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n=t.modified();if(!(n||e.changed(e.ADD_REM)||function(n){const r=t[n];return Y(r)&&e.modified(r.fields)}("sort")))return;t.size&&2===t.size.length||s("Size parameter should be specified as a [width, height] array.");const r=t.as||RC;return OC(e.materialize(e.SOURCE).source||[],t.size,t.sort,W(null==t.offset?1:t.offset),W(t.anchor||LC),t.avoidMarks||[],!1!==t.avoidBaseMark,t.lineAnchor||"end",t.markIndex||0,void 0===t.padding?0:t.padding,t.method||"naive").forEach((t=>{const e=t.datum;e[r[0]]=t.x,e[r[1]]=t.y,e[r[2]]=t.opacity,e[r[3]]=t.align,e[r[4]]=t.baseline})),e.reflow(n).modifies(r)}});var qC=Object.freeze({__proto__:null,label:UC});function PC(t,e){var n,r,i,o,a,s,u=[],l=function(t){return t(o)};if(null==e)u.push(t);else for(n={},r=0,i=t.length;r<i;++r)o=t[r],(s=n[a=e.map(l)])||(n[a]=s=[],s.dims=a,u.push(s)),s.push(o);return u}function jC(t){La.call(this,null,t)}jC.Definition={type:"Loess",metadata:{generates:!0},params:[{name:"x",type:"field",required:!0},{name:"y",type:"field",required:!0},{name:"groupby",type:"field",array:!0},{name:"bandwidth",type:"number",default:.3},{name:"as",type:"string",array:!0}]},st(jC,La,{transform(t,e){const r=e.fork(e.NO_SOURCE|e.NO_FIELDS);if(!this.value||e.changed()||t.modified()){const i=PC(e.materialize(e.SOURCE).source,t.groupby),o=(t.groupby||[]).map(n),a=o.length,s=t.as||[n(t.x),n(t.y)],u=[];i.forEach((e=>{Ds(e,t.x,t.y,t.bandwidth||.3).forEach((t=>{const n={};for(let t=0;t<a;++t)n[o[t]]=e.dims[t];n[s[0]]=t[0],n[s[1]]=t[1],u.push(sa(n))}))})),this.value&&(r.rem=this.value),this.value=r.add=r.source=u}return r}});const IC={constant:gs,linear:xs,log:bs,exp:ws,pow:ks,quad:Ms,poly:As};function WC(t){La.call(this,null,t)}WC.Definition={type:"Regression",metadata:{generates:!0},params:[{name:"x",type:"field",required:!0},{name:"y",type:"field",required:!0},{name:"groupby",type:"field",array:!0},{name:"method",type:"string",default:"linear",values:Object.keys(IC)},{name:"order",type:"number",default:3},{name:"extent",type:"number",array:!0,length:2},{name:"params",type:"boolean",default:!1},{name:"as",type:"string",array:!0}]},st(WC,La,{transform(t,e){const r=e.fork(e.NO_SOURCE|e.NO_FIELDS);if(!this.value||e.changed()||t.modified()){const i=PC(e.materialize(e.SOURCE).source,t.groupby),o=(t.groupby||[]).map(n),a=t.method||"linear",u=null==t.order?3:t.order,l=((t,e)=>"poly"===t?e:"quad"===t?2:1)(a,u),c=t.as||[n(t.x),n(t.y)],f=IC[a],h=[];let d=t.extent;rt(IC,a)||s("Invalid regression method: "+a),null!=d&&"log"===a&&d[0]<=0&&(e.dataflow.warn("Ignoring extent with values <= 0 for log regression."),d=null),i.forEach((n=>{if(n.length<=l)return void e.dataflow.warn("Skipping 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a=n[t],s=t-t%3;if(o=s+(t+2)%3,-1===a){if(0===i)break;t=nF[--i];continue}const u=a-a%3,l=s+(t+1)%3,c=u+(a+2)%3,f=e[o],h=e[t],d=e[l],p=e[c];if(oF(r[2*f],r[2*f+1],r[2*h],r[2*h+1],r[2*d],r[2*d+1],r[2*p],r[2*p+1])){e[t]=p,e[a]=f;const r=n[c];if(-1===r){let e=this._hullStart;do{if(this._hullTri[e]===c){this._hullTri[e]=t;break}e=this._hullPrev[e]}while(e!==this._hullStart)}this._link(t,r),this._link(a,n[o]),this._link(o,c);const s=u+(a+1)%3;i<nF.length&&(nF[i++]=s)}else{if(0===i)break;t=nF[--i]}}return o}_link(t,e){this._halfedges[t]=e,-1!==e&&(this._halfedges[e]=t)}_addTriangle(t,e,n,r,i,o){const a=this.trianglesLen;return this._triangles[a]=t,this._triangles[a+1]=e,this._triangles[a+2]=n,this._link(a,r),this._link(a+1,i),this._link(a+2,o),this.trianglesLen+=3,a}}function iF(t,e,n,r){const i=t-n,o=e-r;return i*i+o*o}function oF(t,e,n,r,i,o,a,s){const u=t-a,l=e-s,c=n-a,f=r-s,h=i-a,d=o-s,p=c*c+f*f,g=h*h+d*d;return u*(f*g-p*d)-l*(c*g-p*h)+(u*u+l*l)*(c*d-f*h)<0}function aF(t,e,n,r,i,o){const a=n-t,s=r-e,u=i-t,l=o-e,c=a*a+s*s,f=u*u+l*l,h=.5/(a*l-s*u),d=(l*c-s*f)*h,p=(a*f-u*c)*h;return d*d+p*p}function sF(t,e,n,r){if(r-n<=20)for(let i=n+1;i<=r;i++){const r=t[i],o=e[r];let a=i-1;for(;a>=n&&e[t[a]]>o;)t[a+1]=t[a--];t[a+1]=r}else{let i=n+1,o=r;uF(t,n+r>>1,i),e[t[n]]>e[t[r]]&&uF(t,n,r),e[t[i]]>e[t[r]]&&uF(t,i,r),e[t[n]]>e[t[i]]&&uF(t,n,i);const a=t[i],s=e[a];for(;;){do{i++}while(e[t[i]]<s);do{o--}while(e[t[o]]>s);if(o<i)break;uF(t,i,o)}t[n+1]=t[o],t[o]=a,r-i+1>=o-n?(sF(t,e,i,r),sF(t,e,n,o-1)):(sF(t,e,n,o-1),sF(t,e,i,r))}}function uF(t,e,n){const r=t[e];t[e]=t[n],t[n]=r}function lF(t){return t[0]}function cF(t){return t[1]}const fF=1e-6;class hF{constructor(){this._x0=this._y0=this._x1=this._y1=null,this._=""}moveTo(t,e){this._+=`M${this._x0=this._x1=+t},${this._y0=this._y1=+e}`}closePath(){null!==this._x1&&(this._x1=this._x0,this._y1=this._y0,this._+="Z")}lineTo(t,e){this._+=`L${this._x1=+t},${this._y1=+e}`}arc(t,e,n){const r=(t=+t)+(n=+n),i=e=+e;if(n<0)throw new Error("negative radius");null===this._x1?this._+=`M${r},${i}`:(Math.abs(this._x1-r)>fF||Math.abs(this._y1-i)>fF)&&(this._+="L"+r+","+i),n&&(this._+=`A${n},${n},0,1,1,${t-n},${e}A${n},${n},0,1,1,${this._x1=r},${this._y1=i}`)}rect(t,e,n,r){this._+=`M${this._x0=this._x1=+t},${this._y0=this._y1=+e}h${+n}v${+r}h${-n}Z`}value(){return this._||null}}class dF{constructor(){this._=[]}moveTo(t,e){this._.push([t,e])}closePath(){this._.push(this._[0].slice())}lineTo(t,e){this._.push([t,e])}value(){return this._.length?this._:null}}let pF=class{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;let i,o;const a=this.circumcenters=this._circumcenters.subarray(0,n.length/3*2);for(let r,s,u=0,l=0,c=n.length;u<c;u+=3,l+=2){const c=2*n[u],f=2*n[u+1],h=2*n[u+2],d=t[c],p=t[c+1],g=t[f],m=t[f+1],y=t[h],v=t[h+1],_=g-d,x=m-p,b=y-d,w=v-p,k=2*(_*w-x*b);if(Math.abs(k)<1e-9){if(void 0===i){i=o=0;for(const n of e)i+=t[2*n],o+=t[2*n+1];i/=e.length,o/=e.length}const n=1e9*Math.sign((i-d)*w-(o-p)*b);r=(d+y)/2-n*w,s=(p+v)/2+n*b}else{const t=1/k,e=_*_+x*x,n=b*b+w*w;r=d+(w*e-x*n)*t,s=p+(_*n-b*e)*t}a[l]=r,a[l+1]=s}let s,u,l,c=e[e.length-1],f=4*c,h=t[2*c],d=t[2*c+1];r.fill(0);for(let n=0;n<e.length;++n)c=e[n],s=f,u=h,l=d,f=4*c,h=t[2*c],d=t[2*c+1],r[s+2]=r[f]=l-d,r[s+3]=r[f+1]=h-u}render(t){const e=null==t?t=new hF:void 0,{delaunay:{halfedges:n,inedges:r,hull:i},circumcenters:o,vectors:a}=this;if(i.length<=1)return null;for(let e=0,r=n.length;e<r;++e){const r=n[e];if(r<e)continue;const i=2*Math.floor(e/3),a=2*Math.floor(r/3),s=o[i],u=o[i+1],l=o[a],c=o[a+1];this._renderSegment(s,u,l,c,t)}let s,u=i[i.length-1];for(let e=0;e<i.length;++e){s=u,u=i[e];const n=2*Math.floor(r[u]/3),l=o[n],c=o[n+1],f=4*s,h=this._project(l,c,a[f+2],a[f+3]);h&&this._renderSegment(l,c,h[0],h[1],t)}return e&&e.value()}renderBounds(t){const e=null==t?t=new hF:void 0;return t.rect(this.xmin,this.ymin,this.xmax-this.xmin,this.ymax-this.ymin),e&&e.value()}renderCell(t,e){const n=null==e?e=new hF:void 0,r=this._clip(t);if(null===r||!r.length)return;e.moveTo(r[0],r[1]);let i=r.length;for(;r[0]===r[i-2]&&r[1]===r[i-1]&&i>1;)i-=2;for(let t=2;t<i;t+=2)r[t]===r[t-2]&&r[t+1]===r[t-1]||e.lineTo(r[t],r[t+1]);return e.closePath(),n&&n.value()}*cellPolygons(){const{delaunay:{points:t}}=this;for(let e=0,n=t.length/2;e<n;++e){const t=this.cellPolygon(e);t&&(t.index=e,yield t)}}cellPolygon(t){const e=new dF;return this.renderCell(t,e),e.value()}_renderSegment(t,e,n,r,i){let o;const a=this._regioncode(t,e),s=this._regioncode(n,r);0===a&&0===s?(i.moveTo(t,e),i.lineTo(n,r)):(o=this._clipSegment(t,e,n,r,a,s))&&(i.moveTo(o[0],o[1]),i.lineTo(o[2],o[3]))}contains(t,e,n){return(e=+e)==e&&(n=+n)==n&&this.delaunay._step(t,e,n)===t}*neighbors(t){const e=this._clip(t);if(e)for(const n of this.delaunay.neighbors(t)){const t=this._clip(n);if(t)t:for(let r=0,i=e.length;r<i;r+=2)for(let o=0,a=t.length;o<a;o+=2)if(e[r]===t[o]&&e[r+1]===t[o+1]&&e[(r+2)%i]===t[(o+a-2)%a]&&e[(r+3)%i]===t[(o+a-1)%a]){yield n;break t}}}_cell(t){const{circumcenters:e,delaunay:{inedges:n,halfedges:r,triangles:i}}=this,o=n[t];if(-1===o)return null;const a=[];let s=o;do{const n=Math.floor(s/3);if(a.push(e[2*n],e[2*n+1]),s=s%3==2?s-2:s+1,i[s]!==t)break;s=r[s]}while(s!==o&&-1!==s);return a}_clip(t){if(0===t&&1===this.delaunay.hull.length)return[this.xmax,this.ymin,this.xmax,this.ymax,this.xmin,this.ymax,this.xmin,this.ymin];const e=this._cell(t);if(null===e)return null;const{vectors:n}=this,r=4*t;return this._simplify(n[r]||n[r+1]?this._clipInfinite(t,e,n[r],n[r+1],n[r+2],n[r+3]):this._clipFinite(t,e))}_clipFinite(t,e){const n=e.length;let r,i,o,a,s=null,u=e[n-2],l=e[n-1],c=this._regioncode(u,l),f=0;for(let h=0;h<n;h+=2)if(r=u,i=l,u=e[h],l=e[h+1],o=c,c=this._regioncode(u,l),0===o&&0===c)a=f,f=0,s?s.push(u,l):s=[u,l];else{let e,n,h,d,p;if(0===o){if(null===(e=this._clipSegment(r,i,u,l,o,c)))continue;[n,h,d,p]=e}else{if(null===(e=this._clipSegment(u,l,r,i,c,o)))continue;[d,p,n,h]=e,a=f,f=this._edgecode(n,h),a&&f&&this._edge(t,a,f,s,s.length),s?s.push(n,h):s=[n,h]}a=f,f=this._edgecode(d,p),a&&f&&this._edge(t,a,f,s,s.length),s?s.push(d,p):s=[d,p]}if(s)a=f,f=this._edgecode(s[0],s[1]),a&&f&&this._edge(t,a,f,s,s.length);else if(this.contains(t,(this.xmin+this.xmax)/2,(this.ymin+this.ymax)/2))return[this.xmax,this.ymin,this.xmax,this.ymax,this.xmin,this.ymax,this.xmin,this.ymin];return s}_clipSegment(t,e,n,r,i,o){const a=i<o;for(a&&([t,e,n,r,i,o]=[n,r,t,e,o,i]);;){if(0===i&&0===o)return a?[n,r,t,e]:[t,e,n,r];if(i&o)return null;let s,u,l=i||o;8&l?(s=t+(n-t)*(this.ymax-e)/(r-e),u=this.ymax):4&l?(s=t+(n-t)*(this.ymin-e)/(r-e),u=this.ymin):2&l?(u=e+(r-e)*(this.xmax-t)/(n-t),s=this.xmax):(u=e+(r-e)*(this.xmin-t)/(n-t),s=this.xmin),i?(t=s,e=u,i=this._regioncode(t,e)):(n=s,r=u,o=this._regioncode(n,r))}}_clipInfinite(t,e,n,r,i,o){let a,s=Array.from(e);if((a=this._project(s[0],s[1],n,r))&&s.unshift(a[0],a[1]),(a=this._project(s[s.length-2],s[s.length-1],i,o))&&s.push(a[0],a[1]),s=this._clipFinite(t,s))for(let e,n=0,r=s.length,i=this._edgecode(s[r-2],s[r-1]);n<r;n+=2)e=i,i=this._edgecode(s[n],s[n+1]),e&&i&&(n=this._edge(t,e,i,s,n),r=s.length);else this.contains(t,(this.xmin+this.xmax)/2,(this.ymin+this.ymax)/2)&&(s=[this.xmin,this.ymin,this.xmax,this.ymin,this.xmax,this.ymax,this.xmin,this.ymax]);return s}_edge(t,e,n,r,i){for(;e!==n;){let n,o;switch(e){case 5:e=4;continue;case 4:e=6,n=this.xmax,o=this.ymin;break;case 6:e=2;continue;case 2:e=10,n=this.xmax,o=this.ymax;break;case 10:e=8;continue;case 8:e=9,n=this.xmin,o=this.ymax;break;case 9:e=1;continue;case 1:e=5,n=this.xmin,o=this.ymin}r[i]===n&&r[i+1]===o||!this.contains(t,n,o)||(r.splice(i,0,n,o),i+=2)}return i}_project(t,e,n,r){let i,o,a,s=1/0;if(r<0){if(e<=this.ymin)return null;(i=(this.ymin-e)/r)<s&&(a=this.ymin,o=t+(s=i)*n)}else if(r>0){if(e>=this.ymax)return null;(i=(this.ymax-e)/r)<s&&(a=this.ymax,o=t+(s=i)*n)}if(n>0){if(t>=this.xmax)return null;(i=(this.xmax-t)/n)<s&&(o=this.xmax,a=e+(s=i)*r)}else if(n<0){if(t<=this.xmin)return null;(i=(this.xmin-t)/n)<s&&(o=this.xmin,a=e+(s=i)*r)}return[o,a]}_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)}_simplify(t){if(t&&t.length>4){for(let e=0;e<t.length;e+=2){const n=(e+2)%t.length,r=(e+4)%t.length;(t[e]===t[n]&&t[n]===t[r]||t[e+1]===t[n+1]&&t[n+1]===t[r+1])&&(t.splice(n,2),e-=2)}t.length||(t=null)}return t}};const gF=2*Math.PI,mF=Math.pow;function yF(t){return t[0]}function vF(t){return t[1]}function _F(t,e,n){return[t+Math.sin(t+e)*n,e+Math.cos(t-e)*n]}class xF{static from(t,e=yF,n=vF,r){return new xF("length"in t?function(t,e,n,r){const i=t.length,o=new Float64Array(2*i);for(let a=0;a<i;++a){const i=t[a];o[2*a]=e.call(r,i,a,t),o[2*a+1]=n.call(r,i,a,t)}return o}(t,e,n,r):Float64Array.from(function*(t,e,n,r){let i=0;for(const o of t)yield e.call(r,o,i,t),yield n.call(r,o,i,t),++i}(t,e,n,r)))}constructor(t){this._delaunator=new rF(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],o=2*e[t+2];if((n[o]-n[r])*(n[i+1]-n[r+1])-(n[i]-n[r])*(n[o+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.hypot(r[3]-r[1],r[2]-r[0]);for(let t=0,n=e.length/2;t<n;++t){const n=_F(e[2*t],e[2*t+1],i);e[2*t]=n[0],e[2*t+1]=n[1]}this._delaunator=new rF(e)}else delete this.collinear;const n=this.halfedges=this._delaunator.halfedges,r=this.hull=this._delaunator.hull,i=this.triangles=this._delaunator.triangles,o=this.inedges.fill(-1),a=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!==o[e]||(o[e]=t)}for(let t=0,e=r.length;t<e;++t)a[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],o[r[0]]=1,2===r.length&&(o[r[1]]=0,this.triangles[1]=r[1],this.triangles[2]=r[1]))}voronoi(t){return new pF(this,t)}*neighbors(t){const{inedges:e,hull:n,_hullIndex:r,halfedges:i,triangles:o,collinear:a}=this;if(a){const e=a.indexOf(t);return e>0&&(yield a[e-1]),void(e<a.length-1&&(yield a[e+1]))}const s=e[t];if(-1===s)return;let u=s,l=-1;do{if(yield l=o[u],u=u%3==2?u-2:u+1,o[u]!==t)return;if(u=i[u],-1===u){const e=n[(r[t]+1)%n.length];return void(e!==l&&(yield e))}}while(u!==s)}find(t,e,n=0){if((t=+t)!=t||(e=+e)!=e)return-1;const r=n;let i;for(;(i=this._step(n,t,e))>=0&&i!==n&&i!==r;)n=i;return i}_step(t,e,n){const{inedges:r,hull:i,_hullIndex:o,halfedges:a,triangles:s,points:u}=this;if(-1===r[t]||!u.length)return(t+1)%(u.length>>1);let l=t,c=mF(e-u[2*t],2)+mF(n-u[2*t+1],2);const f=r[t];let h=f;do{let r=s[h];const 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