function yzPanorama() {
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this._x_PI = (3e3 * Math.PI) / 180;
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this._ee = 0.006693421622965943;
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this._ellipsoid = {
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x: 6378245,
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y: 6378245,
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z: 6356863.0188
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};
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}
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yzPanorama.prototype.open = function(option) {
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this.elementId = option.id;
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this.closeId = option.closeId;
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let closeBtn = document.getElementById(this.closeId);
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document.getElementById(this.elementId).style = "display:block";
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closeBtn.style = "display:block";
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let _this = this;
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closeBtn.onclick = function (){
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_this.close();
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}
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let panorama = new BMap.Panorama(this.elementId);
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let py = this._wgs84togcj02({
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lng: option.lng,
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lat: option.lat
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});
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let bdzb = this._gcj02tobd09({
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lng: py.lng,
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lat: py.lat
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});
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panorama.setPosition(new BMap.Point(bdzb.lng, bdzb.lat));
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panorama.setOptions({
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navigationControl: true,
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albumsControl: false,
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closeControl: false,
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enableScrollWheelOutPanorama: true
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});
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};
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yzPanorama.prototype.close = function() {
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document.getElementById(this.elementId).style = "display:none";
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document.getElementById(this.closeId).style = "display:none";
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};
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yzPanorama.prototype._out_of_china = function(t, e) {
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return (e = +e), !((t = +t) > 73.66 && t < 135.05 && e > 3.86 && e < 53.55);
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};
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yzPanorama.prototype._transformlat = function(t, e) {
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var i =
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2 * (t = +t) -
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100 +
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3 * (e = +e) +
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0.2 * e * e +
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0.1 * t * e +
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0.2 * Math.sqrt(Math.abs(t));
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return (
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(i +=
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(2 * (20 * Math.sin(6 * t * Math.PI) + 20 * Math.sin(2 * t * Math.PI))) /
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3),
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(i +=
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(2 * (20 * Math.sin(e * Math.PI) + 40 * Math.sin((e / 3) * Math.PI))) /
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3) +
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(2 *
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(160 * Math.sin((e / 12) * Math.PI) +
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320 * Math.sin((e * Math.PI) / 30))) /
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3
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);
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};
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yzPanorama.prototype._transformlng = function(t, e) {
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var i =
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300 +
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(t = +t) +
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2 * (e = +e) +
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0.1 * t * t +
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0.1 * t * e +
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0.1 * Math.sqrt(Math.abs(t));
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return (
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(i +=
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(2 * (20 * Math.sin(6 * t * Math.PI) + 20 * Math.sin(2 * t * Math.PI))) /
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3),
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(i +=
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(2 * (20 * Math.sin(t * Math.PI) + 40 * Math.sin((t / 3) * Math.PI))) /
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3) +
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(2 *
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(150 * Math.sin((t / 12) * Math.PI) +
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300 * Math.sin((t / 30) * Math.PI))) /
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3
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);
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};
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yzPanorama.prototype._gcj02tobd09 = function(t) {
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var e = +t.lat,
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i = +t.lng,
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o = Math.sqrt(i * i + e * e) + 2e-5 * Math.sin(e * this._x_PI),
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n = Math.atan2(e, i) + 3e-6 * Math.cos(i * this._x_PI);
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return {
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lng: o * Math.cos(n) + 0.0065,
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lat: o * Math.sin(n) + 0.006
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};
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};
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yzPanorama.prototype._wgs84togcj02 = function(t) {
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var e = +t.lat,
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i = +t.lng;
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if (this._out_of_china(i, e)) return t;
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var o = this._transformlat(i - 105, e - 35),
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n = this._transformlng(i - 105, e - 35),
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r = (e / 180) * Math.PI,
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a = Math.sin(r);
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a = 1 - this._ee * a * a;
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var s = Math.sqrt(a);
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return (
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(o =
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(180 * o) / (((this._ellipsoid.x * (1 - this._ee)) / (a * s)) * Math.PI)),
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{
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lng:
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i + (n = (180 * n) / ((this._ellipsoid.x / s) * Math.cos(r) * Math.PI)),
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lat: e + o
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}
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);
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};
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