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fix osmxml to read ways before the definition of nodes

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This commit is contained in:
Bin Wang
2017-09-13 11:27:51 +08:00
parent b920b78afe
commit e32e72f1a0
2 changed files with 55 additions and 22 deletions
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50
src/ol/format/osmxml.js
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@@ -71,34 +71,14 @@ ol.format.OSMXML.readNode_ = function(node, objectStack) {
* @private
*/
ol.format.OSMXML.readWay_ = function(node, objectStack) {
var options = /** @type {olx.format.ReadOptions} */ (objectStack[0]);
var id = node.getAttribute('id');
var values = ol.xml.pushParseAndPop({
id: id,
ndrefs: [],
tags: {}
}, ol.format.OSMXML.WAY_PARSERS_, node, objectStack);
var state = /** @type {Object} */ (objectStack[objectStack.length - 1]);
/** @type {Array.<number>} */
var flatCoordinates = [];
for (var i = 0, ii = values.ndrefs.length; i < ii; i++) {
var point = state.nodes[values.ndrefs[i]];
ol.array.extend(flatCoordinates, point);
}
var geometry;
if (values.ndrefs[0] == values.ndrefs[values.ndrefs.length - 1]) {
// closed way
geometry = new ol.geom.Polygon(null);
geometry.setFlatCoordinates(ol.geom.GeometryLayout.XY, flatCoordinates,
[flatCoordinates.length]);
} else {
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);
state.features.push(feature);
state.ways.push(values);
};
@@ -189,8 +169,34 @@ ol.format.OSMXML.prototype.readFeaturesFromNode = function(node, opt_options) {
if (node.localName == 'osm') {
var state = ol.xml.pushParseAndPop({
nodes: {},
ways: [],
features: []
}, ol.format.OSMXML.PARSERS_, node, [options]);
// parse nodes in ways
for (var j = 0; j < state.ways.length; j++) {
var values = /** @type {Object} */ (state.ways[j]);
/** @type {Array.<number>} */
var flatCoordinates = [];
for (var i = 0, ii = values.ndrefs.length; i < ii; i++) {
var point = state.nodes[values.ndrefs[i]];
ol.array.extend(flatCoordinates, point);
}
var geometry;
if (values.ndrefs[0] == values.ndrefs[values.ndrefs.length - 1]) {
// closed way
geometry = new ol.geom.Polygon(null);
geometry.setFlatCoordinates(ol.geom.GeometryLayout.XY, flatCoordinates,
[flatCoordinates.length]);
} else {
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(values.id);
feature.setProperties(values.tags);
state.features.push(feature);
}
if (state.features) {
return state.features;
}