// https://d3js.org/d3-quadtree/ v3.0.1 Copyright 2010-2021 Mike Bostock
!function(t,i){"object"==typeof exports&&"undefined"!=typeof module?i(exports):"function"==typeof define&&define.amd?define(["exports"],i):i((t="undefined"!=typeof globalThis?globalThis:t||self).d3=t.d3||{})}(this,(function(t){"use strict";function i(t,i,e,n){if(isNaN(i)||isNaN(e))return t;var r,s,h,o,a,u,l,_,f,c=t._root,x={data:n},y=t._x0,d=t._y0,p=t._x1,v=t._y1;if(!c)return t._root=x,t;for(;c.length;)if((u=i>=(s=(y+p)/2))?y=s:p=s,(l=e>=(h=(d+v)/2))?d=h:v=h,r=c,!(c=c[_=l<<1|u]))return r[_]=x,t;if(o=+t._x.call(null,c.data),a=+t._y.call(null,c.data),i===o&&e===a)return x.next=c,r?r[_]=x:t._root=x,t;do{r=r?r[_]=new Array(4):t._root=new Array(4),(u=i>=(s=(y+p)/2))?y=s:p=s,(l=e>=(h=(d+v)/2))?d=h:v=h}while((_=l<<1|u)==(f=(a>=h)<<1|o>=s));return r[f]=c,r[_]=x,t}function e(t,i,e,n,r){this.node=t,this.x0=i,this.y0=e,this.x1=n,this.y1=r}function n(t){return t[0]}function r(t){return t[1]}function s(t,i,e){var s=new h(null==i?n:i,null==e?r:e,NaN,NaN,NaN,NaN);return null==t?s:s.addAll(t)}function h(t,i,e,n,r,s){this._x=t,this._y=i,this._x0=e,this._y0=n,this._x1=r,this._y1=s,this._root=void 0}function o(t){for(var i={data:t.data},e=i;t=t.next;)e=e.next={data:t.data};return i}var a=s.prototype=h.prototype;a.copy=function(){var t,i,e=new h(this._x,this._y,this._x0,this._y0,this._x1,this._y1),n=this._root;if(!n)return e;if(!n.length)return e._root=o(n),e;for(t=[{source:n,target:e._root=new Array(4)}];n=t.pop();)for(var r=0;r<4;++r)(i=n.source[r])&&(i.length?t.push({source:i,target:n.target[r]=new Array(4)}):n.target[r]=o(i));return e},a.add=function(t){const e=+this._x.call(null,t),n=+this._y.call(null,t);return i(this.cover(e,n),e,n,t)},a.addAll=function(t){var e,n,r,s,h=t.length,o=new Array(h),a=new Array(h),u=1/0,l=1/0,_=-1/0,f=-1/0;for(n=0;n<h;++n)isNaN(r=+this._x.call(null,e=t[n]))||isNaN(s=+this._y.call(null,e))||(o[n]=r,a[n]=s,r<u&&(u=r),r>_&&(_=r),s<l&&(l=s),s>f&&(f=s));if(u>_||l>f)return this;for(this.cover(u,l).cover(_,f),n=0;n<h;++n)i(this,o[n],a[n],t[n]);return this},a.cover=function(t,i){if(isNaN(t=+t)||isNaN(i=+i))return this;var e=this._x0,n=this._y0,r=this._x1,s=this._y1;if(isNaN(e))r=(e=Math.floor(t))+1,s=(n=Math.floor(i))+1;else{for(var h,o,a=r-e||1,u=this._root;e>t||t>=r||n>i||i>=s;)switch(o=(i<n)<<1|t<e,(h=new Array(4))[o]=u,u=h,a*=2,o){case 0:r=e+a,s=n+a;break;case 1:e=r-a,s=n+a;break;case 2:r=e+a,n=s-a;break;case 3:e=r-a,n=s-a}this._root&&this._root.length&&(this._root=u)}return this._x0=e,this._y0=n,this._x1=r,this._y1=s,this},a.data=function(){var t=[];return this.visit((function(i){if(!i.length)do{t.push(i.data)}while(i=i.next)})),t},a.extent=function(t){return arguments.length?this.cover(+t[0][0],+t[0][1]).cover(+t[1][0],+t[1][1]):isNaN(this._x0)?void 0:[[this._x0,this._y0],[this._x1,this._y1]]},a.find=function(t,i,n){var r,s,h,o,a,u,l,_=this._x0,f=this._y0,c=this._x1,x=this._y1,y=[],d=this._root;for(d&&y.push(new e(d,_,f,c,x)),null==n?n=1/0:(_=t-n,f=i-n,c=t+n,x=i+n,n*=n);u=y.pop();)if(!(!(d=u.node)||(s=u.x0)>c||(h=u.y0)>x||(o=u.x1)<_||(a=u.y1)<f))if(d.length){var p=(s+o)/2,v=(h+a)/2;y.push(new e(d[3],p,v,o,a),new e(d[2],s,v,p,a),new e(d[1],p,h,o,v),new e(d[0],s,h,p,v)),(l=(i>=v)<<1|t>=p)&&(u=y[y.length-1],y[y.length-1]=y[y.length-1-l],y[y.length-1-l]=u)}else{var w=t-+this._x.call(null,d.data),N=i-+this._y.call(null,d.data),g=w*w+N*N;if(g<n){var A=Math.sqrt(n=g);_=t-A,f=i-A,c=t+A,x=i+A,r=d.data}}return r},a.remove=function(t){if(isNaN(s=+this._x.call(null,t))||isNaN(h=+this._y.call(null,t)))return this;var i,e,n,r,s,h,o,a,u,l,_,f,c=this._root,x=this._x0,y=this._y0,d=this._x1,p=this._y1;if(!c)return this;if(c.length)for(;;){if((u=s>=(o=(x+d)/2))?x=o:d=o,(l=h>=(a=(y+p)/2))?y=a:p=a,i=c,!(c=c[_=l<<1|u]))return this;if(!c.length)break;(i[_+1&3]||i[_+2&3]||i[_+3&3])&&(e=i,f=_)}for(;c.data!==t;)if(n=c,!(c=c.next))return this;return(r=c.next)&&delete c.next,n?(r?n.next=r:delete n.next,this):i?(r?i[_]=r:delete i[_],(c=i[0]||i[1]||i[2]||i[3])&&c===(i[3]||i[2]||i[1]||i[0])&&!c.length&&(e?e[f]=c:this._root=c),this):(this._root=r,this)},a.removeAll=function(t){for(var i=0,e=t.length;i<e;++i)this.remove(t[i]);return this},a.root=function(){return this._root},a.size=function(){var t=0;return this.visit((function(i){if(!i.length)do{++t}while(i=i.next)})),t},a.visit=function(t){var i,n,r,s,h,o,a=[],u=this._root;for(u&&a.push(new e(u,this._x0,this._y0,this._x1,this._y1));i=a.pop();)if(!t(u=i.node,r=i.x0,s=i.y0,h=i.x1,o=i.y1)&&u.length){var l=(r+h)/2,_=(s+o)/2;(n=u[3])&&a.push(new e(n,l,_,h,o)),(n=u[2])&&a.push(new e(n,r,_,l,o)),(n=u[1])&&a.push(new e(n,l,s,h,_)),(n=u[0])&&a.push(new e(n,r,s,l,_))}return this},a.visitAfter=function(t){var i,n=[],r=[];for(this._root&&n.push(new e(this._root,this._x0,this._y0,this._x1,this._y1));i=n.pop();){var s=i.node;if(s.length){var h,o=i.x0,a=i.y0,u=i.x1,l=i.y1,_=(o+u)/2,f=(a+l)/2;(h=s[0])&&n.push(new e(h,o,a,_,f)),(h=s[1])&&n.push(new e(h,_,a,u,f)),(h=s[2])&&n.push(new e(h,o,f,_,l)),(h=s[3])&&n.push(new e(h,_,f,u,l))}r.push(i)}for(;i=r.pop();)t(i.node,i.x0,i.y0,i.x1,i.y1);return this},a.x=function(t){return arguments.length?(this._x=t,this):this._x},a.y=function(t){return arguments.length?(this._y=t,this):this._y},t.quadtree=s,Object.defineProperty(t,"__esModule",{value:!0})}));