osm-p2p-xml

osm-p2p-xml

generate open street map xml from an osm-p2p-db query

example

var level = require('level')
var hyperlog = require('hyperlog')
var fdstore = require('fd-chunk-store')
var db = {
  log: level('/tmp/osm-p2p/log'),
  index: level('/tmp/osm-p2p/index')
}

var osmdb = require('osm-p2p-db')
var osm = osmdb({
  log: hyperlog(db.log, { valueEncoding: 'json' }),
  db: db.index,
  store: fdstore(4096, '/tmp/osm-p2p/tree'),
  size: 4096
})

var toxml = require('osm-p2p-xml')
var q = [
  [ 38.89958342598271, 38.90385833966776 ],
  [ -77.02514648437499, -77.01965332031249 ]
]
osm.queryStream(q)
  .pipe(toxml(q))
  .pipe(process.stdout)

output:

$ node osm.js
<?xml version="1.0" encoding="UTF-8"?><osm><bounds minlat="38.89958342598271" maxlat="38.90385833966776" minlon="-77.02514648437499" maxlon="-77.01965332031249"/><node lat="38.90094671136515" lon="-77.02313139881134" timestamp="2015-12-31T20:50:35.826Z" id="1db08fd46c5a7c01" version="334fd5b5114e0ae69c151978640cd5692c9fb639c7565ba48b0cd2700e1d8547"></node><way v="5" timestamp="2015-12-31T20:50:35.842Z" id="29ac0c8f50e630e9" version="57f9ec2913db5e568976372afa8997255fdb614cff48ca01565f2ddee3687bc8"><nd ref="1db08fd46c5a7c01"/><nd ref="8c50fa92c3ce91d7"/><nd ref="83c1be761a9f4148"/><nd ref="1db08fd46c5a7c01"/><tag k="area" v="yes"/></way><node lat="38.90068996279713" lon="-77.02327892030715" timestamp="2015-12-31T20:50:35.849Z" id="8c50fa92c3ce91d7" version="8f32080b4501459d8a904c568e2a0c7de92de435fab8c7d16ae2b39851046991"></node><node lat="38.90084129844752" lon="-77.02284037913323" timestamp="2015-12-31T20:50:35.855Z" id="83c1be761a9f4148" version="0443c3916e92250149c8086ed21b2265cb6af161dbf63a17e30a7d3c8a0cb0b1"></node></osm>

api

var toxml = require('osm-p2p-xml')

var stream = toxml(query)

Return a transform object stream that expects osm-p2p-db queryStream data as input and produces osm xml output.

Node object format:

• node.type - 'node'
• node.id - id string
• node.version - version string
• node.lat - latitude in degrees
• node.lon - longitude in degrees

Way object format:

• way.type - 'way'
• way.id - id string
• way.version - version string
• way.refs - array of node IDs

Relation object format:

• relation.type - relation.type
• relation.id - id string
• relation.version - version string
• relation.members - array of member (node, way, or relation) IDs

install

npm install osm-p2p-xml

license

BSD