Add subclass for version ol.format.GML.v2

2014-09-23 12:14:44 +02:00
parent b8e5ffaf31
commit 8b38367e2b
1 changed files with 152 additions and 0 deletions
--- a/src/ol/format/gml/v2.js
+++ b/src/ol/format/gml/v2.js
@@ -0,0 +1,152 @@
+goog.provide('ol.format.GML.v2');
+
+goog.require('goog.asserts');
+goog.require('goog.dom');
+goog.require('goog.dom.NodeType');
+goog.require('goog.object');
+goog.require('ol.format.GML');
+goog.require('ol.format.XSD');
+goog.require('ol.proj');
+goog.require('ol.xml');
+
+
+
+/**
+ * @classdesc
+ * Feature format for reading and writing data in the GML format,
+ * version 2.1.2.
+ *
+ * @constructor
+ * @param {olx.format.GMLOptions=} opt_options
+ *     Optional configuration object.
+ * @extends {ol.format.GML}
+ * @api stable
+ */
+ol.format.GML.v2 = function(opt_options) {
+
+  goog.base(this);
+};
+goog.inherits(ol.format.GML.v2, ol.format.GML);
+
+
+/**
+ * @protected
+ * @type {string}
+ */
+ol.format.GML.v2.schemaLocation_ = 'http://www.opengis.net/gml ' +
+    'http://schemas.opengis.net/gml/2.1.2/feature.xsd';
+
+
+/**
+ * @param {Node} node Node.
+ * @param {Array.<*>} objectStack Object stack.
+ * @private
+ * @return {Array.<number>|undefined} Flat coordinates.
+ */
+ol.format.GML.v2.prototype.readFlatCoordinates_ = function(node, objectStack) {
+  var s = ol.xml.getAllTextContent(node, false).replace(/^\s*|\s*$/g, '');
+  var context = objectStack[0];
+  goog.asserts.assert(goog.isObject(context));
+  var containerSrs = goog.object.get(context, 'srsName');
+  var containerDimension = node.parentNode.getAttribute('srsDimension');
+  var axisOrientation = 'enu';
+  if (!goog.isNull(containerSrs)) {
+    var proj = ol.proj.get(containerSrs);
+    axisOrientation = proj.getAxisOrientation();
+  }
+  var coords = s.split(/[\s,]+/);
+  // The "dimension" attribute is from the GML 3.0.1 spec.
+  var dim = 2;
+  if (!goog.isNull(node.getAttribute('srsDimension'))) {
+    dim = ol.format.XSD.readNonNegativeIntegerString(
+        node.getAttribute('srsDimension'));
+  } else if (!goog.isNull(node.getAttribute('dimension'))) {
+    dim = ol.format.XSD.readNonNegativeIntegerString(
+        node.getAttribute('dimension'));
+  } else if (!goog.isNull(containerDimension)) {
+    dim = ol.format.XSD.readNonNegativeIntegerString(containerDimension);
+  }
+  var x, y, z;
+  var flatCoordinates = [];
+  for (var i = 0, ii = coords.length; i < ii; i += dim) {
+    x = parseFloat(coords[i]);
+    y = parseFloat(coords[i + 1]);
+    z = (dim === 3) ? parseFloat(coords[i + 2]) : 0;
+    if (axisOrientation.substr(0, 2) === 'en') {
+      flatCoordinates.push(x, y, z);
+    } else {
+      flatCoordinates.push(y, x, z);
+    }
+  }
+  return flatCoordinates;
+};
+
+
+/**
+ * @param {Node} node Node.
+ * @param {Array.<*>} objectStack Object stack.
+ * @private
+ */
+ol.format.GML.v2.prototype.innerBoundaryIsParser_ =
+    function(node, objectStack) {
+  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
+  goog.asserts.assert(node.localName == 'innerBoundaryIs');
+  var flatLinearRing = ol.xml.pushParseAndPop(
+      /** @type {Array.<number>|undefined} */ (undefined),
+      ol.format.GML.RING_PARSERS, node, objectStack, this);
+  if (goog.isDef(flatLinearRing)) {
+    var flatLinearRings = /** @type {Array.<Array.<number>>} */
+        (objectStack[objectStack.length - 1]);
+    goog.asserts.assert(goog.isArray(flatLinearRings));
+    goog.asserts.assert(flatLinearRings.length > 0);
+    flatLinearRings.push(flatLinearRing);
+  }
+};
+
+
+/**
+ * @param {Node} node Node.
+ * @param {Array.<*>} objectStack Object stack.
+ * @private
+ */
+ol.format.GML.v2.prototype.outerBoundaryIsParser_ =
+    function(node, objectStack) {
+  goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
+  goog.asserts.assert(node.localName == 'outerBoundaryIs');
+  var flatLinearRing = ol.xml.pushParseAndPop(
+      /** @type {Array.<number>|undefined} */ (undefined),
+      ol.format.GML.RING_PARSERS, node, objectStack, this);
+  if (goog.isDef(flatLinearRing)) {
+    var flatLinearRings = /** @type {Array.<Array.<number>>} */
+        (objectStack[objectStack.length - 1]);
+    goog.asserts.assert(goog.isArray(flatLinearRings));
+    goog.asserts.assert(flatLinearRings.length > 0);
+    flatLinearRings[0] = flatLinearRing;
+  }
+};
+
+
+/**
+ * @const
+ * @type {Object.<string, Object.<string, ol.xml.Parser>>}
+ * @private
+ */
+ol.format.GML.v2.GEOMETRY_FLAT_COORDINATES_PARSERS_ = {
+  'http://www.opengis.net/gml' : {
+    'coordinates': ol.xml.makeReplacer(
+        ol.format.GML.v2.prototype.readFlatCoordinates_)
+  }
+};
+
+
+/**
+ * @const
+ * @type {Object.<string, Object.<string, ol.xml.Parser>>}
+ * @private
+ */
+ol.format.GML.v2.FLAT_LINEAR_RINGS_PARSERS_ = {
+  'http://www.opengis.net/gml' : {
+    'innerBoundaryIs': ol.format.GML.v2.prototype.innerBoundaryIsParser_,
+    'outerBoundaryIs': ol.format.GML.v2.prototype.outerBoundaryIsParser_
+  }
+};