jsonfile.readFile(jsonFileName, function(err, jsonObj) {
if (!err) {
console.log('\n\n\n\jxon Test - JSON ==> XML');
console.log('\n\n\n\JSON');
console.log(jsonObj);
var xml = jxon.jsToString(jsonObj);
console.log('\n\n\n\Transformed XML');
console.log(xml);
}
done();
});
function geojsontoosm(geojson, lastNodeId, lastWayId, lastRelationId) {
var features = geojson.features || (geojson.length>0 ? geojson : [geojson])
var nodes = [], nodesIndex = {},
ways = [],
relations = [];
features.forEach(function(feature) { // feature can also be a pure GeoJSON geometry object
// todo: GeometryCollection?
var properties = feature.properties || {},
geometry = feature.geometry || feature
// todo: validity check
// todo: ids if (feature.id && feature.id.match(/^(node|way|relation)\/(\d+)$/)) id = …
switch (geometry.type) {
case "Point":
processPoint(geometry.coordinates, properties, nodes, nodesIndex)
break;
case "LineString":
processLineString(geometry.coordinates, properties, ways, nodes, nodesIndex)
break;
case "Polygon":
processMultiPolygon([geometry.coordinates], properties, relations, ways, nodes, nodesIndex)
break;
case "Multipolygon":
processMultiPolygon(geometry.coordinates, properties, relations, ways, nodes, nodesIndex)
break;
default:
console.error("unknown or unsupported geometry type:", geometry.type);
}
});
//console.log(nodes, ways, relations)
function jxonTags(tags) {
var res = []
for (var k in tags) {
if (tags[k]) {
res.push({
"@k": k.replace(/gpx_trk.|gpx_wp./gi,""),
"@v": (k.match(/color|sym/))? tags[k].replace(/\W/g,'') :tags[k]
})
}
}
return res
}
var jxonData = {
osm: {
"@version": "0.6",
"@generator": "geojsontoosm",
"node": nodes.map(function(node) {
node.id = lastNodeId--
return {
"@id": node.id,
"@visible": "true",
"@version": "1",
"@lat": node.lat,
"@lon": node.lon,
// todo: meta
"tag": jxonTags(node.tags)
}
}),
"way": ways.map(function(way) {
way.id = lastWayId--
return {
"@id": way.id,
"@visible": "true",
"@version": "1",
"nd": way.nodes.map(function(nd) { return {"@ref": nd.id} }),
"tag": jxonTags(way.tags)
}
}),
"relation": relations.map(function(relation) {
relation.id = lastRelationId--
return {
"@id": relation.id,
"@visible": "true",
"@version": "1",
"member": relation.members.map(function(member) {
return {
"@type": member.type,
"@ref": member.elem.id,
"@role": member.role
}
}),
"tag": jxonTags(relation.tags)
// todo: meta
}
})
}
}
// todo: sort by id
return jxon.jsToString(jxonData)
}