nst-guide / route-vector-tiles Goto Github PK

x = [2759, 2760]
y = [6326, 6327]
z = 14
x = 2759
y = 6326

request_promisify = promisify(request)
var testobject
request_promisify(url, {
  gzip: true,
  encoding: null
}).then(x => {
  testobject = x
})
typeof(testobject.body)
buffer = testobject.body
buffer[0] === 0x78 && buffer[1] === 0x9C
buffer[0] === 0x1F && buffer[1] === 0x8B
var tile = new VectorTile(new Protobuf(buffer));
tile.layers
Object.keys(tile.layers);
layer_name = 'transportation'
layers.forEach(function (layerID) {
    var layer = tile.layers[layer_name];
    i = 0
    if (layer) {
        for (var i = 0; i < layer.length; i++) {
            var feature = layer.feature(i).toGeoJSON(x, y, z);
            console.log(JSON.stringify(feature))
            var xyzBox = sphericalMercator.bbox(args.x, args.y, args.z);
            var clippedFeature = bboxClip(feature, xyzBox);
            if (layers.length > 1) feature.properties.vt_layer = layerID;
            collection.features.push(clippedFeature);
            // collection.features.push(feature);
        }
    }
});

var helpers = require("@turf/helpers");
var length = require("@turf/length").default;
var PathFinder = require("geojson-path-finder");
var combined = require("./combined.json");
var combined = require('/Users/kyle/github/mapping/vt2geojson/combined.json')

var Point = helpers.point;

// Each degree of latitude is 111km, so precision of .001 snaps vertices within 100m
var pathFinder = new PathFinder(combined, { precision: 0.00001 });

// Same line
var start = Point([-119.377431, 37.873708]);
var end = Point([-119.345603, 37.889177]);
var path = pathFinder.findPath(start, end);
console.log(JSON.stringify(helpers.lineString(path.path)));

var pathFinder = new PathFinder(combined, { precision: 0.00001 });
var start = Point([-119.35996413230896, 37.87304103829722]);
// var end = Point([-119.36515152454376, 37.872219535492945])
// var end = Point([-119.37064468860626,37.8720332139949])
var end = Point([-119.37064468860626,37.8720])
var path = pathFinder.findPath(start, end);
console.log(JSON.stringify(helpers.lineString(path.path)));