mapbox-gl-regex-query
Version:
Query source data using regex
1,559 lines • 128 kB
JavaScript
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.RegexQuery = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
'use strict';
module.exports = Point;
/**
* A standalone point geometry with useful accessor, comparison, and
* modification methods.
*
* @class Point
* @param {Number} x the x-coordinate. this could be longitude or screen
* pixels, or any other sort of unit.
* @param {Number} y the y-coordinate. this could be latitude or screen
* pixels, or any other sort of unit.
* @example
* var point = new Point(-77, 38);
*/
function Point(x, y) {
this.x = x;
this.y = y;
}
Point.prototype = {
/**
* Clone this point, returning a new point that can be modified
* without affecting the old one.
* @return {Point} the clone
*/
clone: function() { return new Point(this.x, this.y); },
/**
* Add this point's x & y coordinates to another point,
* yielding a new point.
* @param {Point} p the other point
* @return {Point} output point
*/
add: function(p) { return this.clone()._add(p); },
/**
* Subtract this point's x & y coordinates to from point,
* yielding a new point.
* @param {Point} p the other point
* @return {Point} output point
*/
sub: function(p) { return this.clone()._sub(p); },
/**
* Multiply this point's x & y coordinates by point,
* yielding a new point.
* @param {Point} p the other point
* @return {Point} output point
*/
multByPoint: function(p) { return this.clone()._multByPoint(p); },
/**
* Divide this point's x & y coordinates by point,
* yielding a new point.
* @param {Point} p the other point
* @return {Point} output point
*/
divByPoint: function(p) { return this.clone()._divByPoint(p); },
/**
* Multiply this point's x & y coordinates by a factor,
* yielding a new point.
* @param {Point} k factor
* @return {Point} output point
*/
mult: function(k) { return this.clone()._mult(k); },
/**
* Divide this point's x & y coordinates by a factor,
* yielding a new point.
* @param {Point} k factor
* @return {Point} output point
*/
div: function(k) { return this.clone()._div(k); },
/**
* Rotate this point around the 0, 0 origin by an angle a,
* given in radians
* @param {Number} a angle to rotate around, in radians
* @return {Point} output point
*/
rotate: function(a) { return this.clone()._rotate(a); },
/**
* Rotate this point around p point by an angle a,
* given in radians
* @param {Number} a angle to rotate around, in radians
* @param {Point} p Point to rotate around
* @return {Point} output point
*/
rotateAround: function(a,p) { return this.clone()._rotateAround(a,p); },
/**
* Multiply this point by a 4x1 transformation matrix
* @param {Array<Number>} m transformation matrix
* @return {Point} output point
*/
matMult: function(m) { return this.clone()._matMult(m); },
/**
* Calculate this point but as a unit vector from 0, 0, meaning
* that the distance from the resulting point to the 0, 0
* coordinate will be equal to 1 and the angle from the resulting
* point to the 0, 0 coordinate will be the same as before.
* @return {Point} unit vector point
*/
unit: function() { return this.clone()._unit(); },
/**
* Compute a perpendicular point, where the new y coordinate
* is the old x coordinate and the new x coordinate is the old y
* coordinate multiplied by -1
* @return {Point} perpendicular point
*/
perp: function() { return this.clone()._perp(); },
/**
* Return a version of this point with the x & y coordinates
* rounded to integers.
* @return {Point} rounded point
*/
round: function() { return this.clone()._round(); },
/**
* Return the magitude of this point: this is the Euclidean
* distance from the 0, 0 coordinate to this point's x and y
* coordinates.
* @return {Number} magnitude
*/
mag: function() {
return Math.sqrt(this.x * this.x + this.y * this.y);
},
/**
* Judge whether this point is equal to another point, returning
* true or false.
* @param {Point} other the other point
* @return {boolean} whether the points are equal
*/
equals: function(other) {
return this.x === other.x &&
this.y === other.y;
},
/**
* Calculate the distance from this point to another point
* @param {Point} p the other point
* @return {Number} distance
*/
dist: function(p) {
return Math.sqrt(this.distSqr(p));
},
/**
* Calculate the distance from this point to another point,
* without the square root step. Useful if you're comparing
* relative distances.
* @param {Point} p the other point
* @return {Number} distance
*/
distSqr: function(p) {
var dx = p.x - this.x,
dy = p.y - this.y;
return dx * dx + dy * dy;
},
/**
* Get the angle from the 0, 0 coordinate to this point, in radians
* coordinates.
* @return {Number} angle
*/
angle: function() {
return Math.atan2(this.y, this.x);
},
/**
* Get the angle from this point to another point, in radians
* @param {Point} b the other point
* @return {Number} angle
*/
angleTo: function(b) {
return Math.atan2(this.y - b.y, this.x - b.x);
},
/**
* Get the angle between this point and another point, in radians
* @param {Point} b the other point
* @return {Number} angle
*/
angleWith: function(b) {
return this.angleWithSep(b.x, b.y);
},
/*
* Find the angle of the two vectors, solving the formula for
* the cross product a x b = |a||b|sin(θ) for θ.
* @param {Number} x the x-coordinate
* @param {Number} y the y-coordinate
* @return {Number} the angle in radians
*/
angleWithSep: function(x, y) {
return Math.atan2(
this.x * y - this.y * x,
this.x * x + this.y * y);
},
_matMult: function(m) {
var x = m[0] * this.x + m[1] * this.y,
y = m[2] * this.x + m[3] * this.y;
this.x = x;
this.y = y;
return this;
},
_add: function(p) {
this.x += p.x;
this.y += p.y;
return this;
},
_sub: function(p) {
this.x -= p.x;
this.y -= p.y;
return this;
},
_mult: function(k) {
this.x *= k;
this.y *= k;
return this;
},
_div: function(k) {
this.x /= k;
this.y /= k;
return this;
},
_multByPoint: function(p) {
this.x *= p.x;
this.y *= p.y;
return this;
},
_divByPoint: function(p) {
this.x /= p.x;
this.y /= p.y;
return this;
},
_unit: function() {
this._div(this.mag());
return this;
},
_perp: function() {
var y = this.y;
this.y = this.x;
this.x = -y;
return this;
},
_rotate: function(angle) {
var cos = Math.cos(angle),
sin = Math.sin(angle),
x = cos * this.x - sin * this.y,
y = sin * this.x + cos * this.y;
this.x = x;
this.y = y;
return this;
},
_rotateAround: function(angle, p) {
var cos = Math.cos(angle),
sin = Math.sin(angle),
x = p.x + cos * (this.x - p.x) - sin * (this.y - p.y),
y = p.y + sin * (this.x - p.x) + cos * (this.y - p.y);
this.x = x;
this.y = y;
return this;
},
_round: function() {
this.x = Math.round(this.x);
this.y = Math.round(this.y);
return this;
}
};
/**
* Construct a point from an array if necessary, otherwise if the input
* is already a Point, or an unknown type, return it unchanged
* @param {Array<Number>|Point|*} a any kind of input value
* @return {Point} constructed point, or passed-through value.
* @example
* // this
* var point = Point.convert([0, 1]);
* // is equivalent to
* var point = new Point(0, 1);
*/
Point.convert = function (a) {
if (a instanceof Point) {
return a;
}
if (Array.isArray(a)) {
return new Point(a[0], a[1]);
}
return a;
};
},{}],2:[function(require,module,exports){
module.exports.VectorTile = require('./lib/vectortile.js');
module.exports.VectorTileFeature = require('./lib/vectortilefeature.js');
module.exports.VectorTileLayer = require('./lib/vectortilelayer.js');
},{"./lib/vectortile.js":3,"./lib/vectortilefeature.js":4,"./lib/vectortilelayer.js":5}],3:[function(require,module,exports){
'use strict';
var VectorTileLayer = require('./vectortilelayer');
module.exports = VectorTile;
function VectorTile(pbf, end) {
this.layers = pbf.readFields(readTile, {}, end);
}
function readTile(tag, layers, pbf) {
if (tag === 3) {
var layer = new VectorTileLayer(pbf, pbf.readVarint() + pbf.pos);
if (layer.length) layers[layer.name] = layer;
}
}
},{"./vectortilelayer":5}],4:[function(require,module,exports){
'use strict';
var Point = require('@mapbox/point-geometry');
module.exports = VectorTileFeature;
function VectorTileFeature(pbf, end, extent, keys, values) {
// Public
this.properties = {};
this.extent = extent;
this.type = 0;
// Private
this._pbf = pbf;
this._geometry = -1;
this._keys = keys;
this._values = values;
pbf.readFields(readFeature, this, end);
}
function readFeature(tag, feature, pbf) {
if (tag == 1) feature.id = pbf.readVarint();
else if (tag == 2) readTag(pbf, feature);
else if (tag == 3) feature.type = pbf.readVarint();
else if (tag == 4) feature._geometry = pbf.pos;
}
function readTag(pbf, feature) {
var end = pbf.readVarint() + pbf.pos;
while (pbf.pos < end) {
var key = feature._keys[pbf.readVarint()],
value = feature._values[pbf.readVarint()];
feature.properties[key] = value;
}
}
VectorTileFeature.types = ['Unknown', 'Point', 'LineString', 'Polygon'];
VectorTileFeature.prototype.loadGeometry = function() {
var pbf = this._pbf;
pbf.pos = this._geometry;
var end = pbf.readVarint() + pbf.pos,
cmd = 1,
length = 0,
x = 0,
y = 0,
lines = [],
line;
while (pbf.pos < end) {
if (!length) {
var cmdLen = pbf.readVarint();
cmd = cmdLen & 0x7;
length = cmdLen >> 3;
}
length--;
if (cmd === 1 || cmd === 2) {
x += pbf.readSVarint();
y += pbf.readSVarint();
if (cmd === 1) { // moveTo
if (line) lines.push(line);
line = [];
}
line.push(new Point(x, y));
} else if (cmd === 7) {
// Workaround for https://github.com/mapbox/mapnik-vector-tile/issues/90
if (line) {
line.push(line[0].clone()); // closePolygon
}
} else {
throw new Error('unknown command ' + cmd);
}
}
if (line) lines.push(line);
return lines;
};
VectorTileFeature.prototype.bbox = function() {
var pbf = this._pbf;
pbf.pos = this._geometry;
var end = pbf.readVarint() + pbf.pos,
cmd = 1,
length = 0,
x = 0,
y = 0,
x1 = Infinity,
x2 = -Infinity,
y1 = Infinity,
y2 = -Infinity;
while (pbf.pos < end) {
if (!length) {
var cmdLen = pbf.readVarint();
cmd = cmdLen & 0x7;
length = cmdLen >> 3;
}
length--;
if (cmd === 1 || cmd === 2) {
x += pbf.readSVarint();
y += pbf.readSVarint();
if (x < x1) x1 = x;
if (x > x2) x2 = x;
if (y < y1) y1 = y;
if (y > y2) y2 = y;
} else if (cmd !== 7) {
throw new Error('unknown command ' + cmd);
}
}
return [x1, y1, x2, y2];
};
VectorTileFeature.prototype.toGeoJSON = function(x, y, z) {
var size = this.extent * Math.pow(2, z),
x0 = this.extent * x,
y0 = this.extent * y,
coords = this.loadGeometry(),
type = VectorTileFeature.types[this.type],
i, j;
function project(line) {
for (var j = 0; j < line.length; j++) {
var p = line[j], y2 = 180 - (p.y + y0) * 360 / size;
line[j] = [
(p.x + x0) * 360 / size - 180,
360 / Math.PI * Math.atan(Math.exp(y2 * Math.PI / 180)) - 90
];
}
}
switch (this.type) {
case 1:
var points = [];
for (i = 0; i < coords.length; i++) {
points[i] = coords[i][0];
}
coords = points;
project(coords);
break;
case 2:
for (i = 0; i < coords.length; i++) {
project(coords[i]);
}
break;
case 3:
coords = classifyRings(coords);
for (i = 0; i < coords.length; i++) {
for (j = 0; j < coords[i].length; j++) {
project(coords[i][j]);
}
}
break;
}
if (coords.length === 1) {
coords = coords[0];
} else {
type = 'Multi' + type;
}
var result = {
type: "Feature",
geometry: {
type: type,
coordinates: coords
},
properties: this.properties
};
if ('id' in this) {
result.id = this.id;
}
return result;
};
// classifies an array of rings into polygons with outer rings and holes
function classifyRings(rings) {
var len = rings.length;
if (len <= 1) return [rings];
var polygons = [],
polygon,
ccw;
for (var i = 0; i < len; i++) {
var area = signedArea(rings[i]);
if (area === 0) continue;
if (ccw === undefined) ccw = area < 0;
if (ccw === area < 0) {
if (polygon) polygons.push(polygon);
polygon = [rings[i]];
} else {
polygon.push(rings[i]);
}
}
if (polygon) polygons.push(polygon);
return polygons;
}
function signedArea(ring) {
var sum = 0;
for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) {
p1 = ring[i];
p2 = ring[j];
sum += (p2.x - p1.x) * (p1.y + p2.y);
}
return sum;
}
},{"@mapbox/point-geometry":1}],5:[function(require,module,exports){
'use strict';
var VectorTileFeature = require('./vectortilefeature.js');
module.exports = VectorTileLayer;
function VectorTileLayer(pbf, end) {
// Public
this.version = 1;
this.name = null;
this.extent = 4096;
this.length = 0;
// Private
this._pbf = pbf;
this._keys = [];
this._values = [];
this._features = [];
pbf.readFields(readLayer, this, end);
this.length = this._features.length;
}
function readLayer(tag, layer, pbf) {
if (tag === 15) layer.version = pbf.readVarint();
else if (tag === 1) layer.name = pbf.readString();
else if (tag === 5) layer.extent = pbf.readVarint();
else if (tag === 2) layer._features.push(pbf.pos);
else if (tag === 3) layer._keys.push(pbf.readString());
else if (tag === 4) layer._values.push(readValueMessage(pbf));
}
function readValueMessage(pbf) {
var value = null,
end = pbf.readVarint() + pbf.pos;
while (pbf.pos < end) {
var tag = pbf.readVarint() >> 3;
value = tag === 1 ? pbf.readString() :
tag === 2 ? pbf.readFloat() :
tag === 3 ? pbf.readDouble() :
tag === 4 ? pbf.readVarint64() :
tag === 5 ? pbf.readVarint() :
tag === 6 ? pbf.readSVarint() :
tag === 7 ? pbf.readBoolean() : null;
}
return value;
}
// return feature `i` from this layer as a `VectorTileFeature`
VectorTileLayer.prototype.feature = function(i) {
if (i < 0 || i >= this._features.length) throw new Error('feature index out of bounds');
this._pbf.pos = this._features[i];
var end = this._pbf.readVarint() + this._pbf.pos;
return new VectorTileFeature(this._pbf, end, this.extent, this._keys, this._values);
};
},{"./vectortilefeature.js":4}],6:[function(require,module,exports){
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
var e, m
var eLen = nBytes * 8 - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var nBits = -7
var i = isLE ? (nBytes - 1) : 0
var d = isLE ? -1 : 1
var s = buffer[offset + i]
i += d
e = s & ((1 << (-nBits)) - 1)
s >>= (-nBits)
nBits += eLen
for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
m = e & ((1 << (-nBits)) - 1)
e >>= (-nBits)
nBits += mLen
for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
if (e === 0) {
e = 1 - eBias
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity)
} else {
m = m + Math.pow(2, mLen)
e = e - eBias
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c
var eLen = nBytes * 8 - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
var i = isLE ? 0 : (nBytes - 1)
var d = isLE ? 1 : -1
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
value = Math.abs(value)
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0
e = eMax
} else {
e = Math.floor(Math.log(value) / Math.LN2)
if (value * (c = Math.pow(2, -e)) < 1) {
e--
c *= 2
}
if (e + eBias >= 1) {
value += rt / c
} else {
value += rt * Math.pow(2, 1 - eBias)
}
if (value * c >= 2) {
e++
c /= 2
}
if (e + eBias >= eMax) {
m = 0
e = eMax
} else if (e + eBias >= 1) {
m = (value * c - 1) * Math.pow(2, mLen)
e = e + eBias
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
e = 0
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
e = (e << mLen) | m
eLen += mLen
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
buffer[offset + i - d] |= s * 128
}
},{}],7:[function(require,module,exports){
'use strict';//
var Feature = function Feature(vectorTileFeature , z , x , y ) {
this.type = 'Feature';
this._vectorTileFeature = vectorTileFeature;
(vectorTileFeature )._z = z;
(vectorTileFeature )._x = x;
(vectorTileFeature )._y = y;
this.properties = vectorTileFeature.properties;
if (vectorTileFeature.id != null) {
this.id = vectorTileFeature.id;
}
};
var prototypeAccessors = { geometry: {} };
prototypeAccessors.geometry.get = function () {
if (this._geometry === undefined) {
this._geometry = this._vectorTileFeature.toGeoJSON(
(this._vectorTileFeature )._x,
(this._vectorTileFeature )._y,
(this._vectorTileFeature )._z).geometry;
}
return this._geometry;
};
prototypeAccessors.geometry.set = function (g ) {
this._geometry = g;
};
Feature.prototype.toJSON = function toJSON () {
var this$1 = this;
var json = {
geometry: this.geometry
};
for (var i in this$1) {
if (i === '_geometry' || i === '_vectorTileFeature') { continue; }
json[i] = (this$1 )[i];
}
return json;
};
Object.defineProperties( Feature.prototype, prototypeAccessors );
module.exports = Feature;
},{}],8:[function(require,module,exports){
'use strict';
module.exports = Pbf;
var ieee754 = require('ieee754');
function Pbf(buf) {
this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0);
this.pos = 0;
this.type = 0;
this.length = this.buf.length;
}
Pbf.Varint = 0; // varint: int32, int64, uint32, uint64, sint32, sint64, bool, enum
Pbf.Fixed64 = 1; // 64-bit: double, fixed64, sfixed64
Pbf.Bytes = 2; // length-delimited: string, bytes, embedded messages, packed repeated fields
Pbf.Fixed32 = 5; // 32-bit: float, fixed32, sfixed32
var SHIFT_LEFT_32 = (1 << 16) * (1 << 16),
SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32;
Pbf.prototype = {
destroy: function() {
this.buf = null;
},
// === READING =================================================================
readFields: function(readField, result, end) {
end = end || this.length;
while (this.pos < end) {
var val = this.readVarint(),
tag = val >> 3,
startPos = this.pos;
this.type = val & 0x7;
readField(tag, result, this);
if (this.pos === startPos) this.skip(val);
}
return result;
},
readMessage: function(readField, result) {
return this.readFields(readField, result, this.readVarint() + this.pos);
},
readFixed32: function() {
var val = readUInt32(this.buf, this.pos);
this.pos += 4;
return val;
},
readSFixed32: function() {
var val = readInt32(this.buf, this.pos);
this.pos += 4;
return val;
},
// 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed)
readFixed64: function() {
var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;
this.pos += 8;
return val;
},
readSFixed64: function() {
var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;
this.pos += 8;
return val;
},
readFloat: function() {
var val = ieee754.read(this.buf, this.pos, true, 23, 4);
this.pos += 4;
return val;
},
readDouble: function() {
var val = ieee754.read(this.buf, this.pos, true, 52, 8);
this.pos += 8;
return val;
},
readVarint: function(isSigned) {
var buf = this.buf,
val, b;
b = buf[this.pos++]; val = b & 0x7f; if (b < 0x80) return val;
b = buf[this.pos++]; val |= (b & 0x7f) << 7; if (b < 0x80) return val;
b = buf[this.pos++]; val |= (b & 0x7f) << 14; if (b < 0x80) return val;
b = buf[this.pos++]; val |= (b & 0x7f) << 21; if (b < 0x80) return val;
b = buf[this.pos]; val |= (b & 0x0f) << 28;
return readVarintRemainder(val, isSigned, this);
},
readVarint64: function() { // for compatibility with v2.0.1
return this.readVarint(true);
},
readSVarint: function() {
var num = this.readVarint();
return num % 2 === 1 ? (num + 1) / -2 : num / 2; // zigzag encoding
},
readBoolean: function() {
return Boolean(this.readVarint());
},
readString: function() {
var end = this.readVarint() + this.pos,
str = readUtf8(this.buf, this.pos, end);
this.pos = end;
return str;
},
readBytes: function() {
var end = this.readVarint() + this.pos,
buffer = this.buf.subarray(this.pos, end);
this.pos = end;
return buffer;
},
// verbose for performance reasons; doesn't affect gzipped size
readPackedVarint: function(arr, isSigned) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readVarint(isSigned));
return arr;
},
readPackedSVarint: function(arr) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readSVarint());
return arr;
},
readPackedBoolean: function(arr) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readBoolean());
return arr;
},
readPackedFloat: function(arr) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readFloat());
return arr;
},
readPackedDouble: function(arr) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readDouble());
return arr;
},
readPackedFixed32: function(arr) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readFixed32());
return arr;
},
readPackedSFixed32: function(arr) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readSFixed32());
return arr;
},
readPackedFixed64: function(arr) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readFixed64());
return arr;
},
readPackedSFixed64: function(arr) {
var end = readPackedEnd(this);
arr = arr || [];
while (this.pos < end) arr.push(this.readSFixed64());
return arr;
},
skip: function(val) {
var type = val & 0x7;
if (type === Pbf.Varint) while (this.buf[this.pos++] > 0x7f) {}
else if (type === Pbf.Bytes) this.pos = this.readVarint() + this.pos;
else if (type === Pbf.Fixed32) this.pos += 4;
else if (type === Pbf.Fixed64) this.pos += 8;
else throw new Error('Unimplemented type: ' + type);
},
// === WRITING =================================================================
writeTag: function(tag, type) {
this.writeVarint((tag << 3) | type);
},
realloc: function(min) {
var length = this.length || 16;
while (length < this.pos + min) length *= 2;
if (length !== this.length) {
var buf = new Uint8Array(length);
buf.set(this.buf);
this.buf = buf;
this.length = length;
}
},
finish: function() {
this.length = this.pos;
this.pos = 0;
return this.buf.subarray(0, this.length);
},
writeFixed32: function(val) {
this.realloc(4);
writeInt32(this.buf, val, this.pos);
this.pos += 4;
},
writeSFixed32: function(val) {
this.realloc(4);
writeInt32(this.buf, val, this.pos);
this.pos += 4;
},
writeFixed64: function(val) {
this.realloc(8);
writeInt32(this.buf, val & -1, this.pos);
writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);
this.pos += 8;
},
writeSFixed64: function(val) {
this.realloc(8);
writeInt32(this.buf, val & -1, this.pos);
writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);
this.pos += 8;
},
writeVarint: function(val) {
val = +val || 0;
if (val > 0xfffffff || val < 0) {
writeBigVarint(val, this);
return;
}
this.realloc(4);
this.buf[this.pos++] = val & 0x7f | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;
this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;
this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;
this.buf[this.pos++] = (val >>> 7) & 0x7f;
},
writeSVarint: function(val) {
this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2);
},
writeBoolean: function(val) {
this.writeVarint(Boolean(val));
},
writeString: function(str) {
str = String(str);
this.realloc(str.length * 4);
this.pos++; // reserve 1 byte for short string length
var startPos = this.pos;
// write the string directly to the buffer and see how much was written
this.pos = writeUtf8(this.buf, str, this.pos);
var len = this.pos - startPos;
if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);
// finally, write the message length in the reserved place and restore the position
this.pos = startPos - 1;
this.writeVarint(len);
this.pos += len;
},
writeFloat: function(val) {
this.realloc(4);
ieee754.write(this.buf, val, this.pos, true, 23, 4);
this.pos += 4;
},
writeDouble: function(val) {
this.realloc(8);
ieee754.write(this.buf, val, this.pos, true, 52, 8);
this.pos += 8;
},
writeBytes: function(buffer) {
var len = buffer.length;
this.writeVarint(len);
this.realloc(len);
for (var i = 0; i < len; i++) this.buf[this.pos++] = buffer[i];
},
writeRawMessage: function(fn, obj) {
this.pos++; // reserve 1 byte for short message length
// write the message directly to the buffer and see how much was written
var startPos = this.pos;
fn(obj, this);
var len = this.pos - startPos;
if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);
// finally, write the message length in the reserved place and restore the position
this.pos = startPos - 1;
this.writeVarint(len);
this.pos += len;
},
writeMessage: function(tag, fn, obj) {
this.writeTag(tag, Pbf.Bytes);
this.writeRawMessage(fn, obj);
},
writePackedVarint: function(tag, arr) { this.writeMessage(tag, writePackedVarint, arr); },
writePackedSVarint: function(tag, arr) { this.writeMessage(tag, writePackedSVarint, arr); },
writePackedBoolean: function(tag, arr) { this.writeMessage(tag, writePackedBoolean, arr); },
writePackedFloat: function(tag, arr) { this.writeMessage(tag, writePackedFloat, arr); },
writePackedDouble: function(tag, arr) { this.writeMessage(tag, writePackedDouble, arr); },
writePackedFixed32: function(tag, arr) { this.writeMessage(tag, writePackedFixed32, arr); },
writePackedSFixed32: function(tag, arr) { this.writeMessage(tag, writePackedSFixed32, arr); },
writePackedFixed64: function(tag, arr) { this.writeMessage(tag, writePackedFixed64, arr); },
writePackedSFixed64: function(tag, arr) { this.writeMessage(tag, writePackedSFixed64, arr); },
writeBytesField: function(tag, buffer) {
this.writeTag(tag, Pbf.Bytes);
this.writeBytes(buffer);
},
writeFixed32Field: function(tag, val) {
this.writeTag(tag, Pbf.Fixed32);
this.writeFixed32(val);
},
writeSFixed32Field: function(tag, val) {
this.writeTag(tag, Pbf.Fixed32);
this.writeSFixed32(val);
},
writeFixed64Field: function(tag, val) {
this.writeTag(tag, Pbf.Fixed64);
this.writeFixed64(val);
},
writeSFixed64Field: function(tag, val) {
this.writeTag(tag, Pbf.Fixed64);
this.writeSFixed64(val);
},
writeVarintField: function(tag, val) {
this.writeTag(tag, Pbf.Varint);
this.writeVarint(val);
},
writeSVarintField: function(tag, val) {
this.writeTag(tag, Pbf.Varint);
this.writeSVarint(val);
},
writeStringField: function(tag, str) {
this.writeTag(tag, Pbf.Bytes);
this.writeString(str);
},
writeFloatField: function(tag, val) {
this.writeTag(tag, Pbf.Fixed32);
this.writeFloat(val);
},
writeDoubleField: function(tag, val) {
this.writeTag(tag, Pbf.Fixed64);
this.writeDouble(val);
},
writeBooleanField: function(tag, val) {
this.writeVarintField(tag, Boolean(val));
}
};
function readVarintRemainder(l, s, p) {
var buf = p.buf,
h, b;
b = buf[p.pos++]; h = (b & 0x70) >> 4; if (b < 0x80) return toNum(l, h, s);
b = buf[p.pos++]; h |= (b & 0x7f) << 3; if (b < 0x80) return toNum(l, h, s);
b = buf[p.pos++]; h |= (b & 0x7f) << 10; if (b < 0x80) return toNum(l, h, s);
b = buf[p.pos++]; h |= (b & 0x7f) << 17; if (b < 0x80) return toNum(l, h, s);
b = buf[p.pos++]; h |= (b & 0x7f) << 24; if (b < 0x80) return toNum(l, h, s);
b = buf[p.pos++]; h |= (b & 0x01) << 31; if (b < 0x80) return toNum(l, h, s);
throw new Error('Expected varint not more than 10 bytes');
}
function readPackedEnd(pbf) {
return pbf.type === Pbf.Bytes ?
pbf.readVarint() + pbf.pos : pbf.pos + 1;
}
function toNum(low, high, isSigned) {
if (isSigned) {
return high * 0x100000000 + (low >>> 0);
}
return ((high >>> 0) * 0x100000000) + (low >>> 0);
}
function writeBigVarint(val, pbf) {
var low, high;
if (val >= 0) {
low = (val % 0x100000000) | 0;
high = (val / 0x100000000) | 0;
} else {
low = ~(-val % 0x100000000);
high = ~(-val / 0x100000000);
if (low ^ 0xffffffff) {
low = (low + 1) | 0;
} else {
low = 0;
high = (high + 1) | 0;
}
}
if (val >= 0x10000000000000000 || val < -0x10000000000000000) {
throw new Error('Given varint doesn\'t fit into 10 bytes');
}
pbf.realloc(10);
writeBigVarintLow(low, high, pbf);
writeBigVarintHigh(high, pbf);
}
function writeBigVarintLow(low, high, pbf) {
pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;
pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;
pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;
pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;
pbf.buf[pbf.pos] = low & 0x7f;
}
function writeBigVarintHigh(high, pbf) {
var lsb = (high & 0x07) << 4;
pbf.buf[pbf.pos++] |= lsb | ((high >>>= 3) ? 0x80 : 0); if (!high) return;
pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;
pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;
pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;
pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;
pbf.buf[pbf.pos++] = high & 0x7f;
}
function makeRoomForExtraLength(startPos, len, pbf) {
var extraLen =
len <= 0x3fff ? 1 :
len <= 0x1fffff ? 2 :
len <= 0xfffffff ? 3 : Math.ceil(Math.log(len) / (Math.LN2 * 7));
// if 1 byte isn't enough for encoding message length, shift the data to the right
pbf.realloc(extraLen);
for (var i = pbf.pos - 1; i >= startPos; i--) pbf.buf[i + extraLen] = pbf.buf[i];
}
function writePackedVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeVarint(arr[i]); }
function writePackedSVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSVarint(arr[i]); }
function writePackedFloat(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFloat(arr[i]); }
function writePackedDouble(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeDouble(arr[i]); }
function writePackedBoolean(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeBoolean(arr[i]); }
function writePackedFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFixed32(arr[i]); }
function writePackedSFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed32(arr[i]); }
function writePackedFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFixed64(arr[i]); }
function writePackedSFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed64(arr[i]); }
// Buffer code below from https://github.com/feross/buffer, MIT-licensed
function readUInt32(buf, pos) {
return ((buf[pos]) |
(buf[pos + 1] << 8) |
(buf[pos + 2] << 16)) +
(buf[pos + 3] * 0x1000000);
}
function writeInt32(buf, val, pos) {
buf[pos] = val;
buf[pos + 1] = (val >>> 8);
buf[pos + 2] = (val >>> 16);
buf[pos + 3] = (val >>> 24);
}
function readInt32(buf, pos) {
return ((buf[pos]) |
(buf[pos + 1] << 8) |
(buf[pos + 2] << 16)) +
(buf[pos + 3] << 24);
}
function readUtf8(buf, pos, end) {
var str = '';
var i = pos;
while (i < end) {
var b0 = buf[i];
var c = null; // codepoint
var bytesPerSequence =
b0 > 0xEF ? 4 :
b0 > 0xDF ? 3 :
b0 > 0xBF ? 2 : 1;
if (i + bytesPerSequence > end) break;
var b1, b2, b3;
if (bytesPerSequence === 1) {
if (b0 < 0x80) {
c = b0;
}
} else if (bytesPerSequence === 2) {
b1 = buf[i + 1];
if ((b1 & 0xC0) === 0x80) {
c = (b0 & 0x1F) << 0x6 | (b1 & 0x3F);
if (c <= 0x7F) {
c = null;
}
}
} else if (bytesPerSequence === 3) {
b1 = buf[i + 1];
b2 = buf[i + 2];
if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80) {
c = (b0 & 0xF) << 0xC | (b1 & 0x3F) << 0x6 | (b2 & 0x3F);
if (c <= 0x7FF || (c >= 0xD800 && c <= 0xDFFF)) {
c = null;
}
}
} else if (bytesPerSequence === 4) {
b1 = buf[i + 1];
b2 = buf[i + 2];
b3 = buf[i + 3];
if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {
c = (b0 & 0xF) << 0x12 | (b1 & 0x3F) << 0xC | (b2 & 0x3F) << 0x6 | (b3 & 0x3F);
if (c <= 0xFFFF || c >= 0x110000) {
c = null;
}
}
}
if (c === null) {
c = 0xFFFD;
bytesPerSequence = 1;
} else if (c > 0xFFFF) {
c -= 0x10000;
str += String.fromCharCode(c >>> 10 & 0x3FF | 0xD800);
c = 0xDC00 | c & 0x3FF;
}
str += String.fromCharCode(c);
i += bytesPerSequence;
}
return str;
}
function writeUtf8(buf, str, pos) {
for (var i = 0, c, lead; i < str.length; i++) {
c = str.charCodeAt(i); // code point
if (c > 0xD7FF && c < 0xE000) {
if (lead) {
if (c < 0xDC00) {
buf[pos++] = 0xEF;
buf[pos++] = 0xBF;
buf[pos++] = 0xBD;
lead = c;
continue;
} else {
c = lead - 0xD800 << 10 | c - 0xDC00 | 0x10000;
lead = null;
}
} else {
if (c > 0xDBFF || (i + 1 === str.length)) {
buf[pos++] = 0xEF;
buf[pos++] = 0xBF;
buf[pos++] = 0xBD;
} else {
lead = c;
}
continue;
}
} else if (lead) {
buf[pos++] = 0xEF;
buf[pos++] = 0xBF;
buf[pos++] = 0xBD;
lead = null;
}
if (c < 0x80) {
buf[pos++] = c;
} else {
if (c < 0x800) {
buf[pos++] = c >> 0x6 | 0xC0;
} else {
if (c < 0x10000) {
buf[pos++] = c >> 0xC | 0xE0;
} else {
buf[pos++] = c >> 0x12 | 0xF0;
buf[pos++] = c >> 0xC & 0x3F | 0x80;
}
buf[pos++] = c >> 0x6 & 0x3F | 0x80;
}
buf[pos++] = c & 0x3F | 0x80;
}
}
return pos;
}
},{"ieee754":6}],9:[function(require,module,exports){
//adapted from https://github.com/mapbox/mapbox-gl-js/blob/5886421ea9a5ae26797c950ec698be473fe87d17/src/style-spec/feature_filter/index.js
'use strict';
module.exports = createFilter;
var types = ['Unknown', 'Point', 'LineString', 'Polygon'];
/**
* Given a filter expressed as nested arrays, return a new function
* that evaluates whether a given feature (with a .properties or .tags property)
* passes its test.
*
* @private
* @param {Array} filter mapbox gl filter
* @returns {Function} filter-evaluating function
*/
function createFilter(filter) {
return new Function('f', ("var p = (f && f.properties || {}); return " + (compile(filter))));
}
function compile(filter) {
if (!filter) { return 'true'; }
var op = filter[0];
if (filter.length <= 1) { return op === 'any' ? 'false' : 'true'; }
var str =
op === '==' ? compileComparisonOp(filter[1], filter[2], '===', false) :
op === '!=' ? compileComparisonOp(filter[1], filter[2], '!==', false) :
op === '<' ||
op === '>' ||
op === '<=' ||
op === '>=' ? compileComparisonOp(filter[1], filter[2], op, true) :
op === '~=' ? compileRegexOp(filter[1], filter[2]) :
op === 'any' ? compileLogicalOp(filter.slice(1), '||') :
op === 'all' ? compileLogicalOp(filter.slice(1), '&&') :
op === 'none' ? compileNegation(compileLogicalOp(filter.slice(1), '||')) :
op === 'in' ? compileInOp(filter[1], filter.slice(2)) :
op === '!in' ? compileNegation(compileInOp(filter[1], filter.slice(2))) :
op === 'has' ? compileHasOp(filter[1]) :
op === '!has' ? compileNegation(compileHasOp(filter[1])) :
'true';
return ("(" + str + ")");
}
function compilePropertyReference(property) {
return property === '$type' ? 'f.type' :
property === '$id' ? 'f.id' :
("p[" + (JSON.stringify(property)) + "]");
}
function compileComparisonOp(property, value, op, checkType) {
var left = compilePropertyReference(property);
var right = property === '$type' ? types.indexOf(value) : JSON.stringify(value);
return (checkType ? ("typeof " + left + "=== typeof " + right + "&&") : '') + left + op + right;
}
function compileRegexOp(property, value) {
var left = compilePropertyReference(property);
var right = value;
return ("" + ('function(left, right) {' +
'if(!left) return false; return left.toString().match(right);' +
'}(') + left + ", " + right + ")");
}
function compileLogicalOp(expressions, op) {
return expressions.map(compile).join(op);
}
function compileInOp(property, values) {
if (property === '$type') { values = values.map(function (value) {
return types.indexOf(value);
}); }
var left = JSON.stringify(values.sort(compare));
var right = compilePropertyReference(property);
if (values.length <= 200) { return (left + ".indexOf(" + right + ") !== -1"); }
return ("" + ('function(v, a, i, j) {' +
'while (i <= j) { var m = (i + j) >> 1;' +
' if (a[m] === v) return true; if (a[m] > v) j = m - 1; else i = m + 1;' +
'}' +
'return false; }(') + right + ", " + left + ",0," + (values.length - 1) + ")");
}
function compileHasOp(property) {
return property === '$id' ? '"id" in f' : ((JSON.stringify(property)) + " in p");
}
function compileNegation(expression) {
return ("!(" + expression + ")");
}
// Comparison function to sort numbers and strings
function compare(a, b) {
return a < b ? -1 : a > b ? 1 : 0;
}
},{}],10:[function(require,module,exports){
'use strict';
var vt = require('@mapbox/vector-tile');
var Protobuf = require('pbf');
var GeoJSONFeature = require('mapbox-gl/src/util/vectortile_to_geojson');
var featureFilter = require('./feature_filter');
module.exports = {
querySourceFeatures: function querySourceFeatures(sourceID, params, map) {
var this$1 = this;
var sourceCache = map.style.sourceCaches[sourceID];
//from: https://github.com/mapbox/mapbox-gl-js/blob/5886421ea9a5ae26797c950ec698be473fe87d17/src/source/query_features.js#L25
var tiles = sourceCache.getRenderableIds().map(function (id) {
return sourceCache.getTileByID(id);
});
var result = [];
var dataTiles = {};
for (var i = 0; i < tiles.length; i++) {
var tile = tiles[i];
var dataID = tile.tileID.canonical.key;
if (!dataTiles[dataID]) {
dataTiles[dataID] = true;
this$1.queryTile(result, params, tile);
}
}
return result;
},
queryTile: function queryTile(result, params, tile) {
//from: https://github.com/mapbox/mapbox-gl-js/blob/5886421ea9a5ae26797c950ec698be473fe87d17/src/source/tile.js#L175
if (!tile.rawTileData) { return; }
if (!tile.vtLayers) {
tile.vtLayers = new vt.VectorTile(new Protobuf(tile.rawTileData)).layers;
}
var sourceLayer = params ? params.sourceLayer : '';
var layer = tile.vtLayers._geojsonTileLayer || tile.vtLayers[sourceLayer];
if (!layer) { return; }
var filter = featureFilter(params && params.filter);
var coord = { z: tile.tileID.overscaledZ, x: tile.tileID.canonical.x, y: tile.tileID.canonical.y };
for (var i = 0; i < layer.length; i++) {
var feature = layer.feature(i);
if (filter(feature)) {
var geojsonFeature = new GeoJSONFeature(feature, coord.z, coord.x, coord.y);
geojsonFeature.tile = coord;
result.push(geojsonFeature);
}
}
}
};
},{"./feature_filter":9,"@mapbox/vector-tile":2,"mapbox-gl/src/util/vectortile_to_geojson":7,"pbf":8}]},{},[10])(10)
});
//# 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e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","'use strict';\n\nmodule.exports = Point;\n\n/**\n * A standalone point geometry with useful accessor, comparison, and\n * modification methods.\n *\n * @class Point\n * @param {Number} x the x-coordinate. this could be longitude or screen\n * pixels, or any other sort of unit.\n * @param {Number} y the y-coordinate. this could be latitude or screen\n * pixels, or any other sort of unit.\n * @example\n * var point = new Point(-77, 38);\n */\nfunction Point(x, y) {\n    this.x = x;\n    this.y = y;\n}\n\nPoint.prototype = {\n\n    /**\n     * Clone this point, returning a new point that can be modified\n     * without affecting the old one.\n     * @return {Point} the clone\n     */\n    clone: function() { return new Point(this.x, this.y); },\n\n    /**\n     * Add this point's x & y coordinates to another point,\n     * yielding a new point.\n     * @param {Point} p the other point\n     * @return {Point} output point\n     */\n    add:     function(p) { return this.clone()._add(p); },\n\n    /**\n     * Subtract this point's x & y coordinates to from point,\n     * yielding a new point.\n     * @param {Point} p the other point\n     * @return {Point} output point\n     */\n    sub:     function(p) { return this.clone()._sub(p); },\n\n    /**\n     * Multiply this point's x & y coordinates by point,\n     * yielding a new point.\n     * @param {Point} p the other point\n     * @return {Point} output point\n     */\n    multByPoint:    function(p) { return this.clone()._multByPoint(p); },\n\n    /**\n     * Divide this point's x & y coordinates by point,\n     * yielding a new point.\n     * @param {Point} p the other point\n     * @return {Point} output point\n     */\n    divByPoint:     function(p) { return this.clone()._divByPoint(p); },\n\n    /**\n     * Multiply this point's x & y coordinates by a factor,\n     * yielding a new point.\n     * @param {Point} k factor\n     * @return {Point} output point\n     */\n    mult:    function(k) { return this.clone()._mult(k); },\n\n    /**\n     * Divide this point's x & y coordinates by a factor,\n     * yielding a new point.\n     * @param {Point} k factor\n     * @return {Point} output point\n     */\n    div:     function(k) { return this.clone()._div(k); },\n\n    /**\n     * Rotate this point around the 0, 0 origin by an angle a,\n     * given in radians\n     * @param {Number} a angle to rotate around, in radians\n     * @return {Point} output point\n     */\n    rotate:  function(a) { return this.clone()._rotate(a); },\n\n    /**\n     * Rotate this point around p point by an angle a,\n     * given in radians\n     * @param {Number} a angle to rotate around, in radians\n     * @param {Point} p Point to rotate around\n     * @return {Point} output point\n     */\n    rotateAround:  function(a,p) { return this.clone()._rotateAround(a,p); },\n\n    /**\n     * Multiply this point by a 4x1 transformation matrix\n     * @param {Array<Number>} m transformation matrix\n     * @return {Point} output point\n     */\n    matMult: function(m) { return this.clone()._matMult(m); },\n\n    /**\n     * Calculate this point but as a unit vector from 0, 0, meaning\n     * that the distance from the resulting point to the 0, 0\n     * coordinate will be equal to 1 and the angle from the resulting\n     * point to the 0, 0 coordinate will be the same as before.\n     * @return {Point} unit vector point\n     */\n    unit:    function() { return this.clone()._unit(); },\n\n    /**\n     * Compute a perpendicular point, where the new y coordinate\n     * is the old x coordinate and the new x coordinate is the old y\n     * coordinate multiplied by -1\n     * @return {Point} perpendicular point\n     */\n    perp:    function() { return this.clone()._perp(); },\n\n    /**\n     * Return a version of this point with the x & y coordinates\n     * rounded to integers.\n     * @return {Point} rounded point\n     */\n    round:   function() { return this.clone()._round(); },\n\n    /**\n     * Return the magitude of this point: this is the Euclidean\n     * distance from the 0, 0 coordinate to this point's x and y\n     * coordinates.\n     * @return {Number} magnitude\n     */\n    mag: function() {\n        return Math.sqrt(this.x * this.x + this.y * this.y);\n    },\n\n    /**\n     * Judge whether this point is equal to another point, returning\n     * true or false.\n     * @param {Point} other the other point\n     * @return {boolean} whether the points are equal\n     */\n    equals: function(other) {\n        return this.x === other.x &&\n               this.y === other.y;\n    },\n\n    /**\n     * Calculate the distance from this point to another point\n     * @param {Point} p the other point\n     * @return {Number} distance\n     */\n    dist: function(p) {\n        return Math.sqrt(this.distSqr(p));\n    },\n\n    /**\n     * Calculate the distance from this point to another point,\n     * without the square root step. Useful if you're comparing\n     * relative distances.\n     * @param {Point} p the other point\n     * @return {Number} distance\n     */\n    distSqr: function(p) {\n        var dx = p.x - this.x,\n            dy = p.y - this.y;\n        return dx * dx + dy * dy;\n    },\n\n    /**\n     * Get the angle from the 0, 0 coordinate to this point, in radians\n     * coordinates.\n     * @return {Number} angle\n     */\n    angle: function() {\n        return Math.atan2(this.y, this.x);\n    },\n\n    /**\n     * Get the angle from this point to another point, in radians\n     * @param {Point} b the other point\n     * @return {Number} angle\n     */\n    angleTo: function(b) {\n        return Math.atan2(this.y - b.y, this.x - b.x);\n    },\n\n    /**\n     * Get the angle between this point and another point, in radians\n     * @param {Point} b the other point\n     * @return {Number} angle\n     */\n    angleWith: function(b) {\n        return this.angleWithSep(b.x, b.y);\n    },\n\n    /*\n     * Find the angle of the two vectors, solving the formula for\n     * the cross product a x b = |a||b|sin(θ) for θ.\n     * @param {Number} x the x-coordinate\n     * @param {Number} y the y-coordinate\n     * @return {Number} the angle in radians\n     */\n    angleWithSep: function(x, y) {\n        return Math.atan2(\n            this.x * y - this.y * x,\n            this.x * x + this.y * y);\n    },\n\n    _matMult: function(m) {\n        var x = m[0] * this.x + m[1] * this.y,\n            y = m[2] * this.x + m[3] * this.y;\n        this.x = x;\n        this.y = y;\n        return this;\n    },\n\n    _add: function(p) {\n        this.x += p.x;\n        this.y += p.y;\n        return this;\n    },\n\n    _sub: function(p) {\n        this.x -= p.x;\n        this.y -= p.y;\n        return this;\n    },\n\n    _mult: function(k) {\n        this.x *= k;\n        this.y *= k;\n        return this;\n    },\n\n    _div: function(k) {\n        this.x /= k;\n        this.y /= k;\n        return this;\n    },\n\n    _multByPoint: function(p) {\n        this.x *= p.x;\n        this.y *= p.y;\n        return this;\n    },\n\n    _divByPoint: function(p) {\n        this.x /= p.x;\n        this.y /= p.y;\n        return this;\n    },\n\n    _unit: function() {\n        this._div(this.mag());\n        return this;\n    },\n\n    _perp: function() {\n        var y = this.y;\n        this.y = this.x;\n        this.x = -y;\n        return this;\n    },\n\n    _rotate: function(angle) {\n        var cos = Math.cos(angle),\n            sin = Math.sin(angle),\n            x = cos * this.x - sin * this.y,\n            y = sin * this.x + cos * this.y;\n        this.x = x;\n        this.y = y;\n        return this;\n    },\n\n    _rotateAround: function(angle, p) {\n        var cos = Math.cos(angle),\n            sin = Math.sin(angle),\n            x = p.x + cos * (this.x - p.x) - sin * (this.y - p.y),\n            y = p.y + sin * (this.x - p.x) + cos * (this.y - p.y);\n        this.x = x;\n        this.y = y;\n        return this;\n    },\n\n    _round: function() {\n        this.x = Math.round(this.x);\n        this.y = Math.round(this.y);\n        return this;\n    }\n};\n\n/**\n * Construct a point from an array if necessary, otherwise if the input\n * is already a Point, or an unknown type, return it unchanged\n * @param {Array<Number>|Point|*} a any kind of input value\n * @return {Point} constructed point, or passed-through value.\n * @example\n * // this\n * var point = Point.convert([0, 1]);\n * // is equivalent to\n * var point = new Point(0, 1);\n */\nPoint.convert = function (a) {\n    if (a instanceof Point) {\n        return a;\n    }\n    if (Array.isArray(a)) {\n        return new Point(a[0], a[1]);\n    }\n    return a;\n};\n","module.exports.VectorTile = require('./lib/vectortile.js');\nmodule.exports.VectorTileFeature = require('./lib/vectortilefeature.js');\nmodule.exports.VectorTileLayer = require('./lib/vectortilelayer.js');\n","'use strict';\n\nvar VectorTileLayer = require('./vectortilelayer');\n\nmodule.exports = VectorTile;\n\nfunction VectorTile(pbf, end) {\n    this.layers = pbf.readFields(readTile, {}, end);\n}\n\nfunction readTile(tag, layers, pbf) {\n    if (tag === 3) {\n        var layer = new VectorTileLayer(pbf, pbf.readVarint() + pbf.pos);\n        if (layer.length) layers[layer.name] = layer;\n    }\n}\n\n","'use strict';\n\nvar Point = require('@mapbox/point-geometry');\n\nmodule.exports = VectorTileFeature;\n\nfunction VectorTileFeature(pbf, end, extent, keys, values) {\n    // Public\n    this.properties = {};\n    this.extent = extent;\n    this.type = 0;\n\n    // Private\n    this._pbf = pbf;\n    this._geometry = -1;\n    this._keys = keys;\n    this._values = values;\n\n    pbf.readFields(readFeature, this, end);\n}\n\nfunction readFeature(tag, feature, pbf) {\n    if (tag == 1) feature.id = pbf.readVarint();\n    else if (tag == 2) readTag(pbf, feature);\n    else if (tag == 3) feature.type = pbf.readVarint();\n    else if (tag == 4) feature._geometry = pbf.pos;\n}\n\nfunction readTag(pbf, feature) {\n    var end = pbf.readVarint() + pbf.pos;\n\n    while (pbf.pos < end) {\n        var key = feature._keys[pbf.readVarint()],\n            value = feature._values[pbf.readVarint()];\n        feature.properties[key] = value;\n    }\n}\n\nVectorTileFeature.types = ['Unknown', 'Point', 'LineString', 'Polygon'];\n\nVectorTileFeature.prototype.loadGeometry = function() {\n    var pbf = this._pbf;\n    pbf.pos = this._geometry;\n\n    var end = pbf.readVarint() + pbf.pos,\n        cmd = 1,\n        length = 0,\n        x = 0,\n        y = 0,\n        lines = [],\n        line;\n\n    while (pbf.pos < end) {\n        if (!length) {\n            var cmdLen = pbf.readVarint();\n            cmd = cmdLen & 0x7;\n            length = cmdLen >> 3;\n        }\n\n        length--;\n\n        if (cmd === 1 || cmd === 2) {\n            x += pbf.readSVarint();\n            y += pbf.readSVarint();\n\n            if (cmd === 1) { // moveTo\n                if (line) lines.push(line);\n                line = [];\n            }\n\n            line.push(new Point(x, y));\n\n        } else if (cmd === 7) {\n\n            // Workaround for https://github.com/mapbox/mapnik-vector-tile/issues/90\n            if (line) {\n                line.push(line[0].clone()); // closePolygon\n            }\n\n        } else {\n            throw new Error('unknown command ' + cmd);\n        }\n    }\n\n    if (line) lines.push(line);\n\n    return lines;\n};\n\nVectorTileFeature.prototype.bbox = function() {\n    var pbf = this._pbf;\n    pbf.pos = this._geometry;\n\n    var end = pbf.readVarint() + pbf.pos,\n        cmd = 1,\n        length = 0,\n        x = 0,\n        y = 0,\n        x1 = Infinity,\n        x2 = -Infinity,\n        y1 = Infinity,\n        y2 = -Infinity;\n\n    while (pbf.pos < end) {\n        if (!length) {\n            var cmdLen = pbf.readVarint();\n            cmd = cmdLen & 0x7;\n            length = cmdLen >> 3;\n        }\n\n        length--;\n\n        if (cmd === 1 || cmd === 2) {\n            x += pbf.readSVarint();\n            y += pbf.readSVarint();\n            if (x < x1) x1 = x;\n            if (x > x2) x2 = x;\n            if (y < y1) y1 = y;\n            if (y > y2) y2 = y;\n\n        } else if (cmd !== 7) {\n            throw new Error('unknown command ' + cmd);\n        }\n    }\n\n    return [x1, y1, x2, y2];\n};\n\nVectorTileFeature.prototype.toGeoJSON = function(x, y, z) {\n    var size = this.extent * Math.pow(2, z),\n        x0 = this.extent * x,\n        y0 = this.extent * y,\n        coords = this.loadGeometry(),\n        type = VectorTileFeature.types[this.type],\n        i, j;\n\n    function project(line) {\n        for (var j = 0; j < line.length; j++) {\n            var p = line[j], y2 = 180 - (p.y + y0) * 360 / size;\n            line[j] = [\n                (p.x + x0) * 360 / size - 180,\n                360 / Math.PI * Math.atan(Math.exp(y2 * Math.PI / 180)) - 90\n            ];\n        }\n    }\n\n    switch (this.type) {\n    case 1:\n        var points = [];\n        for (i = 0; i < coords.length; i++) {\n            points[i] = coords[i][0];\n        }\n        coords = points;\n        project(coords);\n        break;\n\n    case 2:\n        for (i = 0; i < coords.length; i++) {\n            project(coords[i]);\n        }\n        break;\n\n    case 3:\n        coords = classifyRings(coords);\n        for (i = 0; i < coords.length; i++) {\n            for (j = 0; j < coords[i].length; j++) {\n                project(coords[i][j]);\n            }\n        }\n        break;\n    }\n\n    if (coords.length === 1) {\n        coords = coords[0];\n    } else {\n        type = 'Multi' + type;\n    }\n\n    var result = {\n        type: \"Feature\",\n        geometry: {\n            type: type,\n            coordinates: coords\n        },\n        properties: this.properties\n    };\n\n    if ('id' in this) {\n        result.id = this.id;\n    }\n\n    return result;\n};\n\n// classifies an array of rings into polygons with outer rings and holes\n\nfunction classifyRings(rings) {\n    var len = rings.length;\n\n    if (len <= 1) return [rings];\n\n    var polygons = [],\n        polygon,\n        ccw;\n\n    for (var i = 0; i < len; i++) {\n        var area = signedArea(rings[i]);\n        if (area === 0) continue;\n\n        if (ccw === undefined) ccw = area < 0;\n\n        if (ccw === area < 0) {\n            if (polygon) polygons.push(polygon);\n            polygon = [rings[i]];\n\n        } else {\n            polygon.push(rings[i]);\n        }\n    }\n    if (polygon) polygons.push(polygon);\n\n    return polygons;\n}\n\nfunction signedArea(ring) {\n    var sum = 0;\n    for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) {\n        p1 = ring[i];\n        p2 = ring[j];\n        sum += (p2.x - p1.x) * (p1.y + p2.y);\n    }\n    return sum;\n}\n","'use strict';\n\nvar VectorTileFeature = require('./vectortilefeature.js');\n\nmodule.exports = VectorTileLayer;\n\nfunction VectorTileLayer(pbf, end) {\n    // Public\n    this.version = 1;\n    this.name = null;\n    this.extent = 4096;\n    this.length = 0;\n\n    // Private\n    this._pbf = pbf;\n    this._keys = [];\n    this._values = [];\n    this._features = [];\n\n    pbf.readFields(readLayer, this, end);\n\n    this.length = this._features.length;\n}\n\nfunction readLayer(tag, layer, pbf) {\n    if (tag === 15) layer.version = pbf.readVarint();\n    else if (tag === 1) layer.name = pbf.readString();\n    else if (tag === 5) layer.extent = pbf.readVarint();\n    else if (tag === 2) layer._features.push(pbf.pos);\n    else if (tag === 3) layer._keys.push(pbf.readString());\n    else if (tag === 4) layer._values.push(readValueMessage(pbf));\n}\n\nfunction readValueMessage(pbf) {\n    var value = null,\n        end = pbf.readVarint() + pbf.pos;\n\n    while (pbf.pos < end) {\n        var tag = pbf.readVarint() >> 3;\n\n        value = tag === 1 ? pbf.readString() :\n            tag === 2 ? pbf.readFloat() :\n            tag === 3 ? pbf.readDouble() :\n            tag === 4 ? pbf.readVarint64() :\n            tag === 5 ? pbf.readVarint() :\n            tag === 6 ? pbf.readSVarint() :\n            tag === 7 ? pbf.readBoolean() : null;\n    }\n\n    return value;\n}\n\n// return feature `i` from this layer as a `VectorTileFeature`\nVectorTileLayer.prototype.feature = function(i) {\n    if (i < 0 || i >= this._features.length) throw new Error('feature index out of bounds');\n\n    this._pbf.pos = this._features[i];\n\n    var end = this._pbf.readVarint() + this._pbf.pos;\n    return new VectorTileFeature(this._pbf, end, this.extent, this._keys, this._values);\n};\n","exports.read = function (buffer, offset, isLE, mLen, nBytes) {\n  var e, m\n  var eLen = nBytes * 8 - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var nBits = -7\n  var i = isLE ? (nBytes - 1) : 0\n  var d = isLE ? -1 : 1\n  var s = buffer[offset + i]\n\n  i += d\n\n  e = s & ((1 << (-nBits)) - 1)\n  s >>= (-nBits)\n  nBits += eLen\n  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n  m = e & ((1 << (-nBits)) - 1)\n  e >>= (-nBits)\n  nBits += mLen\n  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n  if (e === 0) {\n    e = 1 - eBias\n  } else if (e === eMax) {\n    return m ? NaN : ((s ? -1 : 1) * Infinity)\n  } else {\n    m = m + Math.pow(2, mLen)\n    e = e - eBias\n  }\n  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n  var e, m, c\n  var eLen = nBytes * 8 - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n  var i = isLE ? 0 : (nBytes - 1)\n  var d = isLE ? 1 : -1\n  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n  value = Math.abs(value)\n\n  if (isNaN(value) || value === Infinity) {\n    m = isNaN(value) ? 1 : 0\n    e = eMax\n  } else {\n    e = Math.floor(Math.log(value) / Math.LN2)\n    if (value * (c = Math.pow(2, -e)) < 1) {\n      e--\n      c *= 2\n    }\n    if (e + eBias >= 1) {\n      value += rt / c\n    } else {\n      value += rt * Math.pow(2, 1 - eBias)\n    }\n    if (value * c >= 2) {\n      e++\n      c /= 2\n    }\n\n    if (e + eBias >= eMax) {\n      m = 0\n      e = eMax\n    } else if (e + eBias >= 1) {\n      m = (value * c - 1) * Math.pow(2, mLen)\n      e = e + eBias\n    } else {\n      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n      e = 0\n    }\n  }\n\n  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n  e = (e << mLen) | m\n  eLen += mLen\n  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n  buffer[offset + i - d] |= s * 128\n}\n","//      \n\nclass Feature {\n                    \n                                \n                   \n                               \n\n                                          \n\n    constructor(vectorTileFeature                   , z        , x        , y        ) {\n        this.type = 'Feature';\n\n        this._vectorTileFeature = vectorTileFeature;\n        (vectorTileFeature     )._z = z;\n        (vectorTileFeature     )._x = x;\n        (vectorTileFeature     )._y = y;\n\n        this.properties = vectorTileFeature.properties;\n\n        if (vectorTileFeature.id != null) {\n            this.id = vectorTileFeature.id;\n        }\n    }\n\n    get geometry()                   {\n        if (this._geometry === undefined) {\n            this._geometry = this._vectorTileFeature.toGeoJSON(\n                (this._vectorTileFeature     )._x,\n                (this._vectorTileFeature     )._y,\n                (this._vectorTileFeature     )._z).geometry;\n        }\n        return this._geometry;\n    }\n\n    set geometry(g                  ) {\n        this._geometry = g;\n    }\n\n    toJSON() {\n        const json = {\n            geometry: this.geometry\n        };\n        for (const i in this) {\n            if (i === '_geometry' || i === '_vectorTileFeature') continue;\n            json[i] = (this     )[i];\n        }\n        return json;\n    }\n}\n\nmodule.exports = Feature;\n","'use strict';\n\nmodule.exports = Pbf;\n\nvar ieee754 = require('ieee754');\n\nfunction Pbf(buf) {\n    this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0);\n    this.pos = 0;\n    this.type = 0;\n    this.length = this.buf.length;\n}\n\nPbf.Varint  = 0; // varint: int32, int64, uint32, uint64, sint32, sint64, bool, enum\nPbf.Fixed64 = 1; // 64-bit: double, fixed64, sfixed64\nPbf.Bytes   = 2; // length-delimited: string, bytes, embedded messages, packed repeated fields\nPbf.Fixed32 = 5; // 32-bit: float, fixed32, sfixed32\n\nvar SHIFT_LEFT_32 = (1 << 16) * (1 << 16),\n    SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32;\n\nPbf.prototype = {\n\n    destroy: function() {\n        this.buf = null;\n    },\n\n    // === READING =================================================================\n\n    readFields: function(readField, result, end) {\n        end = end || this.length;\n\n        while (this.pos < end) {\n            var val = this.readVarint(),\n                tag = val >> 3,\n                startPos = this.pos;\n\n            this.type = val & 0x7;\n            readField(tag, result, this);\n\n            if (this.pos === startPos) this.skip(val);\n        }\n        return result;\n    },\n\n    readMessage: function(readField, result) {\n        return this.readFields(readField, result, this.readVarint() + this.pos);\n    },\n\n    readFixed32: function() {\n        var val = readUInt32(this.buf, this.pos);\n        this.pos += 4;\n        return val;\n    },\n\n    readSFixed32: function() {\n        var val = readInt32(this.buf, this.pos);\n        this.pos += 4;\n        return val;\n    },\n\n    // 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed)\n\n    readFixed64: function() {\n        var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;\n        this.pos += 8;\n        return val;\n    },\n\n    readSFixed64: function() {\n        var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;\n        this.pos += 8;\n        return val;\n    },\n\n    readFloat: function() {\n        var val = ieee754.read(this.buf, this.pos, true, 23, 4);\n        this.pos += 4;\n        return val;\n    },\n\n    readDouble: function() {\n        var val = ieee754.read(this.buf, this.pos, true, 52, 8);\n        this.pos += 8;\n        return val;\n    },\n\n    readVarint: function(isSigned) {\n        var buf = this.buf,\n            val, b;\n\n        b = buf[this.pos++]; val  =  b & 0x7f;        if (b < 0x80) return val;\n        b = buf[this.pos++]; val |= (b & 0x7f) << 7;  if (b < 0x80) return val;\n        b = buf[this.pos++]; val |= (b & 0x7f) << 14; if (b < 0x80) return val;\n        b = buf[this.pos++]; val |= (b & 0x7f) << 21; if (b < 0x80) return val;\n        b = buf[this.pos];   val |= (b & 0x0f) << 28;\n\n        return readVarintRemainder(val, isSigned, this);\n    },\n\n    readVarint64: function() { // for compatibility with v2.0.1\n        return this.readVarint(true);\n    },\n\n    readSVarint: function() {\n        var num = this.readVarint();\n        return num % 2 === 1 ? (num + 1) / -2 : num / 2; // zigzag encoding\n    },\n\n    readBoolean: function() {\n        return Boolean(this.readVarint());\n    },\n\n    readString: function() {\n        var end = this.readVarint() + this.pos,\n            str = readUtf8(this.buf, this.pos, end);\n        this.pos = end;\n        return str;\n    },\n\n    readBytes: function() {\n        var end = this.readVarint() + this.pos,\n            buffer = this.buf.subarray(this.pos, end);\n        this.pos = end;\n        return buffer;\n    },\n\n    // verbose for performance reasons; doesn't affect gzipped size\n\n    readPackedVarint: function(arr, isSigned) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readVarint(isSigned));\n        return arr;\n    },\n    readPackedSVarint: function(arr) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readSVarint());\n        return arr;\n    },\n    readPackedBoolean: function(arr) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readBoolean());\n        return arr;\n    },\n    readPackedFloat: function(arr) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readFloat());\n        return arr;\n    },\n    readPackedDouble: function(arr) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readDouble());\n        return arr;\n    },\n    readPackedFixed32: function(arr) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readFixed32());\n        return arr;\n    },\n    readPackedSFixed32: function(arr) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readSFixed32());\n        return arr;\n    },\n    readPackedFixed64: function(arr) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readFixed64());\n        return arr;\n    },\n    readPackedSFixed64: function(arr) {\n        var end = readPackedEnd(this);\n        arr = arr || [];\n        while (this.pos < end) arr.push(this.readSFixed64());\n        return arr;\n    },\n\n    skip: function(val) {\n        var type = val & 0x7;\n        if (type === Pbf.Varint) while (this.buf[this.pos++] > 0x7f) {}\n        else if (type === Pbf.Bytes) this.pos = this.readVarint() + this.pos;\n        else if (type === Pbf.Fixed32) this.pos += 4;\n        else if (type === Pbf.Fixed64) this.pos += 8;\n        else throw new Error('Unimplemented type: ' + type);\n    },\n\n    // === WRITING =================================================================\n\n    writeTag: function(tag, type) {\n        this.writeVarint((tag << 3) | type);\n    },\n\n    realloc: function(min) {\n        var length = this.length || 16;\n\n        while (length < this.pos + min) length *= 2;\n\n        if (length !== this.length) {\n            var buf = new Uint8Array(length);\n            buf.set(this.buf);\n            this.buf = buf;\n            this.length = length;\n        }\n    },\n\n    finish: function() {\n        this.length = this.pos;\n        this.pos = 0;\n        return this.buf.subarray(0, this.length);\n    },\n\n    writeFixed32: function(val) {\n        this.realloc(4);\n        writeInt32(this.buf, val, this.pos);\n        this.pos += 4;\n    },\n\n    writeSFixed32: function(val) {\n        this.realloc(4);\n        writeInt32(this.buf, val, this.pos);\n        this.pos += 4;\n    },\n\n    writeFixed64: function(val) {\n        this.realloc(8);\n        writeInt32(this.buf, val & -1, this.pos);\n        writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);\n        this.pos += 8;\n    },\n\n    writeSFixed64: function(val) {\n        this.realloc(8);\n        writeInt32(this.buf, val & -1, this.pos);\n        writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);\n        this.pos += 8;\n    },\n\n    writeVarint: function(val) {\n        val = +val || 0;\n\n        if (val > 0xfffffff || val < 0) {\n            writeBigVarint(val, this);\n            return;\n        }\n\n        this.realloc(4);\n\n        this.buf[this.pos++] =           val & 0x7f  | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n        this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n        this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n        this.buf[this.pos++] =   (val >>> 7) & 0x7f;\n    },\n\n    writeSVarint: function(val) {\n        this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2);\n    },\n\n    writeBoolean: function(val) {\n        this.writeVarint(Boolean(val));\n    },\n\n    writeString: function(str) {\n        str = String(str);\n        this.realloc(str.length * 4);\n\n        this.pos++; // reserve 1 byte for short string length\n\n        var startPos = this.pos;\n        // write the string directly to the buffer and see how much was written\n        this.pos = writeUtf8(this.buf, str, this.pos);\n        var len = this.pos - startPos;\n\n        if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);\n\n        // finally, write the message length in the reserved place and restore the position\n        this.pos = startPos - 1;\n        this.writeVarint(len);\n        this.pos += len;\n    },\n\n    writeFloat: function(val) {\n        this.realloc(4);\n        ieee754.write(this.buf, val, this.pos, true, 23, 4);\n        this.pos += 4;\n    },\n\n    writeDouble: function(val) {\n        this.realloc(8);\n        ieee754.write(this.buf, val, this.pos, true, 52, 8);\n        this.pos += 8;\n    },\n\n    writeBytes: function(buffer) {\n        var len = buffer.length;\n        this.writeVarint(len);\n        this.realloc(len);\n        for (var i = 0; i < len; i++) this.buf[this.pos++] = buffer[i];\n    },\n\n    writeRawMessage: function(fn, obj) {\n        this.pos++; // reserve 1 byte for short message length\n\n        // write the message directly to the buffer and see how much was written\n        var startPos = this.pos;\n        fn(obj, this);\n        var len = this.pos - startPos;\n\n        if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);\n\n        // finally, write the message length in the reserved place and restore the position\n        this.pos = startPos - 1;\n        this.writeVarint(len);\n        this.pos += len;\n    },\n\n    writeMessage: function(tag, fn, obj) {\n        this.writeTag(tag, Pbf.Bytes);\n        this.writeRawMessage(fn, obj);\n    },\n\n    writePackedVarint:   function(tag, arr) { this.writeMessage(tag, writePackedVarint, arr);   },\n    writePackedSVarint:  function(tag, arr) { this.writeMessage(tag, writePackedSVarint, arr);  },\n    writePackedBoolean:  function(tag, arr) { this.writeMessage(tag, writePackedBoolean, arr);  },\n    writePackedFloat:    function(tag, arr) { this.writeMessage(tag, writePackedFloat, arr);    },\n    writePackedDouble:   function(tag, arr) { this.writeMessage(tag, writePackedDouble, arr);   },\n    writePackedFixed32:  function(tag, arr) { this.writeMessage(tag, writePackedFixed32, arr);  },\n    writePackedSFixed32: function(tag, arr) { this.writeMessage(tag, writePackedSFixed32, arr); },\n    writePackedFixed64:  function(tag, arr) { this.writeMessage(tag, writePackedFixed64, arr);  },\n    writePackedSFixed64: function(tag, arr) { this.writeMessage(tag, writePackedSFixed64, arr); },\n\n    writeBytesField: function(tag, buffer) {\n        this.writeTag(tag, Pbf.Bytes);\n        this.writeBytes(buffer);\n    },\n    writeFixed32Field: function(tag, val) {\n        this.writeTag(tag, Pbf.Fixed32);\n        this.writeFixed32(val);\n    },\n    writeSFixed32Field: function(tag, val) {\n        this.writeTag(tag, Pbf.Fixed32);\n        this.writeSFixed32(val);\n    },\n    writeFixed64Field: function(tag, val) {\n        this.writeTag(tag, Pbf.Fixed64);\n        this.writeFixed64(val);\n    },\n    writeSFixed64Field: function(tag, val) {\n        this.writeTag(tag, Pbf.Fixed64);\n        this.writeSFixed64(val);\n    },\n    writeVarintField: function(tag, val) {\n        this.writeTag(tag, Pbf.Varint);\n        this.writeVarint(val);\n    },\n    writeSVarintField: function(tag, val) {\n        this.writeTag(tag, Pbf.Varint);\n        this.writeSVarint(val);\n    },\n    writeStringField: function(tag, str) {\n        this.writeTag(tag, Pbf.Bytes);\n        this.writeString(str);\n    },\n    writeFloatField: function(tag, val) {\n        this.writeTag(tag, Pbf.Fixed32);\n        this.writeFloat(val);\n    },\n    writeDoubleField: function(tag, val) {\n        this.writeTag(tag, Pbf.Fixed64);\n        this.writeDouble(val);\n    },\n    writeBooleanField: function(tag, val) {\n        this.writeVarintField(tag, Boolean(val));\n    }\n};\n\nfunction readVarintRemainder(l, s, p) {\n    var buf = p.buf,\n        h, b;\n\n    b = buf[p.pos++]; h  = (b & 0x70) >> 4;  if (b < 0x80) return toNum(l, h, s);\n    b = buf[p.pos++]; h |= (b & 0x7f) << 3;  if (b < 0x80) return toNum(l, h, s);\n    b = buf[p.pos++]; h |= (b & 0x7f) << 10; if (b < 0x80) return toNum(l, h, s);\n    b = buf[p.pos++]; h |= (b & 0x7f) << 17; if (b < 0x80) return toNum(l, h, s);\n    b = buf[p.pos++]; h |= (b & 0x7f) << 24; if (b < 0x80) return toNum(l, h, s);\n    b = buf[p.pos++]; h |= (b & 0x01) << 31; if (b < 0x80) return toNum(l, h, s);\n\n    throw new Error('Expected varint not more than 10 bytes');\n}\n\nfunction readPackedEnd(pbf) {\n    return pbf.type === Pbf.Bytes ?\n        pbf.readVarint() + pbf.pos : pbf.pos + 1;\n}\n\nfunction toNum(low, high, isSigned) {\n    if (isSigned) {\n        return high * 0x100000000 + (low >>> 0);\n    }\n\n    return ((high >>> 0) * 0x100000000) + (low >>> 0);\n}\n\nfunction writeBigVarint(val, pbf) {\n    var low, high;\n\n    if (val >= 0) {\n        low  = (val % 0x100000000) | 0;\n        high = (val / 0x100000000) | 0;\n    } else {\n        low  = ~(-val % 0x100000000);\n        high = ~(-val / 0x100000000);\n\n        if (low ^ 0xffffffff) {\n            low = (low + 1) | 0;\n        } else {\n            low = 0;\n            high = (high + 1) | 0;\n        }\n    }\n\n    if (val >= 0x10000000000000000 || val < -0x10000000000000000) {\n        throw new Error('Given varint doesn\\'t fit into 10 bytes');\n    }\n\n    pbf.realloc(10);\n\n    writeBigVarintLow(low, high, pbf);\n    writeBigVarintHigh(high, pbf);\n}\n\nfunction writeBigVarintLow(low, high, pbf) {\n    pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n    pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n    pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n    pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n    pbf.buf[pbf.pos]   = low & 0x7f;\n}\n\nfunction writeBigVarintHigh(high, pbf) {\n    var lsb = (high & 0x07) << 4;\n\n    pbf.buf[pbf.pos++] |= lsb         | ((high >>>= 3) ? 0x80 : 0); if (!high) return;\n    pbf.buf[pbf.pos++]  = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n    pbf.buf[pbf.pos++]  = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n    pbf.buf[pbf.pos++]  = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n    pbf.buf[pbf.pos++]  = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n    pbf.buf[pbf.pos++]  = high & 0x7f;\n}\n\nfunction makeRoomForExtraLength(startPos, len, pbf) {\n    var extraLen =\n        len <= 0x3fff ? 1 :\n        len <= 0x1fffff ? 2 :\n        len <= 0xfffffff ? 3 : Math.ceil(Math.log(len) / (Math.LN2 * 7));\n\n    // if 1 byte isn't enough for encoding message length, shift the data to the right\n    pbf.realloc(extraLen);\n    for (var i = pbf.pos - 1; i >= startPos; i--) pbf.buf[i + extraLen] = pbf.buf[i];\n}\n\nfunction writePackedVarint(arr, pbf)   { for (var i = 0; i < arr.length; i++) pbf.writeVarint(arr[i]);   }\nfunction writePackedSVarint(arr, pbf)  { for (var i = 0; i < arr.length; i++) pbf.writeSVarint(arr[i]);  }\nfunction writePackedFloat(arr, pbf)    { for (var i = 0; i < arr.length; i++) pbf.writeFloat(arr[i]);    }\nfunction writePackedDouble(arr, pbf)   { for (var i = 0; i < arr.length; i++) pbf.writeDouble(arr[i]);   }\nfunction writePackedBoolean(arr, pbf)  { for (var i = 0; i < arr.length; i++) pbf.writeBoolean(arr[i]);  }\nfunction writePackedFixed32(arr, pbf)  { for (var i = 0; i < arr.length; i++) pbf.writeFixed32(arr[i]);  }\nfunction writePackedSFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed32(arr[i]); }\nfunction writePackedFixed64(arr, pbf)  { for (var i = 0; i < arr.length; i++) pbf.writeFixed64(arr[i]);  }\nfunction writePackedSFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed64(arr[i]); }\n\n// Buffer code below from https://github.com/feross/buffer, MIT-licensed\n\nfunction readUInt32(buf, pos) {\n    return ((buf[pos]) |\n        (buf[pos + 1] << 8) |\n        (buf[pos + 2] << 16)) +\n        (buf[pos + 3] * 0x1000000);\n}\n\nfunction writeInt32(buf, val, pos) {\n    buf[pos] = val;\n    buf[pos + 1] = (val >>> 8);\n    buf[pos + 2] = (val >>> 16);\n    buf[pos + 3] = (val >>> 24);\n}\n\nfunction readInt32(buf, pos) {\n    return ((buf[pos]) |\n        (buf[pos + 1] << 8) |\n        (buf[pos + 2] << 16)) +\n        (buf[pos + 3] << 24);\n}\n\nfunction readUtf8(buf, pos, end) {\n    var str = '';\n    var i = pos;\n\n    while (i < end) {\n        var b0 = buf[i];\n        var c = null; // codepoint\n        var bytesPerSequence =\n            b0 > 0xEF ? 4 :\n            b0 > 0xDF ? 3 :\n            b0 > 0xBF ? 2 : 1;\n\n        if (i + bytesPerSequence > end) break;\n\n        var b1, b2, b3;\n\n        if (bytesPerSequence === 1) {\n            if (b0 < 0x80) {\n                c = b0;\n            }\n        } else if (bytesPerSequence === 2) {\n            b1 = buf[i + 1];\n            if ((b1 & 0xC0) === 0x80) {\n                c = (b0 & 0x1F) << 0x6 | (b1 & 0x3F);\n                if (c <= 0x7F) {\n                    c = null;\n                }\n            }\n        } else if (bytesPerSequence === 3) {\n            b1 = buf[i + 1];\n            b2 = buf[i + 2];\n            if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80) {\n                c = (b0 & 0xF) << 0xC | (b1 & 0x3F) << 0x6 | (b2 & 0x3F);\n                if (c <= 0x7FF || (c >= 0xD800 && c <= 0xDFFF)) {\n                    c = null;\n                }\n            }\n        } else if (bytesPerSequence === 4) {\n            b1 = buf[i + 1];\n            b2 = buf[i + 2];\n            b3 = buf[i + 3];\n            if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {\n                c = (b0 & 0xF) << 0x12 | (b1 & 0x3F) << 0xC | (b2 & 0x3F) << 0x6 | (b3 & 0x3F);\n                if (c <= 0xFFFF || c >= 0x110000) {\n                    c = null;\n                }\n            }\n        }\n\n        if (c === null) {\n            c = 0xFFFD;\n            bytesPerSequence = 1;\n\n        } else if (c > 0xFFFF) {\n            c -= 0x10000;\n            str += String.fromCharCode(c >>> 10 & 0x3FF | 0xD800);\n            c = 0xDC00 | c & 0x3FF;\n        }\n\n        str += String.fromCharCode(c);\n        i += bytesPerSequence;\n    }\n\n    return str;\n}\n\nfunction writeUtf8(buf, str, pos) {\n    for (var i = 0, c, lead; i < str.length; i++) {\n        c = str.charCodeAt(i); // code point\n\n        if (c > 0xD7FF && c < 0xE000) {\n            if (lead) {\n                if (c < 0xDC00) {\n                    buf[pos++] = 0xEF;\n                    buf[pos++] = 0xBF;\n                    buf[pos++] = 0xBD;\n                    lead = c;\n                    continue;\n                } else {\n                    c = lead - 0xD800 << 10 | c - 0xDC00 | 0x10000;\n                    lead = null;\n                }\n            } else {\n                if (c > 0xDBFF || (i + 1 === str.length)) {\n                    buf[pos++] = 0xEF;\n                    buf[pos++] = 0xBF;\n                    buf[pos++] = 0xBD;\n                } else {\n                    lead = c;\n                }\n                continue;\n            }\n        } else if (lead) {\n            buf[pos++] = 0xEF;\n            buf[pos++] = 0xBF;\n            buf[pos++] = 0xBD;\n            lead = null;\n        }\n\n        if (c < 0x80) {\n            buf[pos++] = c;\n        } else {\n            if (c < 0x800) {\n                buf[pos++] = c >> 0x6 | 0xC0;\n            } else {\n                if (c < 0x10000) {\n                    buf[pos++] = c >> 0xC | 0xE0;\n                } else {\n                    buf[pos++] = c >> 0x12 | 0xF0;\n                    buf[pos++] = c >> 0xC & 0x3F | 0x80;\n                }\n                buf[pos++] = c >> 0x6 & 0x3F | 0x80;\n            }\n            buf[pos++] = c & 0x3F | 0x80;\n        }\n    }\n    return pos;\n}\n","//adapted from https://github.com/mapbox/mapbox-gl-js/blob/5886421ea9a5ae26797c950ec698be473fe87d17/src/style-spec/feature_filter/index.js\n\n'use strict';\n\nmodule.exports = createFilter;\n\nconst types = ['Unknown', 'Point', 'LineString', 'Polygon'];\n\n/**\n * Given a filter expressed as nested arrays, return a new function\n * that evaluates whether a given feature (with a .properties or .tags property)\n * passes its test.\n *\n * @private\n * @param {Array} filter mapbox gl filter\n * @returns {Function} filter-evaluating function\n */\nfunction createFilter(filter) {\n    return new Function('f', `var p = (f && f.properties || {}); return ${compile(filter)}`);\n}\n\nfunction compile(filter) {\n    if (!filter) return 'true';\n    const op = filter[0];\n    if (filter.length <= 1) return op === 'any' ? 'false' : 'true';\n    const str =\n        op === '==' ? compileComparisonOp(filter[1], filter[2], '===', false) :\n        op === '!=' ? compileComparisonOp(filter[1], filter[2], '!==', false) :\n        op === '<' ||\n        op === '>' ||\n        op === '<=' ||\n        op === '>=' ? compileComparisonOp(filter[1], filter[2], op, true) :\n        op === '~=' ? compileRegexOp(filter[1], filter[2]) :\n        op === 'any' ? compileLogicalOp(filter.slice(1), '||') :\n        op === 'all' ? compileLogicalOp(filter.slice(1), '&&') :\n        op === 'none' ? compileNegation(compileLogicalOp(filter.slice(1), '||')) :\n        op === 'in' ? compileInOp(filter[1], filter.slice(2)) :\n        op === '!in' ? compileNegation(compileInOp(filter[1], filter.slice(2))) :\n        op === 'has' ? compileHasOp(filter[1]) :\n        op === '!has' ? compileNegation(compileHasOp(filter[1])) :\n        'true';\n    return `(${str})`;\n}\n\nfunction compilePropertyReference(property) {\n    return property === '$type' ? 'f.type' :\n        property === '$id' ? 'f.id' :\n        `p[${JSON.stringify(property)}]`;\n}\n\nfunction compileComparisonOp(property, value, op, checkType) {\n    const left = compilePropertyReference(property);\n    const right = property === '$type' ? types.indexOf(value) : JSON.stringify(value);\n    return (checkType ? `typeof ${left}=== typeof ${right}&&` : '') + left + op + right;\n}\n\nfunction compileRegexOp(property, value) {\n    const left = compilePropertyReference(property);\n    const right = value;\n    return `${'function(left, right) {' +\n    'if(!left) return false; return left.toString().match(right);' +\n    '}('}${left}, ${right})`;\n}\n\nfunction compileLogicalOp(expressions, op) {\n    return expressions.map(compile).join(op);\n}\n\nfunction compileInOp(property, values) {\n    if (property === '$type') values = values.map((value) => {\n        return types.indexOf(value);\n    });\n    const left = JSON.stringify(values.sort(compare));\n    const right = compilePropertyReference(property);\n\n    if (values.length <= 200) return `${left}.indexOf(${right}) !== -1`;\n\n    return `${'function(v, a, i, j) {' +\n        'while (i <= j) { var m = (i + j) >> 1;' +\n        '    if (a[m] === v) return true; if (a[m] > v) j = m - 1; else i = m + 1;' +\n        '}' +\n    'return false; }('}${right}, ${left},0,${values.length - 1})`;\n}\n\nfunction compileHasOp(property) {\n    return property === '$id' ? '\"id\" in f' : `${JSON.stringify(property)} in p`;\n}\n\nfunction compileNegation(expression) {\n    return `!(${expression})`;\n}\n\n// Comparison function to sort numbers and strings\nfunction compare(a, b) {\n    return a < b ? -1 : a > b ? 1 : 0;\n}\n","'use strict';\n\nconst vt = require('@mapbox/vector-tile');\nconst Protobuf = require('pbf');\nconst GeoJSONFeature = require('mapbox-gl/src/util/vectortile_to_geojson');\nconst featureFilter = require('./feature_filter');\n\nmodule.exports = {\n\n    querySourceFeatures(sourceID, params, map) {\n        const sourceCache = map.style.sourceCaches[sourceID];\n\n         //from: https://github.com/mapbox/mapbox-gl-js/blob/5886421ea9a5ae26797c950ec698be473fe87d17/src/source/query_features.js#L25\n        const tiles = sourceCache.getRenderableIds().map((id) => {\n            return sourceCache.getTileByID(id);\n        });\n\n        const result = [];\n\n        const dataTiles = {};\n        for (let i = 0; i < tiles.length; i++) {\n            const tile = tiles[i];\n            const dataID = tile.tileID.canonical.key;\n            if (!dataTiles[dataID]) {\n                dataTiles[dataID] = true;\n                this.queryTile(result, params, tile);\n            }\n        }\n\n        return result;\n\n    },\n\n    queryTile(result, params, tile) {\n        //from: https://github.com/mapbox/mapbox-gl-js/blob/5886421ea9a5ae26797c950ec698be473fe87d17/src/source/tile.js#L175\n        if (!tile.rawTileData) return;\n\n        if (!tile.vtLayers) {\n            tile.vtLayers = new vt.VectorTile(new Protobuf(tile.rawTileData)).layers;\n        }\n\n        const sourceLayer = params ? params.sourceLayer : '';\n        const layer = tile.vtLayers._geojsonTileLayer || tile.vtLayers[sourceLayer];\n\n        if (!layer) return;\n\n        const filter = featureFilter(params && params.filter);\n        const coord = { z: tile.tileID.overscaledZ, x: tile.tileID.canonical.x, y: tile.tileID.canonical.y };\n\n        for (let i = 0; i < layer.length; i++) {\n            const feature = layer.feature(i);\n            if (filter(feature)) {\n                const geojsonFeature = new GeoJSONFeature(feature, coord.z, coord.x, coord.y);\n                geojsonFeature.tile = coord;\n                result.push(geojsonFeature);\n            }\n        }\n    }\n\n};\n"]}