@googlemaps/markerclusterer - npm Package Compare versions

Comparing version 1.0.20 to 1.0.21

dist/index.min.js

@@ -1,2 +0,2 @@
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o=t.numberOfClusters,s=Xo(t,["numberOfClusters"]);return(n=r.call(this,s)).numberOfClusters=o,n}return n(i,[{key:"cluster",value:function(t){var e=t.markers,r=t.map,n=[];return 0===e.length||function(t,e){void 0===e&&(e={});var r=t.features.length;e.numberOfClusters=e.numberOfClusters||Math.round(Math.sqrt(r/2)),e.numberOfClusters>r&&(e.numberOfClusters=r),!0!==e.mutate&&(t=Wi(t));var n=$i(t),o=n.slice(0,e.numberOfClusters),i=as(n,e.numberOfClusters,o),s={};return i.centroids.forEach((function(t,e){s[e]=t})),function(t,e){if("Feature"===t.type)e(t,0);else if("FeatureCollection"===t.type)for(var r=0;r<t.features.length&&!1!==e(t.features[r],r);r++);}(t,(function(t,e){var r=i.idxs[e];t.properties.cluster=r,t.properties.centroid=s[r]})),t}(Zi(e.map((function(t){return qi([t.getPosition().lng(),t.getPosition().lat()])}))),{numberOfClusters:this.numberOfClusters instanceof 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o=0;o<this._datasetLength;o++)if(1!==this._visited[o]){this._visited[o]=1;var i=this._regionQuery(o);if(i.length<this.minPts)this.noise.push(o);else{var s=this.clusters.length;this.clusters.push([]),this._addToCluster(o,s),this._expandCluster(s,i)}}return this.clusters},e.prototype._init=function(t,e,r,n){if(t){if(!(t instanceof Array))throw Error("Dataset must be of type array, "+typeof t+" given");this.dataset=t,this.clusters=[],this.noise=[],this._datasetLength=t.length,this._visited=new Array(this._datasetLength),this._assigned=new Array(this._datasetLength)}e&&(this.epsilon=e),r&&(this.minPts=r),n&&(this.distance=n)},e.prototype._expandCluster=function(t,e){for(var r=0;r<e.length;r++){var n=e[r];if(1!==this._visited[n]){this._visited[n]=1;var o=this._regionQuery(n);o.length>=this.minPts&&(e=this._mergeArrays(e,o))}1!==this._assigned[n]&&this._addToCluster(n,t)}},e.prototype._addToCluster=function(t,e){this.clusters[e].push(t),this._assigned[t]=1},e.prototype._regionQuery=function(t){for(var e=[],r=0;r<this._datasetLength;r++){this.distance(this.dataset[t],this.dataset[r])<this.epsilon&&e.push(r)}return e},e.prototype._mergeArrays=function(t,e){for(var r=e.length,n=0;n<r;n++){var o=e[n];t.indexOf(o)<0&&t.push(o)}return t},e.prototype._euclideanDistance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;)r+=(t[n]-e[n])*(t[n]-e[n]);return Math.sqrt(r)},t.exports&&(t.exports=e)}(Es);var Cs={exports:{}};!function(t){function e(t,e,r){this.k=3,this.dataset=[],this.assignments=[],this.centroids=[],this.init(t,e,r)}e.prototype.init=function(t,e,r){this.assignments=[],this.centroids=[],void 0!==t&&(this.dataset=t),void 0!==e&&(this.k=e),void 0!==r&&(this.distance=r)},e.prototype.run=function(t,e){this.init(t,e);for(var r=this.dataset.length,n=0;n<this.k;n++)this.centroids[n]=this.randomCentroid();for(var o=!0;o;){o=this.assign();for(var i=0;i<this.k;i++){for(var s=new Array(f),a=0,u=0;u<f;u++)s[u]=0;for(var c=0;c<r;c++){var f=this.dataset[c].length;if(i===this.assignments[c]){for(u=0;u<f;u++)s[u]+=this.dataset[c][u];a++}}if(a>0){for(u=0;u<f;u++)s[u]/=a;this.centroids[i]=s}else this.centroids[i]=this.randomCentroid(),o=!0}}return this.getClusters()},e.prototype.randomCentroid=function(){var t,e,r=this.dataset.length-1;do{e=Math.round(Math.random()*r),t=this.dataset[e]}while(this.centroids.indexOf(t)>=0);return t},e.prototype.assign=function(){for(var t,e=!1,r=this.dataset.length,n=0;n<r;n++)(t=this.argmin(this.dataset[n],this.centroids,this.distance))!=this.assignments[n]&&(this.assignments[n]=t,e=!0);return e},e.prototype.getClusters=function(){for(var t,e=new Array(this.k),r=0;r<this.assignments.length;r++)void 0===e[t=this.assignments[r]]&&(e[t]=[]),e[t].push(r);return e},e.prototype.argmin=function(t,e,r){for(var n,o=Number.MAX_VALUE,i=0,s=e.length,a=0;a<s;a++)(n=r(t,e[a]))<o&&(o=n,i=a);return i},e.prototype.distance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;){var o=t[n]-e[n];r+=o*o}return Math.sqrt(r)},t.exports&&(t.exports=e)}(Cs);var js,Ls={exports:{}},As={exports:{}};!function(t){function e(t,e,r){this._queue=[],this._priorities=[],this._sorting="desc",this._init(t,e,r)}e.prototype.insert=function(t,e){for(var r=this._queue.length,n=r;n--;){var o=this._priorities[n];"desc"===this._sorting?e>o&&(r=n):e<o&&(r=n)}this._insertAt(t,e,r)},e.prototype.remove=function(t){for(var e=this._queue.length;e--;){if(t===this._queue[e]){this._queue.splice(e,1),this._priorities.splice(e,1);break}}},e.prototype.forEach=function(t){this._queue.forEach(t)},e.prototype.getElements=function(){return this._queue},e.prototype.getElementPriority=function(t){return this._priorities[t]},e.prototype.getPriorities=function(){return 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a=this.clusters.length-1;this._orderedList.push(i);var u=new e(null,null,"asc"),c=this._regionQuery(i);void 0!==this._distanceToCore(i)&&(this._updateQueue(i,c,u),this._expandCluster(a,u))}return this.clusters},r.prototype.getReachabilityPlot=function(){for(var t=[],e=0,r=this._orderedList.length;e<r;e++){var n=this._orderedList[e],o=this._reachability[n];t.push([n,o])}return t},r.prototype._init=function(t,e,r,n){if(t){if(!(t instanceof Array))throw Error("Dataset must be of type array, "+typeof t+" given");this.dataset=t,this.clusters=[],this._reachability=new Array(this.dataset.length),this._processed=new Array(this.dataset.length),this._coreDistance=0,this._orderedList=[]}e&&(this.epsilon=e),r&&(this.minPts=r),n&&(this.distance=n)},r.prototype._updateQueue=function(t,e,r){var n=this;this._coreDistance=this._distanceToCore(t),e.forEach((function(e){if(void 0===n._processed[e]){var o=n.distance(n.dataset[t],n.dataset[e]),i=Math.max(n._coreDistance,o);void 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Math.sqrt(r)},t.exports&&(t.exports=r)}(Ls),(js=Ss).exports&&(js.exports={DBSCAN:Es.exports,KMEANS:Cs.exports,OPTICS:Ls.exports,PriorityQueue:As.exports});var Ts=Ss.exports;var Is={units:"kilometers",mutate:!1,minPoints:1},Ns=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.maxDistance,s=void 0===o?200:o,a=t.minPoints,u=void 0===a?Is.minPoints:a,c=Xo(t,["maxDistance","minPoints"]);return(n=r.call(this,c)).maxDistance=s,n.options=Object.assign(Object.assign({},Is),{minPoints:u}),n}return n(i,[{key:"cluster",value:function(t){var e=t.markers,r=t.mapCanvasProjection,n=Zi(e.map((function(t){var e=r.fromLatLngToContainerPixel(t.getPosition());return qi([e.x,e.y])}))),o=[];return function(t,e,r){void 0===r&&(r={}),!0!==r.mutate&&(t=Wi(t)),r.minPoints=r.minPoints||3;var n=new Ts.DBSCAN,o=n.run($i(t),Vi(e,r.units),r.minPoints,Ps),i=-1;return o.forEach((function(e){i++,e.forEach((function(e){var r=t.features[e];r.properties||(r.properties={}),r.properties.cluster=i,r.properties.dbscan="core"}))})),n.noise.forEach((function(e){var r=t.features[e];r.properties||(r.properties={}),r.properties.cluster?r.properties.dbscan="edge":r.properties.dbscan="noise"})),t}(n,this.maxDistance,this.options).features.forEach((function(t,r){o[t.properties.cluster]||(o[t.properties.cluster]=[]),o[t.properties.cluster].push(e[r])})),o.map((function(t){return new di({markers:t})}))}}]),i}(xi),Ds={exports:{}};!function(t,e){t.exports=function(){function t(r,n,o,i,s,a){if(!(s-i<=o)){var u=i+s>>1;e(r,n,u,i,s,a%2),t(r,n,o,i,u-1,a+1),t(r,n,o,u+1,s,a+1)}}function e(t,n,o,i,s,a){for(;s>i;){if(s-i>600){var u=s-i+1,c=o-i+1,f=Math.log(u),l=.5*Math.exp(2*f/3),h=.5*Math.sqrt(f*l*(u-l)/u)*(c-u/2<0?-1:1);e(t,n,o,Math.max(i,Math.floor(o-c*l/u+h)),Math.min(s,Math.floor(o+(u-c)*l/u+h)),a)}var p=n[2*o+a],d=i,m=s;for(r(t,n,i,o),n[2*s+a]>p&&r(t,n,i,s);d<m;){for(r(t,n,d,m),d++,m--;n[2*d+a]<p;)d++;for(;n[2*m+a]>p;)m--}n[2*i+a]===p?r(t,n,i,m):r(t,n,++m,s),m<=o&&(i=m+1),o<=m&&(s=m-1)}}function r(t,e,r,o){n(t,r,o),n(e,2*r,2*o),n(e,2*r+1,2*o+1)}function n(t,e,r){var n=t[e];t[e]=t[r],t[r]=n}function o(t,e,r,n,o,i,s){for(var a,u,c=[0,t.length-1,0],f=[];c.length;){var l=c.pop(),h=c.pop(),p=c.pop();if(h-p<=s)for(var d=p;d<=h;d++)a=e[2*d],u=e[2*d+1],a>=r&&a<=o&&u>=n&&u<=i&&f.push(t[d]);else{var m=Math.floor((p+h)/2);a=e[2*m],u=e[2*m+1],a>=r&&a<=o&&u>=n&&u<=i&&f.push(t[m]);var g=(l+1)%2;(0===l?r<=a:n<=u)&&(c.push(p),c.push(m-1),c.push(g)),(0===l?o>=a:i>=u)&&(c.push(m+1),c.push(h),c.push(g))}}return f}function i(t,e,r,n,o,i){for(var a=[0,t.length-1,0],u=[],c=o*o;a.length;){var f=a.pop(),l=a.pop(),h=a.pop();if(l-h<=i)for(var p=h;p<=l;p++)s(e[2*p],e[2*p+1],r,n)<=c&&u.push(t[p]);else{var d=Math.floor((h+l)/2),m=e[2*d],g=e[2*d+1];s(m,g,r,n)<=c&&u.push(t[d]);var v=(f+1)%2;(0===f?r-o<=m:n-o<=g)&&(a.push(h),a.push(d-1),a.push(v)),(0===f?r+o>=m:n+o>=g)&&(a.push(d+1),a.push(l),a.push(v))}}return u}function s(t,e,r,n){var o=t-r,i=e-n;return o*o+i*i}var a=function(t){return t[0]},u=function(t){return t[1]},c=function(e,r,n,o,i){void 0===r&&(r=a),void 0===n&&(n=u),void 0===o&&(o=64),void 0===i&&(i=Float64Array),this.nodeSize=o,this.points=e;for(var s=e.length<65536?Uint16Array:Uint32Array,c=this.ids=new s(e.length),f=this.coords=new i(2*e.length),l=0;l<e.length;l++)c[l]=l,f[2*l]=r(e[l]),f[2*l+1]=n(e[l]);t(c,f,o,0,c.length-1,0)};return c.prototype.range=function(t,e,r,n){return o(this.ids,this.coords,t,e,r,n,this.nodeSize)},c.prototype.within=function(t,e,r){return i(this.ids,this.coords,t,e,r,this.nodeSize)},c}()}(Ds);var Fs=Ds.exports;const zs={minZoom:0,maxZoom:16,minPoints:2,radius:40,extent:512,nodeSize:64,log:!1,generateId:!1,reduce:null,map:t=>t},Rs=Math.fround||(qs=new Float32Array(1),t=>(qs[0]=+t,qs[0]));var qs;class Zs{constructor(t){this.options=Hs(Object.create(zs),t),this.trees=new Array(this.options.maxZoom+1)}load(t){const{log:e,minZoom:r,maxZoom:n,nodeSize:o}=this.options;e&&console.time("total time");const i=`prepare ${t.length} points`;e&&console.time(i),this.points=t;let s=[];for(let e=0;e<t.length;e++)t[e].geometry&&s.push(Bs(t[e],e));this.trees[n+1]=new Fs(s,Js,Ks,o,Float32Array),e&&console.timeEnd(i);for(let t=n;t>=r;t--){const r=+Date.now();s=this._cluster(s,t),this.trees[t]=new Fs(s,Js,Ks,o,Float32Array),e&&console.log("z%d: %d clusters in %dms",t,s.length,+Date.now()-r)}return e&&console.timeEnd("total time"),this}getClusters(t,e){let r=((t[0]+180)%360+360)%360-180;const n=Math.max(-90,Math.min(90,t[1]));let o=180===t[2]?180:((t[2]+180)%360+360)%360-180;const i=Math.max(-90,Math.min(90,t[3]));if(t[2]-t[0]>=360)r=-180,o=180;else if(r>o){const t=this.getClusters([r,n,180,i],e),s=this.getClusters([-180,n,o,i],e);return t.concat(s)}const s=this.trees[this._limitZoom(e)],a=s.range(Ws(r),Qs(i),Ws(o),Qs(n)),u=[];for(const t of a){const e=s.points[t];u.push(e.numPoints?Vs(e):this.points[e.index])}return u}getChildren(t){const e=this._getOriginId(t),r=this._getOriginZoom(t),n="No cluster with the specified id.",o=this.trees[r];if(!o)throw new Error(n);const i=o.points[e];if(!i)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=o.within(i.x,i.y,s),u=[];for(const e of a){const r=o.points[e];r.parentId===t&&u.push(r.numPoints?Vs(r):this.points[r.index])}if(0===u.length)throw new Error(n);return u}getLeaves(t,e,r){e=e||10,r=r||0;const n=[];return this._appendLeaves(n,t,e,r,0),n}getTile(t,e,r){const n=this.trees[this._limitZoom(t)],o=Math.pow(2,t),{extent:i,radius:s}=this.options,a=s/i,u=(r-a)/o,c=(r+1+a)/o,f={features:[]};return this._addTileFeatures(n.range((e-a)/o,u,(e+1+a)/o,c),n.points,e,r,o,f),0===e&&this._addTileFeatures(n.range(1-a/o,u,1,c),n.points,o,r,o,f),e===o-1&&this._addTileFeatures(n.range(0,u,a/o,c),n.points,-1,r,o,f),f.features.length?f:null}getClusterExpansionZoom(t){let e=this._getOriginZoom(t)-1;for(;e<=this.options.maxZoom;){const r=this.getChildren(t);if(e++,1!==r.length)break;t=r[0].properties.cluster_id}return e}_appendLeaves(t,e,r,n,o){const i=this.getChildren(e);for(const e of i){const i=e.properties;if(i&&i.cluster?o+i.point_count<=n?o+=i.point_count:o=this._appendLeaves(t,i.cluster_id,r,n,o):o<n?o++:t.push(e),t.length===r)break}return o}_addTileFeatures(t,e,r,n,o,i){for(const s of t){const t=e[s],a=t.numPoints;let u,c,f;if(a)u=Us(t),c=t.x,f=t.y;else{const e=this.points[t.index];u=e.properties,c=Ws(e.geometry.coordinates[0]),f=Qs(e.geometry.coordinates[1])}const l={type:1,geometry:[[Math.round(this.options.extent*(c*o-r)),Math.round(this.options.extent*(f*o-n))]],tags:u};let h;a?h=t.id:this.options.generateId?h=t.index:this.points[t.index].id&&(h=this.points[t.index].id),void 0!==h&&(l.id=h),i.features.push(l)}}_limitZoom(t){return Math.max(this.options.minZoom,Math.min(+t,this.options.maxZoom+1))}_cluster(t,e){const r=[],{radius:n,extent:o,reduce:i,minPoints:s}=this.options,a=n/(o*Math.pow(2,e));for(let n=0;n<t.length;n++){const o=t[n];if(o.zoom<=e)continue;o.zoom=e;const u=this.trees[e+1],c=u.within(o.x,o.y,a),f=o.numPoints||1;let l=f;for(const t of c){const r=u.points[t];r.zoom>e&&(l+=r.numPoints||1)}if(l>f&&l>=s){let t=o.x*f,s=o.y*f,a=i&&f>1?this._map(o,!0):null;const h=(n<<5)+(e+1)+this.points.length;for(const r of c){const n=u.points[r];if(n.zoom<=e)continue;n.zoom=e;const c=n.numPoints||1;t+=n.x*c,s+=n.y*c,n.parentId=h,i&&(a||(a=this._map(o,!0)),i(a,this._map(n)))}o.parentId=h,r.push(Gs(t/l,s/l,h,l,a))}else if(r.push(o),l>1)for(const t of c){const n=u.points[t];n.zoom<=e||(n.zoom=e,r.push(n))}}return r}_getOriginId(t){return t-this.points.length>>5}_getOriginZoom(t){return(t-this.points.length)%32}_map(t,e){if(t.numPoints)return e?Hs({},t.properties):t.properties;const r=this.points[t.index].properties,n=this.options.map(r);return e&&n===r?Hs({},n):n}}function Gs(t,e,r,n,o){return{x:Rs(t),y:Rs(e),zoom:1/0,id:r,parentId:-1,numPoints:n,properties:o}}function Bs(t,e){const[r,n]=t.geometry.coordinates;return{x:Rs(Ws(r)),y:Rs(Qs(n)),zoom:1/0,index:e,parentId:-1}}function Vs(t){return{type:"Feature",id:t.id,properties:Us(t),geometry:{type:"Point",coordinates:[(e=t.x,360*(e-.5)),Xs(t.y)]}};var e}function Us(t){const e=t.numPoints,r=e>=1e4?Math.round(e/1e3)+"k":e>=1e3?Math.round(e/100)/10+"k":e;return Hs(Hs({},t.properties),{cluster:!0,cluster_id:t.id,point_count:e,point_count_abbreviated:r})}function Ws(t){return t/360+.5}function Qs(t){const e=Math.sin(t*Math.PI/180),r=.5-.25*Math.log((1+e)/(1-e))/Math.PI;return r<0?0:r>1?1:r}function Xs(t){const e=(180-360*t)*Math.PI/180;return 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n=t.length,o=0,i=0;i<n;i++)o+=Math.abs((t[i]||0)-(e[i]||0));return r?Math.sqrt(o):o},dist:function(t,e,r){var n=Math.abs(t-e);return r?n:n*n}},os=ns.eudist,is=ns.dist,ss={kmrand:function(t,e){for(var r={},n=[],o=e<<2,i=t.length,s=t[0].length>0;n.length<e&&o-- >0;){var a=t[Math.floor(Math.random()*i)],u=s?a.join("_"):""+a;r[u]||(r[u]=!0,n.push(a))}if(n.length<e)throw new Error("Error initializating clusters");return n},kmpp:function(t,e){var r=t[0].length?os:is,n=[],o=t.length,i=t[0].length>0,s=t[Math.floor(Math.random()*o)];i&&s.join("_");for(n.push(s);n.length<e;){for(var a=[],u=n.length,c=0,f=[],l=0;l<o;l++){for(var h=1/0,p=0;p<u;p++){var d=r(t[l],n[p]);d<=h&&(h=d)}a[l]=h}for(var m=0;m<o;m++)c+=a[m];for(var g=0;g<o;g++)f[g]={i:g,v:t[g],pr:a[g]/c,cs:0};f.sort((function(t,e){return t.pr-e.pr})),f[0].cs=f[0].pr;for(var v=1;v<o;v++)f[v].cs=f[v-1].cs+f[v].pr;for(var y=Math.random(),b=0;b<o-1&&f[b++].cs<y;);n.push(f[b-1].v)}return n}},as=ns.eudist,us=ss.kmrand,cs=ss.kmpp;function fs(t,e,r){r=r||[];for(var n=0;n<t;n++)r[n]=e;return r}var ls=function(t,e,r,n){var o=[],i=[],s=[],a=[],u=!1,c=n||1e4,f=t.length,l=t[0].length,h=l>0,p=[];if(r)o="kmrand"==r?us(t,e):"kmpp"==r?cs(t,e):r;else for(var d={};o.length<e;){var m=Math.floor(Math.random()*f);d[m]||(d[m]=!0,o.push(t[m]))}do{fs(e,0,p);for(var g=0;g<f;g++){for(var v=1/0,y=0,b=0;b<e;b++){(a=h?as(t[g],o[b]):Math.abs(t[g]-o[b]))<=v&&(v=a,y=b)}s[g]=y,p[y]++}for(var _=[],w=(i=[],0);w<e;w++)_[w]=h?fs(l,0,_[w]):0,i[w]=o[w];if(h){for(var k=0;k<e;k++)o[k]=[];for(var x=0;x<f;x++)for(var M=_[s[x]],O=t[x],P=0;P<l;P++)M[P]+=O[P];u=!0;for(var S=0;S<e;S++){for(var E=o[S],C=_[S],j=i[S],L=p[S],A=0;A<l;A++)E[A]=C[A]/L||0;if(u)for(var T=0;T<l;T++)if(j[T]!=E[T]){u=!1;break}}}else{for(var I=0;I<f;I++){_[s[I]]+=t[I]}for(var N=0;N<e;N++)o[N]=_[N]/p[N]||0;u=!0;for(var D=0;D<e;D++)if(i[D]!=o[D]){u=!1;break}}u=u||--c<=0}while(!u);return{it:1e4-c,k:e,idxs:s,centroids:o}};var hs=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.numberOfClusters,s=$o(t,["numberOfClusters"]);return(n=r.call(this,s)).numberOfClusters=o,n}return n(i,[{key:"cluster",value:function(t){var e=t.markers,r=t.map,n=[];return 0===e.length||function(t,e){void 0===e&&(e={});var r=t.features.length;e.numberOfClusters=e.numberOfClusters||Math.round(Math.sqrt(r/2)),e.numberOfClusters>r&&(e.numberOfClusters=r),!0!==e.mutate&&(t=Ji(t));var n=rs(t),o=n.slice(0,e.numberOfClusters),i=ls(n,e.numberOfClusters,o),s={};return i.centroids.forEach((function(t,e){s[e]=t})),function(t,e){if("Feature"===t.type)e(t,0);else if("FeatureCollection"===t.type)for(var r=0;r<t.features.length&&!1!==e(t.features[r],r);r++);}(t,(function(t,e){var r=i.idxs[e];t.properties.cluster=r,t.properties.centroid=s[r]})),t}(Ui(e.map((function(t){return Vi([t.getPosition().lng(),t.getPosition().lat()])}))),{numberOfClusters:this.numberOfClusters instanceof 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Error("coord is required");if(!Array.isArray(t)){if("Feature"===t.type&&null!==t.geometry&&"Point"===t.geometry.type)return t.geometry.coordinates;if("Point"===t.type)return t.coordinates}if(Array.isArray(t)&&t.length>=2&&!Array.isArray(t[0])&&!Array.isArray(t[1]))return t;throw new Error("coord must be GeoJSON Point or an Array of numbers")}function js(t,e,r){void 0===r&&(r={});var n=Cs(t),o=Cs(e),i=Qi(o[1]-n[1]),s=Qi(o[0]-n[0]),a=Qi(n[1]),u=Qi(o[1]),c=Math.pow(Math.sin(i/2),2)+Math.pow(Math.sin(s/2),2)*Math.cos(a)*Math.cos(u);return Wi(2*Math.atan2(Math.sqrt(c),Math.sqrt(1-c)),r.units)}to({target:"Object",stat:!0,forced:Object.assign!==Es},{assign:Es});var Ls={exports:{}},As={exports:{}};!function(t){function e(t,e,r,n){this.dataset=[],this.epsilon=1,this.minPts=2,this.distance=this._euclideanDistance,this.clusters=[],this.noise=[],this._visited=[],this._assigned=[],this._datasetLength=0,this._init(t,e,r,n)}e.prototype.run=function(t,e,r,n){this._init(t,e,r,n);for(var o=0;o<this._datasetLength;o++)if(1!==this._visited[o]){this._visited[o]=1;var i=this._regionQuery(o);if(i.length<this.minPts)this.noise.push(o);else{var s=this.clusters.length;this.clusters.push([]),this._addToCluster(o,s),this._expandCluster(s,i)}}return this.clusters},e.prototype._init=function(t,e,r,n){if(t){if(!(t instanceof Array))throw Error("Dataset must be of type array, "+typeof t+" given");this.dataset=t,this.clusters=[],this.noise=[],this._datasetLength=t.length,this._visited=new Array(this._datasetLength),this._assigned=new Array(this._datasetLength)}e&&(this.epsilon=e),r&&(this.minPts=r),n&&(this.distance=n)},e.prototype._expandCluster=function(t,e){for(var r=0;r<e.length;r++){var n=e[r];if(1!==this._visited[n]){this._visited[n]=1;var o=this._regionQuery(n);o.length>=this.minPts&&(e=this._mergeArrays(e,o))}1!==this._assigned[n]&&this._addToCluster(n,t)}},e.prototype._addToCluster=function(t,e){this.clusters[e].push(t),this._assigned[t]=1},e.prototype._regionQuery=function(t){for(var e=[],r=0;r<this._datasetLength;r++){this.distance(this.dataset[t],this.dataset[r])<this.epsilon&&e.push(r)}return e},e.prototype._mergeArrays=function(t,e){for(var r=e.length,n=0;n<r;n++){var o=e[n];t.indexOf(o)<0&&t.push(o)}return t},e.prototype._euclideanDistance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;)r+=(t[n]-e[n])*(t[n]-e[n]);return Math.sqrt(r)},t.exports&&(t.exports=e)}(As);var Ts={exports:{}};!function(t){function e(t,e,r){this.k=3,this.dataset=[],this.assignments=[],this.centroids=[],this.init(t,e,r)}e.prototype.init=function(t,e,r){this.assignments=[],this.centroids=[],void 0!==t&&(this.dataset=t),void 0!==e&&(this.k=e),void 0!==r&&(this.distance=r)},e.prototype.run=function(t,e){this.init(t,e);for(var r=this.dataset.length,n=0;n<this.k;n++)this.centroids[n]=this.randomCentroid();for(var o=!0;o;){o=this.assign();for(var i=0;i<this.k;i++){for(var s=new Array(f),a=0,u=0;u<f;u++)s[u]=0;for(var c=0;c<r;c++){var f=this.dataset[c].length;if(i===this.assignments[c]){for(u=0;u<f;u++)s[u]+=this.dataset[c][u];a++}}if(a>0){for(u=0;u<f;u++)s[u]/=a;this.centroids[i]=s}else this.centroids[i]=this.randomCentroid(),o=!0}}return this.getClusters()},e.prototype.randomCentroid=function(){var t,e,r=this.dataset.length-1;do{e=Math.round(Math.random()*r),t=this.dataset[e]}while(this.centroids.indexOf(t)>=0);return t},e.prototype.assign=function(){for(var t,e=!1,r=this.dataset.length,n=0;n<r;n++)(t=this.argmin(this.dataset[n],this.centroids,this.distance))!=this.assignments[n]&&(this.assignments[n]=t,e=!0);return e},e.prototype.getClusters=function(){for(var t,e=new Array(this.k),r=0;r<this.assignments.length;r++)void 0===e[t=this.assignments[r]]&&(e[t]=[]),e[t].push(r);return e},e.prototype.argmin=function(t,e,r){for(var n,o=Number.MAX_VALUE,i=0,s=e.length,a=0;a<s;a++)(n=r(t,e[a]))<o&&(o=n,i=a);return i},e.prototype.distance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;){var o=t[n]-e[n];r+=o*o}return Math.sqrt(r)},t.exports&&(t.exports=e)}(Ts);var Is,Ns={exports:{}},Ds={exports:{}};!function(t){function e(t,e,r){this._queue=[],this._priorities=[],this._sorting="desc",this._init(t,e,r)}e.prototype.insert=function(t,e){for(var r=this._queue.length,n=r;n--;){var o=this._priorities[n];"desc"===this._sorting?e>o&&(r=n):e<o&&(r=n)}this._insertAt(t,e,r)},e.prototype.remove=function(t){for(var e=this._queue.length;e--;){if(t===this._queue[e]){this._queue.splice(e,1),this._priorities.splice(e,1);break}}},e.prototype.forEach=function(t){this._queue.forEach(t)},e.prototype.getElements=function(){return this._queue},e.prototype.getElementPriority=function(t){return this._priorities[t]},e.prototype.getPriorities=function(){return this._priorities},e.prototype.getElementsWithPriorities=function(){for(var t=[],e=0,r=this._queue.length;e<r;e++)t.push([this._queue[e],this._priorities[e]]);return t},e.prototype._init=function(t,e,r){if(t&&e){if(this._queue=[],this._priorities=[],t.length!==e.length)throw new Error("Arrays must have the same length");for(var n=0;n<t.length;n++)this.insert(t[n],e[n])}r&&(this._sorting=r)},e.prototype._insertAt=function(t,e,r){this._queue.length===r?(this._queue.push(t),this._priorities.push(e)):(this._queue.splice(r,0,t),this._priorities.splice(r,0,e))},t.exports&&(t.exports=e)}(Ds),function(t){if(t.exports)var e=Ds.exports;function r(t,e,r,n){this.epsilon=1,this.minPts=1,this.distance=this._euclideanDistance,this._reachability=[],this._processed=[],this._coreDistance=0,this._orderedList=[],this._init(t,e,r,n)}r.prototype.run=function(t,r,n,o){this._init(t,r,n,o);for(var i=0,s=this.dataset.length;i<s;i++)if(1!==this._processed[i]){this._processed[i]=1,this.clusters.push([i]);var a=this.clusters.length-1;this._orderedList.push(i);var u=new e(null,null,"asc"),c=this._regionQuery(i);void 0!==this._distanceToCore(i)&&(this._updateQueue(i,c,u),this._expandCluster(a,u))}return this.clusters},r.prototype.getReachabilityPlot=function(){for(var t=[],e=0,r=this._orderedList.length;e<r;e++){var n=this._orderedList[e],o=this._reachability[n];t.push([n,o])}return t},r.prototype._init=function(t,e,r,n){if(t){if(!(t instanceof Array))throw Error("Dataset must be of type array, "+typeof t+" given");this.dataset=t,this.clusters=[],this._reachability=new Array(this.dataset.length),this._processed=new Array(this.dataset.length),this._coreDistance=0,this._orderedList=[]}e&&(this.epsilon=e),r&&(this.minPts=r),n&&(this.distance=n)},r.prototype._updateQueue=function(t,e,r){var n=this;this._coreDistance=this._distanceToCore(t),e.forEach((function(e){if(void 0===n._processed[e]){var o=n.distance(n.dataset[t],n.dataset[e]),i=Math.max(n._coreDistance,o);void 0===n._reachability[e]?(n._reachability[e]=i,r.insert(e,i)):i<n._reachability[e]&&(n._reachability[e]=i,r.remove(e),r.insert(e,i))}}))},r.prototype._expandCluster=function(t,e){for(var r=e.getElements(),n=0,o=r.length;n<o;n++){var i=r[n];if(void 0===this._processed[i]){var s=this._regionQuery(i);this._processed[i]=1,this.clusters[t].push(i),this._orderedList.push(i),void 0!==this._distanceToCore(i)&&(this._updateQueue(i,s,e),this._expandCluster(t,e))}}},r.prototype._distanceToCore=function(t){for(var e=this.epsilon,r=0;r<e;r++){if(this._regionQuery(t,r).length>=this.minPts)return r}},r.prototype._regionQuery=function(t,e){e=e||this.epsilon;for(var r=[],n=0,o=this.dataset.length;n<o;n++)this.distance(this.dataset[t],this.dataset[n])<e&&r.push(n);return r},r.prototype._euclideanDistance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;)r+=(t[n]-e[n])*(t[n]-e[n]);return Math.sqrt(r)},t.exports&&(t.exports=r)}(Ns),(Is=Ls).exports&&(Is.exports={DBSCAN:As.exports,KMEANS:Ts.exports,OPTICS:Ns.exports,PriorityQueue:Ds.exports});var Fs=Ls.exports;var zs={units:"kilometers",mutate:!1,minPoints:1},Rs=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.maxDistance,s=void 0===o?200:o,a=t.minPoints,u=void 0===a?zs.minPoints:a,c=$o(t,["maxDistance","minPoints"]);return(n=r.call(this,c)).maxDistance=s,n.options=Object.assign(Object.assign({},zs),{minPoints:u}),n}return n(i,[{key:"cluster",value:function(t){var e=t.markers,r=t.mapCanvasProjection,n=Ui(e.map((function(t){var e=r.fromLatLngToContainerPixel(t.getPosition());return Vi([e.x,e.y])}))),o=[];return function(t,e,r){void 0===r&&(r={}),!0!==r.mutate&&(t=Ji(t)),r.minPoints=r.minPoints||3;var n=new Fs.DBSCAN,o=n.run(rs(t),Xi(e,r.units),r.minPoints,js),i=-1;return o.forEach((function(e){i++,e.forEach((function(e){var r=t.features[e];r.properties||(r.properties={}),r.properties.cluster=i,r.properties.dbscan="core"}))})),n.noise.forEach((function(e){var r=t.features[e];r.properties||(r.properties={}),r.properties.cluster?r.properties.dbscan="edge":r.properties.dbscan="noise"})),t}(n,this.maxDistance,this.options).features.forEach((function(t,r){o[t.properties.cluster]||(o[t.properties.cluster]=[]),o[t.properties.cluster].push(e[r])})),o.map((function(t){return new yi({markers:t})}))}}]),i}(Pi),qs={exports:{}};!function(t,e){t.exports=function(){function t(r,n,o,i,s,a){if(!(s-i<=o)){var u=i+s>>1;e(r,n,u,i,s,a%2),t(r,n,o,i,u-1,a+1),t(r,n,o,u+1,s,a+1)}}function e(t,n,o,i,s,a){for(;s>i;){if(s-i>600){var u=s-i+1,c=o-i+1,f=Math.log(u),l=.5*Math.exp(2*f/3),h=.5*Math.sqrt(f*l*(u-l)/u)*(c-u/2<0?-1:1);e(t,n,o,Math.max(i,Math.floor(o-c*l/u+h)),Math.min(s,Math.floor(o+(u-c)*l/u+h)),a)}var 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v=(f+1)%2;(0===f?r-o<=m:n-o<=g)&&(a.push(h),a.push(d-1),a.push(v)),(0===f?r+o>=m:n+o>=g)&&(a.push(d+1),a.push(l),a.push(v))}}return u}function s(t,e,r,n){var o=t-r,i=e-n;return o*o+i*i}var a=function(t){return t[0]},u=function(t){return t[1]},c=function(e,r,n,o,i){void 0===r&&(r=a),void 0===n&&(n=u),void 0===o&&(o=64),void 0===i&&(i=Float64Array),this.nodeSize=o,this.points=e;for(var s=e.length<65536?Uint16Array:Uint32Array,c=this.ids=new s(e.length),f=this.coords=new i(2*e.length),l=0;l<e.length;l++)c[l]=l,f[2*l]=r(e[l]),f[2*l+1]=n(e[l]);t(c,f,o,0,c.length-1,0)};return c.prototype.range=function(t,e,r,n){return o(this.ids,this.coords,t,e,r,n,this.nodeSize)},c.prototype.within=function(t,e,r){return i(this.ids,this.coords,t,e,r,this.nodeSize)},c}()}(qs);var Zs=qs.exports;const Gs={minZoom:0,maxZoom:16,minPoints:2,radius:40,extent:512,nodeSize:64,log:!1,generateId:!1,reduce:null,map:t=>t},Bs=Math.fround||(Vs=new Float32Array(1),t=>(Vs[0]=+t,Vs[0]));var Vs;class Us{constructor(t){this.options=Ys(Object.create(Gs),t),this.trees=new Array(this.options.maxZoom+1)}load(t){const{log:e,minZoom:r,maxZoom:n,nodeSize:o}=this.options;e&&console.time("total time");const i=`prepare ${t.length} points`;e&&console.time(i),this.points=t;let s=[];for(let e=0;e<t.length;e++)t[e].geometry&&s.push(Qs(t[e],e));this.trees[n+1]=new Zs(s,ta,ea,o,Float32Array),e&&console.timeEnd(i);for(let t=n;t>=r;t--){const r=+Date.now();s=this._cluster(s,t),this.trees[t]=new Zs(s,ta,ea,o,Float32Array),e&&console.log("z%d: %d clusters in %dms",t,s.length,+Date.now()-r)}return e&&console.timeEnd("total time"),this}getClusters(t,e){let r=((t[0]+180)%360+360)%360-180;const n=Math.max(-90,Math.min(90,t[1]));let o=180===t[2]?180:((t[2]+180)%360+360)%360-180;const i=Math.max(-90,Math.min(90,t[3]));if(t[2]-t[0]>=360)r=-180,o=180;else if(r>o){const t=this.getClusters([r,n,180,i],e),s=this.getClusters([-180,n,o,i],e);return t.concat(s)}const s=this.trees[this._limitZoom(e)],a=s.range(Js(r),Ks(i),Js(o),Ks(n)),u=[];for(const t of a){const e=s.points[t];u.push(e.numPoints?Xs(e):this.points[e.index])}return u}getChildren(t){const e=this._getOriginId(t),r=this._getOriginZoom(t),n="No cluster with the specified id.",o=this.trees[r];if(!o)throw new Error(n);const i=o.points[e];if(!i)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=o.within(i.x,i.y,s),u=[];for(const e of a){const r=o.points[e];r.parentId===t&&u.push(r.numPoints?Xs(r):this.points[r.index])}if(0===u.length)throw new Error(n);return u}getLeaves(t,e,r){e=e||10,r=r||0;const n=[];return this._appendLeaves(n,t,e,r,0),n}getTile(t,e,r){const n=this.trees[this._limitZoom(t)],o=Math.pow(2,t),{extent:i,radius:s}=this.options,a=s/i,u=(r-a)/o,c=(r+1+a)/o,f={features:[]};return this._addTileFeatures(n.range((e-a)/o,u,(e+1+a)/o,c),n.points,e,r,o,f),0===e&&this._addTileFeatures(n.range(1-a/o,u,1,c),n.points,o,r,o,f),e===o-1&&this._addTileFeatures(n.range(0,u,a/o,c),n.points,-1,r,o,f),f.features.length?f:null}getClusterExpansionZoom(t){let e=this._getOriginZoom(t)-1;for(;e<=this.options.maxZoom;){const r=this.getChildren(t);if(e++,1!==r.length)break;t=r[0].properties.cluster_id}return e}_appendLeaves(t,e,r,n,o){const i=this.getChildren(e);for(const e of i){const i=e.properties;if(i&&i.cluster?o+i.point_count<=n?o+=i.point_count:o=this._appendLeaves(t,i.cluster_id,r,n,o):o<n?o++:t.push(e),t.length===r)break}return o}_addTileFeatures(t,e,r,n,o,i){for(const s of t){const t=e[s],a=t.numPoints;let u,c,f;if(a)u=Hs(t),c=t.x,f=t.y;else{const e=this.points[t.index];u=e.properties,c=Js(e.geometry.coordinates[0]),f=Ks(e.geometry.coordinates[1])}const l={type:1,geometry:[[Math.round(this.options.extent*(c*o-r)),Math.round(this.options.extent*(f*o-n))]],tags:u};let h;a?h=t.id:this.options.generateId?h=t.index:this.points[t.index].id&&(h=this.points[t.index].id),void 0!==h&&(l.id=h),i.features.push(l)}}_limitZoom(t){return Math.max(this.options.minZoom,Math.min(+t,this.options.maxZoom+1))}_cluster(t,e){const r=[],{radius:n,extent:o,reduce:i,minPoints:s}=this.options,a=n/(o*Math.pow(2,e));for(let n=0;n<t.length;n++){const o=t[n];if(o.zoom<=e)continue;o.zoom=e;const u=this.trees[e+1],c=u.within(o.x,o.y,a),f=o.numPoints||1;let l=f;for(const t of c){const r=u.points[t];r.zoom>e&&(l+=r.numPoints||1)}if(l>f&&l>=s){let t=o.x*f,s=o.y*f,a=i&&f>1?this._map(o,!0):null;const h=(n<<5)+(e+1)+this.points.length;for(const r of c){const n=u.points[r];if(n.zoom<=e)continue;n.zoom=e;const c=n.numPoints||1;t+=n.x*c,s+=n.y*c,n.parentId=h,i&&(a||(a=this._map(o,!0)),i(a,this._map(n)))}o.parentId=h,r.push(Ws(t/l,s/l,h,l,a))}else if(r.push(o),l>1)for(const t of c){const n=u.points[t];n.zoom<=e||(n.zoom=e,r.push(n))}}return r}_getOriginId(t){return t-this.points.length>>5}_getOriginZoom(t){return(t-this.points.length)%32}_map(t,e){if(t.numPoints)return e?Ys({},t.properties):t.properties;const r=this.points[t.index].properties,n=this.options.map(r);return e&&n===r?Ys({},n):n}}function Ws(t,e,r,n,o){return{x:Bs(t),y:Bs(e),zoom:1/0,id:r,parentId:-1,numPoints:n,properties:o}}function Qs(t,e){const[r,n]=t.geometry.coordinates;return{x:Bs(Js(r)),y:Bs(Ks(n)),zoom:1/0,index:e,parentId:-1}}function Xs(t){return{type:"Feature",id:t.id,properties:Hs(t),geometry:{type:"Point",coordinates:[(e=t.x,360*(e-.5)),$s(t.y)]}};var e}function Hs(t){const e=t.numPoints,r=e>=1e4?Math.round(e/1e3)+"k":e>=1e3?Math.round(e/100)/10+"k":e;return Ys(Ys({},t.properties),{cluster:!0,cluster_id:t.id,point_count:e,point_count_abbreviated:r})}function Js(t){return t/360+.5}function Ks(t){const e=Math.sin(t*Math.PI/180),r=.5-.25*Math.log((1+e)/(1-e))/Math.PI;return r<0?0:r>1?1:r}function $s(t){const e=(180-360*t)*Math.PI/180;return 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Error("coord is required");if(!Array.isArray(t)){if("Feature"===t.type&&null!==t.geometry&&"Point"===t.geometry.type)return t.geometry.coordinates;if("Point"===t.type)return t.coordinates}if(Array.isArray(t)&&t.length>=2&&!Array.isArray(t[0])&&!Array.isArray(t[1]))return t;throw new Error("coord must be GeoJSON Point or an Array of numbers")}function Ps(t,e,r){void 0===r&&(r={});var n=Os(t),o=Os(e),i=Bi(o[1]-n[1]),s=Bi(o[0]-n[0]),a=Bi(n[1]),u=Bi(o[1]),c=Math.pow(Math.sin(i/2),2)+Math.pow(Math.sin(s/2),2)*Math.cos(a)*Math.cos(u);return Gi(2*Math.atan2(Math.sqrt(c),Math.sqrt(1-c)),r.units)}Kn({target:"Object",stat:!0,forced:Object.assign!==Ms},{assign:Ms});var Ss={exports:{}},Es={exports:{}};!function(t){function e(t,e,r,n){this.dataset=[],this.epsilon=1,this.minPts=2,this.distance=this._euclideanDistance,this.clusters=[],this.noise=[],this._visited=[],this._assigned=[],this._datasetLength=0,this._init(t,e,r,n)}e.prototype.run=function(t,e,r,n){this._init(t,e,r,n);for(var o=0;o<this._datasetLength;o++)if(1!==this._visited[o]){this._visited[o]=1;var i=this._regionQuery(o);if(i.length<this.minPts)this.noise.push(o);else{var s=this.clusters.length;this.clusters.push([]),this._addToCluster(o,s),this._expandCluster(s,i)}}return this.clusters},e.prototype._init=function(t,e,r,n){if(t){if(!(t instanceof Array))throw Error("Dataset must be of type array, "+typeof t+" given");this.dataset=t,this.clusters=[],this.noise=[],this._datasetLength=t.length,this._visited=new Array(this._datasetLength),this._assigned=new Array(this._datasetLength)}e&&(this.epsilon=e),r&&(this.minPts=r),n&&(this.distance=n)},e.prototype._expandCluster=function(t,e){for(var r=0;r<e.length;r++){var n=e[r];if(1!==this._visited[n]){this._visited[n]=1;var o=this._regionQuery(n);o.length>=this.minPts&&(e=this._mergeArrays(e,o))}1!==this._assigned[n]&&this._addToCluster(n,t)}},e.prototype._addToCluster=function(t,e){this.clusters[e].push(t),this._assigned[t]=1},e.prototype._regionQuery=function(t){for(var e=[],r=0;r<this._datasetLength;r++){this.distance(this.dataset[t],this.dataset[r])<this.epsilon&&e.push(r)}return e},e.prototype._mergeArrays=function(t,e){for(var r=e.length,n=0;n<r;n++){var o=e[n];t.indexOf(o)<0&&t.push(o)}return t},e.prototype._euclideanDistance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;)r+=(t[n]-e[n])*(t[n]-e[n]);return Math.sqrt(r)},t.exports&&(t.exports=e)}(Es);var Cs={exports:{}};!function(t){function e(t,e,r){this.k=3,this.dataset=[],this.assignments=[],this.centroids=[],this.init(t,e,r)}e.prototype.init=function(t,e,r){this.assignments=[],this.centroids=[],void 0!==t&&(this.dataset=t),void 0!==e&&(this.k=e),void 0!==r&&(this.distance=r)},e.prototype.run=function(t,e){this.init(t,e);for(var r=this.dataset.length,n=0;n<this.k;n++)this.centroids[n]=this.randomCentroid();for(var o=!0;o;){o=this.assign();for(var i=0;i<this.k;i++){for(var s=new Array(f),a=0,u=0;u<f;u++)s[u]=0;for(var c=0;c<r;c++){var f=this.dataset[c].length;if(i===this.assignments[c]){for(u=0;u<f;u++)s[u]+=this.dataset[c][u];a++}}if(a>0){for(u=0;u<f;u++)s[u]/=a;this.centroids[i]=s}else this.centroids[i]=this.randomCentroid(),o=!0}}return this.getClusters()},e.prototype.randomCentroid=function(){var t,e,r=this.dataset.length-1;do{e=Math.round(Math.random()*r),t=this.dataset[e]}while(this.centroids.indexOf(t)>=0);return t},e.prototype.assign=function(){for(var t,e=!1,r=this.dataset.length,n=0;n<r;n++)(t=this.argmin(this.dataset[n],this.centroids,this.distance))!=this.assignments[n]&&(this.assignments[n]=t,e=!0);return e},e.prototype.getClusters=function(){for(var t,e=new Array(this.k),r=0;r<this.assignments.length;r++)void 0===e[t=this.assignments[r]]&&(e[t]=[]),e[t].push(r);return e},e.prototype.argmin=function(t,e,r){for(var n,o=Number.MAX_VALUE,i=0,s=e.length,a=0;a<s;a++)(n=r(t,e[a]))<o&&(o=n,i=a);return i},e.prototype.distance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;){var o=t[n]-e[n];r+=o*o}return Math.sqrt(r)},t.exports&&(t.exports=e)}(Cs);var js={exports:{}},Ls={exports:{}};!function(t){function e(t,e,r){this._queue=[],this._priorities=[],this._sorting="desc",this._init(t,e,r)}e.prototype.insert=function(t,e){for(var r=this._queue.length,n=r;n--;){var o=this._priorities[n];"desc"===this._sorting?e>o&&(r=n):e<o&&(r=n)}this._insertAt(t,e,r)},e.prototype.remove=function(t){for(var e=this._queue.length;e--;){if(t===this._queue[e]){this._queue.splice(e,1),this._priorities.splice(e,1);break}}},e.prototype.forEach=function(t){this._queue.forEach(t)},e.prototype.getElements=function(){return this._queue},e.prototype.getElementPriority=function(t){return this._priorities[t]},e.prototype.getPriorities=function(){return this._priorities},e.prototype.getElementsWithPriorities=function(){for(var t=[],e=0,r=this._queue.length;e<r;e++)t.push([this._queue[e],this._priorities[e]]);return t},e.prototype._init=function(t,e,r){if(t&&e){if(this._queue=[],this._priorities=[],t.length!==e.length)throw new Error("Arrays must have the same length");for(var n=0;n<t.length;n++)this.insert(t[n],e[n])}r&&(this._sorting=r)},e.prototype._insertAt=function(t,e,r){this._queue.length===r?(this._queue.push(t),this._priorities.push(e)):(this._queue.splice(r,0,t),this._priorities.splice(r,0,e))},t.exports&&(t.exports=e)}(Ls),function(t){if(t.exports)var e=Ls.exports;function r(t,e,r,n){this.epsilon=1,this.minPts=1,this.distance=this._euclideanDistance,this._reachability=[],this._processed=[],this._coreDistance=0,this._orderedList=[],this._init(t,e,r,n)}r.prototype.run=function(t,r,n,o){this._init(t,r,n,o);for(var i=0,s=this.dataset.length;i<s;i++)if(1!==this._processed[i]){this._processed[i]=1,this.clusters.push([i]);var a=this.clusters.length-1;this._orderedList.push(i);var u=new e(null,null,"asc"),c=this._regionQuery(i);void 0!==this._distanceToCore(i)&&(this._updateQueue(i,c,u),this._expandCluster(a,u))}return this.clusters},r.prototype.getReachabilityPlot=function(){for(var t=[],e=0,r=this._orderedList.length;e<r;e++){var n=this._orderedList[e],o=this._reachability[n];t.push([n,o])}return t},r.prototype._init=function(t,e,r,n){if(t){if(!(t instanceof Array))throw Error("Dataset must be of type array, "+typeof t+" given");this.dataset=t,this.clusters=[],this._reachability=new Array(this.dataset.length),this._processed=new Array(this.dataset.length),this._coreDistance=0,this._orderedList=[]}e&&(this.epsilon=e),r&&(this.minPts=r),n&&(this.distance=n)},r.prototype._updateQueue=function(t,e,r){var n=this;this._coreDistance=this._distanceToCore(t),e.forEach((function(e){if(void 0===n._processed[e]){var o=n.distance(n.dataset[t],n.dataset[e]),i=Math.max(n._coreDistance,o);void 0===n._reachability[e]?(n._reachability[e]=i,r.insert(e,i)):i<n._reachability[e]&&(n._reachability[e]=i,r.remove(e),r.insert(e,i))}}))},r.prototype._expandCluster=function(t,e){for(var r=e.getElements(),n=0,o=r.length;n<o;n++){var i=r[n];if(void 0===this._processed[i]){var s=this._regionQuery(i);this._processed[i]=1,this.clusters[t].push(i),this._orderedList.push(i),void 0!==this._distanceToCore(i)&&(this._updateQueue(i,s,e),this._expandCluster(t,e))}}},r.prototype._distanceToCore=function(t){for(var e=this.epsilon,r=0;r<e;r++){if(this._regionQuery(t,r).length>=this.minPts)return r}},r.prototype._regionQuery=function(t,e){e=e||this.epsilon;for(var r=[],n=0,o=this.dataset.length;n<o;n++)this.distance(this.dataset[t],this.dataset[n])<e&&r.push(n);return r},r.prototype._euclideanDistance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;)r+=(t[n]-e[n])*(t[n]-e[n]);return Math.sqrt(r)},t.exports&&(t.exports=r)}(js),function(t){t.exports&&(t.exports={DBSCAN:Es.exports,KMEANS:Cs.exports,OPTICS:js.exports,PriorityQueue:Ls.exports})}(Ss);var As=Ss.exports;var Ts={units:"kilometers",mutate:!1,minPoints:1},Is=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.maxDistance,s=void 0===o?200:o,a=t.minPoints,u=void 0===a?Ts.minPoints:a,c=Xo(t,["maxDistance","minPoints"]);return(n=r.call(this,c)).maxDistance=s,n.options=Object.assign(Object.assign({},Ts),{minPoints:u}),n}return n(i,[{key:"cluster",value:function(t){var e=t.markers,r=t.mapCanvasProjection,n=Zi(e.map((function(t){var e=r.fromLatLngToContainerPixel(t.getPosition());return qi([e.x,e.y])}))),o=[];return function(t,e,r){void 0===r&&(r={}),!0!==r.mutate&&(t=Wi(t)),r.minPoints=r.minPoints||3;var n=new As.DBSCAN,o=n.run($i(t),Vi(e,r.units),r.minPoints,Ps),i=-1;return o.forEach((function(e){i++,e.forEach((function(e){var r=t.features[e];r.properties||(r.properties={}),r.properties.cluster=i,r.properties.dbscan="core"}))})),n.noise.forEach((function(e){var r=t.features[e];r.properties||(r.properties={}),r.properties.cluster?r.properties.dbscan="edge":r.properties.dbscan="noise"})),t}(n,this.maxDistance,this.options).features.forEach((function(t,r){o[t.properties.cluster]||(o[t.properties.cluster]=[]),o[t.properties.cluster].push(e[r])})),o.map((function(t){return new di({markers:t})}))}}]),i}(xi),Ns={exports:{}};!function(t,e){t.exports=function(){function t(r,n,o,i,s,a){if(!(s-i<=o)){var u=i+s>>1;e(r,n,u,i,s,a%2),t(r,n,o,i,u-1,a+1),t(r,n,o,u+1,s,a+1)}}function e(t,n,o,i,s,a){for(;s>i;){if(s-i>600){var u=s-i+1,c=o-i+1,f=Math.log(u),l=.5*Math.exp(2*f/3),h=.5*Math.sqrt(f*l*(u-l)/u)*(c-u/2<0?-1:1);e(t,n,o,Math.max(i,Math.floor(o-c*l/u+h)),Math.min(s,Math.floor(o+(u-c)*l/u+h)),a)}var p=n[2*o+a],d=i,m=s;for(r(t,n,i,o),n[2*s+a]>p&&r(t,n,i,s);d<m;){for(r(t,n,d,m),d++,m--;n[2*d+a]<p;)d++;for(;n[2*m+a]>p;)m--}n[2*i+a]===p?r(t,n,i,m):r(t,n,++m,s),m<=o&&(i=m+1),o<=m&&(s=m-1)}}function r(t,e,r,o){n(t,r,o),n(e,2*r,2*o),n(e,2*r+1,2*o+1)}function n(t,e,r){var n=t[e];t[e]=t[r],t[r]=n}function o(t,e,r,n,o,i,s){for(var a,u,c=[0,t.length-1,0],f=[];c.length;){var l=c.pop(),h=c.pop(),p=c.pop();if(h-p<=s)for(var d=p;d<=h;d++)a=e[2*d],u=e[2*d+1],a>=r&&a<=o&&u>=n&&u<=i&&f.push(t[d]);else{var m=Math.floor((p+h)/2);a=e[2*m],u=e[2*m+1],a>=r&&a<=o&&u>=n&&u<=i&&f.push(t[m]);var g=(l+1)%2;(0===l?r<=a:n<=u)&&(c.push(p),c.push(m-1),c.push(g)),(0===l?o>=a:i>=u)&&(c.push(m+1),c.push(h),c.push(g))}}return f}function i(t,e,r,n,o,i){for(var a=[0,t.length-1,0],u=[],c=o*o;a.length;){var f=a.pop(),l=a.pop(),h=a.pop();if(l-h<=i)for(var p=h;p<=l;p++)s(e[2*p],e[2*p+1],r,n)<=c&&u.push(t[p]);else{var d=Math.floor((h+l)/2),m=e[2*d],g=e[2*d+1];s(m,g,r,n)<=c&&u.push(t[d]);var v=(f+1)%2;(0===f?r-o<=m:n-o<=g)&&(a.push(h),a.push(d-1),a.push(v)),(0===f?r+o>=m:n+o>=g)&&(a.push(d+1),a.push(l),a.push(v))}}return u}function s(t,e,r,n){var o=t-r,i=e-n;return o*o+i*i}var a=function(t){return t[0]},u=function(t){return t[1]},c=function(e,r,n,o,i){void 0===r&&(r=a),void 0===n&&(n=u),void 0===o&&(o=64),void 0===i&&(i=Float64Array),this.nodeSize=o,this.points=e;for(var s=e.length<65536?Uint16Array:Uint32Array,c=this.ids=new s(e.length),f=this.coords=new i(2*e.length),l=0;l<e.length;l++)c[l]=l,f[2*l]=r(e[l]),f[2*l+1]=n(e[l]);t(c,f,o,0,c.length-1,0)};return c.prototype.range=function(t,e,r,n){return o(this.ids,this.coords,t,e,r,n,this.nodeSize)},c.prototype.within=function(t,e,r){return i(this.ids,this.coords,t,e,r,this.nodeSize)},c}()}(Ns);var Ds=Ns.exports;const Fs={minZoom:0,maxZoom:16,minPoints:2,radius:40,extent:512,nodeSize:64,log:!1,generateId:!1,reduce:null,map:t=>t},zs=Math.fround||(Rs=new Float32Array(1),t=>(Rs[0]=+t,Rs[0]));var Rs;class qs{constructor(t){this.options=Xs(Object.create(Fs),t),this.trees=new Array(this.options.maxZoom+1)}load(t){const{log:e,minZoom:r,maxZoom:n,nodeSize:o}=this.options;e&&console.time("total time");const i=`prepare ${t.length} points`;e&&console.time(i),this.points=t;let s=[];for(let e=0;e<t.length;e++)t[e].geometry&&s.push(Gs(t[e],e));this.trees[n+1]=new Ds(s,Hs,Js,o,Float32Array),e&&console.timeEnd(i);for(let t=n;t>=r;t--){const r=+Date.now();s=this._cluster(s,t),this.trees[t]=new Ds(s,Hs,Js,o,Float32Array),e&&console.log("z%d: %d clusters in %dms",t,s.length,+Date.now()-r)}return e&&console.timeEnd("total time"),this}getClusters(t,e){let r=((t[0]+180)%360+360)%360-180;const n=Math.max(-90,Math.min(90,t[1]));let o=180===t[2]?180:((t[2]+180)%360+360)%360-180;const i=Math.max(-90,Math.min(90,t[3]));if(t[2]-t[0]>=360)r=-180,o=180;else if(r>o){const t=this.getClusters([r,n,180,i],e),s=this.getClusters([-180,n,o,i],e);return t.concat(s)}const s=this.trees[this._limitZoom(e)],a=s.range(Us(r),Ws(i),Us(o),Ws(n)),u=[];for(const t of a){const e=s.points[t];u.push(e.numPoints?Bs(e):this.points[e.index])}return u}getChildren(t){const e=this._getOriginId(t),r=this._getOriginZoom(t),n="No cluster with the specified id.",o=this.trees[r];if(!o)throw new Error(n);const i=o.points[e];if(!i)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=o.within(i.x,i.y,s),u=[];for(const e of a){const r=o.points[e];r.parentId===t&&u.push(r.numPoints?Bs(r):this.points[r.index])}if(0===u.length)throw new Error(n);return u}getLeaves(t,e,r){e=e||10,r=r||0;const n=[];return this._appendLeaves(n,t,e,r,0),n}getTile(t,e,r){const n=this.trees[this._limitZoom(t)],o=Math.pow(2,t),{extent:i,radius:s}=this.options,a=s/i,u=(r-a)/o,c=(r+1+a)/o,f={features:[]};return this._addTileFeatures(n.range((e-a)/o,u,(e+1+a)/o,c),n.points,e,r,o,f),0===e&&this._addTileFeatures(n.range(1-a/o,u,1,c),n.points,o,r,o,f),e===o-1&&this._addTileFeatures(n.range(0,u,a/o,c),n.points,-1,r,o,f),f.features.length?f:null}getClusterExpansionZoom(t){let e=this._getOriginZoom(t)-1;for(;e<=this.options.maxZoom;){const r=this.getChildren(t);if(e++,1!==r.length)break;t=r[0].properties.cluster_id}return e}_appendLeaves(t,e,r,n,o){const i=this.getChildren(e);for(const e of i){const i=e.properties;if(i&&i.cluster?o+i.point_count<=n?o+=i.point_count:o=this._appendLeaves(t,i.cluster_id,r,n,o):o<n?o++:t.push(e),t.length===r)break}return o}_addTileFeatures(t,e,r,n,o,i){for(const s of t){const t=e[s],a=t.numPoints;let u,c,f;if(a)u=Vs(t),c=t.x,f=t.y;else{const e=this.points[t.index];u=e.properties,c=Us(e.geometry.coordinates[0]),f=Ws(e.geometry.coordinates[1])}const l={type:1,geometry:[[Math.round(this.options.extent*(c*o-r)),Math.round(this.options.extent*(f*o-n))]],tags:u};let h;a?h=t.id:this.options.generateId?h=t.index:this.points[t.index].id&&(h=this.points[t.index].id),void 0!==h&&(l.id=h),i.features.push(l)}}_limitZoom(t){return Math.max(this.options.minZoom,Math.min(+t,this.options.maxZoom+1))}_cluster(t,e){const r=[],{radius:n,extent:o,reduce:i,minPoints:s}=this.options,a=n/(o*Math.pow(2,e));for(let n=0;n<t.length;n++){const o=t[n];if(o.zoom<=e)continue;o.zoom=e;const u=this.trees[e+1],c=u.within(o.x,o.y,a),f=o.numPoints||1;let l=f;for(const t of c){const r=u.points[t];r.zoom>e&&(l+=r.numPoints||1)}if(l>f&&l>=s){let t=o.x*f,s=o.y*f,a=i&&f>1?this._map(o,!0):null;const h=(n<<5)+(e+1)+this.points.length;for(const r of c){const n=u.points[r];if(n.zoom<=e)continue;n.zoom=e;const c=n.numPoints||1;t+=n.x*c,s+=n.y*c,n.parentId=h,i&&(a||(a=this._map(o,!0)),i(a,this._map(n)))}o.parentId=h,r.push(Zs(t/l,s/l,h,l,a))}else if(r.push(o),l>1)for(const t of c){const n=u.points[t];n.zoom<=e||(n.zoom=e,r.push(n))}}return r}_getOriginId(t){return t-this.points.length>>5}_getOriginZoom(t){return(t-this.points.length)%32}_map(t,e){if(t.numPoints)return e?Xs({},t.properties):t.properties;const r=this.points[t.index].properties,n=this.options.map(r);return e&&n===r?Xs({},n):n}}function Zs(t,e,r,n,o){return{x:zs(t),y:zs(e),zoom:1/0,id:r,parentId:-1,numPoints:n,properties:o}}function Gs(t,e){const[r,n]=t.geometry.coordinates;return{x:zs(Us(r)),y:zs(Ws(n)),zoom:1/0,index:e,parentId:-1}}function Bs(t){return{type:"Feature",id:t.id,properties:Vs(t),geometry:{type:"Point",coordinates:[(e=t.x,360*(e-.5)),Qs(t.y)]}};var e}function Vs(t){const e=t.numPoints,r=e>=1e4?Math.round(e/1e3)+"k":e>=1e3?Math.round(e/100)/10+"k":e;return Xs(Xs({},t.properties),{cluster:!0,cluster_id:t.id,point_count:e,point_count_abbreviated:r})}function Us(t){return t/360+.5}function Ws(t){const e=Math.sin(t*Math.PI/180),r=.5-.25*Math.log((1+e)/(1-e))/Math.PI;return r<0?0:r>1?1:r}function Qs(t){const e=(180-360*t)*Math.PI/180;return 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r=this.markers.indexOf(t);return-1!==r&&(t.setMap(null),this.markers.splice(r,1),e||this.render(),!0)}},{key:"removeMarkers",value:function(t,e){var r=this,n=!1;return t.forEach((function(t){n=r.removeMarker(t,!0)||n})),n&&!e&&this.render(),n}},{key:"clearMarkers",value:function(t){this.markers.length=0,t||this.render()}},{key:"render",value:function(){var e=this.getMap();if(e instanceof google.maps.Map&&this.getProjection()){google.maps.event.trigger(this,t.MarkerClustererEvents.CLUSTERING_BEGIN,this);var r=this.algorithm.calculate({markers:this.markers,map:e,mapCanvasProjection:this.getProjection()}),n=r.clusters,o=r.changed;(o||null==o)&&(this.reset(),this.clusters=n,this.renderClusters()),google.maps.event.trigger(this,t.MarkerClustererEvents.CLUSTERING_END,this)}}},{key:"onAdd",value:function(){this.idleListener=this.getMap().addListener("idle",this.render.bind(this)),this.render()}},{key:"onRemove",value:function(){google.maps.event.removeListener(this.idleListener),this.reset()}},{key:"reset",value:function(){this.markers.forEach((function(t){return t.setMap(null)})),this.clusters.forEach((function(t){return t.delete()})),this.clusters=[]}},{key:"renderClusters",value:function(){var e=this,r=new 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Hi(t){return!isNaN(t)&&null!==t&&!Array.isArray(t)}function Ji(t){if(!t)throw new Error("geojson is required");switch(t.type){case"Feature":return Ki(t);case"FeatureCollection":return function(t){var e={type:"FeatureCollection"};return Object.keys(t).forEach((function(r){switch(r){case"type":case"features":return;default:e[r]=t[r]}})),e.features=t.features.map((function(t){return Ki(t)})),e}(t);case"Point":case"LineString":case"Polygon":case"MultiPoint":case"MultiLineString":case"MultiPolygon":case"GeometryCollection":return Yi(t);default:throw new Error("unknown GeoJSON type")}}function Ki(t){var e={type:"Feature"};return Object.keys(t).forEach((function(r){switch(r){case"type":case"properties":case"geometry":return;default:e[r]=t[r]}})),e.properties=$i(t.properties),e.geometry=Yi(t.geometry),e}function $i(t){var e={};return t?(Object.keys(t).forEach((function(r){var n=t[r];"object"==typeof n?null===n?e[r]=null:Array.isArray(n)?e[r]=n.map((function(t){return 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n=t.length,o=0,i=0;i<n;i++)o+=Math.abs((t[i]||0)-(e[i]||0));return r?Math.sqrt(o):o},dist:function(t,e,r){var n=Math.abs(t-e);return r?n:n*n}},os=ns.eudist,is=ns.dist,ss={kmrand:function(t,e){for(var r={},n=[],o=e<<2,i=t.length,s=t[0].length>0;n.length<e&&o-- >0;){var a=t[Math.floor(Math.random()*i)],u=s?a.join("_"):""+a;r[u]||(r[u]=!0,n.push(a))}if(n.length<e)throw new Error("Error initializating clusters");return n},kmpp:function(t,e){var r=t[0].length?os:is,n=[],o=t.length,i=t[0].length>0,s=t[Math.floor(Math.random()*o)];i&&s.join("_");for(n.push(s);n.length<e;){for(var a=[],u=n.length,c=0,f=[],l=0;l<o;l++){for(var h=1/0,p=0;p<u;p++){var d=r(t[l],n[p]);d<=h&&(h=d)}a[l]=h}for(var m=0;m<o;m++)c+=a[m];for(var g=0;g<o;g++)f[g]={i:g,v:t[g],pr:a[g]/c,cs:0};f.sort((function(t,e){return t.pr-e.pr})),f[0].cs=f[0].pr;for(var v=1;v<o;v++)f[v].cs=f[v-1].cs+f[v].pr;for(var y=Math.random(),b=0;b<o-1&&f[b++].cs<y;);n.push(f[b-1].v)}return n}},as=ns.eudist,us=ss.kmrand,cs=ss.kmpp;function fs(t,e,r){r=r||[];for(var n=0;n<t;n++)r[n]=e;return r}var ls=function(t,e,r,n){var o=[],i=[],s=[],a=[],u=!1,c=n||1e4,f=t.length,l=t[0].length,h=l>0,p=[];if(r)o="kmrand"==r?us(t,e):"kmpp"==r?cs(t,e):r;else for(var d={};o.length<e;){var m=Math.floor(Math.random()*f);d[m]||(d[m]=!0,o.push(t[m]))}do{fs(e,0,p);for(var g=0;g<f;g++){for(var v=1/0,y=0,b=0;b<e;b++){(a=h?as(t[g],o[b]):Math.abs(t[g]-o[b]))<=v&&(v=a,y=b)}s[g]=y,p[y]++}for(var _=[],w=(i=[],0);w<e;w++)_[w]=h?fs(l,0,_[w]):0,i[w]=o[w];if(h){for(var x=0;x<e;x++)o[x]=[];for(var k=0;k<f;k++)for(var M=_[s[k]],O=t[k],P=0;P<l;P++)M[P]+=O[P];u=!0;for(var S=0;S<e;S++){for(var E=o[S],C=_[S],j=i[S],L=p[S],A=0;A<l;A++)E[A]=C[A]/L||0;if(u)for(var T=0;T<l;T++)if(j[T]!=E[T]){u=!1;break}}}else{for(var I=0;I<f;I++){_[s[I]]+=t[I]}for(var N=0;N<e;N++)o[N]=_[N]/p[N]||0;u=!0;for(var D=0;D<e;D++)if(i[D]!=o[D]){u=!1;break}}u=u||--c<=0}while(!u);return{it:1e4-c,k:e,idxs:s,centroids:o}};var hs=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.numberOfClusters,s=$o(t,["numberOfClusters"]);return(n=r.call(this,s)).numberOfClusters=o,n}return n(i,[{key:"cluster",value:function(t){var e=t.markers,r=t.map,n=[];return 0===e.length||function(t,e){void 0===e&&(e={});var r=t.features.length;e.numberOfClusters=e.numberOfClusters||Math.round(Math.sqrt(r/2)),e.numberOfClusters>r&&(e.numberOfClusters=r),!0!==e.mutate&&(t=Ji(t));var n=rs(t),o=n.slice(0,e.numberOfClusters),i=ls(n,e.numberOfClusters,o),s={};return i.centroids.forEach((function(t,e){s[e]=t})),function(t,e){if("Feature"===t.type)e(t,0);else if("FeatureCollection"===t.type)for(var r=0;r<t.features.length&&!1!==e(t.features[r],r);r++);}(t,(function(t,e){var r=i.idxs[e];t.properties.cluster=r,t.properties.centroid=s[r]})),t}(Ui(e.map((function(t){return Vi([t.getPosition().lng(),t.getPosition().lat()])}))),{numberOfClusters:this.numberOfClusters instanceof 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o=0;o<this._datasetLength;o++)if(1!==this._visited[o]){this._visited[o]=1;var i=this._regionQuery(o);if(i.length<this.minPts)this.noise.push(o);else{var s=this.clusters.length;this.clusters.push([]),this._addToCluster(o,s),this._expandCluster(s,i)}}return this.clusters},e.prototype._init=function(t,e,r,n){if(t){if(!(t instanceof Array))throw Error("Dataset must be of type array, "+typeof t+" given");this.dataset=t,this.clusters=[],this.noise=[],this._datasetLength=t.length,this._visited=new Array(this._datasetLength),this._assigned=new Array(this._datasetLength)}e&&(this.epsilon=e),r&&(this.minPts=r),n&&(this.distance=n)},e.prototype._expandCluster=function(t,e){for(var r=0;r<e.length;r++){var n=e[r];if(1!==this._visited[n]){this._visited[n]=1;var o=this._regionQuery(n);o.length>=this.minPts&&(e=this._mergeArrays(e,o))}1!==this._assigned[n]&&this._addToCluster(n,t)}},e.prototype._addToCluster=function(t,e){this.clusters[e].push(t),this._assigned[t]=1},e.prototype._regionQuery=function(t){for(var e=[],r=0;r<this._datasetLength;r++){this.distance(this.dataset[t],this.dataset[r])<this.epsilon&&e.push(r)}return e},e.prototype._mergeArrays=function(t,e){for(var r=e.length,n=0;n<r;n++){var o=e[n];t.indexOf(o)<0&&t.push(o)}return t},e.prototype._euclideanDistance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;)r+=(t[n]-e[n])*(t[n]-e[n]);return Math.sqrt(r)},t.exports&&(t.exports=e)}(As);var Ts={exports:{}};!function(t){function e(t,e,r){this.k=3,this.dataset=[],this.assignments=[],this.centroids=[],this.init(t,e,r)}e.prototype.init=function(t,e,r){this.assignments=[],this.centroids=[],void 0!==t&&(this.dataset=t),void 0!==e&&(this.k=e),void 0!==r&&(this.distance=r)},e.prototype.run=function(t,e){this.init(t,e);for(var r=this.dataset.length,n=0;n<this.k;n++)this.centroids[n]=this.randomCentroid();for(var o=!0;o;){o=this.assign();for(var i=0;i<this.k;i++){for(var s=new Array(f),a=0,u=0;u<f;u++)s[u]=0;for(var c=0;c<r;c++){var f=this.dataset[c].length;if(i===this.assignments[c]){for(u=0;u<f;u++)s[u]+=this.dataset[c][u];a++}}if(a>0){for(u=0;u<f;u++)s[u]/=a;this.centroids[i]=s}else this.centroids[i]=this.randomCentroid(),o=!0}}return this.getClusters()},e.prototype.randomCentroid=function(){var t,e,r=this.dataset.length-1;do{e=Math.round(Math.random()*r),t=this.dataset[e]}while(this.centroids.indexOf(t)>=0);return t},e.prototype.assign=function(){for(var t,e=!1,r=this.dataset.length,n=0;n<r;n++)(t=this.argmin(this.dataset[n],this.centroids,this.distance))!=this.assignments[n]&&(this.assignments[n]=t,e=!0);return e},e.prototype.getClusters=function(){for(var t,e=new Array(this.k),r=0;r<this.assignments.length;r++)void 0===e[t=this.assignments[r]]&&(e[t]=[]),e[t].push(r);return e},e.prototype.argmin=function(t,e,r){for(var n,o=Number.MAX_VALUE,i=0,s=e.length,a=0;a<s;a++)(n=r(t,e[a]))<o&&(o=n,i=a);return i},e.prototype.distance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;){var o=t[n]-e[n];r+=o*o}return Math.sqrt(r)},t.exports&&(t.exports=e)}(Ts);var Is={exports:{}},Ns={exports:{}};!function(t){function e(t,e,r){this._queue=[],this._priorities=[],this._sorting="desc",this._init(t,e,r)}e.prototype.insert=function(t,e){for(var r=this._queue.length,n=r;n--;){var o=this._priorities[n];"desc"===this._sorting?e>o&&(r=n):e<o&&(r=n)}this._insertAt(t,e,r)},e.prototype.remove=function(t){for(var e=this._queue.length;e--;){if(t===this._queue[e]){this._queue.splice(e,1),this._priorities.splice(e,1);break}}},e.prototype.forEach=function(t){this._queue.forEach(t)},e.prototype.getElements=function(){return this._queue},e.prototype.getElementPriority=function(t){return this._priorities[t]},e.prototype.getPriorities=function(){return this._priorities},e.prototype.getElementsWithPriorities=function(){for(var t=[],e=0,r=this._queue.length;e<r;e++)t.push([this._queue[e],this._priorities[e]]);return t},e.prototype._init=function(t,e,r){if(t&&e){if(this._queue=[],this._priorities=[],t.length!==e.length)throw new Error("Arrays must have the same length");for(var n=0;n<t.length;n++)this.insert(t[n],e[n])}r&&(this._sorting=r)},e.prototype._insertAt=function(t,e,r){this._queue.length===r?(this._queue.push(t),this._priorities.push(e)):(this._queue.splice(r,0,t),this._priorities.splice(r,0,e))},t.exports&&(t.exports=e)}(Ns),function(t){if(t.exports)var e=Ns.exports;function r(t,e,r,n){this.epsilon=1,this.minPts=1,this.distance=this._euclideanDistance,this._reachability=[],this._processed=[],this._coreDistance=0,this._orderedList=[],this._init(t,e,r,n)}r.prototype.run=function(t,r,n,o){this._init(t,r,n,o);for(var i=0,s=this.dataset.length;i<s;i++)if(1!==this._processed[i]){this._processed[i]=1,this.clusters.push([i]);var a=this.clusters.length-1;this._orderedList.push(i);var u=new e(null,null,"asc"),c=this._regionQuery(i);void 0!==this._distanceToCore(i)&&(this._updateQueue(i,c,u),this._expandCluster(a,u))}return this.clusters},r.prototype.getReachabilityPlot=function(){for(var t=[],e=0,r=this._orderedList.length;e<r;e++){var n=this._orderedList[e],o=this._reachability[n];t.push([n,o])}return t},r.prototype._init=function(t,e,r,n){if(t){if(!(t instanceof Array))throw Error("Dataset must be of type array, "+typeof t+" given");this.dataset=t,this.clusters=[],this._reachability=new Array(this.dataset.length),this._processed=new Array(this.dataset.length),this._coreDistance=0,this._orderedList=[]}e&&(this.epsilon=e),r&&(this.minPts=r),n&&(this.distance=n)},r.prototype._updateQueue=function(t,e,r){var n=this;this._coreDistance=this._distanceToCore(t),e.forEach((function(e){if(void 0===n._processed[e]){var o=n.distance(n.dataset[t],n.dataset[e]),i=Math.max(n._coreDistance,o);void 0===n._reachability[e]?(n._reachability[e]=i,r.insert(e,i)):i<n._reachability[e]&&(n._reachability[e]=i,r.remove(e),r.insert(e,i))}}))},r.prototype._expandCluster=function(t,e){for(var r=e.getElements(),n=0,o=r.length;n<o;n++){var i=r[n];if(void 0===this._processed[i]){var s=this._regionQuery(i);this._processed[i]=1,this.clusters[t].push(i),this._orderedList.push(i),void 0!==this._distanceToCore(i)&&(this._updateQueue(i,s,e),this._expandCluster(t,e))}}},r.prototype._distanceToCore=function(t){for(var e=this.epsilon,r=0;r<e;r++){if(this._regionQuery(t,r).length>=this.minPts)return r}},r.prototype._regionQuery=function(t,e){e=e||this.epsilon;for(var r=[],n=0,o=this.dataset.length;n<o;n++)this.distance(this.dataset[t],this.dataset[n])<e&&r.push(n);return r},r.prototype._euclideanDistance=function(t,e){for(var r=0,n=Math.min(t.length,e.length);n--;)r+=(t[n]-e[n])*(t[n]-e[n]);return Math.sqrt(r)},t.exports&&(t.exports=r)}(Is),function(t){t.exports&&(t.exports={DBSCAN:As.exports,KMEANS:Ts.exports,OPTICS:Is.exports,PriorityQueue:Ns.exports})}(Ls);var Ds=Ls.exports;var Fs={units:"kilometers",mutate:!1,minPoints:1},zs=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.maxDistance,s=void 0===o?200:o,a=t.minPoints,u=void 0===a?Fs.minPoints:a,c=$o(t,["maxDistance","minPoints"]);return(n=r.call(this,c)).maxDistance=s,n.options=Object.assign(Object.assign({},Fs),{minPoints:u}),n}return n(i,[{key:"cluster",value:function(t){var e=t.markers,r=t.mapCanvasProjection,n=Ui(e.map((function(t){var e=r.fromLatLngToContainerPixel(t.getPosition());return Vi([e.x,e.y])}))),o=[];return function(t,e,r){void 0===r&&(r={}),!0!==r.mutate&&(t=Ji(t)),r.minPoints=r.minPoints||3;var n=new Ds.DBSCAN,o=n.run(rs(t),Xi(e,r.units),r.minPoints,js),i=-1;return o.forEach((function(e){i++,e.forEach((function(e){var r=t.features[e];r.properties||(r.properties={}),r.properties.cluster=i,r.properties.dbscan="core"}))})),n.noise.forEach((function(e){var r=t.features[e];r.properties||(r.properties={}),r.properties.cluster?r.properties.dbscan="edge":r.properties.dbscan="noise"})),t}(n,this.maxDistance,this.options).features.forEach((function(t,r){o[t.properties.cluster]||(o[t.properties.cluster]=[]),o[t.properties.cluster].push(e[r])})),o.map((function(t){return new yi({markers:t})}))}}]),i}(Pi),Rs={exports:{}};!function(t,e){t.exports=function(){function t(r,n,o,i,s,a){if(!(s-i<=o)){var u=i+s>>1;e(r,n,u,i,s,a%2),t(r,n,o,i,u-1,a+1),t(r,n,o,u+1,s,a+1)}}function e(t,n,o,i,s,a){for(;s>i;){if(s-i>600){var u=s-i+1,c=o-i+1,f=Math.log(u),l=.5*Math.exp(2*f/3),h=.5*Math.sqrt(f*l*(u-l)/u)*(c-u/2<0?-1:1);e(t,n,o,Math.max(i,Math.floor(o-c*l/u+h)),Math.min(s,Math.floor(o+(u-c)*l/u+h)),a)}var p=n[2*o+a],d=i,m=s;for(r(t,n,i,o),n[2*s+a]>p&&r(t,n,i,s);d<m;){for(r(t,n,d,m),d++,m--;n[2*d+a]<p;)d++;for(;n[2*m+a]>p;)m--}n[2*i+a]===p?r(t,n,i,m):r(t,n,++m,s),m<=o&&(i=m+1),o<=m&&(s=m-1)}}function r(t,e,r,o){n(t,r,o),n(e,2*r,2*o),n(e,2*r+1,2*o+1)}function n(t,e,r){var n=t[e];t[e]=t[r],t[r]=n}function o(t,e,r,n,o,i,s){for(var a,u,c=[0,t.length-1,0],f=[];c.length;){var l=c.pop(),h=c.pop(),p=c.pop();if(h-p<=s)for(var d=p;d<=h;d++)a=e[2*d],u=e[2*d+1],a>=r&&a<=o&&u>=n&&u<=i&&f.push(t[d]);else{var m=Math.floor((p+h)/2);a=e[2*m],u=e[2*m+1],a>=r&&a<=o&&u>=n&&u<=i&&f.push(t[m]);var g=(l+1)%2;(0===l?r<=a:n<=u)&&(c.push(p),c.push(m-1),c.push(g)),(0===l?o>=a:i>=u)&&(c.push(m+1),c.push(h),c.push(g))}}return f}function i(t,e,r,n,o,i){for(var a=[0,t.length-1,0],u=[],c=o*o;a.length;){var f=a.pop(),l=a.pop(),h=a.pop();if(l-h<=i)for(var p=h;p<=l;p++)s(e[2*p],e[2*p+1],r,n)<=c&&u.push(t[p]);else{var d=Math.floor((h+l)/2),m=e[2*d],g=e[2*d+1];s(m,g,r,n)<=c&&u.push(t[d]);var v=(f+1)%2;(0===f?r-o<=m:n-o<=g)&&(a.push(h),a.push(d-1),a.push(v)),(0===f?r+o>=m:n+o>=g)&&(a.push(d+1),a.push(l),a.push(v))}}return u}function s(t,e,r,n){var o=t-r,i=e-n;return o*o+i*i}var a=function(t){return t[0]},u=function(t){return t[1]},c=function(e,r,n,o,i){void 0===r&&(r=a),void 0===n&&(n=u),void 0===o&&(o=64),void 0===i&&(i=Float64Array),this.nodeSize=o,this.points=e;for(var s=e.length<65536?Uint16Array:Uint32Array,c=this.ids=new s(e.length),f=this.coords=new i(2*e.length),l=0;l<e.length;l++)c[l]=l,f[2*l]=r(e[l]),f[2*l+1]=n(e[l]);t(c,f,o,0,c.length-1,0)};return c.prototype.range=function(t,e,r,n){return o(this.ids,this.coords,t,e,r,n,this.nodeSize)},c.prototype.within=function(t,e,r){return i(this.ids,this.coords,t,e,r,this.nodeSize)},c}()}(Rs);var qs=Rs.exports;const Zs={minZoom:0,maxZoom:16,minPoints:2,radius:40,extent:512,nodeSize:64,log:!1,generateId:!1,reduce:null,map:t=>t},Gs=Math.fround||(Bs=new Float32Array(1),t=>(Bs[0]=+t,Bs[0]));var Bs;class Vs{constructor(t){this.options=$s(Object.create(Zs),t),this.trees=new Array(this.options.maxZoom+1)}load(t){const{log:e,minZoom:r,maxZoom:n,nodeSize:o}=this.options;e&&console.time("total time");const i=`prepare ${t.length} points`;e&&console.time(i),this.points=t;let s=[];for(let e=0;e<t.length;e++)t[e].geometry&&s.push(Ws(t[e],e));this.trees[n+1]=new qs(s,Ys,ta,o,Float32Array),e&&console.timeEnd(i);for(let t=n;t>=r;t--){const r=+Date.now();s=this._cluster(s,t),this.trees[t]=new qs(s,Ys,ta,o,Float32Array),e&&console.log("z%d: %d clusters in %dms",t,s.length,+Date.now()-r)}return e&&console.timeEnd("total time"),this}getClusters(t,e){let r=((t[0]+180)%360+360)%360-180;const n=Math.max(-90,Math.min(90,t[1]));let o=180===t[2]?180:((t[2]+180)%360+360)%360-180;const i=Math.max(-90,Math.min(90,t[3]));if(t[2]-t[0]>=360)r=-180,o=180;else if(r>o){const t=this.getClusters([r,n,180,i],e),s=this.getClusters([-180,n,o,i],e);return t.concat(s)}const s=this.trees[this._limitZoom(e)],a=s.range(Hs(r),Js(i),Hs(o),Js(n)),u=[];for(const t of a){const e=s.points[t];u.push(e.numPoints?Qs(e):this.points[e.index])}return u}getChildren(t){const e=this._getOriginId(t),r=this._getOriginZoom(t),n="No cluster with the specified id.",o=this.trees[r];if(!o)throw new Error(n);const i=o.points[e];if(!i)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=o.within(i.x,i.y,s),u=[];for(const e of a){const r=o.points[e];r.parentId===t&&u.push(r.numPoints?Qs(r):this.points[r.index])}if(0===u.length)throw new Error(n);return u}getLeaves(t,e,r){e=e||10,r=r||0;const n=[];return this._appendLeaves(n,t,e,r,0),n}getTile(t,e,r){const n=this.trees[this._limitZoom(t)],o=Math.pow(2,t),{extent:i,radius:s}=this.options,a=s/i,u=(r-a)/o,c=(r+1+a)/o,f={features:[]};return this._addTileFeatures(n.range((e-a)/o,u,(e+1+a)/o,c),n.points,e,r,o,f),0===e&&this._addTileFeatures(n.range(1-a/o,u,1,c),n.points,o,r,o,f),e===o-1&&this._addTileFeatures(n.range(0,u,a/o,c),n.points,-1,r,o,f),f.features.length?f:null}getClusterExpansionZoom(t){let e=this._getOriginZoom(t)-1;for(;e<=this.options.maxZoom;){const r=this.getChildren(t);if(e++,1!==r.length)break;t=r[0].properties.cluster_id}return e}_appendLeaves(t,e,r,n,o){const i=this.getChildren(e);for(const e of i){const i=e.properties;if(i&&i.cluster?o+i.point_count<=n?o+=i.point_count:o=this._appendLeaves(t,i.cluster_id,r,n,o):o<n?o++:t.push(e),t.length===r)break}return o}_addTileFeatures(t,e,r,n,o,i){for(const s of t){const t=e[s],a=t.numPoints;let u,c,f;if(a)u=Xs(t),c=t.x,f=t.y;else{const e=this.points[t.index];u=e.properties,c=Hs(e.geometry.coordinates[0]),f=Js(e.geometry.coordinates[1])}const l={type:1,geometry:[[Math.round(this.options.extent*(c*o-r)),Math.round(this.options.extent*(f*o-n))]],tags:u};let h;a?h=t.id:this.options.generateId?h=t.index:this.points[t.index].id&&(h=this.points[t.index].id),void 0!==h&&(l.id=h),i.features.push(l)}}_limitZoom(t){return Math.max(this.options.minZoom,Math.min(+t,this.options.maxZoom+1))}_cluster(t,e){const r=[],{radius:n,extent:o,reduce:i,minPoints:s}=this.options,a=n/(o*Math.pow(2,e));for(let n=0;n<t.length;n++){const o=t[n];if(o.zoom<=e)continue;o.zoom=e;const u=this.trees[e+1],c=u.within(o.x,o.y,a),f=o.numPoints||1;let l=f;for(const t of c){const r=u.points[t];r.zoom>e&&(l+=r.numPoints||1)}if(l>f&&l>=s){let t=o.x*f,s=o.y*f,a=i&&f>1?this._map(o,!0):null;const h=(n<<5)+(e+1)+this.points.length;for(const r of c){const n=u.points[r];if(n.zoom<=e)continue;n.zoom=e;const c=n.numPoints||1;t+=n.x*c,s+=n.y*c,n.parentId=h,i&&(a||(a=this._map(o,!0)),i(a,this._map(n)))}o.parentId=h,r.push(Us(t/l,s/l,h,l,a))}else if(r.push(o),l>1)for(const t of c){const n=u.points[t];n.zoom<=e||(n.zoom=e,r.push(n))}}return r}_getOriginId(t){return t-this.points.length>>5}_getOriginZoom(t){return(t-this.points.length)%32}_map(t,e){if(t.numPoints)return e?$s({},t.properties):t.properties;const r=this.points[t.index].properties,n=this.options.map(r);return e&&n===r?$s({},n):n}}function Us(t,e,r,n,o){return{x:Gs(t),y:Gs(e),zoom:1/0,id:r,parentId:-1,numPoints:n,properties:o}}function Ws(t,e){const[r,n]=t.geometry.coordinates;return{x:Gs(Hs(r)),y:Gs(Js(n)),zoom:1/0,index:e,parentId:-1}}function Qs(t){return{type:"Feature",id:t.id,properties:Xs(t),geometry:{type:"Point",coordinates:[(e=t.x,360*(e-.5)),Ks(t.y)]}};var e}function Xs(t){const e=t.numPoints,r=e>=1e4?Math.round(e/1e3)+"k":e>=1e3?Math.round(e/100)/10+"k":e;return $s($s({},t.properties),{cluster:!0,cluster_id:t.id,point_count:e,point_count_abbreviated:r})}function Hs(t){return t/360+.5}function Js(t){const e=Math.sin(t*Math.PI/180),r=.5-.25*Math.log((1+e)/(1-e))/Math.PI;return r<0?0:r>1?1:r}function Ks(t){const e=(180-360*t)*Math.PI/180;return 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t+e}),0);this.clusters={count:n.length,markers:{mean:i/n.length,sum:i,min:Math.min.apply(Math,f(o)),max:Math.max.apply(Math,f(o))}}})),uc=function(){function t(){e(this,t)}return n(t,[{key:"render",value:function(t,e){var r=t.count,n=t.position,o=r>Math.max(10,e.clusters.markers.mean)?"#ff0000":"#0000ff",i=window.btoa('\n  <svg fill="'.concat(o,'" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 240 240">\n    <circle cx="120" cy="120" opacity=".6" r="70" />\n    <circle cx="120" cy="120" opacity=".3" r="90" />\n    <circle cx="120" cy="120" opacity=".2" r="110" />\n  </svg>'));return new google.maps.Marker({position:n,icon:{url:"data:image/svg+xml;base64,".concat(i),scaledSize:new google.maps.Size(45,45)},label:{text:String(r),color:"rgba(255,255,255,0.9)",fontSize:"12px"},title:"Cluster of ".concat(r," markers"),zIndex:Number(google.maps.Marker.MAX_ZINDEX)+r})}}]),t}();var cc,fc=n((function t(){e(this,t),function(t,e){for(var r in e.prototype)t.prototype[r]=e.prototype[r]}(t,google.maps.OverlayView)}));t.MarkerClustererEvents=void 0,(cc=t.MarkerClustererEvents||(t.MarkerClustererEvents={})).CLUSTERING_BEGIN="clusteringbegin",cc.CLUSTERING_END="clusteringend",cc.CLUSTER_CLICK="click";var lc=function(t,e,r){r.fitBounds(e.bounds)},hc=function(r){o(s,r);var i=u(s);function s(t){var r,n=t.map,o=t.markers,a=void 0===o?[]:o,u=t.algorithm,c=void 0===u?new ra({}):u,l=t.renderer,h=void 0===l?new uc:l,p=t.onClusterClick,d=void 0===p?lc:p;return e(this,s),(r=i.call(this)).markers=f(a),r.clusters=[],r.algorithm=c,r.renderer=h,r.onClusterClick=d,n&&r.setMap(n),r}return n(s,[{key:"addMarker",value:function(t,e){this.markers.includes(t)||(this.markers.push(t),e||this.render())}},{key:"addMarkers",value:function(t,e){var r=this;t.forEach((function(t){r.addMarker(t,!0)})),e||this.render()}},{key:"removeMarker",value:function(t,e){var r=this.markers.indexOf(t);return-1!==r&&(t.setMap(null),this.markers.splice(r,1),e||this.render(),!0)}},{key:"removeMarkers",value:function(t,e){var r=this,n=!1;return t.forEach((function(t){n=r.removeMarker(t,!0)||n})),n&&!e&&this.render(),n}},{key:"clearMarkers",value:function(t){this.markers.length=0,t||this.render()}},{key:"render",value:function(){var e=this.getMap();if(e instanceof google.maps.Map&&this.getProjection()){google.maps.event.trigger(this,t.MarkerClustererEvents.CLUSTERING_BEGIN,this);var r=this.algorithm.calculate({markers:this.markers,map:e,mapCanvasProjection:this.getProjection()}),n=r.clusters,o=r.changed;(o||null==o)&&(this.reset(),this.clusters=n,this.renderClusters()),google.maps.event.trigger(this,t.MarkerClustererEvents.CLUSTERING_END,this)}}},{key:"onAdd",value:function(){this.idleListener=this.getMap().addListener("idle",this.render.bind(this)),this.render()}},{key:"onRemove",value:function(){google.maps.event.removeListener(this.idleListener),this.reset()}},{key:"reset",value:function(){this.markers.forEach((function(t){return t.setMap(null)})),this.clusters.forEach((function(t){return t.delete()})),this.clusters=[]}},{key:"renderClusters",value:function(){var e=this,r=new ac(this.markers,this.clusters),n=this.getMap();this.clusters.forEach((function(o){1===o.markers.length?o.marker=o.markers[0]:(o.marker=e.renderer.render(o,r),e.onClusterClick&&o.marker.addListener("click",(function(r){google.maps.event.trigger(e,t.MarkerClustererEvents.CLUSTER_CLICK,o),e.onClusterClick(r,o,n)}))),o.marker.setMap(n)}))}}]),s}(fc);t.AbstractAlgorithm=Oi,t.AbstractViewportAlgorithm=Pi,t.Cluster=yi,t.ClusterStats=ac,t.DBScanAlgorithm=zs,t.DefaultRenderer=uc,t.GridAlgorithm=qi,t.KmeansAlgorithm=hs,t.MarkerClusterer=hc,t.NoopAlgorithm=Zi,t.SuperClusterAlgorithm=ra,t.defaultOnClusterClickHandler=lc,t.distanceBetweenPoints=wi,t.extendBoundsToPaddedViewport=_i,t.extendPixelBounds=ki,t.filterMarkersToPaddedViewport=bi,t.noop=Si,t.pixelBoundsToLatLngBounds=Mi,Object.defineProperty(t,"__esModule",{value:!0})}));
 //# sourceMappingURL=index.umd.js.map

package.json

 {
   "name": "@googlemaps/markerclusterer",
-  "version": "1.0.20",
+  "version": "1.0.21",
   "description": "Creates and manages per-zoom-level clusters for large amounts of markers.",
@@ -46,3 +46,3 @@ "keywords": [
     "@babel/runtime-corejs3": "^7.11.2",
-    "@googlemaps/jest-mocks": "^1.3.2",
+    "@googlemaps/jest-mocks": "^2.0.0",
     "@googlemaps/js-api-loader": "^1.12.3",
@@ -49,0 +49,0 @@ "@rollup/plugin-babel": "^5.3.0",

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