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uM{constructor(t,[e,n,r,i]=[0,0,960,500]){if(!((r=+r)>=(e=+e)&&(i=+i)>=(n=+n)))throw new Error("invalid bounds");this.delaunay=t,this._circumcenters=new Float64Array(2*t.points.length),this.vectors=new Float64Array(2*t.points.length),this.xmax=r,this.xmin=e,this.ymax=i,this.ymin=n,this._init()}update(){return this.delaunay.update(),this._init(),this}_init(){const{delaunay:{points:t,hull:e,triangles:n},vectors:r}=this,i=this.circumcenters=this._circumcenters.subarray(0,n.length/3*2);for(let e,r,a=0,u=0,o=n.length;a<o;a+=3,u+=2){const o=2*n[a],s=2*n[a+1],l=2*n[a+2],c=t[o],f=t[o+1],h=t[s],d=t[s+1],p=t[l],g=t[l+1],m=h-c,v=d-f,y=p-c,_=g-f,x=m*m+v*v,b=y*y+_*_,w=2*(m*_-v*y);if(w)if(Math.abs(w)<1e-8)e=(c+p)/2,r=(f+g)/2;else{const t=1/w;e=c+(_*x-v*b)*t,r=f+(m*b-y*x)*t}else e=(c+p)/2-1e8*_,r=(f+g)/2+1e8*y;i[u]=e,i[u+1]=r}let a,u,o,s=e[e.length-1],l=4*s,c=t[2*s],f=t[2*s+1];r.fill(0);for(let 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8:e=9,n=this.xmin,a=this.ymax;break;case 9:e=1;continue;case 1:e=5,n=this.xmin,a=this.ymin}r[i]===n&&r[i+1]===a||!this.contains(t,n,a)||(r.splice(i,0,n,a),i+=2)}if(r.length>4)for(let t=0;t<r.length;t+=2){const e=(t+2)%r.length,n=(t+4)%r.length;(r[t]===r[e]&&r[e]===r[n]||r[t+1]===r[e+1]&&r[e+1]===r[n+1])&&(r.splice(e,2),t-=2)}return i}_project(t,e,n,r){let i,a,u,o=1/0;if(r<0){if(e<=this.ymin)return null;(i=(this.ymin-e)/r)<o&&(u=this.ymin,a=t+(o=i)*n)}else if(r>0){if(e>=this.ymax)return null;(i=(this.ymax-e)/r)<o&&(u=this.ymax,a=t+(o=i)*n)}if(n>0){if(t>=this.xmax)return null;(i=(this.xmax-t)/n)<o&&(a=this.xmax,u=e+(o=i)*r)}else if(n<0){if(t<=this.xmin)return null;(i=(this.xmin-t)/n)<o&&(a=this.xmin,u=e+(o=i)*r)}return[a,u]}_edgecode(t,e){return(t===this.xmin?1:t===this.xmax?2:0)|(e===this.ymin?4:e===this.ymax?8:0)}_regioncode(t,e){return(t<this.xmin?1:t>this.xmax?2:0)|(e<this.ymin?4:e>this.ymax?8:0)}}const oM=2*Math.PI;function sM(t){return t[0]}function lM(t){return t[1]}function cM(t,e,n){return[t+Math.sin(t+e)*n,e+Math.cos(t-e)*n]}class fM{constructor(t){this._delaunator=new Gk(t),this.inedges=new Int32Array(t.length/2),this._hullIndex=new Int32Array(t.length/2),this.points=this._delaunator.coords,this._init()}update(){return this._delaunator.update(),this._init(),this}_init(){const t=this._delaunator,e=this.points;if(t.hull&&t.hull.length>2&&function(t){const{triangles:e,coords:n}=t;for(let t=0;t<e.length;t+=3){const r=2*e[t],i=2*e[t+1],a=2*e[t+2];if((n[a]-n[r])*(n[i+1]-n[r+1])-(n[i]-n[r])*(n[a+1]-n[r+1])>1e-10)return!1}return!0}(t)){this.collinear=Int32Array.from({length:e.length/2},(t,e)=>e).sort((t,n)=>e[2*t]-e[2*n]||e[2*t+1]-e[2*n+1]);const t=this.collinear[0],n=this.collinear[this.collinear.length-1],r=[e[2*t],e[2*t+1],e[2*n],e[2*n+1]],i=1e-8*Math.sqrt((r[3]-r[1])**2+(r[2]-r[0])**2);for(let t=0,n=e.length/2;t<n;++t){const n=cM(e[2*t],e[2*t+1],i);e[2*t]=n[0],e[2*t+1]=n[1]}this._delaunator=new Gk(e)}else delete this.collinear;const n=this.halfedges=this._delaunator.halfedges,r=this.hull=this._delaunator.hull,i=this.triangles=this._delaunator.triangles,a=this.inedges.fill(-1),u=this._hullIndex.fill(-1);for(let t=0,e=n.length;t<e;++t){const e=i[t%3==2?t-2:t+1];-1!==n[t]&&-1!==a[e]||(a[e]=t)}for(let t=0,e=r.length;t<e;++t)u[r[t]]=t;r.length<=2&&r.length>0&&(this.triangles=new Int32Array(3).fill(-1),this.halfedges=new Int32Array(3).fill(-1),this.triangles[0]=r[0],this.triangles[1]=r[1],this.triangles[2]=r[1],a[r[0]]=1,2===r.length&&(a[r[1]]=0))}voronoi(t){return new uM(this,t)}*neighbors(t){const{inedges:e,hull:n,_hullIndex:r,halfedges:i,triangles:a}=this;if(this.collinear){const e=this.collinear.indexOf(t);return e>0&&(yield this.collinear[e-1]),void(e<this.collinear.length-1&&(yield this.collinear[e+1]))}const u=e[t];if(-1===u)return;let o=u,s=-1;do{if(yield s=a[o],o=o%3==2?o-2:o+1,a[o]!==t)return;if(o=i[o],-1===o){const e=n[(r[t]+1)%n.length];return void(e!==s&&(yield 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n&&n.value()}renderHull(t){const e=null==t?t=new iM:void 0,{hull:n,points:r}=this,i=2*n[0],a=n.length;t.moveTo(r[i],r[i+1]);for(let e=1;e<a;++e){const i=2*n[e];t.lineTo(r[i],r[i+1])}return t.closePath(),e&&e.value()}hullPolygon(){const t=new aM;return this.renderHull(t),t.value()}renderTriangle(t,e){const n=null==e?e=new iM:void 0,{points:r,triangles:i}=this,a=2*i[t*=3],u=2*i[t+1],o=2*i[t+2];return e.moveTo(r[a],r[a+1]),e.lineTo(r[u],r[u+1]),e.lineTo(r[o],r[o+1]),e.closePath(),n&&n.value()}*trianglePolygons(){const{triangles:t}=this;for(let e=0,n=t.length/3;e<n;++e)yield this.trianglePolygon(e)}trianglePolygon(t){const e=new aM;return this.renderTriangle(t,e),e.value()}}function hM(t){jr.call(this,null,t)}fM.from=function(t,e=sM,n=lM,r){return new fM("length"in t?function(t,e,n,r){const i=t.length,a=new Float64Array(2*i);for(let u=0;u<i;++u){const i=t[u];a[2*u]=e.call(r,i,u,t),a[2*u+1]=n.call(r,i,u,t)}return a}(t,e,n,r):Float64Array.from(function*(t,e,n,r){let i=0;for(const a of 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t,e,n,r,i,a,u,o=[256,256],s=AM,l=[],c=Math.random,f={};function h(t,e,n){for(var r,i,a,u=e.x,l=e.y,f=Math.sqrt(o[0]*o[0]+o[1]*o[1]),h=s(o),d=c()<.5?1:-1,p=-d;(r=h(p+=d))&&(i=~~r[0],a=~~r[1],!(Math.min(Math.abs(i),Math.abs(a))>=f));)if(e.x=u+i,e.y=l+a,!(e.x+e.x0<0||e.y+e.y0<0||e.x+e.x1>o[0]||e.y+e.y1>o[1])&&(!n||!xM(e,t,o[0]))&&(!n||wM(e,n))){for(var g,m=e.sprite,v=e.width>>5,y=o[0]>>5,_=e.x-(v<<4),x=127&_,b=32-x,w=e.y1-e.y0,A=(e.y+e.y0)*y+(_>>5),k=0;k<w;k++){g=0;for(var M=0;M<=v;M++)t[A+M]|=g<<b|(M<v?(g=m[k*v+M])>>>x:0);A+=y}return e.sprite=null,!0}return!1}return f.layout=function(){for(var s=function(t){t.width=t.height=1;var e=Math.sqrt(t.getContext("2d").getImageData(0,0,1,1).data.length>>2);t.width=2048/e,t.height=2048/e;var n=t.getContext("2d");return n.fillStyle=n.strokeStyle="red",n.textAlign="center",{context:n,ratio:e}}(Wo()),f=function(t){var e=[],n=-1;for(;++n<t;)e[n]=0;return 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