GML parser.
This adds a parser (read/write) for GML v2 and v3. GML v3 is limited to the simple features profile of GML 3.1.1, just like OpenLayers 2 was. This will be the basis for the WFS parser, but it only makes sense to continue this work once feature modification (insert, update, delete) is in place in ol3. So the WFS parser will be another pull request.
This commit is contained in:
Bart van den Eijnden
6
src/ol/parser/ogc/gml.exports
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6
src/ol/parser/ogc/gml.exports
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@@ -0,0 +1,6 @@
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@exportSymbol ol.parser.ogc.GML_v2
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@exportProperty ol.parser.ogc.GML_v2.prototype.read
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@exportProperty ol.parser.ogc.GML_v2.prototype.write
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@exportSymbol ol.parser.ogc.GML_v3
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@exportProperty ol.parser.ogc.GML_v3.prototype.read
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@exportProperty ol.parser.ogc.GML_v3.prototype.write
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556
src/ol/parser/ogc/gml.js
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556
src/ol/parser/ogc/gml.js
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@@ -0,0 +1,556 @@
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goog.provide('ol.parser.ogc.GML');
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goog.require('goog.array');
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goog.require('goog.dom.xml');
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goog.require('goog.object');
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goog.require('ol.Feature');
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goog.require('ol.geom.Geometry');
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goog.require('ol.geom.GeometryCollection');
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goog.require('ol.geom.GeometryType');
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goog.require('ol.geom.LineString');
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goog.require('ol.geom.LinearRing');
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goog.require('ol.geom.MultiLineString');
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goog.require('ol.geom.MultiPoint');
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goog.require('ol.geom.MultiPolygon');
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goog.require('ol.geom.Point');
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goog.require('ol.geom.Polygon');
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goog.require('ol.parser.StringFeatureParser');
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goog.require('ol.parser.XML');
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/**
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* @constructor
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* @implements {ol.parser.StringFeatureParser}
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* @param {ol.parser.GML2Options|ol.parser.GML3Options=} opt_options
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* Optional configuration object.
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* @extends {ol.parser.XML}
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*/
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ol.parser.ogc.GML = function(opt_options) {
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if (goog.isDef(opt_options)) {
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goog.object.extend(this, opt_options);
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}
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if (!goog.isDef(this.xy)) {
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this.xy = true;
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}
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if (!goog.isDef(this.extractAttributes)) {
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this.extractAttributes = true;
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}
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this.singleFeatureType = !goog.isDef(opt_options) ||
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goog.isString(opt_options.featureType);
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this.defaultNamespaceURI = 'http://www.opengis.net/gml';
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this.readers = {
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'http://www.opengis.net/wfs': {
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'FeatureCollection': function(node, obj) {
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this.readChildNodes(node, obj);
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}
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},
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'http://www.opengis.net/gml': {
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'_inherit': function(node, obj, container) {
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// To be implemented by version specific parsers
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},
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'name': function(node, obj) {
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obj.name = this.getChildValue(node);
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},
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'featureMember': function(node, obj) {
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this.readChildNodes(node, obj);
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},
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'featureMembers': function(node, obj) {
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this.readChildNodes(node, obj);
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},
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'GeometryCollection': function(node, container) {
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var parts = [];
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this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
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[node, parts, container]);
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this.readChildNodes(node, parts);
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container.geometry = {
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type: ol.geom.GeometryType.GEOMETRYCOLLECTION,
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parts: parts
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};
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},
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'geometryMember': function(node, obj) {
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this.readChildNodes(node, obj);
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},
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'MultiPoint': function(node, container) {
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var parts = [];
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this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
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[node, parts, container]);
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this.readChildNodes(node, parts);
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container.geometry = {
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type: ol.geom.GeometryType.MULTIPOINT,
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parts: parts
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};
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},
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'pointMember': function(node, obj) {
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this.readChildNodes(node, obj);
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},
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'MultiLineString': function(node, container) {
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var parts = [];
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this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
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[node, parts, container]);
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this.readChildNodes(node, parts);
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container.geometry = {
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type: ol.geom.GeometryType.MULTILINESTRING,
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parts: parts
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};
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},
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'lineStringMember': function(node, obj) {
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this.readChildNodes(node, obj);
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},
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'MultiPolygon': function(node, container) {
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var parts = [];
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this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
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[node, parts, container]);
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this.readChildNodes(node, parts);
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container.geometry = {
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type: ol.geom.GeometryType.MULTIPOLYGON,
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parts: parts
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};
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},
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'polygonMember': function(node, obj) {
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this.readChildNodes(node, obj);
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},
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'Point': function(node, container) {
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var coordinates = [];
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this.readChildNodes(node, coordinates);
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var point = {
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type: ol.geom.GeometryType.POINT,
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coordinates: coordinates[0][0]
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};
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// in the case of a multi geometry this is parts
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if (goog.isArray(container)) {
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container.push(point);
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} else {
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container.geometry = point;
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}
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},
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'LineString': function(node, container) {
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var coordinates = [];
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this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
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[node, coordinates, container]);
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this.readChildNodes(node, coordinates);
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var linestring = {
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type: ol.geom.GeometryType.LINESTRING,
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coordinates: coordinates[0]
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};
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// in the case of a multi geometry this is parts
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if (goog.isArray(container)) {
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container.push(linestring);
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} else {
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container.geometry = linestring;
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}
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},
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'Polygon': function(node, container) {
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var obj = {outer: null, inner: []};
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this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
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[node, obj, container]);
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this.readChildNodes(node, obj);
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obj.inner.unshift(obj.outer);
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var polygon = {
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type: ol.geom.GeometryType.POLYGON,
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coordinates: obj.inner
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};
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// in the case of a multi geometry this is parts
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if (goog.isArray(container)) {
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container.push(polygon);
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} else {
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container.geometry = polygon;
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}
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},
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'LinearRing': function(node, container) {
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var coordinates = [];
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this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
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[node, coordinates, container]);
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this.readChildNodes(node, coordinates);
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if (goog.isArray(container)) {
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container.push(coordinates);
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} else {
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container.geometry = {
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type: ol.geom.GeometryType.LINEARRING,
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coordinates: coordinates[0]
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};
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}
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},
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'coordinates': function(node, coordinates) {
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var str = this.getChildValue(node).replace(
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this.regExes.trimSpace, '');
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str = str.replace(this.regExes.trimComma, ',');
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var coords;
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var cs = node.getAttribute('cs') || ',';
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var ts = node.getAttribute('ts') || this.regExes.splitSpace;
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var pointList = str.split(ts);
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var numPoints = pointList.length;
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var points = new Array(numPoints);
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for (var i = 0; i < numPoints; ++i) {
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coords = pointList[i].split(cs).map(parseFloat);
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if (this.xy) {
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points[i] = coords;
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} else {
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if (coords.length === 2) {
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points[i] = coords.reverse();
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} else if (coords.length === 3) {
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points[i] = [coords[1], coords[0], coords[2]];
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}
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}
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}
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coordinates.push(points);
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},
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'coord': function(node, coordinates) {
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var coord = {};
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if (coordinates.length === 0) {
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coordinates.push([]);
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}
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this.readChildNodes(node, coord);
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if (goog.isDef(coord.z)) {
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coordinates.push([coord.x, coord.y, coord.z]);
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} else {
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coordinates[0].push([coord.x, coord.y]);
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}
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},
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'X': function(node, coord) {
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coord.x = parseFloat(this.getChildValue(node));
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},
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'Y': function(node, coord) {
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coord.y = parseFloat(this.getChildValue(node));
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},
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'Z': function(node, coord) {
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coord.z = parseFloat(this.getChildValue(node));
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}
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}
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};
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this.featureNSReaders_ = {
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'*': function(node, obj) {
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// The node can either be named like the featureType, or it
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// can be a child of the feature:featureType. Children can be
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// geometry or attributes.
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var name;
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var local = node.localName || node.nodeName.split(':').pop();
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// Since an attribute can have the same name as the feature type
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// we only want to read the node as a feature if the parent
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// node can have feature nodes as children. In this case, the
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// obj.features property is set.
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if (obj.features) {
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if (!this.singleFeatureType &&
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(goog.array.indexOf(this.featureType, local) !== -1)) {
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name = '_typeName';
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} else if (local === this.featureType) {
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name = '_typeName';
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}
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} else {
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// Assume attribute elements have one child node and that the child
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// is a text node. Otherwise assume it is a geometry node.
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if (node.childNodes.length === 0 ||
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(node.childNodes.length === 1 &&
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node.firstChild.nodeType === 3)) {
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if (this.extractAttributes) {
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name = '_attribute';
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}
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} else {
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name = '_geometry';
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}
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}
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if (name) {
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this.readers[this.featureNS][name].apply(this, [node, obj]);
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}
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},
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'_typeName': function(node, obj) {
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var container = {properties: {}};
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this.readChildNodes(node, container);
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// look for common gml namespaced elements
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if (container.name) {
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container.properties.name = container.name;
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}
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var feature = new ol.Feature(container.properties);
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var geom = container.geometry;
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if (geom) {
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var sharedVertices = undefined;
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if (this.readFeaturesOptions_) {
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var callback = this.readFeaturesOptions_.callback;
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if (callback) {
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sharedVertices = callback(feature, geom.type);
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}
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}
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var geometry = this.createGeometry_({geometry: geom},
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sharedVertices);
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if (goog.isDef(geometry)) {
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feature.setGeometry(geometry);
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}
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}
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// TODO set feature.type and feature.namespace
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// TODO set fid
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obj.features.push(feature);
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},
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'_geometry': function(node, obj) {
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if (!this.geometryName) {
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this.geometryName = node.nodeName.split(':').pop();
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}
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this.readChildNodes(node, obj);
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},
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'_attribute': function(node, obj) {
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var local = node.localName || node.nodeName.split(':').pop();
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var value = this.getChildValue(node);
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obj.properties[local] = value;
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}
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};
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if (goog.isDef(this.featureNS)) {
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this.readers[this.featureNS] = this.featureNSReaders_;
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}
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this.writers = {
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'http://www.opengis.net/gml': {
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'featureMember': function(feature) {
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var node = this.createElementNS('gml:featureMember');
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this.writeNode('_typeName', feature, this.featureNS, node);
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return node;
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},
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'MultiPoint': function(geometry) {
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var node = this.createElementNS('gml:MultiPoint');
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for (var i = 0, ii = geometry.components.length; i < ii; ++i) {
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this.writeNode('pointMember', geometry.components[i], null, node);
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}
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return node;
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},
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'pointMember': function(geometry) {
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var node = this.createElementNS('gml:pointMember');
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this.writeNode('Point', geometry, null, node);
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return node;
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},
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'MultiLineString': function(geometry) {
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var node = this.createElementNS('gml:MultiLineString');
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for (var i = 0, ii = geometry.components.length; i < ii; ++i) {
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this.writeNode('lineStringMember', geometry.components[i], null,
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node);
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}
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return node;
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},
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'lineStringMember': function(geometry) {
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var node = this.createElementNS('gml:lineStringMember');
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this.writeNode('LineString', geometry, null, node);
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return node;
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},
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'MultiPolygon': function(geometry) {
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var node = this.createElementNS('gml:MultiPolygon');
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for (var i = 0, ii = geometry.components.length; i < ii; ++i) {
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this.writeNode('polygonMember', geometry.components[i], null, node);
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}
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return node;
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},
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'polygonMember': function(geometry) {
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var node = this.createElementNS('gml:polygonMember');
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this.writeNode('Polygon', geometry, null, node);
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return node;
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},
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'GeometryCollection': function(geometry) {
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var node = this.createElementNS('gml:GeometryCollection');
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for (var i = 0, ii = geometry.components.length; i < ii; ++i) {
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this.writeNode('geometryMember', geometry.components[i], null, node);
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}
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return node;
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},
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'geometryMember': function(geometry) {
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var node = this.createElementNS('gml:geometryMember');
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var child = this.writeNode('_geometry', geometry, this.featureNS);
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node.appendChild(child.firstChild);
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return node;
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}
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},
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'http://www.opengis.net/wfs': {
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'FeatureCollection': function(features) {
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/**
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* This is only here because GML2 only describes abstract
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* feature collections. Typically, you would not be using
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* the GML format to write wfs elements. This just provides
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* some way to write out lists of features. GML3 defines the
|
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* featureMembers element, so that is used by default instead.
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*/
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var node = this.createElementNS('wfs:FeatureCollection',
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'http://www.opengis.net/wfs');
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for (var i = 0, ii = features.length; i < ii; ++i) {
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this.writeNode('featureMember', features[i], null, node);
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}
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return node;
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}
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}
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};
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this.featureNSWiters_ = {
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'_typeName': function(feature) {
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var node = this.createElementNS('feature:' + this.featureType,
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this.featureNS);
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// TODO: https://github.com/openlayers/ol3/issues/558
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// this.setAttributeNS(node, null, 'fid', feature.fid);
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if (feature.getGeometry() !== null) {
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this.writeNode('_geometry', feature.getGeometry(), this.featureNS,
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node);
|
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}
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var attributes = feature.getAttributes();
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for (var name in attributes) {
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var value = attributes[name];
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if (goog.isDefAndNotNull(value) && !(value instanceof
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ol.geom.Geometry)) {
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this.writeNode('_attribute', {name: name, value: value},
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this.featureNS, node);
|
||||
}
|
||||
}
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return node;
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||||
},
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||||
'_geometry': function(geometry) {
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var node = this.createElementNS('feature:' + this.geometryName,
|
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this.featureNS);
|
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var type = geometry.getType(), child;
|
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if (type === ol.geom.GeometryType.POINT) {
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child = this.writeNode('Point', geometry, null, node);
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} else if (type === ol.geom.GeometryType.MULTIPOINT) {
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||||
child = this.writeNode('MultiPoint', geometry, null, node);
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||||
} else if (type === ol.geom.GeometryType.LINEARRING) {
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||||
child = this.writeNode('LinearRing', geometry.getCoordinates(), null,
|
||||
node);
|
||||
} else if (type === ol.geom.GeometryType.LINESTRING) {
|
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child = this.writeNode('LineString', geometry, null, node);
|
||||
} else if (type === ol.geom.GeometryType.MULTILINESTRING) {
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||||
child = this.writeNode('MultiLineString', geometry, null, node);
|
||||
} else if (type === ol.geom.GeometryType.POLYGON) {
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||||
child = this.writeNode('Polygon', geometry, null, node);
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||||
} else if (type === ol.geom.GeometryType.MULTIPOLYGON) {
|
||||
child = this.writeNode('MultiPolygon', geometry, null, node);
|
||||
} else if (type === ol.geom.GeometryType.GEOMETRYCOLLECTION) {
|
||||
child = this.writeNode('GeometryCollection', geometry, null, node);
|
||||
}
|
||||
if (goog.isDef(this.srsName)) {
|
||||
this.setAttributeNS(child, null, 'srsName', this.srsName);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'_attribute': function(obj) {
|
||||
var node = this.createElementNS('feature:' + obj.name, this.featureNS);
|
||||
node.appendChild(this.createTextNode(obj.value));
|
||||
return node;
|
||||
}
|
||||
};
|
||||
this.writers[this.featureNS] = this.featureNSWiters_;
|
||||
goog.base(this);
|
||||
};
|
||||
goog.inherits(ol.parser.ogc.GML, ol.parser.XML);
|
||||
|
||||
|
||||
/**
|
||||
* @param {string|Document|Element|Object} data Data to read.
|
||||
* @return {Object} An object representing the document.
|
||||
*/
|
||||
ol.parser.ogc.GML.prototype.read = function(data) {
|
||||
if (typeof data == 'string') {
|
||||
data = goog.dom.xml.loadXml(data);
|
||||
}
|
||||
if (data && data.nodeType == 9) {
|
||||
data = data.documentElement;
|
||||
}
|
||||
var obj = {features: []};
|
||||
this.readNode(data, obj, true);
|
||||
return obj;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {Element|Document} node The node to be read.
|
||||
* @param {Object} obj The object to be modified.
|
||||
* @param {boolean=} opt_first Should be set to true for the first node read.
|
||||
* This is usually the readNode call in the read method. Without this being
|
||||
* set, auto-configured properties will stick on subsequent reads.
|
||||
* @return {Object} The input object, modified (or a new one if none was
|
||||
* provided).
|
||||
*/
|
||||
ol.parser.ogc.GML.prototype.readNode = function(node, obj, opt_first) {
|
||||
// on subsequent calls of this.read(), we want to reset auto-
|
||||
// configured properties and auto-configure again.
|
||||
if (opt_first === true && this.autoConfig === true) {
|
||||
this.featureType = null;
|
||||
delete this.readers[this.featureNS];
|
||||
delete this.writers[this.featureNS];
|
||||
this.featureNS = null;
|
||||
}
|
||||
// featureType auto-configuration
|
||||
if (!this.featureNS && (!(node.namespaceURI in this.readers) &&
|
||||
node.parentNode.namespaceURI == this.defaultNamespaceURI &&
|
||||
(/^(.*:)?featureMembers?$/).test(node.parentNode.nodeName))) {
|
||||
this.featureType = node.nodeName.split(':').pop();
|
||||
this.readers[node.namespaceURI] = this.featureNSReaders_;
|
||||
this.writers[node.namespaceURI] = this.featureNSWiters_;
|
||||
this.featureNS = node.namespaceURI;
|
||||
this.autoConfig = true;
|
||||
}
|
||||
return ol.parser.XML.prototype.readNode.apply(this, [node, obj]);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @param {Object} container Geometry container.
|
||||
* @param {ol.geom.SharedVertices=} opt_vertices Shared vertices.
|
||||
* @return {ol.geom.Geometry} The geometry created.
|
||||
*/
|
||||
// TODO use a mixin since this is also used in the KML parser
|
||||
ol.parser.ogc.GML.prototype.createGeometry_ = function(container,
|
||||
opt_vertices) {
|
||||
var geometry = null, coordinates, i, ii;
|
||||
switch (container.geometry.type) {
|
||||
case ol.geom.GeometryType.POINT:
|
||||
geometry = new ol.geom.Point(container.geometry.coordinates,
|
||||
opt_vertices);
|
||||
break;
|
||||
case ol.geom.GeometryType.LINEARRING:
|
||||
geometry = new ol.geom.LinearRing(container.geometry.coordinates,
|
||||
opt_vertices);
|
||||
break;
|
||||
case ol.geom.GeometryType.LINESTRING:
|
||||
geometry = new ol.geom.LineString(container.geometry.coordinates,
|
||||
opt_vertices);
|
||||
break;
|
||||
case ol.geom.GeometryType.POLYGON:
|
||||
geometry = new ol.geom.Polygon(container.geometry.coordinates,
|
||||
opt_vertices);
|
||||
break;
|
||||
case ol.geom.GeometryType.MULTIPOINT:
|
||||
coordinates = [];
|
||||
for (i = 0, ii = container.geometry.parts.length; i < ii; i++) {
|
||||
coordinates.push(container.geometry.parts[i].coordinates);
|
||||
}
|
||||
geometry = new ol.geom.MultiPoint(coordinates, opt_vertices);
|
||||
break;
|
||||
case ol.geom.GeometryType.MULTILINESTRING:
|
||||
coordinates = [];
|
||||
for (i = 0, ii = container.geometry.parts.length; i < ii; i++) {
|
||||
coordinates.push(container.geometry.parts[i].coordinates);
|
||||
}
|
||||
geometry = new ol.geom.MultiLineString(coordinates, opt_vertices);
|
||||
break;
|
||||
case ol.geom.GeometryType.MULTIPOLYGON:
|
||||
coordinates = [];
|
||||
for (i = 0, ii = container.geometry.parts.length; i < ii; i++) {
|
||||
coordinates.push(container.geometry.parts[i].coordinates);
|
||||
}
|
||||
geometry = new ol.geom.MultiPolygon(coordinates, opt_vertices);
|
||||
break;
|
||||
case ol.geom.GeometryType.GEOMETRYCOLLECTION:
|
||||
var geometries = [];
|
||||
for (i = 0, ii = container.geometry.parts.length; i < ii; i++) {
|
||||
geometries.push(this.createGeometry_({
|
||||
geometry: container.geometry.parts[i]
|
||||
}, opt_vertices));
|
||||
}
|
||||
geometry = new ol.geom.GeometryCollection(geometries);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
return geometry;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Parse a GML document provided as a string.
|
||||
* @param {string} str GML document.
|
||||
* @param {ol.parser.ReadFeaturesOptions=} opt_options Reader options.
|
||||
* @return {Array.<ol.Feature>} Array of features.
|
||||
*/
|
||||
ol.parser.ogc.GML.prototype.readFeaturesFromString =
|
||||
function(str, opt_options) {
|
||||
this.readFeaturesOptions_ = opt_options;
|
||||
return this.read(str).features;
|
||||
};
|
||||
122
src/ol/parser/ogc/gml_v2.js
Normal file
122
src/ol/parser/ogc/gml_v2.js
Normal file
@@ -0,0 +1,122 @@
|
||||
goog.provide('ol.parser.ogc.GML_v2');
|
||||
|
||||
goog.require('goog.dom.xml');
|
||||
goog.require('goog.object');
|
||||
goog.require('ol.parser.ogc.GML');
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @constructor
|
||||
* @param {ol.parser.GML2Options=} opt_options Optional configuration object.
|
||||
* @extends {ol.parser.ogc.GML}
|
||||
*/
|
||||
ol.parser.ogc.GML_v2 = function(opt_options) {
|
||||
this.schemaLocation = 'http://www.opengis.net/gml ' +
|
||||
'http://schemas.opengis.net/gml/2.1.2/feature.xsd';
|
||||
goog.base(this, opt_options);
|
||||
goog.object.extend(this.readers['http://www.opengis.net/gml'], {
|
||||
'outerBoundaryIs': function(node, container) {
|
||||
var coordinates = [];
|
||||
this.readChildNodes(node, coordinates);
|
||||
container['outer'] = coordinates[0][0];
|
||||
},
|
||||
'innerBoundaryIs': function(node, container) {
|
||||
var coordinates = [];
|
||||
this.readChildNodes(node, coordinates);
|
||||
container.inner.push(coordinates[0][0]);
|
||||
},
|
||||
'Box': function(node, container) {
|
||||
var coordinates = [];
|
||||
this.readChildNodes(node, coordinates);
|
||||
container.bounds = [coordinates[0][0][0], coordinates[0][1][0],
|
||||
coordinates[0][0][1], coordinates[0][1][1]];
|
||||
}
|
||||
});
|
||||
goog.object.extend(this.writers['http://www.opengis.net/gml'], {
|
||||
'Point': function(geometry) {
|
||||
var node = this.createElementNS('gml:Point');
|
||||
this.writeNode('coordinates', [geometry.getCoordinates()], null, node);
|
||||
return node;
|
||||
},
|
||||
'coordinates': function(coordinates) {
|
||||
var numCoordinates = coordinates.length;
|
||||
var parts = new Array(numCoordinates);
|
||||
for (var i = 0; i < numCoordinates; ++i) {
|
||||
var coord = coordinates[i];
|
||||
var str = '';
|
||||
if (this.xy) {
|
||||
str += coord[0] + ',' + coord[1];
|
||||
} else {
|
||||
str += coord[1] + ',' + coord[0];
|
||||
}
|
||||
if (coord.length === 3) {
|
||||
str += ',' + coord[2];
|
||||
}
|
||||
parts[i] = str;
|
||||
}
|
||||
var value = (numCoordinates === 1) ? parts[0] : parts.join(' ');
|
||||
var node = this.createElementNS('gml:coordinates');
|
||||
this.setAttributeNS(node, null, 'decimal', '.');
|
||||
this.setAttributeNS(node, null, 'cs', ',');
|
||||
this.setAttributeNS(node, null, 'ts', ' ');
|
||||
node.appendChild(this.createTextNode(value));
|
||||
return node;
|
||||
},
|
||||
'LineString': function(geometry) {
|
||||
var node = this.createElementNS('gml:LineString');
|
||||
this.writeNode('coordinates', geometry.getCoordinates(), null, node);
|
||||
return node;
|
||||
},
|
||||
'Polygon': function(geometry) {
|
||||
var node = this.createElementNS('gml:Polygon');
|
||||
var coordinates = geometry.getCoordinates();
|
||||
this.writeNode('outerBoundaryIs', coordinates[0], null, node);
|
||||
for (var i = 1; i < coordinates.length; ++i) {
|
||||
this.writeNode('innerBoundaryIs', coordinates[i], null, node);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'outerBoundaryIs': function(ring) {
|
||||
var node = this.createElementNS('gml:outerBoundaryIs');
|
||||
this.writeNode('LinearRing', ring, null, node);
|
||||
return node;
|
||||
},
|
||||
'innerBoundaryIs': function(ring) {
|
||||
var node = this.createElementNS('gml:innerBoundaryIs');
|
||||
this.writeNode('LinearRing', ring, null, node);
|
||||
return node;
|
||||
},
|
||||
'LinearRing': function(ring) {
|
||||
var node = this.createElementNS('gml:LinearRing');
|
||||
this.writeNode('coordinates', ring, null, node);
|
||||
return node;
|
||||
},
|
||||
'Box': function(extent) {
|
||||
var node = this.createElementNS('gml:Box');
|
||||
this.writeNode('coordinates', [[extent.minX, extent.minY],
|
||||
[extent.maxX, extent.maxY]], null, node);
|
||||
// srsName attribute is optional for gml:Box
|
||||
if (goog.isDef(this.srsName)) {
|
||||
// TODO setAttribute or this.setAttributeNS
|
||||
node.setAttribute('srsName', this.srsName);
|
||||
}
|
||||
return node;
|
||||
}
|
||||
});
|
||||
};
|
||||
goog.inherits(ol.parser.ogc.GML_v2, ol.parser.ogc.GML);
|
||||
|
||||
|
||||
/**
|
||||
* @param {Object} obj Object structure to write out as XML.
|
||||
* @return {string} An string representing the XML document.
|
||||
*/
|
||||
ol.parser.ogc.GML_v2.prototype.write = function(obj) {
|
||||
var root = this.writeNode('FeatureCollection', obj.features,
|
||||
'http://www.opengis.net/wfs');
|
||||
this.setAttributeNS(
|
||||
root, 'http://www.w3.org/2001/XMLSchema-instance',
|
||||
'xsi:schemaLocation', this.schemaLocation);
|
||||
return this.serialize(root);
|
||||
};
|
||||
422
src/ol/parser/ogc/gml_v3.js
Normal file
422
src/ol/parser/ogc/gml_v3.js
Normal file
@@ -0,0 +1,422 @@
|
||||
goog.provide('ol.parser.ogc.GML_v3');
|
||||
|
||||
goog.require('goog.dom.xml');
|
||||
goog.require('goog.object');
|
||||
goog.require('ol.geom.GeometryType');
|
||||
goog.require('ol.parser.ogc.GML');
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @constructor
|
||||
* @param {ol.parser.GML3Options=} opt_options Optional configuration object.
|
||||
* @extends {ol.parser.ogc.GML}
|
||||
*/
|
||||
ol.parser.ogc.GML_v3 = function(opt_options) {
|
||||
this.schemaLocation = 'http://www.opengis.net/gml ' +
|
||||
'http://schemas.opengis.net/gml/3.1.1/profiles/gmlsfProfile/' +
|
||||
'1.0.0/gmlsf.xsd';
|
||||
goog.base(this, opt_options);
|
||||
if (!goog.isDef(this.surface)) {
|
||||
this.surface = false;
|
||||
}
|
||||
if (!goog.isDef(this.curve)) {
|
||||
this.curve = false;
|
||||
}
|
||||
if (!goog.isDef(this.multiCurve)) {
|
||||
this.multiCurve = true;
|
||||
}
|
||||
if (!goog.isDef(this.multiSurface)) {
|
||||
this.multiSurface = true;
|
||||
}
|
||||
this.featureNSWiters_['_geometry'] = function(geometry) {
|
||||
var node = this.createElementNS('feature:' + this.geometryName,
|
||||
this.featureNS);
|
||||
var type = geometry.getType(), child;
|
||||
if (type === ol.geom.GeometryType.POINT) {
|
||||
child = this.writeNode('Point', geometry, null, node);
|
||||
} else if (type === ol.geom.GeometryType.MULTIPOINT) {
|
||||
child = this.writeNode('MultiPoint', geometry, null, node);
|
||||
} else if (type === ol.geom.GeometryType.LINESTRING) {
|
||||
if (this.curve === true) {
|
||||
child = this.writeNode('Curve', geometry, null, node);
|
||||
} else {
|
||||
child = this.writeNode('LineString', geometry, null, node);
|
||||
}
|
||||
} else if (type === ol.geom.GeometryType.LINEARRING) {
|
||||
child = this.writeNode('LinearRing', geometry.getCoordinates(), null,
|
||||
node);
|
||||
} else if (type === ol.geom.GeometryType.MULTILINESTRING) {
|
||||
if (this.multiCurve === false) {
|
||||
child = this.writeNode('MultiLineString', geometry, null, node);
|
||||
} else {
|
||||
child = this.writeNode('MultiCurve', geometry, null, node);
|
||||
}
|
||||
} else if (type === ol.geom.GeometryType.POLYGON) {
|
||||
if (this.surface === true) {
|
||||
child = this.writeNode('Surface', geometry, null, node);
|
||||
} else {
|
||||
child = this.writeNode('Polygon', geometry, null, node);
|
||||
}
|
||||
} else if (type === ol.geom.GeometryType.MULTIPOLYGON) {
|
||||
if (this.multiSurface === false) {
|
||||
child = this.writeNode('MultiPolygon', geometry, null, node);
|
||||
} else {
|
||||
child = this.writeNode('MultiSurface', geometry, null, node);
|
||||
}
|
||||
} else if (type === ol.geom.GeometryType.GEOMETRYCOLLECTION) {
|
||||
child = this.writeNode('MultiGeometry', geometry, null, node);
|
||||
}
|
||||
if (goog.isDef(this.srsName)) {
|
||||
this.setAttributeNS(child, null, 'srsName', this.srsName);
|
||||
}
|
||||
return node;
|
||||
};
|
||||
goog.object.extend(this.readers['http://www.opengis.net/gml'], {
|
||||
'_inherit': function(node, obj, container) {
|
||||
// SRSReferenceGroup attributes
|
||||
var dim = parseInt(node.getAttribute('srsDimension'), 10) ||
|
||||
(container && container.srsDimension);
|
||||
if (dim) {
|
||||
obj.srsDimension = dim;
|
||||
}
|
||||
},
|
||||
'featureMembers': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'Curve': function(node, container) {
|
||||
var coordinates = [];
|
||||
this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
|
||||
[node, coordinates, container]);
|
||||
this.readChildNodes(node, coordinates);
|
||||
var linestring = {
|
||||
type: ol.geom.GeometryType.LINESTRING,
|
||||
coordinates: coordinates[0]
|
||||
};
|
||||
// in the case of a multi geometry this is parts
|
||||
if (goog.isArray(container)) {
|
||||
container.push(linestring);
|
||||
} else {
|
||||
container.geometry = linestring;
|
||||
}
|
||||
},
|
||||
'segments': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'LineStringSegment': function(node, container) {
|
||||
var coordinates = [];
|
||||
this.readChildNodes(node, coordinates);
|
||||
container.push(coordinates[0]);
|
||||
},
|
||||
'pos': function(node, obj) {
|
||||
var str = this.getChildValue(node).replace(
|
||||
this.regExes.trimSpace, '');
|
||||
var coords = str.split(this.regExes.splitSpace).map(parseFloat);
|
||||
if (this.xy) {
|
||||
obj.push([coords]);
|
||||
} else {
|
||||
if (coords.length === 2) {
|
||||
obj.push([coords.reverse()]);
|
||||
} else if (coords.length === 3) {
|
||||
obj.push([coords[1], coords[0], coords[2]]);
|
||||
}
|
||||
}
|
||||
},
|
||||
'posList': function(node, obj) {
|
||||
var str = this.getChildValue(node).replace(
|
||||
this.regExes.trimSpace, '');
|
||||
var coords = str.split(this.regExes.splitSpace);
|
||||
// The "dimension" attribute is from the GML 3.0.1 spec.
|
||||
var dim = obj.srsDimension ||
|
||||
parseInt(node.getAttribute('srsDimension') ||
|
||||
node.getAttribute('dimension'), 10) || 2;
|
||||
var j, x, y, z;
|
||||
var numPoints = coords.length / dim;
|
||||
var points = new Array(numPoints);
|
||||
for (var i = 0, ii = coords.length; i < ii; i += dim) {
|
||||
x = parseFloat(coords[i]);
|
||||
y = parseFloat(coords[i + 1]);
|
||||
if (dim === 3) {
|
||||
if (this.xy) {
|
||||
points[i / dim] = [x, y, parseFloat(coords[i + 2])];
|
||||
} else {
|
||||
points[i / dim] = [y, x, parseFloat(coords[i + 2])];
|
||||
}
|
||||
} else if (dim === 2) {
|
||||
if (this.xy) {
|
||||
points[i / dim] = [x, y];
|
||||
} else {
|
||||
points[i / dim] = [y, x];
|
||||
}
|
||||
}
|
||||
}
|
||||
obj.push(points);
|
||||
},
|
||||
'Surface': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'patches': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'PolygonPatch': function(node, obj) {
|
||||
this.readers[this.defaultNamespaceURI]['Polygon'].apply(this,
|
||||
[node, obj]);
|
||||
},
|
||||
'exterior': function(node, container) {
|
||||
var coordinates = [];
|
||||
this.readChildNodes(node, coordinates);
|
||||
container.outer = coordinates[0][0];
|
||||
},
|
||||
'interior': function(node, container) {
|
||||
var coordinates = [];
|
||||
this.readChildNodes(node, coordinates);
|
||||
container.inner.push(coordinates[0][0]);
|
||||
},
|
||||
'MultiCurve': function(node, container) {
|
||||
var parts = [];
|
||||
this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
|
||||
[node, parts, container]);
|
||||
this.readChildNodes(node, parts);
|
||||
container.geometry = {
|
||||
type: ol.geom.GeometryType.MULTILINESTRING,
|
||||
parts: parts
|
||||
};
|
||||
},
|
||||
'curveMember': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'MultiSurface': function(node, container) {
|
||||
var parts = [];
|
||||
this.readers[this.defaultNamespaceURI]['_inherit'].apply(this,
|
||||
[node, parts, container]);
|
||||
this.readChildNodes(node, parts);
|
||||
container.geometry = {
|
||||
type: ol.geom.GeometryType.MULTIPOLYGON,
|
||||
parts: parts
|
||||
};
|
||||
},
|
||||
'surfaceMember': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'surfaceMembers': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'pointMembers': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'lineStringMembers': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'polygonMembers': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'geometryMembers': function(node, obj) {
|
||||
this.readChildNodes(node, obj);
|
||||
},
|
||||
'Envelope': function(node, container) {
|
||||
var coordinates = [];
|
||||
this.readChildNodes(node, coordinates);
|
||||
container.bounds = [coordinates[0][0][0][0], coordinates[1][0][0][0],
|
||||
coordinates[0][0][0][1], coordinates[1][0][0][1]];
|
||||
},
|
||||
'lowerCorner': function(node, envelope) {
|
||||
var coordinates = [];
|
||||
this.readers[this.defaultNamespaceURI]['pos'].apply(this,
|
||||
[node, coordinates]);
|
||||
envelope.push(coordinates);
|
||||
},
|
||||
'upperCorner': function(node, envelope) {
|
||||
var coordinates = [];
|
||||
this.readers[this.defaultNamespaceURI]['pos'].apply(this,
|
||||
[node, coordinates]);
|
||||
envelope.push(coordinates);
|
||||
}
|
||||
});
|
||||
goog.object.extend(this.writers['http://www.opengis.net/gml'], {
|
||||
'featureMembers': function(features) {
|
||||
var node = this.createElementNS('gml:featureMembers');
|
||||
for (var i = 0, ii = features.length; i < ii; ++i) {
|
||||
this.writeNode('_typeName', features[i], this.featureNS, node);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'Point': function(geometry) {
|
||||
var node = this.createElementNS('gml:Point');
|
||||
this.writeNode('pos', geometry.getCoordinates(), null, node);
|
||||
return node;
|
||||
},
|
||||
'pos': function(point) {
|
||||
// only 2d for simple features profile
|
||||
var pos;
|
||||
if (this.xy) {
|
||||
pos = (point[0] + ' ' + point[1]);
|
||||
} else {
|
||||
pos = (point[1] + ' ' + point[0]);
|
||||
}
|
||||
var node = this.createElementNS('gml:pos');
|
||||
node.appendChild(this.createTextNode(pos));
|
||||
return node;
|
||||
},
|
||||
'LineString': function(geometry) {
|
||||
var node = this.createElementNS('gml:LineString');
|
||||
this.writeNode('posList', geometry.getCoordinates(), null, node);
|
||||
return node;
|
||||
},
|
||||
'Curve': function(geometry) {
|
||||
var node = this.createElementNS('gml:Curve');
|
||||
this.writeNode('segments', geometry, null, node);
|
||||
return node;
|
||||
},
|
||||
'segments': function(geometry) {
|
||||
var node = this.createElementNS('gml:segments');
|
||||
this.writeNode('LineStringSegment', geometry, null, node);
|
||||
return node;
|
||||
},
|
||||
'LineStringSegment': function(geometry) {
|
||||
var node = this.createElementNS('gml:LineStringSegment');
|
||||
this.writeNode('posList', geometry.getCoordinates(), null, node);
|
||||
return node;
|
||||
},
|
||||
'posList': function(points) {
|
||||
// only 2d for simple features profile
|
||||
var len = points.length;
|
||||
var parts = new Array(len);
|
||||
var point;
|
||||
for (var i = 0; i < len; ++i) {
|
||||
point = points[i];
|
||||
if (this.xy) {
|
||||
parts[i] = point[0] + ' ' + point[1];
|
||||
} else {
|
||||
parts[i] = point[1] + ' ' + point[0];
|
||||
}
|
||||
}
|
||||
var node = this.createElementNS('gml:posList');
|
||||
node.appendChild(this.createTextNode(parts.join(' ')));
|
||||
return node;
|
||||
},
|
||||
'Surface': function(geometry) {
|
||||
var node = this.createElementNS('gml:Surface');
|
||||
this.writeNode('patches', geometry, null, node);
|
||||
return node;
|
||||
},
|
||||
'patches': function(geometry) {
|
||||
var node = this.createElementNS('gml:patches');
|
||||
this.writeNode('PolygonPatch', geometry, null, node);
|
||||
return node;
|
||||
},
|
||||
'PolygonPatch': function(geometry) {
|
||||
var node = this.createElementNS('gml:PolygonPatch');
|
||||
node.setAttribute('interpolation', 'planar');
|
||||
var coordinates = geometry.getCoordinates();
|
||||
this.writeNode('exterior', coordinates[0], null, node);
|
||||
for (var i = 1, len = coordinates.length; i < len; ++i) {
|
||||
this.writeNode('interior', coordinates[i], null, node);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'Polygon': function(geometry) {
|
||||
var node = this.createElementNS('gml:Polygon');
|
||||
var coordinates = geometry.getCoordinates();
|
||||
this.writeNode('exterior', coordinates[0], null, node);
|
||||
for (var i = 1, len = coordinates.length; i < len; ++i) {
|
||||
this.writeNode('interior', coordinates[i], null, node);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'exterior': function(ring) {
|
||||
var node = this.createElementNS('gml:exterior');
|
||||
this.writeNode('LinearRing', ring, null, node);
|
||||
return node;
|
||||
},
|
||||
'interior': function(ring) {
|
||||
var node = this.createElementNS('gml:interior');
|
||||
this.writeNode('LinearRing', ring, null, node);
|
||||
return node;
|
||||
},
|
||||
'LinearRing': function(ring) {
|
||||
var node = this.createElementNS('gml:LinearRing');
|
||||
this.writeNode('posList', ring, null, node);
|
||||
return node;
|
||||
},
|
||||
'MultiCurve': function(geometry) {
|
||||
var node = this.createElementNS('gml:MultiCurve');
|
||||
for (var i = 0, len = geometry.components.length; i < len; ++i) {
|
||||
this.writeNode('curveMember', geometry.components[i], null, node);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'curveMember': function(geometry) {
|
||||
var node = this.createElementNS('gml:curveMember');
|
||||
if (this.curve) {
|
||||
this.writeNode('Curve', geometry, null, node);
|
||||
} else {
|
||||
this.writeNode('LineString', geometry, null, node);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'MultiSurface': function(geometry) {
|
||||
var node = this.createElementNS('gml:MultiSurface');
|
||||
for (var i = 0, len = geometry.components.length; i < len; ++i) {
|
||||
this.writeNode('surfaceMember', geometry.components[i], null, node);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'surfaceMember': function(polygon) {
|
||||
var node = this.createElementNS('gml:surfaceMember');
|
||||
if (this.surface) {
|
||||
this.writeNode('Surface', polygon, null, node);
|
||||
} else {
|
||||
this.writeNode('Polygon', polygon, null, node);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'Envelope': function(bounds) {
|
||||
var node = this.createElementNS('gml:Envelope');
|
||||
this.writeNode('lowerCorner', bounds, null, node);
|
||||
this.writeNode('upperCorner', bounds, null, node);
|
||||
// srsName attribute is required for gml:Envelope
|
||||
if (this.srsName) {
|
||||
node.setAttribute('srsName', this.srsName);
|
||||
}
|
||||
return node;
|
||||
},
|
||||
'lowerCorner': function(bounds) {
|
||||
// only 2d for simple features profile
|
||||
var pos;
|
||||
if (this.xy) {
|
||||
pos = (bounds.left + ' ' + bounds.bottom);
|
||||
} else {
|
||||
pos = (bounds.bottom + ' ' + bounds.left);
|
||||
}
|
||||
var node = this.createElementNS('gml:lowerCorner');
|
||||
node.appendChild(this.createTextNode(pos));
|
||||
return node;
|
||||
},
|
||||
'upperCorner': function(bounds) {
|
||||
// only 2d for simple features profile
|
||||
var pos;
|
||||
if (this.xy) {
|
||||
pos = (bounds.right + ' ' + bounds.top);
|
||||
} else {
|
||||
pos = (bounds.top + ' ' + bounds.right);
|
||||
}
|
||||
var node = this.createElementNS('gml:upperCorner');
|
||||
node.appendChild(this.createTextNode(pos));
|
||||
return node;
|
||||
}
|
||||
});
|
||||
};
|
||||
goog.inherits(ol.parser.ogc.GML_v3, ol.parser.ogc.GML);
|
||||
|
||||
|
||||
/**
|
||||
* @param {Object} obj Object structure to write out as XML.
|
||||
* @return {string} An string representing the XML document.
|
||||
*/
|
||||
ol.parser.ogc.GML_v3.prototype.write = function(obj) {
|
||||
var root = this.writeNode('featureMembers', obj.features);
|
||||
this.setAttributeNS(
|
||||
root, 'http://www.w3.org/2001/XMLSchema-instance',
|
||||
'xsi:schemaLocation', this.schemaLocation);
|
||||
return this.serialize(root);
|
||||
};
|
||||
@@ -1,5 +1,6 @@
|
||||
goog.provide('ol.parser.XML');
|
||||
|
||||
goog.require('goog.dom.xml');
|
||||
goog.require('ol.parser.Parser');
|
||||
|
||||
|
||||
@@ -246,3 +247,27 @@ ol.parser.XML.prototype.setAttributeNS = function(node, uri, name, value) {
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Serializes a node.
|
||||
*
|
||||
* @param {Element} node Element node to serialize.
|
||||
* @return {string} The serialized XML string.
|
||||
*/
|
||||
ol.parser.XML.prototype.serialize = function(node) {
|
||||
if (node.nodeType == 1) {
|
||||
// Add nodes to a document before serializing. Everything else
|
||||
// is serialized as is. This is also needed to get all namespaces
|
||||
// defined in some browsers such as Chrome (xmlns attributes).
|
||||
var doc = document.implementation.createDocument('', '', null);
|
||||
if (doc.importNode) {
|
||||
doc.appendChild(doc.importNode(node, true));
|
||||
} else {
|
||||
doc.appendChild(node);
|
||||
}
|
||||
return goog.dom.xml.serialize(doc);
|
||||
} else {
|
||||
return goog.dom.xml.serialize(node);
|
||||
}
|
||||
};
|
||||
|
||||
Reference in New Issue
Block a user