for each dimension.
 * @param {Array.<number>} translate Translation for each dimension.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.Feature} Feature.
 * @private
 */
 ol.format.TopoJSON.readFeatureFromGeometry_ = function(object, arcs,
-    scale, translate) {
+    scale, translate, opt_options) {
  var geometry;
  var type = object.type;
  var geometryReader = ol.format.TopoJSON.GEOMETRY_READERS_[type];
@@ -255,7 +258,8 @@ ol.format.TopoJSON.readFeatureFromGeometry_ = function(object, arcs,
    geometry = geometryReader(object, arcs);
  }
  var feature = new ol.Feature();
-  feature.setGeometry(geometry);
+  feature.setGeometry(/** @type {ol.geom.Geometry} */ (
+      ol.format.Feature.transformWithOptions(geometry, false, opt_options)));
  if (goog.isDef(object.id)) {
    feature.setId(object.id);
  }
@@ -280,7 +284,8 @@ ol.format.TopoJSON.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.TopoJSON.prototype.readFeaturesFromObject = function(object) {
+ol.format.TopoJSON.prototype.readFeaturesFromObject = function(
+    object, opt_options) {
  if (object.type == 'Topology') {
    var topoJSONTopology = /** @type {TopoJSONTopology} */ (object);
    var transform, scale = null, translate = null;
@@ -305,12 +310,12 @@ ol.format.TopoJSON.prototype.readFeaturesFromObject = function(object) {
            (topoJSONFeatures[i]);
        features.push.apply(features,
            ol.format.TopoJSON.readFeaturesFromGeometryCollection_(
-                feature, arcs, scale, translate));
+                feature, arcs, scale, translate, opt_options));
      } else {
        feature = /** @type {TopoJSONGeometry} */
            (topoJSONFeatures[i]);
        features.push(ol.format.TopoJSON.readFeatureFromGeometry_(
-            feature, arcs, scale, translate));
+            feature, arcs, scale, translate, opt_options));
      }
    }
    return features;
@@ -385,7 +390,7 @@ ol.format.TopoJSON.transformVertex_ = function(vertex, scale, translate) {
 * @api
 */
 ol.format.TopoJSON.prototype.readProjection = function(object) {
-  return this.defaultProjection_;
+  return this.defaultDataProjection;
 };


--- a/src/ol/format/wfsformat.js
+++ b/src/ol/format/wfsformat.js
@@ -100,6 +100,7 @@ ol.format.WFS.schemaLocation_ = 'http://www.opengis.net/wfs ' +
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {Array.<ol.Feature>} Features.
 * @api
 */
@@ -109,11 +110,14 @@ ol.format.WFS.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.WFS.prototype.readFeaturesFromNode = function(node) {
-  var objectStack = [{
+ol.format.WFS.prototype.readFeaturesFromNode = function(node, opt_options) {
+  var context = {
    'featureType': this.featureType_,
    'featureNS': this.featureNS_
-  }];
+  };
+  goog.object.extend(context, this.getReadOptions(node,
+      goog.isDef(opt_options) ? opt_options : {}));
+  var objectStack = [context];
  var features = ol.xml.pushParseAndPop([],
      ol.format.GML.FEATURE_COLLECTION_PARSERS, node, objectStack);
  if (!goog.isDef(features)) {
--- a/src/ol/format/wktformat.js
+++ b/src/ol/format/wktformat.js
@@ -3,6 +3,7 @@ goog.provide('ol.format.WKT');
 goog.require('goog.array');
 goog.require('goog.asserts');
 goog.require('ol.Feature');
+goog.require('ol.format.Feature');
 goog.require('ol.format.TextFeature');
 goog.require('ol.geom.Geometry');
 goog.require('ol.geom.GeometryCollection');
@@ -208,6 +209,7 @@ ol.format.WKT.prototype.parse_ = function(wkt) {
 *
 * @function
 * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @param {olx.format.ReadOptions=} opt_options Read options.
 * @return {ol.Feature} Feature.
 * @api
 */
@@ -217,8 +219,8 @@ ol.format.WKT.prototype.readFeature;
 /**
 * @inheritDoc
 */
-ol.format.WKT.prototype.readFeatureFromText = function(text) {
-  var geom = this.readGeometryFromText(text);
+ol.format.WKT.prototype.readFeatureFromText = function(text, opt_options) {
+  var geom = this.readGeometryFromText(text, opt_options);
  if (goog.isDef(geom)) {
    var feature = new ol.Feature();
    feature.setGeometry(geom);
@@ -233,6 +235,7 @@ ol.format.WKT.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
 */
@@ -242,9 +245,9 @@ ol.format.WKT.prototype.readFeatures;
 /**
 * @inheritDoc
 */
-ol.format.WKT.prototype.readFeaturesFromText = function(text) {
+ol.format.WKT.prototype.readFeaturesFromText = function(text, opt_options) {
  var geometries = [];
-  var geometry = this.readGeometryFromText(text);
+  var geometry = this.readGeometryFromText(text, opt_options);
  if (this.splitCollection_ &&
      geometry.getType() == ol.geom.GeometryType.GEOMETRY_COLLECTION) {
    geometries = (/** @type {ol.geom.GeometryCollection} */ (geometry))
@@ -267,6 +270,7 @@ ol.format.WKT.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
 */
@@ -276,8 +280,14 @@ ol.format.WKT.prototype.readGeometry;
 /**
 * @inheritDoc
 */
-ol.format.WKT.prototype.readGeometryFromText = function(text) {
-  return this.parse_(text) || null;
+ol.format.WKT.prototype.readGeometryFromText = function(text, opt_options) {
+  var geometry = this.parse_(text);
+  if (goog.isDef(geometry)) {
+    return /** @type {ol.geom.Geometry} */ (
+        ol.format.Feature.transformWithOptions(geometry, false, opt_options));
+  } else {
+    return null;
+  }
 };


@@ -294,6 +304,7 @@ ol.format.WKT.prototype.readProjectionFromText = function(text) {
 *
 * @function
 * @param {ol.Feature} feature Feature.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @return {string} WKT string.
 * @api
 */
@@ -303,10 +314,10 @@ ol.format.WKT.prototype.writeFeature;
 /**
 * @inheritDoc
 */
-ol.format.WKT.prototype.writeFeatureText = function(feature) {
+ol.format.WKT.prototype.writeFeatureText = function(feature, opt_options) {
  var geometry = feature.getGeometry();
  if (goog.isDef(geometry)) {
-    return this.writeGeometryText(geometry);
+    return this.writeGeometryText(geometry, opt_options);
  }
  return '';
 };
@@ -317,6 +328,7 @@ ol.format.WKT.prototype.writeFeatureText = function(feature) {
 *
 * @function
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions=} opt_options Write options.
 * @return {string} WKT string.
 * @api
 */
@@ -326,16 +338,16 @@ ol.format.WKT.prototype.writeFeatures;
 /**
 * @inheritDoc
 */
-ol.format.WKT.prototype.writeFeaturesText = function(features) {
+ol.format.WKT.prototype.writeFeaturesText = function(features, opt_options) {
  if (features.length == 1) {
-    return this.writeFeatureText(features[0]);
+    return this.writeFeatureText(features[0], opt_options);
  }
  var geometries = [];
  for (var i = 0, ii = features.length; i < ii; ++i) {
    geometries.push(features[i].getGeometry());
  }
  var collection = new ol.geom.GeometryCollection(geometries);
-  return this.writeGeometryText(collection);
+  return this.writeGeometryText(collection, opt_options);
 };


@@ -353,8 +365,9 @@ ol.format.WKT.prototype.writeGeometry;
 /**
 * @inheritDoc
 */
-ol.format.WKT.prototype.writeGeometryText = function(geometry) {
-  return ol.format.WKT.encode_(geometry);
+ol.format.WKT.prototype.writeGeometryText = function(geometry, opt_options) {
+  return ol.format.WKT.encode_(/** @type {ol.geom.Geometry} */ (
+      ol.format.Feature.transformWithOptions(geometry, true, opt_options)));
 };


--- a/src/ol/format/xmlfeatureformat.js
+++ b/src/ol/format/xmlfeatureformat.js
@@ -5,6 +5,7 @@ goog.require('goog.asserts');
 goog.require('goog.dom.NodeType');
 goog.require('ol.format.Feature');
 goog.require('ol.format.FormatType');
+goog.require('ol.proj');
 goog.require('ol.xml');


@@ -35,14 +36,15 @@ ol.format.XMLFeature.prototype.getType = function() {
 /**
 * @inheritDoc
 */
-ol.format.XMLFeature.prototype.readFeature = function(source) {
+ol.format.XMLFeature.prototype.readFeature = function(source, opt_options) {
  if (ol.xml.isDocument(source)) {
-    return this.readFeatureFromDocument(/** @type {Document} */ (source));
+    return this.readFeatureFromDocument(
+        /** @type {Document} */ (source), opt_options);
  } else if (ol.xml.isNode(source)) {
-    return this.readFeatureFromNode(/** @type {Node} */ (source));
+    return this.readFeatureFromNode(/** @type {Node} */ (source), opt_options);
  } else if (goog.isString(source)) {
    var doc = ol.xml.load(source);
-    return this.readFeatureFromDocument(doc);
+    return this.readFeatureFromDocument(doc, opt_options);
  } else {
    goog.asserts.fail();
    return null;
@@ -52,10 +54,12 @@ ol.format.XMLFeature.prototype.readFeature = function(source) {

 /**
 * @param {Document} doc Document.
+ * @param {olx.format.ReadOptions=} opt_options Options.
 * @return {ol.Feature} Feature.
 */
-ol.format.XMLFeature.prototype.readFeatureFromDocument = function(doc) {
-  var features = this.readFeaturesFromDocument(doc);
+ol.format.XMLFeature.prototype.readFeatureFromDocument = function(
+    doc, opt_options) {
+  var features = this.readFeaturesFromDocument(doc, opt_options);
  if (features.length > 0) {
    return features[0];
  } else {
@@ -66,6 +70,7 @@ ol.format.XMLFeature.prototype.readFeatureFromDocument = function(doc) {

 /**
 * @param {Node} node Node.
+ * @param {olx.format.ReadOptions=} opt_options Options.
 * @return {ol.Feature} Feature.
 */
 ol.format.XMLFeature.prototype.readFeatureFromNode = goog.abstractMethod;
@@ -74,14 +79,15 @@ ol.format.XMLFeature.prototype.readFeatureFromNode = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.XMLFeature.prototype.readFeatures = function(source) {
+ol.format.XMLFeature.prototype.readFeatures = function(source, opt_options) {
  if (ol.xml.isDocument(source)) {
-    return this.readFeaturesFromDocument(/** @type {Document} */ (source));
+    return this.readFeaturesFromDocument(
+        /** @type {Document} */ (source), opt_options);
  } else if (ol.xml.isNode(source)) {
-    return this.readFeaturesFromNode(/** @type {Node} */ (source));
+    return this.readFeaturesFromNode(/** @type {Node} */ (source), opt_options);
  } else if (goog.isString(source)) {
    var doc = ol.xml.load(source);
-    return this.readFeaturesFromDocument(doc);
+    return this.readFeaturesFromDocument(doc, opt_options);
  } else {
    goog.asserts.fail();
    return [];
@@ -91,16 +97,18 @@ ol.format.XMLFeature.prototype.readFeatures = function(source) {

 /**
 * @param {Document} doc Document.
+ * @param {olx.format.ReadOptions=} opt_options Options.
 * @protected
 * @return {Array.<ol.Feature>} Features.
 */
-ol.format.XMLFeature.prototype.readFeaturesFromDocument = function(doc) {
+ol.format.XMLFeature.prototype.readFeaturesFromDocument = function(
+    doc, opt_options) {
  /** @type {Array.<ol.Feature>} */
  var features = [];
  var n;
  for (n = doc.firstChild; !goog.isNull(n); n = n.nextSibling) {
    if (n.nodeType == goog.dom.NodeType.ELEMENT) {
-      goog.array.extend(features, this.readFeaturesFromNode(n));
+      goog.array.extend(features, this.readFeaturesFromNode(n, opt_options));
    }
  }
  return features;
@@ -109,6 +117,7 @@ ol.format.XMLFeature.prototype.readFeaturesFromDocument = function(doc) {

 /**
 * @param {Node} node Node.
+ * @param {olx.format.ReadOptions=} opt_options Options.
 * @protected
 * @return {Array.<ol.Feature>} Features.
 */
@@ -118,14 +127,15 @@ ol.format.XMLFeature.prototype.readFeaturesFromNode = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.XMLFeature.prototype.readGeometry = function(source) {
+ol.format.XMLFeature.prototype.readGeometry = function(source, opt_options) {
  if (ol.xml.isDocument(source)) {
-    return this.readGeometryFromDocument(/** @type {Document} */ (source));
+    return this.readGeometryFromDocument(
+        /** @type {Document} */ (source), opt_options);
  } else if (ol.xml.isNode(source)) {
-    return this.readGeometryFromNode(/** @type {Node} */ (source));
+    return this.readGeometryFromNode(/** @type {Node} */ (source), opt_options);
  } else if (goog.isString(source)) {
    var doc = ol.xml.load(source);
-    return this.readGeometryFromDocument(doc);
+    return this.readGeometryFromDocument(doc, opt_options);
  } else {
    goog.asserts.fail();
    return null;
@@ -135,6 +145,7 @@ ol.format.XMLFeature.prototype.readGeometry = function(source) {

 /**
 * @param {Document} doc Document.
+ * @param {olx.format.ReadOptions=} opt_options Options.
 * @protected
 * @return {ol.geom.Geometry} Geometry.
 */
@@ -143,6 +154,7 @@ ol.format.XMLFeature.prototype.readGeometryFromDocument = goog.abstractMethod;

 /**
 * @param {Node} node Node.
+ * @param {olx.format.ReadOptions=} opt_options Options.
 * @protected
 * @return {ol.geom.Geometry} Geometry.
 */
@@ -186,13 +198,14 @@ ol.format.XMLFeature.prototype.readProjectionFromNode = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.XMLFeature.prototype.writeFeature = function(feature) {
-  return this.writeFeatureNode(feature);
+ol.format.XMLFeature.prototype.writeFeature = function(feature, opt_options) {
+  return this.writeFeatureNode(feature, this.adaptOptions(opt_options));
 };


 /**
 * @param {ol.Feature} feature Feature.
+ * @param {olx.format.WriteOptions=} opt_options Options.
 * @protected
 * @return {Node} Node.
 */
@@ -202,13 +215,14 @@ ol.format.XMLFeature.prototype.writeFeatureNode = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.XMLFeature.prototype.writeFeatures = function(features) {
-  return this.writeFeaturesNode(features);
+ol.format.XMLFeature.prototype.writeFeatures = function(features, opt_options) {
+  return this.writeFeaturesNode(features, this.adaptOptions(opt_options));
 };


 /**
 * @param {Array.<ol.Feature>} features Features.
+ * @param {olx.format.WriteOptions=} opt_options Options.
 * @protected
 * @return {Node} Node.
 */
@@ -218,13 +232,14 @@ ol.format.XMLFeature.prototype.writeFeaturesNode = goog.abstractMethod;
 /**
 * @inheritDoc
 */
-ol.format.XMLFeature.prototype.writeGeometry = function(geometry) {
-  return this.writeGeometryNode(geometry);
+ol.format.XMLFeature.prototype.writeGeometry = function(geometry, opt_options) {
+  return this.writeGeometryNode(geometry, this.adaptOptions(opt_options));
 };


 /**
 * @param {ol.geom.Geometry} geometry Geometry.
+ * @param {olx.format.WriteOptions=} opt_options Options.
 * @protected
 * @return {Node} Node.
 */
--- a/src/ol/source/geojsonsource.js
+++ b/src/ol/source/geojsonsource.js
@@ -23,7 +23,7 @@ ol.source.GeoJSON = function(opt_options) {
    attributions: options.attributions,
    extent: options.extent,
    format: new ol.format.GeoJSON({
-      defaultProjection: options.defaultProjection
+      defaultDataProjection: options.defaultProjection
    }),
    logo: options.logo,
    object: options.object,
--- a/src/ol/source/topojsonsource.js
+++ b/src/ol/source/topojsonsource.js
@@ -23,7 +23,7 @@ ol.source.TopoJSON = function(opt_options) {
    attributions: options.attributions,
    extent: options.extent,
    format: new ol.format.TopoJSON({
-      defaultProjection: options.defaultProjection
+      defaultDataProjection: options.defaultProjection
    }),
    logo: options.logo,
    object: options.object,