function define(f) {
|
JsonGMLParser = f();
|
}
|
importScripts('txml.js');
|
importScripts('JsonGMLParser.js');
|
|
self.addEventListener('message', function (e) {
|
var gmlParser = new JsonGMLParser(true /*extractAttributes */,
|
true /*xy */,
|
undefined /*gmlnsm*/,
|
undefined /*wfsnsm*/,
|
undefined /*featureName*/,
|
e.data.geometryFieldName);
|
var data = e.data;
|
var json, features;
|
if (data.format === 'JSON') {
|
json = JSON.parse(data.text);
|
features = json.features;
|
features.forEach(feature => {
|
feature.positions = [];
|
feature.geometry.coordinates.forEach(coordinate => {
|
if (Array.isArray(coordinate)) {
|
let positions = [];
|
coordinate.forEach(item => {
|
if (Array.isArray(item[0])) {
|
let pArr = [];
|
item.forEach(p => {
|
pArr.push(p[0], p[1], p[2])
|
})
|
positions.push(pArr);
|
} else {
|
positions.push(item[0], item[1], item[2])
|
}
|
});
|
feature.positions.push(positions);
|
}else{
|
feature.positions.push(coordinate)
|
}
|
})
|
feature.attributes = feature.properties;
|
feature.fid = feature.id;
|
feature.geometryType = feature.geometry.type.toLocaleLowerCase();
|
feature.bounds = undefined;
|
delete feature.geometry;
|
delete feature.id;
|
delete feature.properties;
|
delete feature.geometry_name;
|
delete feature.type;
|
})
|
} else {
|
json = tXml(data.text, { simplify: true });
|
features = gmlParser.read(json);
|
}
|
delete data.text;
|
data.features = features;
|
postMessage(data);
|
/*
|
load('data.json', function(xhr) {
|
var result = xhr.responseText;
|
var features = gmlParser.read(data.document);
|
postMessage({id: data.id, features: features});
|
});
|
*/
|
});
|
/*
|
//simple XHR request in pure JavaScript
|
function load(url, callback) {
|
var xhr;
|
|
if(typeof XMLHttpRequest !== 'undefined') xhr = new XMLHttpRequest();
|
else {
|
var versions = ["MSXML2.XmlHttp.5.0",
|
"MSXML2.XmlHttp.4.0",
|
"MSXML2.XmlHttp.3.0",
|
"MSXML2.XmlHttp.2.0",
|
"Microsoft.XmlHttp"]
|
|
for(var i = 0, len = versions.length; i < len; i++) {
|
try {
|
xhr = new ActiveXObject(versions[i]);
|
break;
|
}
|
catch(e){}
|
} // end for
|
}
|
|
xhr.onreadystatechange = ensureReadiness;
|
|
function ensureReadiness() {
|
if(xhr.readyState < 4) {
|
return;
|
}
|
|
if(xhr.status !== 200) {
|
return;
|
}
|
|
// all is well
|
if(xhr.readyState === 4) {
|
callback(xhr);
|
}
|
}
|
|
xhr.open('GET', url, true);
|
xhr.send('');
|
}
|
*/
|
