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@googlemaps/markerclusterer

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@googlemaps/markerclusterer - npm Package Compare versions

Comparing version 2.1.3 to 2.1.4

5

dist/algorithms/core.d.ts

@@ -18,2 +18,3 @@ /**

import { Cluster } from "../cluster";
import { Marker } from "../marker-utils";
export interface AlgorithmInput {

@@ -70,3 +71,3 @@ /**

* if (shouldBypassClustering(map)) {
* return this.noop({markers, map})
* return this.noop({markers})
* }

@@ -76,3 +77,3 @@ * }

*/
protected noop({ markers }: AlgorithmInput): Cluster[];
protected noop<T extends Pick<AlgorithmInput, "markers">>({ markers, }: T): Cluster[];
/**

@@ -79,0 +80,0 @@ * Calculates an array of {@link Cluster}. Calculate is separate from

1

dist/algorithms/grid.d.ts

@@ -19,2 +19,3 @@ /**

import { Cluster } from "../cluster";
import { Marker } from "../marker-utils";
export interface GridOptions extends ViewportAlgorithmOptions {

@@ -21,0 +22,0 @@ gridSize?: number;

3

dist/algorithms/supercluster.d.ts

@@ -18,2 +18,3 @@ /**

import SuperCluster, { ClusterFeature } from "supercluster";
import { Marker } from "../marker-utils";
import { Cluster } from "../cluster";

@@ -35,3 +36,3 @@ export type SuperClusterOptions = SuperCluster.Options<{

protected state: {
zoom: number;
zoom: number | null;
};

@@ -38,0 +39,0 @@ constructor({ maxZoom, radius, ...options }: SuperClusterOptions);

22

dist/algorithms/utils.d.ts

@@ -17,8 +17,20 @@ /**

/// <reference types="google.maps" />
export declare const filterMarkersToPaddedViewport: (map: google.maps.Map, mapCanvasProjection: google.maps.MapCanvasProjection, markers: Marker[], viewportPadding: number) => Marker[];
import { Marker } from "../marker-utils";
/**
* Extends a bounds by a number of pixels in each direction.
* Returns the markers visible in a padded map viewport
*
* @param map
* @param mapCanvasProjection
* @param markers The list of marker to filter
* @param viewportPaddingPixels The padding in pixel
* @returns The list of markers in the padded viewport
*/
export declare const extendBoundsToPaddedViewport: (bounds: google.maps.LatLngBounds, projection: google.maps.MapCanvasProjection, pixels: number) => google.maps.LatLngBounds;
export declare const filterMarkersToPaddedViewport: (map: google.maps.Map, mapCanvasProjection: google.maps.MapCanvasProjection, markers: Marker[], viewportPaddingPixels: number) => Marker[];
/**
* Extends a bounds by a number of pixels in each direction
*/
export declare const extendBoundsToPaddedViewport: (bounds: google.maps.LatLngBounds, projection: google.maps.MapCanvasProjection, numPixels: number) => google.maps.LatLngBounds;
/**
* Returns the distance between 2 positions.
*
* @hidden

@@ -32,5 +44,7 @@ */

/**
* Extends a pixel bounds by numPixels in all directions.
*
* @hidden
*/
export declare const extendPixelBounds: ({ northEast, southWest }: PixelBounds, pixels: number) => PixelBounds;
export declare const extendPixelBounds: ({ northEast, southWest }: PixelBounds, numPixels: number) => PixelBounds;
/**

@@ -37,0 +51,0 @@ * @hidden

3

dist/cluster.d.ts

@@ -17,2 +17,3 @@ /**

/// <reference types="google.maps" />
import { Marker } from "./marker-utils";
export interface ClusterOptions {

@@ -23,3 +24,3 @@ position?: google.maps.LatLng | google.maps.LatLngLiteral;

export declare class Cluster {
marker: Marker;
marker?: Marker;
readonly markers?: Marker[];

@@ -26,0 +27,0 @@ protected _position: google.maps.LatLng;

111

dist/index.esm.js

@@ -46,13 +46,6 @@ import equal from 'fast-deep-equal';

*/
/**
* util class that creates a common set of convenience functions to wrap
* shared behavior of Advanced Markers and Markers.
*/
class MarkerUtils {
static isAdvancedMarker(marker) {
if (google.maps.marker &&
marker instanceof google.maps.marker.AdvancedMarkerElement) {
return true;
}
return false;
return (google.maps.marker &&
marker instanceof google.maps.marker.AdvancedMarkerElement);
}

@@ -62,5 +55,6 @@ static setMap(marker, map) {

marker.map = map;
return;
}
marker.setMap(map);
else {
marker.setMap(map);
}
}

@@ -70,3 +64,2 @@ static getPosition(marker) {

if (this.isAdvancedMarker(marker)) {
marker = marker;
if (marker.position) {

@@ -129,7 +122,9 @@ if (marker.position instanceof google.maps.LatLng) {

if (this.markers.length === 0 && !this._position) {
return undefined;
return;
}
return this.markers.reduce((bounds, marker) => {
return bounds.extend(MarkerUtils.getPosition(marker));
}, new google.maps.LatLngBounds(this._position, this._position));
const bounds = new google.maps.LatLngBounds(this._position, this._position);
for (const marker of this.markers) {
bounds.extend(MarkerUtils.getPosition(marker));
}
return bounds;
}

@@ -157,3 +152,3 @@ get position() {

MarkerUtils.setMap(this.marker, null);
delete this.marker;
this.marker = undefined;
}

@@ -179,15 +174,26 @@ this.markers.length = 0;

*/
const filterMarkersToPaddedViewport = (map, mapCanvasProjection, markers, viewportPadding) => {
const extendedMapBounds = extendBoundsToPaddedViewport(map.getBounds(), mapCanvasProjection, viewportPadding);
/**
* Returns the markers visible in a padded map viewport
*
* @param map
* @param mapCanvasProjection
* @param markers The list of marker to filter
* @param viewportPaddingPixels The padding in pixel
* @returns The list of markers in the padded viewport
*/
const filterMarkersToPaddedViewport = (map, mapCanvasProjection, markers, viewportPaddingPixels) => {
const extendedMapBounds = extendBoundsToPaddedViewport(map.getBounds(), mapCanvasProjection, viewportPaddingPixels);
return markers.filter((marker) => extendedMapBounds.contains(MarkerUtils.getPosition(marker)));
};
/**
* Extends a bounds by a number of pixels in each direction.
* Extends a bounds by a number of pixels in each direction
*/
const extendBoundsToPaddedViewport = (bounds, projection, pixels) => {
const extendBoundsToPaddedViewport = (bounds, projection, numPixels) => {
const { northEast, southWest } = latLngBoundsToPixelBounds(bounds, projection);
const extendedPixelBounds = extendPixelBounds({ northEast, southWest }, pixels);
const extendedPixelBounds = extendPixelBounds({ northEast, southWest }, numPixels);
return pixelBoundsToLatLngBounds(extendedPixelBounds, projection);
};
/**
* Returns the distance between 2 positions.
*
* @hidden

@@ -208,2 +214,4 @@ */

/**
* Converts a LatLng bound to pixels.
*
* @hidden

@@ -218,9 +226,11 @@ */

/**
* Extends a pixel bounds by numPixels in all directions.
*
* @hidden
*/
const extendPixelBounds = ({ northEast, southWest }, pixels) => {
northEast.x += pixels;
northEast.y -= pixels;
southWest.x -= pixels;
southWest.y += pixels;
const extendPixelBounds = ({ northEast, southWest }, numPixels) => {
northEast.x += numPixels;
northEast.y -= numPixels;
southWest.x -= numPixels;
southWest.y += numPixels;
return { northEast, southWest };

@@ -232,6 +242,5 @@ };

const pixelBoundsToLatLngBounds = ({ northEast, southWest }, projection) => {
const bounds = new google.maps.LatLngBounds();
bounds.extend(projection.fromDivPixelToLatLng(northEast));
bounds.extend(projection.fromDivPixelToLatLng(southWest));
return bounds;
const sw = projection.fromDivPixelToLatLng(southWest);
const ne = projection.fromDivPixelToLatLng(northEast);
return new google.maps.LatLngBounds(sw, ne);
};

@@ -268,3 +277,3 @@

* if (shouldBypassClustering(map)) {
* return this.noop({markers, map})
* return this.noop({markers})
* }

@@ -274,3 +283,3 @@ * }

*/
noop({ markers }) {
noop({ markers, }) {
return noop(markers);

@@ -297,4 +306,2 @@ }

markers,
map,
mapCanvasProjection,
}),

@@ -367,6 +374,4 @@ changed: false,

markers,
map,
mapCanvasProjection,
}),
changed: changed,
changed,
};

@@ -474,2 +479,3 @@ }

let changed = false;
const state = { zoom: input.map.getZoom() };
if (!equal(input.markers, this.markers)) {

@@ -480,2 +486,4 @@ changed = true;

const points = this.markers.map((marker) => {
const position = MarkerUtils.getPosition(marker);
const coordinates = [position.lng(), position.lat()];
return {

@@ -485,6 +493,3 @@ type: "Feature",

type: "Point",
coordinates: [
MarkerUtils.getPosition(marker).lng(),
MarkerUtils.getPosition(marker).lat(),
],
coordinates,
},

@@ -496,7 +501,5 @@ properties: { marker },

}
const state = { zoom: input.map.getZoom() };
if (!changed) {
if (this.state.zoom > this.maxZoom && state.zoom > this.maxZoom) ;
else {
changed = changed || !equal(this.state, state);
if (this.state.zoom <= this.maxZoom || state.zoom <= this.maxZoom) {
changed = !equal(this.state, state);
}

@@ -513,3 +516,3 @@ }

.getClusters([-180, -90, 180, 90], Math.round(map.getZoom()))
.map(this.transformCluster.bind(this));
.map((feature) => this.transformCluster(feature));
}

@@ -522,12 +525,10 @@ transformCluster({ geometry: { coordinates: [lng, lat], }, properties, }) {

.map((leaf) => leaf.properties.marker),
position: new google.maps.LatLng({ lat, lng }),
position: { lat, lng },
});
}
else {
const marker = properties.marker;
return new Cluster({
markers: [marker],
position: MarkerUtils.getPosition(marker),
});
}
const marker = properties.marker;
return new Cluster({
markers: [marker],
position: MarkerUtils.getPosition(marker),
});
}

@@ -534,0 +535,0 @@ }

2

dist/index.min.js

@@ -1,2 +0,2 @@

var markerClusterer=function(t){"use strict";function e(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function r(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,(o=n.key,i=void 0,"symbol"==typeof(i=function(t,e){if("object"!=typeof t||null===t)return t;var r=t[Symbol.toPrimitive];if(void 0!==r){var n=r.call(t,e||"default");if("object"!=typeof n)return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===e?String:Number)(t)}(o,"string"))?i:String(i)),n)}var o,i}function n(t,e,n){return e&&r(t.prototype,e),n&&r(t,n),Object.defineProperty(t,"prototype",{writable:!1}),t}function o(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a 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c=a.pop()||0,l=a.pop()||0,f=a.pop()||0;if(l-f<=s){for(let s=f;s<=l;s++){const a=i[2*s],c=i[2*s+1];a>=t&&a<=r&&c>=e&&c<=n&&u.push(o[s])}continue}const h=f+l>>1,p=i[2*h],d=i[2*h+1];p>=t&&p<=r&&d>=e&&d<=n&&u.push(o[h]),(0===c?t<=p:e<=d)&&(a.push(f),a.push(h-1),a.push(1-c)),(0===c?r>=p:n>=d)&&(a.push(h+1),a.push(l),a.push(1-c))}return u}within(t,e,r){if(!this._finished)throw new Error("Data not yet indexed - call index.finish().");const{ids:n,coords:o,nodeSize:i}=this,s=[0,n.length-1,0],a=[],u=r*r;for(;s.length;){const c=s.pop()||0,l=s.pop()||0,f=s.pop()||0;if(l-f<=i){for(let r=f;r<=l;r++)ks(o[2*r],o[2*r+1],t,e)<=u&&a.push(n[r]);continue}const h=f+l>>1,p=o[2*h],d=o[2*h+1];ks(p,d,t,e)<=u&&a.push(n[h]),(0===c?t-r<=p:e-r<=d)&&(s.push(f),s.push(h-1),s.push(1-c)),(0===c?t+r>=p:e+r>=d)&&(s.push(h+1),s.push(l),s.push(1-c))}return a}}function ys(t,e,r,n,o,i){if(o-n<=r)return;const s=n+o>>1;vs(t,e,s,n,o,i),ys(t,e,r,n,s-1,1-i),ys(t,e,r,s+1,o,1-i)}function vs(t,e,r,n,o,i){for(;o>n;){if(o-n>600){const s=o-n+1,a=r-n+1,u=Math.log(s),c=.5*Math.exp(2*u/3),l=.5*Math.sqrt(u*c*(s-c)/s)*(a-s/2<0?-1:1);vs(t,e,r,Math.max(n,Math.floor(r-a*c/s+l)),Math.min(o,Math.floor(r+(s-a)*c/s+l)),i)}const s=e[2*r+i];let a=n,u=o;for(bs(t,e,n,r),e[2*o+i]>s&&bs(t,e,n,o);a<u;){for(bs(t,e,a,u),a++,u--;e[2*a+i]<s;)a++;for(;e[2*u+i]>s;)u--}e[2*n+i]===s?bs(t,e,n,u):(u++,bs(t,e,u,o)),u<=r&&(n=u+1),r<=u&&(o=u-1)}}function bs(t,e,r,n){ws(t,r,n),ws(e,2*r,2*n),ws(e,2*r+1,2*n+1)}function ws(t,e,r){const n=t[e];t[e]=t[r],t[r]=n}function ks(t,e,r,n){const o=t-r,i=e-n;return o*o+i*i}const Os={minZoom:0,maxZoom:16,minPoints:2,radius:40,extent:512,nodeSize:64,log:!1,generateId:!1,reduce:null,map:t=>t},Ss=Math.fround||(Es=new Float32Array(1),t=>(Es[0]=+t,Es[0]));var Es;const Ms=3,xs=5,js=6;class Ps{constructor(t){this.options=Object.assign(Object.create(Os),t),this.trees=new Array(this.options.maxZoom+1),this.stride=this.options.reduce?7:6,this.clusterProps=[]}load(t){const{log:e,minZoom:r,maxZoom:n}=this.options;e&&console.time("total time");const o=`prepare ${t.length} points`;e&&console.time(o),this.points=t;const i=[];for(let e=0;e<t.length;e++){const r=t[e];if(!r.geometry)continue;const[n,o]=r.geometry.coordinates,s=Ss(Cs(n)),a=Ss(Ts(o));i.push(s,a,1/0,e,-1,1),this.options.reduce&&i.push(0)}let s=this.trees[n+1]=this._createTree(i);e&&console.timeEnd(o);for(let t=n;t>=r;t--){const r=+Date.now();s=this.trees[t]=this._createTree(this._cluster(s,t)),e&&console.log("z%d: %d clusters in %dms",t,s.numItems,+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(Cs(r),Ts(i),Cs(o),Ts(n)),u=s.data,c=[];for(const t of a){const e=this.stride*t;c.push(u[e+xs]>1?As(u,e,this.clusterProps):this.points[u[e+Ms]])}return c}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.data;if(e*this.stride>=i.length)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=i[e*this.stride],u=i[e*this.stride+1],c=o.within(a,u,s),l=[];for(const e of c){const r=e*this.stride;i[r+4]===t&&l.push(i[r+xs]>1?As(i,r,this.clusterProps):this.points[i[r+Ms]])}if(0===l.length)throw new Error(n);return l}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,l={features:[]};return this._addTileFeatures(n.range((e-a)/o,u,(e+1+a)/o,c),n.data,e,r,o,l),0===e&&this._addTileFeatures(n.range(1-a/o,u,1,c),n.data,o,r,o,l),e===o-1&&this._addTileFeatures(n.range(0,u,a/o,c),n.data,-1,r,o,l),l.features.length?l: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}_createTree(t){const e=new gs(t.length/this.stride|0,this.options.nodeSize,Float32Array);for(let r=0;r<t.length;r+=this.stride)e.add(t[r],t[r+1]);return e.finish(),e.data=t,e}_addTileFeatures(t,e,r,n,o,i){for(const s of t){const t=s*this.stride,a=e[t+xs]>1;let u,c,l;if(a)u=_s(e,t,this.clusterProps),c=e[t],l=e[t+1];else{const r=this.points[e[t+Ms]];u=r.properties;const[n,o]=r.geometry.coordinates;c=Cs(n),l=Ts(o)}const f={type:1,geometry:[[Math.round(this.options.extent*(c*o-r)),Math.round(this.options.extent*(l*o-n))]],tags:u};let h;h=a||this.options.generateId?e[t+Ms]:this.points[e[t+Ms]].id,void 0!==h&&(f.id=h),i.features.push(f)}}_limitZoom(t){return Math.max(this.options.minZoom,Math.min(Math.floor(+t),this.options.maxZoom+1))}_cluster(t,e){const{radius:r,extent:n,reduce:o,minPoints:i}=this.options,s=r/(n*Math.pow(2,e)),a=t.data,u=[],c=this.stride;for(let r=0;r<a.length;r+=c){if(a[r+2]<=e)continue;a[r+2]=e;const n=a[r],l=a[r+1],f=t.within(a[r],a[r+1],s),h=a[r+xs];let p=h;for(const t of f){const r=t*c;a[r+2]>e&&(p+=a[r+xs])}if(p>h&&p>=i){let t,i=n*h,s=l*h,d=-1;const m=((r/c|0)<<5)+(e+1)+this.points.length;for(const n of f){const u=n*c;if(a[u+2]<=e)continue;a[u+2]=e;const l=a[u+xs];i+=a[u]*l,s+=a[u+1]*l,a[u+4]=m,o&&(t||(t=this._map(a,r,!0),d=this.clusterProps.length,this.clusterProps.push(t)),o(t,this._map(a,u)))}a[r+4]=m,u.push(i/p,s/p,1/0,m,-1,p),o&&u.push(d)}else{for(let t=0;t<c;t++)u.push(a[r+t]);if(p>1)for(const t of f){const r=t*c;if(!(a[r+2]<=e)){a[r+2]=e;for(let t=0;t<c;t++)u.push(a[r+t])}}}}return u}_getOriginId(t){return t-this.points.length>>5}_getOriginZoom(t){return(t-this.points.length)%32}_map(t,e,r){if(t[e+xs]>1){const n=this.clusterProps[t[e+js]];return r?Object.assign({},n):n}const n=this.points[t[e+Ms]].properties,o=this.options.map(n);return r&&o===n?Object.assign({},o):o}}function As(t,e,r){return{type:"Feature",id:t[e+Ms],properties:_s(t,e,r),geometry:{type:"Point",coordinates:[(n=t[e],360*(n-.5)),Ls(t[e+1])]}};var n}function _s(t,e,r){const n=t[e+xs],o=n>=1e4?`${Math.round(n/1e3)}k`:n>=1e3?Math.round(n/100)/10+"k":n,i=t[e+js],s=-1===i?{}:Object.assign({},r[i]);return Object.assign(s,{cluster:!0,cluster_id:t[e+Ms],point_count:n,point_count_abbreviated:o})}function Cs(t){return t/360+.5}function Ts(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 Ls(t){const e=(180-360*t)*Math.PI/180;return 360*Math.atan(Math.exp(e))/Math.PI-90}var Is=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.maxZoom,s=t.radius,a=void 0===s?60:s,u=ci(t,["maxZoom","radius"]);return(n=r.call(this,{maxZoom:o})).superCluster=new Ps(Object.assign({maxZoom:n.maxZoom,radius:a},u)),n.state={zoom:null},n}return n(i,[{key:"calculate",value:function(t){var e=!1;if(!Xi(t.markers,this.markers)){e=!0,this.markers=l(t.markers);var r=this.markers.map((function(t){return{type:"Feature",geometry:{type:"Point",coordinates:[Ei.getPosition(t).lng(),Ei.getPosition(t).lat()]},properties:{marker:t}}}));this.superCluster.load(r)}var n={zoom:t.map.getZoom()};return 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Array(this.options.maxZoom+1),this.stride=this.options.reduce?7:6,this.clusterProps=[]}load(t){const{log:e,minZoom:r,maxZoom:n}=this.options;e&&console.time("total time");const o=`prepare ${t.length} points`;e&&console.time(o),this.points=t;const i=[];for(let e=0;e<t.length;e++){const r=t[e];if(!r.geometry)continue;const[n,o]=r.geometry.coordinates,s=ds(Os(n)),a=ds(Ss(o));i.push(s,a,1/0,e,-1,1),this.options.reduce&&i.push(0)}let s=this.trees[n+1]=this._createTree(i);e&&console.timeEnd(o);for(let t=n;t>=r;t--){const r=+Date.now();s=this.trees[t]=this._createTree(this._cluster(s,t)),e&&console.log("z%d: %d clusters in %dms",t,s.numItems,+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(Os(r),Ss(i),Os(o),Ss(n)),u=s.data,c=[];for(const t of a){const e=this.stride*t;c.push(u[e+ys]>1?ws(u,e,this.clusterProps):this.points[u[e+gs]])}return c}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.data;if(e*this.stride>=i.length)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=i[e*this.stride],u=i[e*this.stride+1],c=o.within(a,u,s),l=[];for(const e of c){const r=e*this.stride;i[r+4]===t&&l.push(i[r+ys]>1?ws(i,r,this.clusterProps):this.points[i[r+gs]])}if(0===l.length)throw new Error(n);return l}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,l={features:[]};return this._addTileFeatures(n.range((e-a)/o,u,(e+1+a)/o,c),n.data,e,r,o,l),0===e&&this._addTileFeatures(n.range(1-a/o,u,1,c),n.data,o,r,o,l),e===o-1&&this._addTileFeatures(n.range(0,u,a/o,c),n.data,-1,r,o,l),l.features.length?l: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}_createTree(t){const e=new as(t.length/this.stride|0,this.options.nodeSize,Float32Array);for(let r=0;r<t.length;r+=this.stride)e.add(t[r],t[r+1]);return e.finish(),e.data=t,e}_addTileFeatures(t,e,r,n,o,i){for(const s of t){const t=s*this.stride,a=e[t+ys]>1;let u,c,l;if(a)u=ks(e,t,this.clusterProps),c=e[t],l=e[t+1];else{const r=this.points[e[t+gs]];u=r.properties;const[n,o]=r.geometry.coordinates;c=Os(n),l=Ss(o)}const f={type:1,geometry:[[Math.round(this.options.extent*(c*o-r)),Math.round(this.options.extent*(l*o-n))]],tags:u};let h;h=a||this.options.generateId?e[t+gs]:this.points[e[t+gs]].id,void 0!==h&&(f.id=h),i.features.push(f)}}_limitZoom(t){return Math.max(this.options.minZoom,Math.min(Math.floor(+t),this.options.maxZoom+1))}_cluster(t,e){const{radius:r,extent:n,reduce:o,minPoints:i}=this.options,s=r/(n*Math.pow(2,e)),a=t.data,u=[],c=this.stride;for(let r=0;r<a.length;r+=c){if(a[r+2]<=e)continue;a[r+2]=e;const n=a[r],l=a[r+1],f=t.within(a[r],a[r+1],s),h=a[r+ys];let p=h;for(const t of f){const r=t*c;a[r+2]>e&&(p+=a[r+ys])}if(p>h&&p>=i){let t,i=n*h,s=l*h,d=-1;const m=((r/c|0)<<5)+(e+1)+this.points.length;for(const n of f){const u=n*c;if(a[u+2]<=e)continue;a[u+2]=e;const l=a[u+ys];i+=a[u]*l,s+=a[u+1]*l,a[u+4]=m,o&&(t||(t=this._map(a,r,!0),d=this.clusterProps.length,this.clusterProps.push(t)),o(t,this._map(a,u)))}a[r+4]=m,u.push(i/p,s/p,1/0,m,-1,p),o&&u.push(d)}else{for(let t=0;t<c;t++)u.push(a[r+t]);if(p>1)for(const t of f){const r=t*c;if(!(a[r+2]<=e)){a[r+2]=e;for(let t=0;t<c;t++)u.push(a[r+t])}}}}return u}_getOriginId(t){return t-this.points.length>>5}_getOriginZoom(t){return(t-this.points.length)%32}_map(t,e,r){if(t[e+ys]>1){const n=this.clusterProps[t[e+vs]];return r?Object.assign({},n):n}const n=this.points[t[e+gs]].properties,o=this.options.map(n);return r&&o===n?Object.assign({},o):o}}function ws(t,e,r){return{type:"Feature",id:t[e+gs],properties:ks(t,e,r),geometry:{type:"Point",coordinates:[(n=t[e],360*(n-.5)),Es(t[e+1])]}};var n}function ks(t,e,r){const n=t[e+ys],o=n>=1e4?`${Math.round(n/1e3)}k`:n>=1e3?Math.round(n/100)/10+"k":n,i=t[e+vs],s=-1===i?{}:Object.assign({},r[i]);return 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instanceof ArrayBuffer?(this.data=n,this.ids=new this.IndexArrayType(this.data,8,t),this.coords=new this.ArrayType(this.data,8+s+a,2*t),this._pos=2*t,this._finished=!0):(this.data=new ArrayBuffer(8+i+s+a),this.ids=new this.IndexArrayType(this.data,8,t),this.coords=new this.ArrayType(this.data,8+s+a,2*t),this._pos=0,this._finished=!1,new Uint8Array(this.data,0,2).set([219,16+o]),new Uint16Array(this.data,2,1)[0]=e,new Uint32Array(this.data,4,1)[0]=t)}add(t,e){const r=this._pos>>1;return this.ids[r]=r,this.coords[this._pos++]=t,this.coords[this._pos++]=e,r}finish(){const t=this._pos>>1;if(t!==this.numItems)throw new Error(`Added ${t} items when expected ${this.numItems}.`);return ys(this.ids,this.coords,this.nodeSize,0,this.numItems-1,0),this._finished=!0,this}range(t,e,r,n){if(!this._finished)throw new Error("Data not yet indexed - call index.finish().");const{ids:o,coords:i,nodeSize:s}=this,a=[0,o.length-1,0],u=[];for(;a.length;){const c=a.pop()||0,l=a.pop()||0,f=a.pop()||0;if(l-f<=s){for(let s=f;s<=l;s++){const a=i[2*s],c=i[2*s+1];a>=t&&a<=r&&c>=e&&c<=n&&u.push(o[s])}continue}const h=f+l>>1,p=i[2*h],d=i[2*h+1];p>=t&&p<=r&&d>=e&&d<=n&&u.push(o[h]),(0===c?t<=p:e<=d)&&(a.push(f),a.push(h-1),a.push(1-c)),(0===c?r>=p:n>=d)&&(a.push(h+1),a.push(l),a.push(1-c))}return u}within(t,e,r){if(!this._finished)throw new Error("Data not yet indexed - call index.finish().");const{ids:n,coords:o,nodeSize:i}=this,s=[0,n.length-1,0],a=[],u=r*r;for(;s.length;){const c=s.pop()||0,l=s.pop()||0,f=s.pop()||0;if(l-f<=i){for(let r=f;r<=l;r++)ks(o[2*r],o[2*r+1],t,e)<=u&&a.push(n[r]);continue}const h=f+l>>1,p=o[2*h],d=o[2*h+1];ks(p,d,t,e)<=u&&a.push(n[h]),(0===c?t-r<=p:e-r<=d)&&(s.push(f),s.push(h-1),s.push(1-c)),(0===c?t+r>=p:e+r>=d)&&(s.push(h+1),s.push(l),s.push(1-c))}return a}}function ys(t,e,r,n,o,i){if(o-n<=r)return;const s=n+o>>1;vs(t,e,s,n,o,i),ys(t,e,r,n,s-1,1-i),ys(t,e,r,s+1,o,1-i)}function vs(t,e,r,n,o,i){for(;o>n;){if(o-n>600){const s=o-n+1,a=r-n+1,u=Math.log(s),c=.5*Math.exp(2*u/3),l=.5*Math.sqrt(u*c*(s-c)/s)*(a-s/2<0?-1:1);vs(t,e,r,Math.max(n,Math.floor(r-a*c/s+l)),Math.min(o,Math.floor(r+(s-a)*c/s+l)),i)}const s=e[2*r+i];let a=n,u=o;for(bs(t,e,n,r),e[2*o+i]>s&&bs(t,e,n,o);a<u;){for(bs(t,e,a,u),a++,u--;e[2*a+i]<s;)a++;for(;e[2*u+i]>s;)u--}e[2*n+i]===s?bs(t,e,n,u):(u++,bs(t,e,u,o)),u<=r&&(n=u+1),r<=u&&(o=u-1)}}function bs(t,e,r,n){ws(t,r,n),ws(e,2*r,2*n),ws(e,2*r+1,2*n+1)}function ws(t,e,r){const n=t[e];t[e]=t[r],t[r]=n}function ks(t,e,r,n){const o=t-r,i=e-n;return o*o+i*i}const Os={minZoom:0,maxZoom:16,minPoints:2,radius:40,extent:512,nodeSize:64,log:!1,generateId:!1,reduce:null,map:t=>t},Ss=Math.fround||(Es=new Float32Array(1),t=>(Es[0]=+t,Es[0]));var Es;const Ms=3,xs=5,js=6;class Ps{constructor(t){this.options=Object.assign(Object.create(Os),t),this.trees=new Array(this.options.maxZoom+1),this.stride=this.options.reduce?7:6,this.clusterProps=[]}load(t){const{log:e,minZoom:r,maxZoom:n}=this.options;e&&console.time("total time");const o=`prepare ${t.length} points`;e&&console.time(o),this.points=t;const i=[];for(let e=0;e<t.length;e++){const r=t[e];if(!r.geometry)continue;const[n,o]=r.geometry.coordinates,s=Ss(Cs(n)),a=Ss(Ts(o));i.push(s,a,1/0,e,-1,1),this.options.reduce&&i.push(0)}let s=this.trees[n+1]=this._createTree(i);e&&console.timeEnd(o);for(let t=n;t>=r;t--){const r=+Date.now();s=this.trees[t]=this._createTree(this._cluster(s,t)),e&&console.log("z%d: %d clusters in %dms",t,s.numItems,+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(Cs(r),Ts(i),Cs(o),Ts(n)),u=s.data,c=[];for(const t of a){const e=this.stride*t;c.push(u[e+xs]>1?As(u,e,this.clusterProps):this.points[u[e+Ms]])}return c}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.data;if(e*this.stride>=i.length)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=i[e*this.stride],u=i[e*this.stride+1],c=o.within(a,u,s),l=[];for(const e of c){const r=e*this.stride;i[r+4]===t&&l.push(i[r+xs]>1?As(i,r,this.clusterProps):this.points[i[r+Ms]])}if(0===l.length)throw new Error(n);return l}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,l={features:[]};return this._addTileFeatures(n.range((e-a)/o,u,(e+1+a)/o,c),n.data,e,r,o,l),0===e&&this._addTileFeatures(n.range(1-a/o,u,1,c),n.data,o,r,o,l),e===o-1&&this._addTileFeatures(n.range(0,u,a/o,c),n.data,-1,r,o,l),l.features.length?l: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}_createTree(t){const e=new gs(t.length/this.stride|0,this.options.nodeSize,Float32Array);for(let r=0;r<t.length;r+=this.stride)e.add(t[r],t[r+1]);return e.finish(),e.data=t,e}_addTileFeatures(t,e,r,n,o,i){for(const s of t){const t=s*this.stride,a=e[t+xs]>1;let u,c,l;if(a)u=_s(e,t,this.clusterProps),c=e[t],l=e[t+1];else{const r=this.points[e[t+Ms]];u=r.properties;const[n,o]=r.geometry.coordinates;c=Cs(n),l=Ts(o)}const f={type:1,geometry:[[Math.round(this.options.extent*(c*o-r)),Math.round(this.options.extent*(l*o-n))]],tags:u};let h;h=a||this.options.generateId?e[t+Ms]:this.points[e[t+Ms]].id,void 0!==h&&(f.id=h),i.features.push(f)}}_limitZoom(t){return Math.max(this.options.minZoom,Math.min(Math.floor(+t),this.options.maxZoom+1))}_cluster(t,e){const{radius:r,extent:n,reduce:o,minPoints:i}=this.options,s=r/(n*Math.pow(2,e)),a=t.data,u=[],c=this.stride;for(let r=0;r<a.length;r+=c){if(a[r+2]<=e)continue;a[r+2]=e;const n=a[r],l=a[r+1],f=t.within(a[r],a[r+1],s),h=a[r+xs];let p=h;for(const t of f){const r=t*c;a[r+2]>e&&(p+=a[r+xs])}if(p>h&&p>=i){let t,i=n*h,s=l*h,d=-1;const m=((r/c|0)<<5)+(e+1)+this.points.length;for(const n of f){const u=n*c;if(a[u+2]<=e)continue;a[u+2]=e;const l=a[u+xs];i+=a[u]*l,s+=a[u+1]*l,a[u+4]=m,o&&(t||(t=this._map(a,r,!0),d=this.clusterProps.length,this.clusterProps.push(t)),o(t,this._map(a,u)))}a[r+4]=m,u.push(i/p,s/p,1/0,m,-1,p),o&&u.push(d)}else{for(let t=0;t<c;t++)u.push(a[r+t]);if(p>1)for(const t of f){const r=t*c;if(!(a[r+2]<=e)){a[r+2]=e;for(let t=0;t<c;t++)u.push(a[r+t])}}}}return u}_getOriginId(t){return t-this.points.length>>5}_getOriginZoom(t){return(t-this.points.length)%32}_map(t,e,r){if(t[e+xs]>1){const n=this.clusterProps[t[e+js]];return r?Object.assign({},n):n}const n=this.points[t[e+Ms]].properties,o=this.options.map(n);return r&&o===n?Object.assign({},o):o}}function As(t,e,r){return{type:"Feature",id:t[e+Ms],properties:_s(t,e,r),geometry:{type:"Point",coordinates:[(n=t[e],360*(n-.5)),Ls(t[e+1])]}};var n}function _s(t,e,r){const n=t[e+xs],o=n>=1e4?`${Math.round(n/1e3)}k`:n>=1e3?Math.round(n/100)/10+"k":n,i=t[e+js],s=-1===i?{}:Object.assign({},r[i]);return Object.assign(s,{cluster:!0,cluster_id:t[e+Ms],point_count:n,point_count_abbreviated:o})}function Cs(t){return t/360+.5}function Ts(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 Ls(t){const e=(180-360*t)*Math.PI/180;return 360*Math.atan(Math.exp(e))/Math.PI-90}var Is=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.maxZoom,s=t.radius,a=void 0===s?60:s,u=ci(t,["maxZoom","radius"]);return(n=r.call(this,{maxZoom:o})).superCluster=new Ps(Object.assign({maxZoom:n.maxZoom,radius:a},u)),n.state={zoom:null},n}return n(i,[{key:"calculate",value:function(t){var e=!1;if(!Xi(t.markers,this.markers)){e=!0,this.markers=l(t.markers);var r=this.markers.map((function(t){return{type:"Feature",geometry:{type:"Point",coordinates:[Ei.getPosition(t).lng(),Ei.getPosition(t).lat()]},properties:{marker:t}}}));this.superCluster.load(r)}var n={zoom:t.map.getZoom()};return 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r,n=t.map,o=t.markers,a=void 0===o?[]:o,u=t.algorithmOptions,c=void 0===u?{}:u,f=t.algorithm,h=void 0===f?new Is(c):f,p=t.renderer,d=void 0===p?new Xu:p,m=t.onClusterClick,g=void 0===m?Ju:m;return e(this,s),(r=i.call(this)).markers=l(a),r.clusters=[],r.algorithm=h,r.renderer=d,r.onClusterClick=g,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&&(Ei.setMap(t,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 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r=(e.lat-t.lat)*Math.PI/180,n=(e.lng-t.lng)*Math.PI/180,o=Math.sin(r/2)*Math.sin(r/2)+Math.cos(t.lat*Math.PI/180)*Math.cos(e.lat*Math.PI/180)*Math.sin(n/2)*Math.sin(n/2);return 6371*(2*Math.atan2(Math.sqrt(o),Math.sqrt(1-o)))},vi=function(t,e){return{northEast:e.fromLatLngToDivPixel(t.getNorthEast()),southWest:e.fromLatLngToDivPixel(t.getSouthWest())}},bi=function(t,e){var r=t.northEast,n=t.southWest;return r.x+=e,r.y-=e,n.x-=e,n.y+=e,{northEast:r,southWest:n}},wi=function(t,e){var r=t.northEast,n=t.southWest,o=e.fromDivPixelToLatLng(n),i=e.fromDivPixelToLatLng(r);return new google.maps.LatLngBounds(o,i)},ki=function(){function t(r){var n=r.maxZoom,o=void 0===n?16:n;e(this,t),this.maxZoom=o}return n(t,[{key:"noop",value:function(t){var e=t.markers;return Si(e)}}]),t}(),Oi=function(t){o(i,t);var r=u(i);function i(t){var n;e(this,i);var o=t.viewportPadding,s=void 0===o?60:o,a=ci(t,["viewportPadding"]);return(n=r.call(this,a)).viewportPadding=60,n.viewportPadding=s,n}return n(i,[{key:"calculate",value:function(t){var e=t.markers,r=t.map,n=t.mapCanvasProjection;return r.getZoom()>=this.maxZoom?{clusters:this.noop({markers:e}),changed:!1}:{clusters:this.cluster({markers:mi(r,n,e,this.viewportPadding),map:r,mapCanvasProjection:n})}}}]),i}(ki),Si=function(t){return t.map((function(t){return new di({position:pi.getPosition(t),markers:[t]})}))},Ei=je("span").classList,Mi=Ei&&Ei.constructor&&Ei.constructor.prototype,xi=Mi===Object.prototype?void 0:Mi,ji=v,Ai=function(t,e){var r=[][t];return!!r&&ji((function(){r.call(null,e||function(){return 1},1)}))},Pi=ni.forEach,_i=Ai("forEach")?[].forEach:function(t){return Pi(this,t,arguments.length>1?arguments[1]:void 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n,o,i;if(Array.isArray(e)){if((n=e.length)!=r.length)return!1;for(o=n;0!=o--;)if(!t(e[o],r[o]))return!1;return!0}if(e.constructor===RegExp)return e.source===r.source&&e.flags===r.flags;if(e.valueOf!==Object.prototype.valueOf)return e.valueOf()===r.valueOf();if(e.toString!==Object.prototype.toString)return e.toString()===r.toString();if((n=(i=Object.keys(e)).length)!==Object.keys(r).length)return!1;for(o=n;0!=o--;)if(!Object.prototype.hasOwnProperty.call(r,i[o]))return!1;for(o=n;0!=o--;){var s=i[o];if(!t(e[s],r[s]))return!1}return!0}return e!=e&&r!=r},Zi=d(zi),Ui=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?4e4:o,a=t.gridSize,u=void 0===a?40:a,c=ci(t,["maxDistance","gridSize"]);return(n=r.call(this,c)).clusters=[],n.maxDistance=s,n.gridSize=u,n.state={zoom:null},n}return n(i,[{key:"calculate",value:function(t){var e=t.markers,r=t.map,n=t.mapCanvasProjection,o={zoom:r.getZoom()},i=!1;return this.state.zoom>this.maxZoom&&o.zoom>this.maxZoom||(i=!Zi(this.state,o)),this.state=o,r.getZoom()>=this.maxZoom?{clusters:this.noop({markers:e}),changed:i}:{clusters:this.cluster({markers:mi(r,n,e,this.viewportPadding),map:r,mapCanvasProjection:n})}}},{key:"cluster",value:function(t){var e=this,r=t.markers,n=t.map,o=t.mapCanvasProjection;return this.clusters=[],r.forEach((function(t){e.addToClosestCluster(t,n,o)})),this.clusters}},{key:"addToClosestCluster",value:function(t,e,r){for(var n=this.maxDistance,o=null,i=0;i<this.clusters.length;i++){var s=this.clusters[i],a=yi(s.bounds.getCenter().toJSON(),pi.getPosition(t).toJSON());a<n&&(n=a,o=s)}if(o&&gi(o.bounds,r,this.gridSize).contains(pi.getPosition(t)))o.push(t);else{var u=new di({markers:[t]});this.clusters.push(u)}}}]),i}(Oi),Bi=function(t){o(i,t);var r=u(i);function i(t){e(this,i);var n=ci(t,[]);return r.call(this,n)}return n(i,[{key:"calculate",value:function(t){var 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ss=[Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array];class as{static from(t){if(!(t instanceof ArrayBuffer))throw new Error("Data must be an instance of ArrayBuffer.");const[e,r]=new Uint8Array(t,0,2);if(219!==e)throw new Error("Data does not appear to be in a KDBush format.");const n=r>>4;if(1!==n)throw new Error(`Got v${n} data when expected v1.`);const o=ss[15&r];if(!o)throw new Error("Unrecognized array type.");const[i]=new Uint16Array(t,2,1),[s]=new Uint32Array(t,4,1);return new as(s,i,o,t)}constructor(t,e=64,r=Float64Array,n){if(isNaN(t)||t<0)throw new Error(`Unpexpected numItems value: ${t}.`);this.numItems=+t,this.nodeSize=Math.min(Math.max(+e,2),65535),this.ArrayType=r,this.IndexArrayType=t<65536?Uint16Array:Uint32Array;const o=ss.indexOf(this.ArrayType),i=2*t*this.ArrayType.BYTES_PER_ELEMENT,s=t*this.IndexArrayType.BYTES_PER_ELEMENT,a=(8-s%8)%8;if(o<0)throw new Error(`Unexpected typed array class: ${r}.`);n&&n instanceof ArrayBuffer?(this.data=n,this.ids=new this.IndexArrayType(this.data,8,t),this.coords=new this.ArrayType(this.data,8+s+a,2*t),this._pos=2*t,this._finished=!0):(this.data=new ArrayBuffer(8+i+s+a),this.ids=new this.IndexArrayType(this.data,8,t),this.coords=new this.ArrayType(this.data,8+s+a,2*t),this._pos=0,this._finished=!1,new Uint8Array(this.data,0,2).set([219,16+o]),new Uint16Array(this.data,2,1)[0]=e,new Uint32Array(this.data,4,1)[0]=t)}add(t,e){const r=this._pos>>1;return this.ids[r]=r,this.coords[this._pos++]=t,this.coords[this._pos++]=e,r}finish(){const t=this._pos>>1;if(t!==this.numItems)throw new Error(`Added ${t} items when expected ${this.numItems}.`);return us(this.ids,this.coords,this.nodeSize,0,this.numItems-1,0),this._finished=!0,this}range(t,e,r,n){if(!this._finished)throw new Error("Data not yet indexed - call index.finish().");const{ids:o,coords:i,nodeSize:s}=this,a=[0,o.length-1,0],u=[];for(;a.length;){const c=a.pop()||0,l=a.pop()||0,f=a.pop()||0;if(l-f<=s){for(let s=f;s<=l;s++){const a=i[2*s],c=i[2*s+1];a>=t&&a<=r&&c>=e&&c<=n&&u.push(o[s])}continue}const h=f+l>>1,p=i[2*h],d=i[2*h+1];p>=t&&p<=r&&d>=e&&d<=n&&u.push(o[h]),(0===c?t<=p:e<=d)&&(a.push(f),a.push(h-1),a.push(1-c)),(0===c?r>=p:n>=d)&&(a.push(h+1),a.push(l),a.push(1-c))}return u}within(t,e,r){if(!this._finished)throw new Error("Data not yet indexed - call index.finish().");const{ids:n,coords:o,nodeSize:i}=this,s=[0,n.length-1,0],a=[],u=r*r;for(;s.length;){const c=s.pop()||0,l=s.pop()||0,f=s.pop()||0;if(l-f<=i){for(let r=f;r<=l;r++)hs(o[2*r],o[2*r+1],t,e)<=u&&a.push(n[r]);continue}const h=f+l>>1,p=o[2*h],d=o[2*h+1];hs(p,d,t,e)<=u&&a.push(n[h]),(0===c?t-r<=p:e-r<=d)&&(s.push(f),s.push(h-1),s.push(1-c)),(0===c?t+r>=p:e+r>=d)&&(s.push(h+1),s.push(l),s.push(1-c))}return a}}function us(t,e,r,n,o,i){if(o-n<=r)return;const s=n+o>>1;cs(t,e,s,n,o,i),us(t,e,r,n,s-1,1-i),us(t,e,r,s+1,o,1-i)}function cs(t,e,r,n,o,i){for(;o>n;){if(o-n>600){const s=o-n+1,a=r-n+1,u=Math.log(s),c=.5*Math.exp(2*u/3),l=.5*Math.sqrt(u*c*(s-c)/s)*(a-s/2<0?-1:1);cs(t,e,r,Math.max(n,Math.floor(r-a*c/s+l)),Math.min(o,Math.floor(r+(s-a)*c/s+l)),i)}const s=e[2*r+i];let a=n,u=o;for(ls(t,e,n,r),e[2*o+i]>s&&ls(t,e,n,o);a<u;){for(ls(t,e,a,u),a++,u--;e[2*a+i]<s;)a++;for(;e[2*u+i]>s;)u--}e[2*n+i]===s?ls(t,e,n,u):(u++,ls(t,e,u,o)),u<=r&&(n=u+1),r<=u&&(o=u-1)}}function ls(t,e,r,n){fs(t,r,n),fs(e,2*r,2*n),fs(e,2*r+1,2*n+1)}function fs(t,e,r){const n=t[e];t[e]=t[r],t[r]=n}function hs(t,e,r,n){const o=t-r,i=e-n;return o*o+i*i}const ps={minZoom:0,maxZoom:16,minPoints:2,radius:40,extent:512,nodeSize:64,log:!1,generateId:!1,reduce:null,map:t=>t},ds=Math.fround||(ms=new Float32Array(1),t=>(ms[0]=+t,ms[0]));var ms;const gs=3,ys=5,vs=6;class bs{constructor(t){this.options=Object.assign(Object.create(ps),t),this.trees=new Array(this.options.maxZoom+1),this.stride=this.options.reduce?7:6,this.clusterProps=[]}load(t){const{log:e,minZoom:r,maxZoom:n}=this.options;e&&console.time("total time");const o=`prepare ${t.length} points`;e&&console.time(o),this.points=t;const i=[];for(let e=0;e<t.length;e++){const r=t[e];if(!r.geometry)continue;const[n,o]=r.geometry.coordinates,s=ds(Os(n)),a=ds(Ss(o));i.push(s,a,1/0,e,-1,1),this.options.reduce&&i.push(0)}let s=this.trees[n+1]=this._createTree(i);e&&console.timeEnd(o);for(let t=n;t>=r;t--){const r=+Date.now();s=this.trees[t]=this._createTree(this._cluster(s,t)),e&&console.log("z%d: %d clusters in %dms",t,s.numItems,+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(Os(r),Ss(i),Os(o),Ss(n)),u=s.data,c=[];for(const t of a){const e=this.stride*t;c.push(u[e+ys]>1?ws(u,e,this.clusterProps):this.points[u[e+gs]])}return c}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.data;if(e*this.stride>=i.length)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=i[e*this.stride],u=i[e*this.stride+1],c=o.within(a,u,s),l=[];for(const e of c){const r=e*this.stride;i[r+4]===t&&l.push(i[r+ys]>1?ws(i,r,this.clusterProps):this.points[i[r+gs]])}if(0===l.length)throw new Error(n);return l}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 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t){const t=s*this.stride,a=e[t+ys]>1;let u,c,l;if(a)u=ks(e,t,this.clusterProps),c=e[t],l=e[t+1];else{const r=this.points[e[t+gs]];u=r.properties;const[n,o]=r.geometry.coordinates;c=Os(n),l=Ss(o)}const f={type:1,geometry:[[Math.round(this.options.extent*(c*o-r)),Math.round(this.options.extent*(l*o-n))]],tags:u};let h;h=a||this.options.generateId?e[t+gs]:this.points[e[t+gs]].id,void 0!==h&&(f.id=h),i.features.push(f)}}_limitZoom(t){return Math.max(this.options.minZoom,Math.min(Math.floor(+t),this.options.maxZoom+1))}_cluster(t,e){const{radius:r,extent:n,reduce:o,minPoints:i}=this.options,s=r/(n*Math.pow(2,e)),a=t.data,u=[],c=this.stride;for(let r=0;r<a.length;r+=c){if(a[r+2]<=e)continue;a[r+2]=e;const n=a[r],l=a[r+1],f=t.within(a[r],a[r+1],s),h=a[r+ys];let p=h;for(const t of f){const r=t*c;a[r+2]>e&&(p+=a[r+ys])}if(p>h&&p>=i){let t,i=n*h,s=l*h,d=-1;const m=((r/c|0)<<5)+(e+1)+this.points.length;for(const n of f){const u=n*c;if(a[u+2]<=e)continue;a[u+2]=e;const l=a[u+ys];i+=a[u]*l,s+=a[u+1]*l,a[u+4]=m,o&&(t||(t=this._map(a,r,!0),d=this.clusterProps.length,this.clusterProps.push(t)),o(t,this._map(a,u)))}a[r+4]=m,u.push(i/p,s/p,1/0,m,-1,p),o&&u.push(d)}else{for(let t=0;t<c;t++)u.push(a[r+t]);if(p>1)for(const t of f){const r=t*c;if(!(a[r+2]<=e)){a[r+2]=e;for(let t=0;t<c;t++)u.push(a[r+t])}}}}return u}_getOriginId(t){return t-this.points.length>>5}_getOriginZoom(t){return(t-this.points.length)%32}_map(t,e,r){if(t[e+ys]>1){const n=this.clusterProps[t[e+vs]];return r?Object.assign({},n):n}const n=this.points[t[e+gs]].properties,o=this.options.map(n);return r&&o===n?Object.assign({},o):o}}function ws(t,e,r){return{type:"Feature",id:t[e+gs],properties:ks(t,e,r),geometry:{type:"Point",coordinates:[(n=t[e],360*(n-.5)),Es(t[e+1])]}};var n}function ks(t,e,r){const n=t[e+ys],o=n>=1e4?`${Math.round(n/1e3)}k`:n>=1e3?Math.round(n/100)/10+"k":n,i=t[e+vs],s=-1===i?{}:Object.assign({},r[i]);return 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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>'),a="Cluster of ".concat(n," markers"),u=Number(google.maps.Marker.MAX_ZINDEX)+n;if(google.maps.marker&&r.getMapCapabilities().isAdvancedMarkersAvailable){var c=document.createElement("div");c.innerHTML=s;var l=c.firstElementChild;l.setAttribute("width","50"),l.setAttribute("height","50");var f=document.createElementNS("http://www.w3.org/2000/svg","text");f.setAttribute("x","50%"),f.setAttribute("y","50%"),f.setAttribute("style","fill: #FFF"),f.setAttribute("text-anchor","middle"),f.setAttribute("font-size","50"),f.setAttribute("dominant-baseline","middle"),f.appendChild(document.createTextNode("".concat(n))),l.appendChild(f);var h={map:r,position:o,zIndex:u,title:a,content:c.firstElementChild};return new google.maps.marker.AdvancedMarkerElement(h)}var p={position:o,zIndex:u,title:a,icon:{url:"data:image/svg+xml;base64,".concat(window.btoa(s)),scaledSize:new google.maps.Size(45,45)},label:{text:String(n),color:"rgba(255,255,255,0.9)",fontSize:"12px"}};return new google.maps.Marker(p)}}]),t}();var Yu,Ku=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,(Yu=t.MarkerClustererEvents||(t.MarkerClustererEvents={})).CLUSTERING_BEGIN="clusteringbegin",Yu.CLUSTERING_END="clusteringend",Yu.CLUSTER_CLICK="click";var Ju=function(t,e,r){r.fitBounds(e.bounds)},Qu=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.algorithmOptions,c=void 0===u?{}:u,f=t.algorithm,h=void 0===f?new Ms(c):f,p=t.renderer,d=void 0===p?new Xu:p,m=t.onClusterClick,g=void 0===m?Ju:m;return e(this,s),(r=i.call(this)).markers=l(a),r.clusters=[],r.algorithm=h,r.renderer=d,r.onClusterClick=g,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&&(pi.setMap(t,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&&e.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 pi.setMap(t,null)})),this.clusters.forEach((function(t){return t.delete()})),this.clusters=[]}},{key:"renderClusters",value:function(){var e=this,r=new qu(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,n),e.onClusterClick&&o.marker.addListener("click",(function(r){google.maps.event.trigger(e,t.MarkerClustererEvents.CLUSTER_CLICK,o),e.onClusterClick(r,o,n)}))),pi.setMap(o.marker,n)}))}}]),s}(Ku);t.AbstractAlgorithm=ki,t.AbstractViewportAlgorithm=Oi,t.Cluster=di,t.ClusterStats=qu,t.DefaultRenderer=Xu,t.GridAlgorithm=Ui,t.MarkerClusterer=Qu,t.NoopAlgorithm=Bi,t.SuperClusterAlgorithm=Ms,t.defaultOnClusterClickHandler=Ju,t.distanceBetweenPoints=yi,t.extendBoundsToPaddedViewport=gi,t.extendPixelBounds=bi,t.filterMarkersToPaddedViewport=mi,t.noop=Si,t.pixelBoundsToLatLngBounds=wi,Object.defineProperty(t,"__esModule",{value:!0})}));
//# sourceMappingURL=index.umd.js.map

3

dist/marker-utils.d.ts

@@ -21,4 +21,5 @@ /**

*/
export type Marker = google.maps.Marker | google.maps.marker.AdvancedMarkerElement;
export declare class MarkerUtils {
static isAdvancedMarker(marker: Marker): boolean;
static isAdvancedMarker(marker: Marker): marker is google.maps.marker.AdvancedMarkerElement;
static setMap(marker: Marker, map: google.maps.Map | null): void;

@@ -25,0 +26,0 @@ static getPosition(marker: Marker): google.maps.LatLng;

1

dist/markerclusterer.d.ts

@@ -21,2 +21,3 @@ /**

import { OverlayViewSafe } from "./overlay-view-safe";
import { Marker } from "./marker-utils";
export type onClusterClickHandler = (event: google.maps.MapMouseEvent, cluster: Cluster, map: google.maps.Map) => void;

@@ -23,0 +24,0 @@ export interface MarkerClustererOptions {

1

dist/renderer.d.ts

@@ -18,2 +18,3 @@ /**

import { Cluster } from "./cluster";
import { Marker } from "./marker-utils";
/**

@@ -20,0 +21,0 @@ * Provides statistics on all clusters in the current render cycle for use in {@link Renderer.render}.

12

package.json
{
"name": "@googlemaps/markerclusterer",
"version": "2.1.3",
"version": "2.1.4",
"description": "Creates and manages per-zoom-level clusters for large amounts of markers.",

@@ -48,3 +48,3 @@ "keywords": [

"@rollup/plugin-babel": "^6.0.0",
"@rollup/plugin-commonjs": "^24.0.0",
"@rollup/plugin-commonjs": "^25.0.0",
"@rollup/plugin-html": "^1.0.0",

@@ -61,10 +61,10 @@ "@rollup/plugin-json": "^6.0.0",

"@typescript-eslint/parser": ">=4.1.0",
"chromedriver": "^111.0.0",
"chromedriver": "^113.0.0",
"core-js": "^3.6.5",
"d3-interpolate": "^3.0.1",
"eslint": "^7.8.1",
"eslint": "^8.41.0",
"eslint-config-prettier": "^8.3.0",
"eslint-plugin-jest": "^27.0.1",
"eslint-plugin-prettier": "^4.0.0",
"geckodriver": "^3.0.0",
"geckodriver": "^4.0.0",
"jest": "^26.4.2",

@@ -76,3 +76,3 @@ "prettier": "^2.1.1",

"ts-jest": "^26.3.0",
"typedoc": "^0.23.1",
"typedoc": "^0.24.7",
"typescript": "^4.0.2"

@@ -79,0 +79,0 @@ },

dist/index.dev.js

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dist/index.esm.js.map

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dist/index.min.js.map

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dist/index.umd.js.map

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