- (function (global, factory) {
- typeof exports === 'object' && typeof module !== 'undefined' ?
- module.exports = factory() :
- typeof define === 'function' && define.amd ? define(factory) :
- (global = typeof globalThis !== 'undefined' ? globalThis :
- global || self, global.mapboxgl1.XYZLayer = factory());
- }(window, (function () {
- 'use strict';
-
- /*
- * @namespace Util
- *
- * Various utility functions, used by Leaflet internally.
- */
- Object.freeze = function (obj) {
- return obj;
- };
-
- // @function create(proto: Object, properties?: Object): Object
- // Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)
- var create$3 = Object.create || function () {
- function F() {}
- return function (proto) {
- F.prototype = proto;
- return new F();
- };
- }();
-
- // @function setOptions(obj: Object, options: Object): Object
- // Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.
- function setOptions(obj, options) {
- if (!obj.hasOwnProperty('options')) {
- obj.options = obj.options ? create$3(obj.options) : {};
- }
- for (var i in options) {
- obj.options[i] = options[i] || obj.options[i];
- }
- return obj.options;
- }
-
- var templateRe = /\{ *([\w_-]+) *\}/g;
-
- // @function template(str: String, data: Object): String
- // Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`
- // and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string
- // `('Hello foo, bar')`. You can also specify functions instead of strings for
- // data values — they will be evaluated passing `data` as an argument.
- function template(str, data) {
- return str.replace(templateRe, function (str, key) {
- var value = data[key];
-
- if (value === undefined) {
- throw new Error('No value provided for variable ' + str);
- } else if (typeof value === 'function') {
- value = value(data);
- }
- return value;
- });
- }
-
- // @function isArray(obj): Boolean
- // Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)
- var isArray = Array.isArray || function (obj) {
- return Object.prototype.toString.call(obj) === '[object Array]';
- };
-
- //坐标转换
- var pi = 3.1415926535897932384626;
- var a = 6378245.0;
- var ee = 0.00669342162296594323;
- var x_pi = pi * 3000.0 / 180.0;
-
- /**百度转84*/
- function bd09_To_gps84(lng, lat) {
- if (isArray(lng)) {
- var _lng = lng[0];
- lat = lng[1];
- lng = _lng;
- }
- if (lng instanceof Object) {
- var _lng = lng.lng;
- lat = lng.lat;
- lng = _lng;
- }
- var gcj02 = bd09_To_gcj02(lng, lat);
- var map84 = gcj02_To_gps84(gcj02.lng, gcj02.lat);
- return map84;
- }
- /**84转百度*/
- function gps84_To_bd09(lng, lat) {
- if (isArray(lng)) {
- var _lng = lng[0];
- lat = lng[1];
- lng = _lng;
- }
- if (lng instanceof Object) {
- var _lng = lng.lng;
- lat = lng.lat;
- lng = _lng;
- }
- var gcj02 = gps84_To_gcj02(lng, lat);
- var bd09 = gcj02_To_bd09(gcj02.lng, gcj02.lat);
- return bd09;
- }
- /**84转火星*/
- function gps84_To_gcj02(lng, lat) {
- if (isArray(lng)) {
- var _lng = lng[0];
- lat = lng[1];
- lng = _lng;
- }
- if (lng instanceof Object) {
- var _lng = lng.lng;
- lat = lng.lat;
- lng = _lng;
- }
-
- var dLat = transformLat(lng - 105.0, lat - 35.0);
- var dLng = transformLng(lng - 105.0, lat - 35.0);
- var radLat = lat / 180.0 * pi;
- var magic = Math.sin(radLat);
- magic = 1 - ee * magic * magic;
- var sqrtMagic = Math.sqrt(magic);
- dLat = dLat * 180.0 / (a * (1 - ee) / (magic * sqrtMagic) * pi);
- dLng = dLng * 180.0 / (a / sqrtMagic * Math.cos(radLat) * pi);
- var mgLat = lat + dLat;
- var mgLng = lng + dLng;
- var newCoord = {
- lng: mgLng,
- lat: mgLat
- };
- return newCoord;
- }
- /**火星转84*/
- function gcj02_To_gps84(lng, lat) {
- if (isArray(lng)) {
- var _lng = lng[0];
- lat = lng[1];
- lng = _lng;
- }
- if (lng instanceof Object) {
- var _lng = lng.lng;
- lat = lng.lat;
- lng = _lng;
- }
-
- var coord = transform(lng, lat);
- var lontitude = lng * 2 - coord.lng;
- var latitude = lat * 2 - coord.lat;
- var newCoord = {
- lng: lontitude,
- lat: latitude
- };
- return newCoord;
- }
- /**火星转百度*/
- function gcj02_To_bd09(x, y) {
- var z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);
- var theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);
- var bd_lng = z * Math.cos(theta) + 0.0065;
- var bd_lat = z * Math.sin(theta) + 0.006;
- var newCoord = {
- lng: bd_lng,
- lat: bd_lat
- };
- return newCoord;
- }
- /**百度转火星*/
- function bd09_To_gcj02(bd_lng, bd_lat) {
- var x = bd_lng - 0.0065;
- var y = bd_lat - 0.006;
- var z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);
- var theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
- var gg_lng = z * Math.cos(theta);
- var gg_lat = z * Math.sin(theta);
- var newCoord = {
- lng: gg_lng,
- lat: gg_lat
- };
- return newCoord;
- }
-
- function transform(lng, lat) {
- var dLat = transformLat(lng - 105.0, lat - 35.0);
- var dLng = transformLng(lng - 105.0, lat - 35.0);
- var radLat = lat / 180.0 * pi;
- var magic = Math.sin(radLat);
- magic = 1 - ee * magic * magic;
- var sqrtMagic = Math.sqrt(magic);
- dLat = dLat * 180.0 / (a * (1 - ee) / (magic * sqrtMagic) * pi);
- dLng = dLng * 180.0 / (a / sqrtMagic * Math.cos(radLat) * pi);
- var mgLat = lat + dLat;
- var mgLng = lng + dLng;
- var newCoord = {
- lng: mgLng,
- lat: mgLat
- };
- return newCoord;
- }
-
- function transformLat(x, y) {
- var ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));
- ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
- ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;
- ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;
- return ret;
- }
-
- function transformLng(x, y) {
- var ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));
- ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
- ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
- ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0 * pi)) * 2.0 / 3.0;
- return ret;
- }
-
- //经纬度转xyz协议瓦片编号
- function lonLatToTileNumbers(lon_deg, lat_deg, zoom) {
- // 地球半径
- /* const r = 6378137;
-
- // 地球周长
- const C = 2 * Math.PI * 6378137;
-
- // 瓦片像素
- const titleSize = 256;
-
- // 获取某一层级下的分辨率(X,Y方向适)
- const getResolution = (n) => {
- const tileNums = Math.pow(2, n)
- const tileTotalPx = tileNums * titleSize
- return C / tileTotalPx
- }
-
- // 4326转3857
- const lngLatMercator = (lng, lat) => {
- //注意先转为为弧度制,弧度=角度*Math.PI/180,弧长=弧度*半径
- let x = lng * (Math.PI / 180) * r;
- let rad = lat * (Math.PI / 180)
- let sin = Math.sin(rad)
- let y = r / 2 * Math.log((1 + sin) / (1 - sin))
- return [x, y]
- }
-
- // 根据像素坐标及缩放层级计算瓦片行列号
- const getTileRowAndCol = (x, y, z) => {
- //因为3857与4326坐标原点位于经纬度为零的地方,而瓦片坐标原点位于左上角,所以需要将3857坐标原点转到左上角
- x += C / 2;
- y = C / 2 - y;
- let resolutionX = getResolution(z)//获取某一层级z下的分辨率
- let row = Math.floor(x / resolutionX / tileSize)
- let col = Math.floor(y / resolutionY / tileSize)
- return [row, col]
- }
-
- return getTileRowAndCol(...lngLatMercator(lon_deg,lat_deg),zoom);*/
-
-
-
- /* console.log(lon_deg,lat_deg,zoom);
- function lon2tile(lon,zoom) {
- return (Math.floor((lon+180)/360*Math.pow(2,zoom)));
- }
- function lat2tile(lat,zoom) {
- return (Math.floor((1-Math.log(Math.tan(lat*Math.PI/180) + 1/Math.cos(lat*Math.PI/180))/Math.PI)/2 *Math.pow(2,zoom)));
- }
-
- return [lon2tile(lon_deg,zoom),lat2tile(lat_deg,zoom)];*/
-
-
-
- var lat_rad = pi / 180 * lat_deg; //math.radians(lat_deg) 角度转弧度
- var n = Math.pow(2, zoom);
- var xtile = parseInt((lon_deg + 180.0) / 360.0 * n);
- var ytile = parseInt((1.0 - Math.asinh(Math.tan(lat_rad)) / pi) / 2.0 * n);
- return [xtile, ytile];
- }
-
- //xyz协议瓦片编号转经纬度
- function tileNumbersToLonLat(xtile, ytile, zoom) {
- /* function tile2long(x,z) {
- return (x/Math.pow(2,z)*360-180);
- }
-
- function tile2lat(y,z) {
- var n=Math.PI-2*Math.PI*y/Math.pow(2,z);
- return (180/Math.PI*Math.atan(0.5*(Math.exp(n)-Math.exp(-n))));
- }
-
- return [tile2long(xtile, zoom),tile2lat(ytile,zoom)];*/
-
-
- let n = Math.pow(2, zoom);
- let lon_deg = xtile / n * 360.0 - 180.0;
- let lat_rad = Math.atan(Math.sinh(pi * (1 - 2 * ytile / n)));
-
- let lat_deg = lat_rad * 180.0 / pi;
- return [lon_deg, lat_deg];
- }
- /*
- * Created by CntChen 2016.05.04
- * 从百度JavaScritp API v2.0 抽取代码,并作少量命名修改
- * http://lbsyun.baidu.com/index.php?title=jspopular
- * http://api.map.baidu.com/getscript?v=2.0&ak=E4805d16520de693a3fe707cdc962045&t=20160503160001
- */
-
- // ----- Baidu API start
-
- // util function
- function Extend(a, b) {
- for (var c in b) b.hasOwnProperty(c) && (a[c] = b[c]);
- return a;
- }
- function S(a, b) {
- for (var c in b) a[c] = b[c];
- }
-
- function Xa(a) {
- return "string" == typeof a;
- }
-
- var j = void 0,
- p = null;
-
- // Point
- function H(a, b) {
- isNaN(a) && (a = Ib(a), a = isNaN(a) ? 0 : a);
- Xa(a) && (a = parseFloat(a));
- isNaN(b) && (b = Ib(b), b = isNaN(b) ? 0 : b);
- Xa(b) && (b = parseFloat(b));
- this.lng = a;
- this.lat = b;
- }
- H.TL = function (a) {
- return a && 180 >= a.lng && -180 <= a.lng && 74 >= a.lat && -74 <= a.lat;
- };
- H.prototype.lb = function (a) {
- return a && this.lat == a.lat && this.lng == a.lng;
- };
-
- // Pixel
- function Q(a, b) {
- this.x = a || 0;
- this.y = b || 0;
- this.x = this.x;
- this.y = this.y;
- }
- Q.prototype.lb = function (a) {
- return a && a.x == this.x && a.y == this.y;
- };
-
- // MercatorProjection
- function fc() {}
- fc.prototype.nh = function () {
- aa("lngLatToPoint\u65b9\u6cd5\u672a\u5b9e\u73b0");
- };
- fc.prototype.wi = function () {
- aa("pointToLngLat\u65b9\u6cd5\u672a\u5b9e\u73b0");
- };
-
- function R() {}
- R.prototype = new fc();
- Extend(R, {
- $O: 6370996.81,
- lG: [1.289059486E7, 8362377.87, 5591021, 3481989.83, 1678043.12, 0],
- Au: [75, 60, 45, 30, 15, 0],
- fP: [[1.410526172116255E-8, 8.98305509648872E-6, -1.9939833816331, 200.9824383106796, -187.2403703815547, 91.6087516669843, -23.38765649603339, 2.57121317296198, -0.03801003308653, 1.73379812E7], [-7.435856389565537E-9, 8.983055097726239E-6, -0.78625201886289, 96.32687599759846, -1.85204757529826, -59.36935905485877, 47.40033549296737, -16.50741931063887, 2.28786674699375, 1.026014486E7], [-3.030883460898826E-8, 8.98305509983578E-6, 0.30071316287616, 59.74293618442277, 7.357984074871, -25.38371002664745, 13.45380521110908, -3.29883767235584, 0.32710905363475, 6856817.37], [-1.981981304930552E-8, 8.983055099779535E-6, 0.03278182852591, 40.31678527705744, 0.65659298677277, -4.44255534477492, 0.85341911805263, 0.12923347998204, -0.04625736007561, 4482777.06], [3.09191371068437E-9, 8.983055096812155E-6, 6.995724062E-5, 23.10934304144901, -2.3663490511E-4, -0.6321817810242, -0.00663494467273, 0.03430082397953, -0.00466043876332, 2555164.4], [2.890871144776878E-9, 8.983055095805407E-6, -3.068298E-8, 7.47137025468032, -3.53937994E-6, -0.02145144861037, -1.234426596E-5, 1.0322952773E-4, -3.23890364E-6, 826088.5]],
- iG: [[-0.0015702102444, 111320.7020616939, 1704480524535203, -10338987376042340, 26112667856603880, -35149669176653700, 26595700718403920, -10725012454188240, 1800819912950474, 82.5], [8.277824516172526E-4, 111320.7020463578, 6.477955746671607E8, -4.082003173641316E9, 1.077490566351142E10, -1.517187553151559E10, 1.205306533862167E10, -5.124939663577472E9, 9.133119359512032E8, 67.5], [0.00337398766765, 111320.7020202162, 4481351.045890365, -2.339375119931662E7, 7.968221547186455E7, -1.159649932797253E8, 9.723671115602145E7, -4.366194633752821E7, 8477230.501135234, 52.5], [0.00220636496208, 111320.7020209128, 51751.86112841131, 3796837.749470245, 992013.7397791013, -1221952.21711287, 1340652.697009075, -620943.6990984312, 144416.9293806241, 37.5], [-3.441963504368392E-4, 111320.7020576856, 278.2353980772752, 2485758.690035394, 6070.750963243378, 54821.18345352118, 9540.606633304236, -2710.55326746645, 1405.483844121726, 22.5], [-3.218135878613132E-4, 111320.7020701615, 0.00369383431289, 823725.6402795718, 0.46104986909093, 2351.343141331292, 1.58060784298199, 8.77738589078284, 0.37238884252424, 7.45]],
- Z1: function (a, b) {
- if (!a || !b) return 0;
- var c,
- d,
- a = this.Fb(a);
- if (!a) return 0;
- c = this.Tk(a.lng);
- d = this.Tk(a.lat);
- b = this.Fb(b);
- return !b ? 0 : this.Pe(c, this.Tk(b.lng), d, this.Tk(b.lat));
- },
- Vo: function (a, b) {
- if (!a || !b) return 0;
- a.lng = this.JD(a.lng, -180, 180);
- a.lat = this.ND(a.lat, -74, 74);
- b.lng = this.JD(b.lng, -180, 180);
- b.lat = this.ND(b.lat, -74, 74);
- return this.Pe(this.Tk(a.lng), this.Tk(b.lng), this.Tk(a.lat), this.Tk(b.lat));
- },
- Fb: function (a) {
- if (a === p || a === j) return new H(0, 0);
- var b, c;
- b = new H(Math.abs(a.lng), Math.abs(a.lat));
- for (var d = 0; d < this.lG.length; d++) if (b.lat >= this.lG[d]) {
- c = this.fP[d];
- break;
- }
- a = this.gK(a, c);
- return a = new H(a.lng.toFixed(6), a.lat.toFixed(6));
- },
- Eb: function (a) {
- if (a === p || a === j || 180 < a.lng || -180 > a.lng || 90 < a.lat || -90 > a.lat) return new H(0, 0);
- var b, c;
- a.lng = this.JD(a.lng, -180, 180);
- a.lat = this.ND(a.lat, -74, 74);
- b = new H(a.lng, a.lat);
- for (var d = 0; d < this.Au.length; d++) if (b.lat >= this.Au[d]) {
- c = this.iG[d];
- break;
- }
-
- // 对疑似bug的修改 start
- // by CntChen 2016.05.08
- // @2016-09-19 已经得到官方确认为bug:https://cntchen.github.io/2016/05/09/%E7%99%BE%E5%BA%A6JavaScirpt%20%20API%E4%B8%AD%E7%BB%8F%E7%BA%AC%E5%BA%A6%E5%9D%90%E6%A0%87%E8%BD%AC%E7%93%A6%E7%89%87%E5%9D%90%E6%A0%87bug/
- if (!c) for (d = 0; d < this.Au.length; d++) if (b.lat <= -this.Au[d]) {
- c = this.iG[d];
- break;
- }
- // 对疑似bug的修改 end
-
- // Baidu JavaScript 中原本代码, 2016.05.08依然如此
- // if (!c)
- // for (d = this.Au.length - 1; 0 <= d; d--)
- // if (b.lat <= -this.Au[d]) {
- // c = this.iG[d];
- // break
- // }
- // Baidu JavaScript 中原本代码 end
-
- a = this.gK(a, c);
- return a = new H(a.lng.toFixed(2), a.lat.toFixed(2));
- },
- gK: function (a, b) {
- if (a && b) {
- var c = b[0] + b[1] * Math.abs(a.lng),
- d = Math.abs(a.lat) / b[9],
- d = b[2] + b[3] * d + b[4] * d * d + b[5] * d * d * d + b[6] * d * d * d * d + b[7] * d * d * d * d * d + b[8] * d * d * d * d * d * d,
- c = c * (0 > a.lng ? -1 : 1),
- d = d * (0 > a.lat ? -1 : 1);
- return new H(c, d);
- }
- },
- Pe: function (a, b, c, d) {
- return this.$O * Math.acos(Math.sin(c) * Math.sin(d) + Math.cos(c) * Math.cos(d) * Math.cos(b - a));
- },
- Tk: function (a) {
- return Math.PI * a / 180;
- },
- Z3: function (a) {
- return 180 * a / Math.PI;
- },
- ND: function (a, b, c) {
- b != p && (a = Math.max(a, b));
- c != p && (a = Math.min(a, c));
- return a;
- },
- JD: function (a, b, c) {
- for (; a > c;) a -= c - b;
- for (; a < b;) a += c - b;
- return a;
- }
- });
- Extend(R.prototype, {
- Jm: function (a) {
- return R.Eb(a);
- },
- nh: function (a) {
- a = R.Eb(a);
- return new Q(a.lng, a.lat);
- },
- qh: function (a) {
- return R.Fb(a);
- },
- wi: function (a) {
- a = new H(a.x, a.y);
- return R.Fb(a);
- },
- fc: function (a, b, c, d, e) {
- if (a) return a = this.Jm(a, e), b = this.Lc(b), new Q(Math.round((a.lng - c.lng) / b + d.width / 2), Math.round((c.lat - a.lat) / b + d.height / 2));
- },
- zb: function (a, b, c, d, e) {
- if (a) return b = this.Lc(b), this.qh(new H(c.lng + b * (a.x - d.width / 2), c.lat - b * (a.y - d.height / 2)), e);
- },
- Lc: function (a) {
- return Math.pow(2, 18 - a);
- }
- });
-
- var Je = R.prototype;
- S(Je, {
- lngLatToPoint: Je.nh,
- pointToLngLat: Je.wi
- });
-
- // ----- Baidu API end
-
- let BMap = {
- Point: H,
- Pixel: Q,
- MercatorProjection: R
- };
-
- /*
- * Created by CntChen 2016.05.04
- * 坐标相关参考文章:
- * http://www.cnblogs.com/jz1108/archive/2011/07/02/2095376.html
- * http://www.cnblogs.com/janehlp/archive/2012/08/27/2658106.html
- * 适用地图:百度
- */
-
- class TransformClassBaidu {
- constructor(levelRange_max, LevelRange_min) {
- this.levelMax = levelRange_max;
- this.levelMin = LevelRange_min;
-
- this.projection = new BMap.MercatorProjection();
- }
-
- _getRetain(level) {
- return Math.pow(2, level - 18);
- }
-
- /*
- * 分辨率,表示水平方向上一个像素点代表的真实距离(m)
- * 百度地图18级时的平面坐标就是地图距离原点的距离(m)
- * 使用{lng:180, lat:0}时候的pointX是否等于地球赤道长一半来验证
- */
- getResolution(latitude, level) {
- return Math.pow(2, 18 - level) * Math.cos(latitude);
- }
-
- /*
- * 从经纬度到百度平面坐标
- */
- lnglatToPoint(longitude, latitude) {
- let lnglat = new BMap.Point(longitude, latitude);
- let point = this.projection.lngLatToPoint(lnglat);
-
- // 提取对象的字段并返回
- return {
- pointX: point.x,
- pointY: point.y
- };
- }
-
- /*
- * 从百度平面坐标到经纬度
- */
- pointToLnglat(pointX, pointY) {
- let point = new BMap.Pixel(pointX, pointY);
- let lnglat = this.projection.pointToLngLat(point);
-
- // 不直接返回lnglat对象,因为该对象在百SDK中还有其他属性和方法
- // 提取对象的字段后,与其他地图平台统一Lnglat的格式
- return {
- lng: lnglat.lng,
- lat: lnglat.lat
- };
- }
-
- _lngToTileX(longitude, level) {
- let point = this.lnglatToPoint(longitude, 0);
- let tileX = Math.floor(point.pointX * this._getRetain(level) / 256);
-
- return tileX;
- }
-
- _latToTileY(latitude, level) {
- let point = this.lnglatToPoint(0, latitude);
- let tileY = Math.floor(point.pointY * this._getRetain(level) / 256);
-
- return tileY;
- }
-
- /*
- * 从经纬度获取某一级别瓦片编号
- */
- lnglatToTile(longitude, latitude, level) {
- let tileX = this._lngToTileX(longitude, level);
- let tileY = this._latToTileY(latitude, level);
-
- return [tileX, tileY];
- }
-
- _lngToPixelX(longitude, level) {
- let tileX = this._lngToTileX(longitude, level);
- let point = this.lnglatToPoint(longitude, 0);
- let pixelX = Math.floor(point.pointX * this._getRetain(level) - tileX * 256);
-
- return pixelX;
- }
-
- _latToPixelY(latitude, level) {
- let tileY = this._latToTileY(latitude, level);
- let point = this.lnglatToPoint(0, latitude);
- let pixelY = Math.floor(point.pointY * this._getRetain(level) - tileY * 256);
-
- return pixelY;
- }
-
- /*
- * 从经纬度到瓦片的像素坐标
- */
- lnglatToPixel(longitude, latitude, level) {
- let pixelX = this._lngToPixelX(longitude, level);
- let pixelY = this._latToPixelY(latitude, level);
-
- return {
- pixelX,
- pixelY
- };
- }
-
- _pixelXToLng(pixelX, tileX, level) {
- let pointX = (tileX * 256 + pixelX) / this._getRetain(level);
- let lnglat = this.pointToLnglat(pointX, 0);
-
- return lnglat.lng;
- }
-
- _pixelYToLat(pixelY, tileY, level) {
- let pointY = (tileY * 256 + pixelY) / this._getRetain(level);
- let lnglat = this.pointToLnglat(0, pointY);
-
- return lnglat.lat;
- }
-
- /*
- * 从某一瓦片的某一像素点到经纬度
- */
- pixelToLnglat(pixelX, pixelY, tileX, tileY, level) {
- let pointX = (tileX * 256 + pixelX) / this._getRetain(level);
- let pointY = (tileY * 256 + pixelY) / this._getRetain(level);
- let lnglat = this.pointToLnglat(pointX, pointY);
-
- return [lnglat.lng, lnglat.lat];
- }
- }
-
- function _classCallCheck(instance, Constructor) {
- if (!(instance instanceof Constructor)) {
- throw new TypeError("Cannot call a class as a function");
- }
- }
-
- function _defineProperties(target, props) {
- for (var i = 0; i < props.length; i++) {
- var descriptor = props[i];
- descriptor.enumerable = descriptor.enumerable || false;
- descriptor.configurable = true;
- if ("value" in descriptor) descriptor.writable = true;
- Object.defineProperty(target, descriptor.key, descriptor);
- }
- }
-
- function _createClass(Constructor, protoProps, staticProps) {
- if (protoProps) _defineProperties(Constructor.prototype, protoProps);
- if (staticProps) _defineProperties(Constructor, staticProps);
- return Constructor;
- }
-
- function getDefaultExportFromCjs (x) {
- return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
- }
-
- var _typeof$1 = {exports: {}};
-
- (function (module) {
- function _typeof(obj) {
- "@babel/helpers - typeof";
-
- if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
- module.exports = _typeof = function _typeof(obj) {
- return typeof obj;
- };
-
- module.exports["default"] = module.exports, module.exports.__esModule = true;
- } else {
- module.exports = _typeof = function _typeof(obj) {
- return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
- };
-
- module.exports["default"] = module.exports, module.exports.__esModule = true;
- }
-
- return _typeof(obj);
- }
-
- module.exports = _typeof;
- module.exports["default"] = module.exports, module.exports.__esModule = true;
- }(_typeof$1));
-
- var _typeof = /*@__PURE__*/getDefaultExportFromCjs(_typeof$1.exports);
-
- function _assertThisInitialized(self) {
- if (self === void 0) {
- throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
- }
-
- return self;
- }
-
- function _possibleConstructorReturn(self, call) {
- if (call && (_typeof(call) === "object" || typeof call === "function")) {
- return call;
- }
-
- return _assertThisInitialized(self);
- }
-
- function _getPrototypeOf(o) {
- _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
- return o.__proto__ || Object.getPrototypeOf(o);
- };
- return _getPrototypeOf(o);
- }
-
- function _setPrototypeOf(o, p) {
- _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
- o.__proto__ = p;
- return o;
- };
-
- return _setPrototypeOf(o, p);
- }
-
- function _inherits(subClass, superClass) {
- if (typeof superClass !== "function" && superClass !== null) {
- throw new TypeError("Super expression must either be null or a function");
- }
-
- subClass.prototype = Object.create(superClass && superClass.prototype, {
- constructor: {
- value: subClass,
- writable: true,
- configurable: true
- }
- });
- if (superClass) _setPrototypeOf(subClass, superClass);
- }
-
- function _arrayWithHoles(arr) {
- if (Array.isArray(arr)) return arr;
- }
-
- function _iterableToArrayLimit(arr, i) {
- var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"];
-
- if (_i == null) return;
- var _arr = [];
- var _n = true;
- var _d = false;
-
- var _s, _e;
-
- try {
- for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) {
- _arr.push(_s.value);
-
- if (i && _arr.length === i) break;
- }
- } catch (err) {
- _d = true;
- _e = err;
- } finally {
- try {
- if (!_n && _i["return"] != null) _i["return"]();
- } finally {
- if (_d) throw _e;
- }
- }
-
- return _arr;
- }
-
- function _arrayLikeToArray(arr, len) {
- if (len == null || len > arr.length) len = arr.length;
-
- for (var i = 0, arr2 = new Array(len); i < len; i++) {
- arr2[i] = arr[i];
- }
-
- return arr2;
- }
-
- function _unsupportedIterableToArray(o, minLen) {
- if (!o) return;
- if (typeof o === "string") return _arrayLikeToArray(o, minLen);
- var n = Object.prototype.toString.call(o).slice(8, -1);
- if (n === "Object" && o.constructor) n = o.constructor.name;
- if (n === "Map" || n === "Set") return Array.from(o);
- if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
- }
-
- function _nonIterableRest() {
- throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
- }
-
- function _slicedToArray(arr, i) {
- return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
- }
-
- /**
- * Common utilities
- * @module glMatrix
- */
- // Configuration Constants
- var EPSILON = 0.000001;
- var ARRAY_TYPE = typeof Float32Array !== 'undefined' ? Float32Array : Array;
- if (!Math.hypot) Math.hypot = function () {
- var y = 0,
- i = arguments.length;
-
- while (i--) {
- y += arguments[i] * arguments[i];
- }
-
- return Math.sqrt(y);
- };
-
- /**
- * 4 Dimensional Vector
- * @module vec4
- */
-
- /**
- * Creates a new, empty vec4
- *
- * @returns {vec4} a new 4D vector
- */
-
- function create$2() {
- var out = new ARRAY_TYPE(4);
-
- if (ARRAY_TYPE != Float32Array) {
- out[0] = 0;
- out[1] = 0;
- out[2] = 0;
- out[3] = 0;
- }
-
- return out;
- }
- /**
- * Scales a vec4 by a scalar number
- *
- * @param {vec4} out the receiving vector
- * @param {ReadonlyVec4} a the vector to scale
- * @param {Number} b amount to scale the vector by
- * @returns {vec4} out
- */
-
- function scale$1(out, a, b) {
- out[0] = a[0] * b;
- out[1] = a[1] * b;
- out[2] = a[2] * b;
- out[3] = a[3] * b;
- return out;
- }
- /**
- * Transforms the vec4 with a mat4.
- *
- * @param {vec4} out the receiving vector
- * @param {ReadonlyVec4} a the vector to transform
- * @param {ReadonlyMat4} m matrix to transform with
- * @returns {vec4} out
- */
-
- function transformMat4(out, a, m) {
- var x = a[0],
- y = a[1],
- z = a[2],
- w = a[3];
- out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;
- out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;
- out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;
- out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;
- return out;
- }
- /**
- * Perform some operation over an array of vec4s.
- *
- * @param {Array} a the array of vectors to iterate over
- * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed
- * @param {Number} offset Number of elements to skip at the beginning of the array
- * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array
- * @param {Function} fn Function to call for each vector in the array
- * @param {Object} [arg] additional argument to pass to fn
- * @returns {Array} a
- * @function
- */
-
- (function () {
- var vec = create$2();
- return function (a, stride, offset, count, fn, arg) {
- var i, l;
-
- if (!stride) {
- stride = 4;
- }
-
- if (!offset) {
- offset = 0;
- }
-
- if (count) {
- l = Math.min(count * stride + offset, a.length);
- } else {
- l = a.length;
- }
-
- for (i = offset; i < l; i += stride) {
- vec[0] = a[i];
- vec[1] = a[i + 1];
- vec[2] = a[i + 2];
- vec[3] = a[i + 3];
- fn(vec, vec, arg);
- a[i] = vec[0];
- a[i + 1] = vec[1];
- a[i + 2] = vec[2];
- a[i + 3] = vec[3];
- }
-
- return a;
- };
- })();
-
- function createMat4() {
- return [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1];
- }
- function transformVector(matrix, vector) {
- var result = transformMat4([], vector, matrix);
- scale$1(result, result, 1 / result[3]);
- return result;
- }
-
- /**
- * Inverts a mat4
- *
- * @param {mat4} out the receiving matrix
- * @param {ReadonlyMat4} a the source matrix
- * @returns {mat4} out
- */
-
- function invert(out, a) {
- var a00 = a[0],
- a01 = a[1],
- a02 = a[2],
- a03 = a[3];
- var a10 = a[4],
- a11 = a[5],
- a12 = a[6],
- a13 = a[7];
- var a20 = a[8],
- a21 = a[9],
- a22 = a[10],
- a23 = a[11];
- var a30 = a[12],
- a31 = a[13],
- a32 = a[14],
- a33 = a[15];
- var b00 = a00 * a11 - a01 * a10;
- var b01 = a00 * a12 - a02 * a10;
- var b02 = a00 * a13 - a03 * a10;
- var b03 = a01 * a12 - a02 * a11;
- var b04 = a01 * a13 - a03 * a11;
- var b05 = a02 * a13 - a03 * a12;
- var b06 = a20 * a31 - a21 * a30;
- var b07 = a20 * a32 - a22 * a30;
- var b08 = a20 * a33 - a23 * a30;
- var b09 = a21 * a32 - a22 * a31;
- var b10 = a21 * a33 - a23 * a31;
- var b11 = a22 * a33 - a23 * a32; // Calculate the determinant
-
- var det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
-
- if (!det) {
- return null;
- }
-
- det = 1.0 / det;
- out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
- out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
- out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
- out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;
- out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
- out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
- out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
- out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;
- out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
- out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
- out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
- out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;
- out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;
- out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;
- out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;
- out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;
- return out;
- }
- /**
- * Multiplies two mat4s
- *
- * @param {mat4} out the receiving matrix
- * @param {ReadonlyMat4} a the first operand
- * @param {ReadonlyMat4} b the second operand
- * @returns {mat4} out
- */
-
- function multiply(out, a, b) {
- var a00 = a[0],
- a01 = a[1],
- a02 = a[2],
- a03 = a[3];
- var a10 = a[4],
- a11 = a[5],
- a12 = a[6],
- a13 = a[7];
- var a20 = a[8],
- a21 = a[9],
- a22 = a[10],
- a23 = a[11];
- var a30 = a[12],
- a31 = a[13],
- a32 = a[14],
- a33 = a[15]; // Cache only the current line of the second matrix
-
- var b0 = b[0],
- b1 = b[1],
- b2 = b[2],
- b3 = b[3];
- out[0] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
- out[1] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
- out[2] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
- out[3] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
- b0 = b[4];
- b1 = b[5];
- b2 = b[6];
- b3 = b[7];
- out[4] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
- out[5] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
- out[6] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
- out[7] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
- b0 = b[8];
- b1 = b[9];
- b2 = b[10];
- b3 = b[11];
- out[8] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
- out[9] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
- out[10] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
- out[11] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
- b0 = b[12];
- b1 = b[13];
- b2 = b[14];
- b3 = b[15];
- out[12] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
- out[13] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
- out[14] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
- out[15] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
- return out;
- }
- /**
- * Translate a mat4 by the given vector
- *
- * @param {mat4} out the receiving matrix
- * @param {ReadonlyMat4} a the matrix to translate
- * @param {ReadonlyVec3} v vector to translate by
- * @returns {mat4} out
- */
-
- function translate(out, a, v) {
- var x = v[0],
- y = v[1],
- z = v[2];
- var a00, a01, a02, a03;
- var a10, a11, a12, a13;
- var a20, a21, a22, a23;
-
- if (a === out) {
- out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];
- out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];
- out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];
- out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];
- } else {
- a00 = a[0];
- a01 = a[1];
- a02 = a[2];
- a03 = a[3];
- a10 = a[4];
- a11 = a[5];
- a12 = a[6];
- a13 = a[7];
- a20 = a[8];
- a21 = a[9];
- a22 = a[10];
- a23 = a[11];
- out[0] = a00;
- out[1] = a01;
- out[2] = a02;
- out[3] = a03;
- out[4] = a10;
- out[5] = a11;
- out[6] = a12;
- out[7] = a13;
- out[8] = a20;
- out[9] = a21;
- out[10] = a22;
- out[11] = a23;
- out[12] = a00 * x + a10 * y + a20 * z + a[12];
- out[13] = a01 * x + a11 * y + a21 * z + a[13];
- out[14] = a02 * x + a12 * y + a22 * z + a[14];
- out[15] = a03 * x + a13 * y + a23 * z + a[15];
- }
-
- return out;
- }
- /**
- * Scales the mat4 by the dimensions in the given vec3 not using vectorization
- *
- * @param {mat4} out the receiving matrix
- * @param {ReadonlyMat4} a the matrix to scale
- * @param {ReadonlyVec3} v the vec3 to scale the matrix by
- * @returns {mat4} out
- **/
-
- function scale(out, a, v) {
- var x = v[0],
- y = v[1],
- z = v[2];
- out[0] = a[0] * x;
- out[1] = a[1] * x;
- out[2] = a[2] * x;
- out[3] = a[3] * x;
- out[4] = a[4] * y;
- out[5] = a[5] * y;
- out[6] = a[6] * y;
- out[7] = a[7] * y;
- out[8] = a[8] * z;
- out[9] = a[9] * z;
- out[10] = a[10] * z;
- out[11] = a[11] * z;
- out[12] = a[12];
- out[13] = a[13];
- out[14] = a[14];
- out[15] = a[15];
- return out;
- }
- /**
- * Rotates a matrix by the given angle around the X axis
- *
- * @param {mat4} out the receiving matrix
- * @param {ReadonlyMat4} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat4} out
- */
-
- function rotateX(out, a, rad) {
- var s = Math.sin(rad);
- var c = Math.cos(rad);
- var a10 = a[4];
- var a11 = a[5];
- var a12 = a[6];
- var a13 = a[7];
- var a20 = a[8];
- var a21 = a[9];
- var a22 = a[10];
- var a23 = a[11];
-
- if (a !== out) {
- // If the source and destination differ, copy the unchanged rows
- out[0] = a[0];
- out[1] = a[1];
- out[2] = a[2];
- out[3] = a[3];
- out[12] = a[12];
- out[13] = a[13];
- out[14] = a[14];
- out[15] = a[15];
- } // Perform axis-specific matrix multiplication
-
-
- out[4] = a10 * c + a20 * s;
- out[5] = a11 * c + a21 * s;
- out[6] = a12 * c + a22 * s;
- out[7] = a13 * c + a23 * s;
- out[8] = a20 * c - a10 * s;
- out[9] = a21 * c - a11 * s;
- out[10] = a22 * c - a12 * s;
- out[11] = a23 * c - a13 * s;
- return out;
- }
- /**
- * Rotates a matrix by the given angle around the Z axis
- *
- * @param {mat4} out the receiving matrix
- * @param {ReadonlyMat4} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat4} out
- */
-
- function rotateZ(out, a, rad) {
- var s = Math.sin(rad);
- var c = Math.cos(rad);
- var a00 = a[0];
- var a01 = a[1];
- var a02 = a[2];
- var a03 = a[3];
- var a10 = a[4];
- var a11 = a[5];
- var a12 = a[6];
- var a13 = a[7];
-
- if (a !== out) {
- // If the source and destination differ, copy the unchanged last row
- out[8] = a[8];
- out[9] = a[9];
- out[10] = a[10];
- out[11] = a[11];
- out[12] = a[12];
- out[13] = a[13];
- out[14] = a[14];
- out[15] = a[15];
- } // Perform axis-specific matrix multiplication
-
-
- out[0] = a00 * c + a10 * s;
- out[1] = a01 * c + a11 * s;
- out[2] = a02 * c + a12 * s;
- out[3] = a03 * c + a13 * s;
- out[4] = a10 * c - a00 * s;
- out[5] = a11 * c - a01 * s;
- out[6] = a12 * c - a02 * s;
- out[7] = a13 * c - a03 * s;
- return out;
- }
- /**
- * Generates a perspective projection matrix with the given bounds.
- * Passing null/undefined/no value for far will generate infinite projection matrix.
- *
- * @param {mat4} out mat4 frustum matrix will be written into
- * @param {number} fovy Vertical field of view in radians
- * @param {number} aspect Aspect ratio. typically viewport width/height
- * @param {number} near Near bound of the frustum
- * @param {number} far Far bound of the frustum, can be null or Infinity
- * @returns {mat4} out
- */
-
- function perspective(out, fovy, aspect, near, far) {
- var f = 1.0 / Math.tan(fovy / 2),
- nf;
- out[0] = f / aspect;
- out[1] = 0;
- out[2] = 0;
- out[3] = 0;
- out[4] = 0;
- out[5] = f;
- out[6] = 0;
- out[7] = 0;
- out[8] = 0;
- out[9] = 0;
- out[11] = -1;
- out[12] = 0;
- out[13] = 0;
- out[15] = 0;
-
- if (far != null && far !== Infinity) {
- nf = 1 / (near - far);
- out[10] = (far + near) * nf;
- out[14] = 2 * far * near * nf;
- } else {
- out[10] = -1;
- out[14] = -2 * near;
- }
-
- return out;
- }
- /**
- * Returns whether or not the matrices have approximately the same elements in the same position.
- *
- * @param {ReadonlyMat4} a The first matrix.
- * @param {ReadonlyMat4} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-
- function equals(a, b) {
- var a0 = a[0],
- a1 = a[1],
- a2 = a[2],
- a3 = a[3];
- var a4 = a[4],
- a5 = a[5],
- a6 = a[6],
- a7 = a[7];
- var a8 = a[8],
- a9 = a[9],
- a10 = a[10],
- a11 = a[11];
- var a12 = a[12],
- a13 = a[13],
- a14 = a[14],
- a15 = a[15];
- var b0 = b[0],
- b1 = b[1],
- b2 = b[2],
- b3 = b[3];
- var b4 = b[4],
- b5 = b[5],
- b6 = b[6],
- b7 = b[7];
- var b8 = b[8],
- b9 = b[9],
- b10 = b[10],
- b11 = b[11];
- var b12 = b[12],
- b13 = b[13],
- b14 = b[14],
- b15 = b[15];
- return Math.abs(a0 - b0) <= EPSILON * Math.max(1.0, Math.abs(a0), Math.abs(b0)) && Math.abs(a1 - b1) <= EPSILON * Math.max(1.0, Math.abs(a1), Math.abs(b1)) && Math.abs(a2 - b2) <= EPSILON * Math.max(1.0, Math.abs(a2), Math.abs(b2)) && Math.abs(a3 - b3) <= EPSILON * Math.max(1.0, Math.abs(a3), Math.abs(b3)) && Math.abs(a4 - b4) <= EPSILON * Math.max(1.0, Math.abs(a4), Math.abs(b4)) && Math.abs(a5 - b5) <= EPSILON * Math.max(1.0, Math.abs(a5), Math.abs(b5)) && Math.abs(a6 - b6) <= EPSILON * Math.max(1.0, Math.abs(a6), Math.abs(b6)) && Math.abs(a7 - b7) <= EPSILON * Math.max(1.0, Math.abs(a7), Math.abs(b7)) && Math.abs(a8 - b8) <= EPSILON * Math.max(1.0, Math.abs(a8), Math.abs(b8)) && Math.abs(a9 - b9) <= EPSILON * Math.max(1.0, Math.abs(a9), Math.abs(b9)) && Math.abs(a10 - b10) <= EPSILON * Math.max(1.0, Math.abs(a10), Math.abs(b10)) && Math.abs(a11 - b11) <= EPSILON * Math.max(1.0, Math.abs(a11), Math.abs(b11)) && Math.abs(a12 - b12) <= EPSILON * Math.max(1.0, Math.abs(a12), Math.abs(b12)) && Math.abs(a13 - b13) <= EPSILON * Math.max(1.0, Math.abs(a13), Math.abs(b13)) && Math.abs(a14 - b14) <= EPSILON * Math.max(1.0, Math.abs(a14), Math.abs(b14)) && Math.abs(a15 - b15) <= EPSILON * Math.max(1.0, Math.abs(a15), Math.abs(b15));
- }
-
- /**
- * 2 Dimensional Vector
- * @module vec2
- */
-
- /**
- * Creates a new, empty vec2
- *
- * @returns {vec2} a new 2D vector
- */
-
- function create$1() {
- var out = new ARRAY_TYPE(2);
-
- if (ARRAY_TYPE != Float32Array) {
- out[0] = 0;
- out[1] = 0;
- }
-
- return out;
- }
- /**
- * Adds two vec2's
- *
- * @param {vec2} out the receiving vector
- * @param {ReadonlyVec2} a the first operand
- * @param {ReadonlyVec2} b the second operand
- * @returns {vec2} out
- */
-
- function add(out, a, b) {
- out[0] = a[0] + b[0];
- out[1] = a[1] + b[1];
- return out;
- }
- /**
- * Negates the components of a vec2
- *
- * @param {vec2} out the receiving vector
- * @param {ReadonlyVec2} a vector to negate
- * @returns {vec2} out
- */
-
- function negate$1(out, a) {
- out[0] = -a[0];
- out[1] = -a[1];
- return out;
- }
- /**
- * Performs a linear interpolation between two vec2's
- *
- * @param {vec2} out the receiving vector
- * @param {ReadonlyVec2} a the first operand
- * @param {ReadonlyVec2} b the second operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {vec2} out
- */
-
- function lerp(out, a, b, t) {
- var ax = a[0],
- ay = a[1];
- out[0] = ax + t * (b[0] - ax);
- out[1] = ay + t * (b[1] - ay);
- return out;
- }
- /**
- * Perform some operation over an array of vec2s.
- *
- * @param {Array} a the array of vectors to iterate over
- * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed
- * @param {Number} offset Number of elements to skip at the beginning of the array
- * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array
- * @param {Function} fn Function to call for each vector in the array
- * @param {Object} [arg] additional argument to pass to fn
- * @returns {Array} a
- * @function
- */
-
- (function () {
- var vec = create$1();
- return function (a, stride, offset, count, fn, arg) {
- var i, l;
-
- if (!stride) {
- stride = 2;
- }
-
- if (!offset) {
- offset = 0;
- }
-
- if (count) {
- l = Math.min(count * stride + offset, a.length);
- } else {
- l = a.length;
- }
-
- for (i = offset; i < l; i += stride) {
- vec[0] = a[i];
- vec[1] = a[i + 1];
- fn(vec, vec, arg);
- a[i] = vec[0];
- a[i + 1] = vec[1];
- }
-
- return a;
- };
- })();
-
- /**
- * 3 Dimensional Vector
- * @module vec3
- */
-
- /**
- * Creates a new, empty vec3
- *
- * @returns {vec3} a new 3D vector
- */
-
- function create() {
- var out = new ARRAY_TYPE(3);
-
- if (ARRAY_TYPE != Float32Array) {
- out[0] = 0;
- out[1] = 0;
- out[2] = 0;
- }
-
- return out;
- }
- /**
- * Negates the components of a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {ReadonlyVec3} a vector to negate
- * @returns {vec3} out
- */
-
- function negate(out, a) {
- out[0] = -a[0];
- out[1] = -a[1];
- out[2] = -a[2];
- return out;
- }
- /**
- * Perform some operation over an array of vec3s.
- *
- * @param {Array} a the array of vectors to iterate over
- * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed
- * @param {Number} offset Number of elements to skip at the beginning of the array
- * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array
- * @param {Function} fn Function to call for each vector in the array
- * @param {Object} [arg] additional argument to pass to fn
- * @returns {Array} a
- * @function
- */
-
- (function () {
- var vec = create();
- return function (a, stride, offset, count, fn, arg) {
- var i, l;
-
- if (!stride) {
- stride = 3;
- }
-
- if (!offset) {
- offset = 0;
- }
-
- if (count) {
- l = Math.min(count * stride + offset, a.length);
- } else {
- l = a.length;
- }
-
- for (i = offset; i < l; i += stride) {
- vec[0] = a[i];
- vec[1] = a[i + 1];
- vec[2] = a[i + 2];
- fn(vec, vec, arg);
- a[i] = vec[0];
- a[i + 1] = vec[1];
- a[i + 2] = vec[2];
- }
-
- return a;
- };
- })();
-
- function assert(condition, message) {
- if (!condition) {
- throw new Error(message || 'viewport-mercator-project: assertion failed.');
- }
- }
-
- var PI$1 = Math.PI;
- var PI_4 = PI$1 / 4;
- var DEGREES_TO_RADIANS$1 = PI$1 / 180;
- var RADIANS_TO_DEGREES = 180 / PI$1;
- var TILE_SIZE$1 = 512;
- var EARTH_CIRCUMFERENCE$1 = 40.03e6;
- var DEFAULT_ALTITUDE = 1.5;
- function zoomToScale$1(zoom) {
- return Math.pow(2, zoom);
- }
- function lngLatToWorld(_ref, scale) {
- var _ref2 = _slicedToArray(_ref, 2),
- lng = _ref2[0],
- lat = _ref2[1];
-
- assert(Number.isFinite(lng) && Number.isFinite(scale));
- assert(Number.isFinite(lat) && lat >= -90 && lat <= 90, 'invalid latitude');
- scale *= TILE_SIZE$1;
- var lambda2 = lng * DEGREES_TO_RADIANS$1;
- var phi2 = lat * DEGREES_TO_RADIANS$1;
- var x = scale * (lambda2 + PI$1) / (2 * PI$1);
- var y = scale * (PI$1 - Math.log(Math.tan(PI_4 + phi2 * 0.5))) / (2 * PI$1);
- return [x, y];
- }
- function worldToLngLat(_ref3, scale) {
- var _ref4 = _slicedToArray(_ref3, 2),
- x = _ref4[0],
- y = _ref4[1];
-
- scale *= TILE_SIZE$1;
- var lambda2 = x / scale * (2 * PI$1) - PI$1;
- var phi2 = 2 * (Math.atan(Math.exp(PI$1 - y / scale * (2 * PI$1))) - PI_4);
- return [lambda2 * RADIANS_TO_DEGREES, phi2 * RADIANS_TO_DEGREES];
- }
- function getDistanceScales$1(_ref6) {
- var latitude = _ref6.latitude,
- longitude = _ref6.longitude,
- zoom = _ref6.zoom,
- scale = _ref6.scale,
- _ref6$highPrecision = _ref6.highPrecision,
- highPrecision = _ref6$highPrecision === void 0 ? false : _ref6$highPrecision;
- scale = scale !== undefined ? scale : zoomToScale$1(zoom);
- assert(Number.isFinite(latitude) && Number.isFinite(longitude) && Number.isFinite(scale));
- var result = {};
- var worldSize = TILE_SIZE$1 * scale;
- var latCosine = Math.cos(latitude * DEGREES_TO_RADIANS$1);
- var pixelsPerDegreeX = worldSize / 360;
- var pixelsPerDegreeY = pixelsPerDegreeX / latCosine;
- var altPixelsPerMeter = worldSize / EARTH_CIRCUMFERENCE$1 / latCosine;
- result.pixelsPerMeter = [altPixelsPerMeter, -altPixelsPerMeter, altPixelsPerMeter];
- result.metersPerPixel = [1 / altPixelsPerMeter, -1 / altPixelsPerMeter, 1 / altPixelsPerMeter];
- result.pixelsPerDegree = [pixelsPerDegreeX, -pixelsPerDegreeY, altPixelsPerMeter];
- result.degreesPerPixel = [1 / pixelsPerDegreeX, -1 / pixelsPerDegreeY, 1 / altPixelsPerMeter];
-
- if (highPrecision) {
- var latCosine2 = DEGREES_TO_RADIANS$1 * Math.tan(latitude * DEGREES_TO_RADIANS$1) / latCosine;
- var pixelsPerDegreeY2 = pixelsPerDegreeX * latCosine2 / 2;
- var altPixelsPerDegree2 = worldSize / EARTH_CIRCUMFERENCE$1 * latCosine2;
- var altPixelsPerMeter2 = altPixelsPerDegree2 / pixelsPerDegreeY * altPixelsPerMeter;
- result.pixelsPerDegree2 = [0, -pixelsPerDegreeY2, altPixelsPerDegree2];
- result.pixelsPerMeter2 = [altPixelsPerMeter2, 0, altPixelsPerMeter2];
- }
-
- return result;
- }
- function getViewMatrix(_ref7) {
- var height = _ref7.height,
- pitch = _ref7.pitch,
- bearing = _ref7.bearing,
- altitude = _ref7.altitude,
- _ref7$center = _ref7.center,
- center = _ref7$center === void 0 ? null : _ref7$center,
- _ref7$flipY = _ref7.flipY,
- flipY = _ref7$flipY === void 0 ? false : _ref7$flipY;
- var vm = createMat4();
- translate(vm, vm, [0, 0, -altitude]);
- scale(vm, vm, [1, 1, 1 / height]);
- rotateX(vm, vm, -pitch * DEGREES_TO_RADIANS$1);
- rotateZ(vm, vm, bearing * DEGREES_TO_RADIANS$1);
-
- if (flipY) {
- scale(vm, vm, [1, -1, 1]);
- }
-
- if (center) {
- translate(vm, vm, negate([], center));
- }
-
- return vm;
- }
- function getProjectionParameters(_ref8) {
- var width = _ref8.width,
- height = _ref8.height,
- _ref8$altitude = _ref8.altitude,
- altitude = _ref8$altitude === void 0 ? DEFAULT_ALTITUDE : _ref8$altitude,
- _ref8$pitch = _ref8.pitch,
- pitch = _ref8$pitch === void 0 ? 0 : _ref8$pitch,
- _ref8$nearZMultiplier = _ref8.nearZMultiplier,
- nearZMultiplier = _ref8$nearZMultiplier === void 0 ? 1 : _ref8$nearZMultiplier,
- _ref8$farZMultiplier = _ref8.farZMultiplier,
- farZMultiplier = _ref8$farZMultiplier === void 0 ? 1 : _ref8$farZMultiplier;
- var pitchRadians = pitch * DEGREES_TO_RADIANS$1;
- var halfFov = Math.atan(0.5 / altitude);
- var topHalfSurfaceDistance = Math.sin(halfFov) * altitude / Math.sin(Math.PI / 2 - pitchRadians - halfFov);
- var farZ = Math.cos(Math.PI / 2 - pitchRadians) * topHalfSurfaceDistance + altitude;
- return {
- fov: 2 * Math.atan(height / 2 / altitude),
- aspect: width / height,
- focalDistance: altitude,
- near: nearZMultiplier,
- far: farZ * farZMultiplier
- };
- }
- function getProjectionMatrix(_ref9) {
- var width = _ref9.width,
- height = _ref9.height,
- pitch = _ref9.pitch,
- altitude = _ref9.altitude,
- nearZMultiplier = _ref9.nearZMultiplier,
- farZMultiplier = _ref9.farZMultiplier;
-
- var _getProjectionParamet = getProjectionParameters({
- width: width,
- height: height,
- altitude: altitude,
- pitch: pitch,
- nearZMultiplier: nearZMultiplier,
- farZMultiplier: farZMultiplier
- }),
- fov = _getProjectionParamet.fov,
- aspect = _getProjectionParamet.aspect,
- near = _getProjectionParamet.near,
- far = _getProjectionParamet.far;
-
- var projectionMatrix = perspective([], fov, aspect, near, far);
- return projectionMatrix;
- }
- function worldToPixels(xyz, pixelProjectionMatrix) {
- var _xyz2 = _slicedToArray(xyz, 3),
- x = _xyz2[0],
- y = _xyz2[1],
- _xyz2$ = _xyz2[2],
- z = _xyz2$ === void 0 ? 0 : _xyz2$;
-
- assert(Number.isFinite(x) && Number.isFinite(y) && Number.isFinite(z));
- return transformVector(pixelProjectionMatrix, [x, y, z, 1]);
- }
- function pixelsToWorld(xyz, pixelUnprojectionMatrix) {
- var targetZ = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
-
- var _xyz3 = _slicedToArray(xyz, 3),
- x = _xyz3[0],
- y = _xyz3[1],
- z = _xyz3[2];
-
- assert(Number.isFinite(x) && Number.isFinite(y), 'invalid pixel coordinate');
-
- if (Number.isFinite(z)) {
- var coord = transformVector(pixelUnprojectionMatrix, [x, y, z, 1]);
- return coord;
- }
-
- var coord0 = transformVector(pixelUnprojectionMatrix, [x, y, 0, 1]);
- var coord1 = transformVector(pixelUnprojectionMatrix, [x, y, 1, 1]);
- var z0 = coord0[2];
- var z1 = coord1[2];
- var t = z0 === z1 ? 0 : ((targetZ || 0) - z0) / (z1 - z0);
- return lerp([], coord0, coord1, t);
- }
-
- var IDENTITY = createMat4();
-
- var Viewport = function () {
- function Viewport() {
- var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
- width = _ref.width,
- height = _ref.height,
- _ref$viewMatrix = _ref.viewMatrix,
- viewMatrix = _ref$viewMatrix === void 0 ? IDENTITY : _ref$viewMatrix,
- _ref$projectionMatrix = _ref.projectionMatrix,
- projectionMatrix = _ref$projectionMatrix === void 0 ? IDENTITY : _ref$projectionMatrix;
-
- _classCallCheck(this, Viewport);
-
- this.width = width || 1;
- this.height = height || 1;
- this.scale = 1;
- this.pixelsPerMeter = 1;
- this.viewMatrix = viewMatrix;
- this.projectionMatrix = projectionMatrix;
- var vpm = createMat4();
- multiply(vpm, vpm, this.projectionMatrix);
- multiply(vpm, vpm, this.viewMatrix);
- this.viewProjectionMatrix = vpm;
- var m = createMat4();
- scale(m, m, [this.width / 2, -this.height / 2, 1]);
- translate(m, m, [1, -1, 0]);
- multiply(m, m, this.viewProjectionMatrix);
- var mInverse = invert(createMat4(), m);
-
- if (!mInverse) {
- throw new Error('Pixel project matrix not invertible');
- }
-
- this.pixelProjectionMatrix = m;
- this.pixelUnprojectionMatrix = mInverse;
- this.equals = this.equals.bind(this);
- this.project = this.project.bind(this);
- this.unproject = this.unproject.bind(this);
- this.projectPosition = this.projectPosition.bind(this);
- this.unprojectPosition = this.unprojectPosition.bind(this);
- this.projectFlat = this.projectFlat.bind(this);
- this.unprojectFlat = this.unprojectFlat.bind(this);
- }
-
- _createClass(Viewport, [{
- key: "equals",
- value: function equals$1(viewport) {
- if (!(viewport instanceof Viewport)) {
- return false;
- }
-
- return viewport.width === this.width && viewport.height === this.height && equals(viewport.projectionMatrix, this.projectionMatrix) && equals(viewport.viewMatrix, this.viewMatrix);
- }
- }, {
- key: "project",
- value: function project(xyz) {
- var _ref2 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
- _ref2$topLeft = _ref2.topLeft,
- topLeft = _ref2$topLeft === void 0 ? true : _ref2$topLeft;
-
- var worldPosition = this.projectPosition(xyz);
- var coord = worldToPixels(worldPosition, this.pixelProjectionMatrix);
-
- var _coord = _slicedToArray(coord, 2),
- x = _coord[0],
- y = _coord[1];
-
- var y2 = topLeft ? y : this.height - y;
- return xyz.length === 2 ? [x, y2] : [x, y2, coord[2]];
- }
- }, {
- key: "unproject",
- value: function unproject(xyz) {
- var _ref3 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
- _ref3$topLeft = _ref3.topLeft,
- topLeft = _ref3$topLeft === void 0 ? true : _ref3$topLeft,
- targetZ = _ref3.targetZ;
-
- var _xyz = _slicedToArray(xyz, 3),
- x = _xyz[0],
- y = _xyz[1],
- z = _xyz[2];
-
- var y2 = topLeft ? y : this.height - y;
- var targetZWorld = targetZ && targetZ * this.pixelsPerMeter;
- var coord = pixelsToWorld([x, y2, z], this.pixelUnprojectionMatrix, targetZWorld);
-
- var _this$unprojectPositi = this.unprojectPosition(coord),
- _this$unprojectPositi2 = _slicedToArray(_this$unprojectPositi, 3),
- X = _this$unprojectPositi2[0],
- Y = _this$unprojectPositi2[1],
- Z = _this$unprojectPositi2[2];
-
- if (Number.isFinite(z)) {
- return [X, Y, Z];
- }
-
- return Number.isFinite(targetZ) ? [X, Y, targetZ] : [X, Y];
- }
- }, {
- key: "projectPosition",
- value: function projectPosition(xyz) {
- var _this$projectFlat = this.projectFlat(xyz),
- _this$projectFlat2 = _slicedToArray(_this$projectFlat, 2),
- X = _this$projectFlat2[0],
- Y = _this$projectFlat2[1];
-
- var Z = (xyz[2] || 0) * this.pixelsPerMeter;
- return [X, Y, Z];
- }
- }, {
- key: "unprojectPosition",
- value: function unprojectPosition(xyz) {
- var _this$unprojectFlat = this.unprojectFlat(xyz),
- _this$unprojectFlat2 = _slicedToArray(_this$unprojectFlat, 2),
- X = _this$unprojectFlat2[0],
- Y = _this$unprojectFlat2[1];
-
- var Z = (xyz[2] || 0) / this.pixelsPerMeter;
- return [X, Y, Z];
- }
- }, {
- key: "projectFlat",
- value: function projectFlat(xyz) {
- arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.scale;
- return xyz;
- }
- }, {
- key: "unprojectFlat",
- value: function unprojectFlat(xyz) {
- arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.scale;
- return xyz;
- }
- }]);
-
- return Viewport;
- }();
-
- function fitBounds(_ref) {
- var width = _ref.width,
- height = _ref.height,
- bounds = _ref.bounds,
- _ref$minExtent = _ref.minExtent,
- minExtent = _ref$minExtent === void 0 ? 0 : _ref$minExtent,
- _ref$maxZoom = _ref.maxZoom,
- maxZoom = _ref$maxZoom === void 0 ? 24 : _ref$maxZoom,
- _ref$padding = _ref.padding,
- padding = _ref$padding === void 0 ? 0 : _ref$padding,
- _ref$offset = _ref.offset,
- offset = _ref$offset === void 0 ? [0, 0] : _ref$offset;
-
- var _bounds = _slicedToArray(bounds, 2),
- _bounds$ = _slicedToArray(_bounds[0], 2),
- west = _bounds$[0],
- south = _bounds$[1],
- _bounds$2 = _slicedToArray(_bounds[1], 2),
- east = _bounds$2[0],
- north = _bounds$2[1];
-
- if (Number.isFinite(padding)) {
- var p = padding;
- padding = {
- top: p,
- bottom: p,
- left: p,
- right: p
- };
- } else {
- assert(Number.isFinite(padding.top) && Number.isFinite(padding.bottom) && Number.isFinite(padding.left) && Number.isFinite(padding.right));
- }
-
- var viewport = new WebMercatorViewport({
- width: width,
- height: height,
- longitude: 0,
- latitude: 0,
- zoom: 0
- });
- var nw = viewport.project([west, north]);
- var se = viewport.project([east, south]);
- var size = [Math.max(Math.abs(se[0] - nw[0]), minExtent), Math.max(Math.abs(se[1] - nw[1]), minExtent)];
- var targetSize = [width - padding.left - padding.right - Math.abs(offset[0]) * 2, height - padding.top - padding.bottom - Math.abs(offset[1]) * 2];
- assert(targetSize[0] > 0 && targetSize[1] > 0);
- var scaleX = targetSize[0] / size[0];
- var scaleY = targetSize[1] / size[1];
- var offsetX = (padding.right - padding.left) / 2 / scaleX;
- var offsetY = (padding.bottom - padding.top) / 2 / scaleY;
- var center = [(se[0] + nw[0]) / 2 + offsetX, (se[1] + nw[1]) / 2 + offsetY];
- var centerLngLat = viewport.unproject(center);
- var zoom = viewport.zoom + Math.log2(Math.abs(Math.min(scaleX, scaleY)));
- return {
- longitude: centerLngLat[0],
- latitude: centerLngLat[1],
- zoom: Math.min(zoom, maxZoom)
- };
- }
-
- var WebMercatorViewport = function (_Viewport) {
- _inherits(WebMercatorViewport, _Viewport);
-
- function WebMercatorViewport() {
- var _this;
-
- var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
- width = _ref.width,
- height = _ref.height,
- _ref$latitude = _ref.latitude,
- latitude = _ref$latitude === void 0 ? 0 : _ref$latitude,
- _ref$longitude = _ref.longitude,
- longitude = _ref$longitude === void 0 ? 0 : _ref$longitude,
- _ref$zoom = _ref.zoom,
- zoom = _ref$zoom === void 0 ? 0 : _ref$zoom,
- _ref$pitch = _ref.pitch,
- pitch = _ref$pitch === void 0 ? 0 : _ref$pitch,
- _ref$bearing = _ref.bearing,
- bearing = _ref$bearing === void 0 ? 0 : _ref$bearing,
- _ref$altitude = _ref.altitude,
- altitude = _ref$altitude === void 0 ? 1.5 : _ref$altitude,
- nearZMultiplier = _ref.nearZMultiplier,
- farZMultiplier = _ref.farZMultiplier;
-
- _classCallCheck(this, WebMercatorViewport);
-
- width = width || 1;
- height = height || 1;
- var scale = zoomToScale$1(zoom);
- altitude = Math.max(0.75, altitude);
- var center = lngLatToWorld([longitude, latitude], scale);
- center[2] = 0;
- var projectionMatrix = getProjectionMatrix({
- width: width,
- height: height,
- pitch: pitch,
- bearing: bearing,
- altitude: altitude,
- nearZMultiplier: nearZMultiplier || 1 / height,
- farZMultiplier: farZMultiplier || 1.01
- });
- var viewMatrix = getViewMatrix({
- height: height,
- center: center,
- pitch: pitch,
- bearing: bearing,
- altitude: altitude,
- flipY: true
- });
- _this = _possibleConstructorReturn(this, _getPrototypeOf(WebMercatorViewport).call(this, {
- width: width,
- height: height,
- viewMatrix: viewMatrix,
- projectionMatrix: projectionMatrix
- }));
- _this.latitude = latitude;
- _this.longitude = longitude;
- _this.zoom = zoom;
- _this.pitch = pitch;
- _this.bearing = bearing;
- _this.altitude = altitude;
- _this.scale = scale;
- _this.center = center;
- _this.pixelsPerMeter = getDistanceScales$1(_assertThisInitialized(_assertThisInitialized(_this))).pixelsPerMeter[2];
- Object.freeze(_assertThisInitialized(_assertThisInitialized(_this)));
- return _this;
- }
-
- _createClass(WebMercatorViewport, [{
- key: "projectFlat",
- value: function projectFlat(lngLat) {
- var scale = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.scale;
- return lngLatToWorld(lngLat, scale);
- }
- }, {
- key: "unprojectFlat",
- value: function unprojectFlat(xy) {
- var scale = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.scale;
- return worldToLngLat(xy, scale);
- }
- }, {
- key: "getMapCenterByLngLatPosition",
- value: function getMapCenterByLngLatPosition(_ref2) {
- var lngLat = _ref2.lngLat,
- pos = _ref2.pos;
- var fromLocation = pixelsToWorld(pos, this.pixelUnprojectionMatrix);
- var toLocation = lngLatToWorld(lngLat, this.scale);
- var translate = add([], toLocation, negate$1([], fromLocation));
- var newCenter = add([], this.center, translate);
- return worldToLngLat(newCenter, this.scale);
- }
- }, {
- key: "getLocationAtPoint",
- value: function getLocationAtPoint(_ref3) {
- var lngLat = _ref3.lngLat,
- pos = _ref3.pos;
- return this.getMapCenterByLngLatPosition({
- lngLat: lngLat,
- pos: pos
- });
- }
- }, {
- key: "fitBounds",
- value: function fitBounds$1(bounds) {
- var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
- var width = this.width,
- height = this.height;
-
- var _fitBounds2 = fitBounds(Object.assign({
- width: width,
- height: height,
- bounds: bounds
- }, options)),
- longitude = _fitBounds2.longitude,
- latitude = _fitBounds2.latitude,
- zoom = _fitBounds2.zoom;
-
- return new WebMercatorViewport({
- width: width,
- height: height,
- longitude: longitude,
- latitude: latitude,
- zoom: zoom
- });
- }
- }]);
-
- return WebMercatorViewport;
- }(Viewport);
-
- /**
- * borrow from
- * https://github.com/uber-common/viewport-mercator-project/blob/master/src/web-mercator-utils.js
- */
-
- const PI = Math.PI;
- const DEGREES_TO_RADIANS = PI / 180;
- // const RADIANS_TO_DEGREES = 180 / PI;
- const TILE_SIZE = 512;
- // Average circumference (40075 km equatorial, 40007 km meridional)
- const EARTH_CIRCUMFERENCE = 40.03e6;
-
- // Mapbox default altitude
- // const DEFAULT_ALTITUDE = 1.5;
-
- function zoomToScale(zoom) {
- return Math.pow(2, zoom);
- }
-
- /**
- * Calculate distance scales in meters around current lat/lon, both for
- * degrees and pixels.
- * In mercator projection mode, the distance scales vary significantly
- * with latitude.
- */
- function getDistanceScales(options) {
- let {
- latitude = 0, zoom = 1, scale, highPrecision = false
- } = options;
-
- // Calculate scale from zoom if not provided
- scale = scale !== undefined ? scale : zoomToScale(zoom);
-
- const result = {};
- const worldSize = TILE_SIZE * scale;
- const latCosine = Math.cos(latitude * DEGREES_TO_RADIANS);
-
- /**
- * Number of pixels occupied by one degree longitude around current lat/lon:
- pixelsPerDegreeX = d(lngLatToWorld([lng, lat])[0])/d(lng)
- = scale * TILE_SIZE * DEGREES_TO_RADIANS / (2 * PI)
- pixelsPerDegreeY = d(lngLatToWorld([lng, lat])[1])/d(lat)
- = -scale * TILE_SIZE * DEGREES_TO_RADIANS / cos(lat * DEGREES_TO_RADIANS) / (2 * PI)
- */
- const pixelsPerDegreeX = worldSize / 360;
- const pixelsPerDegreeY = pixelsPerDegreeX / latCosine;
-
- /**
- * Number of pixels occupied by one meter around current lat/lon:
- */
- const altPixelsPerMeter = worldSize / EARTH_CIRCUMFERENCE / latCosine;
-
- /**
- * LngLat: longitude -> east and latitude -> north (bottom left)
- * UTM meter offset: x -> east and y -> north (bottom left)
- * World space: x -> east and y -> south (top left)
- *
- * Y needs to be flipped when converting delta degree/meter to delta pixels
- */
- result.pixelsPerMeter = [altPixelsPerMeter, -altPixelsPerMeter, altPixelsPerMeter];
- result.metersPerPixel = [1 / altPixelsPerMeter, -1 / altPixelsPerMeter, 1 / altPixelsPerMeter];
-
- result.pixelsPerDegree = [pixelsPerDegreeX, -pixelsPerDegreeY, altPixelsPerMeter];
- result.degreesPerPixel = [1 / pixelsPerDegreeX, -1 / pixelsPerDegreeY, 1 / altPixelsPerMeter];
-
- /**
- * Taylor series 2nd order for 1/latCosine
- f'(a) * (x - a)
- = d(1/cos(lat * DEGREES_TO_RADIANS))/d(lat) * dLat
- = DEGREES_TO_RADIANS * tan(lat * DEGREES_TO_RADIANS) / cos(lat * DEGREES_TO_RADIANS) * dLat
- */
- if (highPrecision) {
- const latCosine2 = DEGREES_TO_RADIANS * Math.tan(latitude * DEGREES_TO_RADIANS) / latCosine;
- const pixelsPerDegreeY2 = pixelsPerDegreeX * latCosine2 / 2;
-
- const altPixelsPerDegree2 = worldSize / EARTH_CIRCUMFERENCE * latCosine2;
- const altPixelsPerMeter2 = altPixelsPerDegree2 / pixelsPerDegreeY * altPixelsPerMeter;
-
- result.pixelsPerDegree2 = [0, -pixelsPerDegreeY2, altPixelsPerDegree2];
- result.pixelsPerMeter2 = [altPixelsPerMeter2, 0, altPixelsPerMeter2];
- }
-
- // Main results, used for converting meters to latlng deltas and scaling offsets
- return result;
- }
-
- return class {
-
- constructor(options) {
- this.id = options.id;
- this.type = "custom";
- this.renderingMode = '2d';
- this.url = options.url;
- if(!!!(options.tileType)){
- let tiles = options.subdomains.map(i => options.url.replaceAll('{s}',i));
- !(tiles.length) && (tiles = [options.url]);
- this.layerParams = {
- source:{"type": "raster", tiles, "tileSize": 256},
- layer:{"type": "raster", "source": options.id, "minzoom": options.minZoom || 0, "maxzoom": options.maxZoom || 18}
- }
- }
-
- this.options = {
- //服务器编号
- subdomains: null,
- minZoom: 3,
- maxZoom: 18,
- tileType: 'xyz' //bd09,xyz
- };
- setOptions(this, options); //合并属性
-
- //着色器程序
- this.program;
-
- //存放当前显示的瓦片
- this.showTiles = [];
-
- //存放所有加载过的瓦片
- this.tileCache = {};
-
- //存放瓦片号对应的经纬度
- this.gridCache = {};
-
- //记录渲染时的变换矩阵。
- //如果瓦片因为网速慢,在渲染完成后才加载过来,可以使用这个矩阵主动更新渲染
- this.matrix;
-
- this.map;
-
- //记录当前图层是否在显示
- this.isLayerShow;
-
- this.transformBaidu = new TransformClassBaidu();
- }
-
- onAdd(map, gl) {
- this.map = map;
-
- // 着色器程序参考:https://github.com/xiaoiver/custom-mapbox-layer/blob/master/src/shaders/project.glsl
- var vertexSource = "" + "uniform mat4 u_matrix;" + "attribute vec2 a_pos;" + "attribute vec2 a_TextCoord;" + "varying vec2 v_TextCoord;" + "const float TILE_SIZE = 512.0;" + "const float PI = 3.1415926536;" + "const float WORLD_SCALE = TILE_SIZE / (PI * 2.0);" + "uniform float u_project_scale;" + "uniform bool u_is_offset;" + "uniform vec3 u_pixels_per_degree;" + "uniform vec3 u_pixels_per_degree2;" + "uniform vec3 u_pixels_per_meter;" + "uniform vec2 u_viewport_center;" + "uniform vec4 u_viewport_center_projection;" + "uniform vec2 u_viewport_size;" + "float project_scale(float meters) {" + " return meters * u_pixels_per_meter.z;" + "}" + "vec3 project_scale(vec3 position) {" + " return position * u_pixels_per_meter;" + "}" + "vec2 project_mercator(vec2 lnglat) {" + " float x = lnglat.x;" + " return vec2(" + " radians(x) + PI, PI - log(tan(PI * 0.25 + radians(lnglat.y) * 0.5))" + " );" + "}" + "vec4 project_offset(vec4 offset) {" + " float dy = offset.y;" + " dy = clamp(dy, -1., 1.);" + " vec3 pixels_per_unit = u_pixels_per_degree + u_pixels_per_degree2 * dy;" + " return vec4(offset.xyz * pixels_per_unit, offset.w);" + "}" + "vec4 project_position(vec4 position) {" + " if (u_is_offset) {" + " float X = position.x - u_viewport_center.x;" + " float Y = position.y - u_viewport_center.y;" + " return project_offset(vec4(X, Y, position.z, position.w));" + " }" + " else {" + " return vec4(" + " project_mercator(position.xy) * WORLD_SCALE * u_project_scale, project_scale(position.z), position.w" + " );" + " }" + "}" + "vec4 project_to_clipping_space(vec3 position) {" + " vec4 project_pos = project_position(vec4(position, 1.0));" + " return u_matrix * project_pos + u_viewport_center_projection;" + "}" + "void main() {" + " vec4 project_pos = project_position(vec4(a_pos, 0.0, 1.0));" + " gl_Position = u_matrix * project_pos + u_viewport_center_projection;" + " v_TextCoord = a_TextCoord;" + "}";
-
- var fragmentSource = "" + "precision mediump float;" + "uniform sampler2D u_Sampler; " + "varying vec2 v_TextCoord; " + "void main() {" + " gl_FragColor = texture2D(u_Sampler, v_TextCoord);" +
- // " gl_FragColor = vec4(1.0, 0.0, 0.0, 0.5);" +
- "}";
-
- //初始化顶点着色器
- var vertexShader = gl.createShader(gl.VERTEX_SHADER);
- gl.shaderSource(vertexShader, vertexSource);
- gl.compileShader(vertexShader);
- //初始化片元着色器
- var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
- gl.shaderSource(fragmentShader, fragmentSource);
- gl.compileShader(fragmentShader);
- //初始化着色器程序
- this.program = gl.createProgram();
- gl.attachShader(this.program, vertexShader);
- gl.attachShader(this.program, fragmentShader);
- gl.linkProgram(this.program);
-
- //获取顶点位置变量
- this.a_Pos = gl.getAttribLocation(this.program, "a_pos");
- this.a_TextCoord = gl.getAttribLocation(this.program, 'a_TextCoord');
-
- this.isLayerShow = true;
- map.on('move', () => {
- if (this.isLayerShow) this.update(gl, map);
- });
- this.update(gl, map);
- }
-
- update(gl, map) {
- var center = map.getCenter();
- var zoom;
- var bounds = map.getBounds();
-
- var minTile, maxTile;
- if (this.options.tileType === 'xyz') {
- zoom = parseInt(map.getZoom() + 1.4); //解决瓦片上文字偏大的问题
- //把当前显示范围做偏移,后面加载瓦片时会再偏移回来
- //如果不这样做的话,大比例尺时,瓦片偏移后,屏幕边缘会有空白区域
- var northWest = gcj02_To_gps84(bounds.getNorthWest());
- var southEast = gcj02_To_gps84(bounds.getSouthEast());
- //算出当前范围的瓦片编号
- minTile = lonLatToTileNumbers(northWest.lng, northWest.lat, zoom);
- maxTile = lonLatToTileNumbers(southEast.lng, southEast.lat, zoom);
- } else if (this.options.tileType === 'bd09') {
- zoom = parseInt(map.getZoom() + 1.8); //解决瓦片上文字偏大的问题
- var southWest = gps84_To_bd09(bounds.getSouthWest());
- var northEast = gps84_To_bd09(bounds.getNorthEast());
- minTile = this.transformBaidu.lnglatToTile(southWest.lng, southWest.lat, zoom);
- maxTile = this.transformBaidu.lnglatToTile(northEast.lng, northEast.lat, zoom);
- }
- var currentTiles = [];
- for (var x = minTile[0]; x <= maxTile[0]; x++) {
- for (var y = minTile[1]; y <= maxTile[1]; y++) {
- var xyz = {
- x: x,
- y: y,
- z: zoom
- };
- currentTiles.push(xyz);
-
- //把瓦片号对应的经纬度缓存起来,
- //存起来是因为贴纹理时需要瓦片4个角的经纬度,这样可以避免重复计算
- //行和列向外多计算一个瓦片数,这样保证瓦片4个角都有经纬度可以取到
- this.addGridCache(xyz, 0, 0);
- if (x === maxTile[0]) this.addGridCache(xyz, 1, 0);
- if (y === maxTile[1]) this.addGridCache(xyz, 0, 1);
- if (x === maxTile[0] && y === maxTile[1]) this.addGridCache(xyz, 1, 1);
- }
- }
-
- //瓦片设置为从中间向周边的排序
- if (this.options.tileType === 'xyz') var centerTile = lonLatToTileNumbers(center.lng, center.lat, zoom); //计算中心点所在的瓦片号
- else if (this.options.tileType === 'bd09') centerTile = this.transformBaidu.lnglatToTile(center.lng, center.lat, zoom);
- currentTiles.sort((a, b) => {
- return this.tileDistance(a, centerTile) - this.tileDistance(b, centerTile);
- });
-
- //加载瓦片
- this.showTiles = [];
- for (var xyz of currentTiles) {
- //走缓存或新加载
- if (this.tileCache[this.createTileKey(xyz)]) {
- this.showTiles.push(this.tileCache[this.createTileKey(xyz)]);
- } else {
- var tile = this.createTile(gl, xyz);
- this.showTiles.push(tile);
- this.tileCache[this.createTileKey(xyz)] = tile;
- }
- }
- }
-
- //缓存瓦片号对应的经纬度
- addGridCache(xyz, xPlus, yPlus) {
- var key = this.createTileKey(xyz.x + xPlus, xyz.y + yPlus, xyz.z);
- if (!this.gridCache[key]) {
- if (this.options.tileType === 'xyz') this.gridCache[key] = gps84_To_gcj02(tileNumbersToLonLat(xyz.x + xPlus, xyz.y + yPlus, xyz.z));else if (this.options.tileType === 'bd09') this.gridCache[key] = bd09_To_gps84(this.transformBaidu.pixelToLnglat(0, 0, xyz.x + xPlus, xyz.y + yPlus, xyz.z));
- }
- }
-
- //计算两个瓦片编号的距离
- tileDistance(tile1, tile2) {
- //计算直角三角形斜边长度,c(斜边)=√(a²+b²)。(a,b为两直角边)
- return Math.sqrt(Math.pow(tile1.x - tile2[0], 2) + Math.pow(tile1.y - tile2[1], 2));
- }
-
- //创建瓦片id
- createTileKey(xyz, y, z) {
- if (xyz instanceof Object) {
- return xyz.z + '/' + xyz.x + '/' + xyz.y;
- } else {
- var x = xyz;
- return z + '/' + x + '/' + y;
- }
- }
-
- //创建瓦片
- createTile(gl, xyz) {
- //替换请求地址中的变量
- var _url = template(this.url, {
- s: this.options.subdomains[Math.abs(xyz.x + xyz.y) % this.options.subdomains.length],
- x: xyz.x,
- y: xyz.y,
- z: xyz.z
- });
-
- var tile = {
- xyz: xyz
- };
-
- //瓦片编号转经纬度,并进行偏移
- var leftTop, rightTop, leftBottom, rightBottom;
- if (this.options.tileType === 'xyz') {
- leftTop = this.gridCache[this.createTileKey(xyz)];
- rightTop = this.gridCache[this.createTileKey(xyz.x + 1, xyz.y, xyz.z)];
- leftBottom = this.gridCache[this.createTileKey(xyz.x, xyz.y + 1, xyz.z)];
- rightBottom = this.gridCache[this.createTileKey(xyz.x + 1, xyz.y + 1, xyz.z)];
- } else if (this.options.tileType === 'bd09') {
- leftTop = this.gridCache[this.createTileKey(xyz.x, xyz.y + 1, xyz.z)];
- rightTop = this.gridCache[this.createTileKey(xyz.x + 1, xyz.y + 1, xyz.z)];
- leftBottom = this.gridCache[this.createTileKey(xyz)];
- rightBottom = this.gridCache[this.createTileKey(xyz.x + 1, xyz.y, xyz.z)];
- }
-
- //顶点坐标+纹理坐标
- var attrData = new Float32Array([leftTop.lng, leftTop.lat, 0.0, 1.0, leftBottom.lng, leftBottom.lat, 0.0, 0.0, rightTop.lng, rightTop.lat, 1.0, 1.0, rightBottom.lng, rightBottom.lat, 1.0, 0.0]);
- // var attrData = new Float32Array([
- // 116.38967958133532, 39.90811009556515, 0.0, 1.0,
- // 116.38967958133532, 39.90294980726742, 0.0, 0.0,
- // 116.39486013141436, 39.90811009556515, 1.0, 1.0,
- // 116.39486013141436, 39.90294980726742, 1.0, 0.0
- // ])
- var FSIZE = attrData.BYTES_PER_ELEMENT;
- //创建缓冲区并传入数据
- var buffer = gl.createBuffer();
- gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
- gl.bufferData(gl.ARRAY_BUFFER, attrData, gl.STATIC_DRAW);
- tile.buffer = buffer;
- //从缓冲区中获取顶点数据的参数
- tile.PosParam = {
- size: 2,
- stride: FSIZE * 4,
- offset: 0
- //从缓冲区中获取纹理数据的参数
- };tile.TextCoordParam = {
- size: 2,
- stride: FSIZE * 4,
- offset: FSIZE * 2
-
- //加载瓦片
- };var img = new Image();
- img.onload = () => {
- // 创建纹理对象
- tile.texture = gl.createTexture();
- //向target绑定纹理对象
- gl.bindTexture(gl.TEXTURE_2D, tile.texture);
- //对纹理进行Y轴反转
- gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, 1);
- //配置纹理图像
- gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, img);
-
- tile.isLoad = true;
-
- this.map.triggerRepaint(); //主动让地图重绘
- };
- img.crossOrigin = true;
- img.src = _url;
-
- return tile;
- }
-
- //渲染
- render(gl, matrix) {
-
- if (this.map.getZoom() < this.options.minZoom || this.map.getZoom() > this.options.maxZoom) return;
-
- //记录变换矩阵,用于瓦片加载后主动绘制
- this.matrix = matrix;
-
- //应用着色程序
- //必须写到这里,不能写到onAdd中,不然gl中的着色程序可能不是上面写的,会导致下面的变量获取不到
- gl.useProgram(this.program);
-
- for (var tile of this.showTiles) {
- if (!tile.isLoad) continue;
-
- //向target绑定纹理对象
- gl.bindTexture(gl.TEXTURE_2D, tile.texture);
- //开启0号纹理单元
- gl.activeTexture(gl.TEXTURE0);
- //配置纹理参数
- gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
- gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
- gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.MIRRORED_REPEAT);
- // 获取纹理的存储位置
- var u_Sampler = gl.getUniformLocation(this.program, 'u_Sampler');
- //将0号纹理传递给着色器
- gl.uniform1i(u_Sampler, 0);
-
- gl.bindBuffer(gl.ARRAY_BUFFER, tile.buffer);
- //设置从缓冲区获取顶点数据的规则
- gl.vertexAttribPointer(this.a_Pos, tile.PosParam.size, gl.FLOAT, false, tile.PosParam.stride, tile.PosParam.offset);
- gl.vertexAttribPointer(this.a_TextCoord, tile.TextCoordParam.size, gl.FLOAT, false, tile.TextCoordParam.stride, tile.TextCoordParam.offset);
- //激活顶点数据缓冲区
- gl.enableVertexAttribArray(this.a_Pos);
- gl.enableVertexAttribArray(this.a_TextCoord);
-
- // 设置位置的顶点参数
- this.setVertex(gl);
-
- //开启阿尔法混合,实现注记半透明效果
- gl.enable(gl.BLEND);
- gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA);
-
- //绘制图形
- gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
- }
- }
-
- // 设置位置的顶点参数
- //参考:https://github.com/xiaoiver/custom-mapbox-layer/blob/master/src/layers/PointCloudLayer2.ts
- setVertex(gl) {
- const currentZoomLevel = this.map.getZoom();
- const bearing = this.map.getBearing();
- const pitch = this.map.getPitch();
- const center = this.map.getCenter();
-
- const viewport = new WebMercatorViewport({
- // width: gl.drawingBufferWidth*1.11,
- // height: gl.drawingBufferHeight*1.11,
- width: gl.drawingBufferWidth,
- height: gl.drawingBufferHeight,
-
- longitude: center.lng,
- latitude: center.lat,
- zoom: currentZoomLevel,
- pitch,
- bearing
- });
-
- // @ts-ignore
- const { viewProjectionMatrix, projectionMatrix, viewMatrix, viewMatrixUncentered } = viewport;
-
- let drawParams = {
- // @ts-ignore
- 'u_matrix': viewProjectionMatrix,
- 'u_point_size': this.pointSize,
- 'u_is_offset': false,
- 'u_pixels_per_degree': [0, 0, 0],
- 'u_pixels_per_degree2': [0, 0, 0],
- 'u_viewport_center': [0, 0],
- 'u_pixels_per_meter': [0, 0, 0],
- 'u_project_scale': zoomToScale(currentZoomLevel),
- 'u_viewport_center_projection': [0, 0, 0, 0]
- };
-
- if (currentZoomLevel > 12) {
- const { pixelsPerDegree, pixelsPerDegree2 } = getDistanceScales({
- longitude: center.lng,
- latitude: center.lat,
- zoom: currentZoomLevel,
- highPrecision: true
- });
-
- const positionPixels = viewport.projectFlat([Math.fround(center.lng), Math.fround(center.lat)], Math.pow(2, currentZoomLevel));
-
- const projectionCenter = transformMat4([], [positionPixels[0], positionPixels[1], 0.0, 1.0], viewProjectionMatrix);
-
- // Always apply uncentered projection matrix if available (shader adds center)
- let viewMatrix2 = viewMatrixUncentered || viewMatrix;
-
- // Zero out 4th coordinate ("after" model matrix) - avoids further translations
- // viewMatrix = new Matrix4(viewMatrixUncentered || viewMatrix)
- // .multiplyRight(VECTOR_TO_POINT_MATRIX);
- let viewProjectionMatrix2 = multiply([], projectionMatrix, viewMatrix2);
- const VECTOR_TO_POINT_MATRIX = [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0];
- viewProjectionMatrix2 = multiply([], viewProjectionMatrix2, VECTOR_TO_POINT_MATRIX);
-
- drawParams['u_matrix'] = viewProjectionMatrix2;
- drawParams['u_is_offset'] = true;
- drawParams['u_viewport_center'] = [Math.fround(center.lng), Math.fround(center.lat)];
- // @ts-ignore
- drawParams['u_viewport_center_projection'] = projectionCenter;
- drawParams['u_pixels_per_degree'] = pixelsPerDegree && pixelsPerDegree.map(p => Math.fround(p));
- drawParams['u_pixels_per_degree2'] = pixelsPerDegree2 && pixelsPerDegree2.map(p => Math.fround(p));
- }
-
- gl.uniformMatrix4fv(gl.getUniformLocation(this.program, "u_matrix"), false, drawParams['u_matrix']);
-
- gl.uniform1f(gl.getUniformLocation(this.program, "u_project_scale"), drawParams['u_project_scale']);
- gl.uniform1i(gl.getUniformLocation(this.program, "u_is_offset"), drawParams['u_is_offset'] ? 1 : 0);
- gl.uniform3fv(gl.getUniformLocation(this.program, "u_pixels_per_degree"), drawParams['u_pixels_per_degree']);
- gl.uniform3fv(gl.getUniformLocation(this.program, "u_pixels_per_degree2"), drawParams['u_pixels_per_degree2']);
- gl.uniform3fv(gl.getUniformLocation(this.program, "u_pixels_per_meter"), drawParams['u_pixels_per_meter']);
- gl.uniform2fv(gl.getUniformLocation(this.program, "u_viewport_center"), drawParams['u_viewport_center']);
- gl.uniform4fv(gl.getUniformLocation(this.program, "u_viewport_center_projection"), drawParams['u_viewport_center_projection']);
- }
-
- //当map移除当前图层时调用
- onRemove(map, gl) {
- this.isLayerShow = false;
- }
-
- addTo(map){
- this.map = map;
- if(!this.layerParams) return map.addLayer(this);
- this.map.addSource(this.id,this.layerParams.source);
- this.map.addLayer({id:this.id,...this.layerParams.layer});
- }
-
- remove(map, gl) {
- if(!this.map) return console.warn(`Please trigger "addTo" This method is called after the "map" instance is passed in;`);
- let layer = this.map.getLayer(this.id);
- if(!layer) return console.warn(`The current layer has not been added to the map;`);
- this.map.removeLayer(this.id);
- }
-
- hide(){
- this.isLayerShow = false;
- this.map.setLayoutProperty(this.id, 'visibility', 'none');
- }
-
- show(){
- this.isLayerShow = true;
- this.map.setLayoutProperty(this.id, 'visibility', 'visible');
- }
- }
- })));