https://renderpub.com/_app/immutable/chunks/CbghLMiV.js

1import{Loader as H,FileLoader as q,BufferGeometry as Y,Float32BufferAttribute as G,BufferAttribute as k}from"./CH7_noy2.js";import{a as W}from"./CxI0cRt4.js";class Q extends H{constructor(E){super(E)}load(E,V,v,_){const U=this,j=new q(U.manager);j.setPath(U.path),j.setResponseType("arraybuffer"),j.setRequestHeader(U.requestHeader),j.setWithCredentials(U.withCredentials),j.load(E,function(z){try{V(U.parse(z))}catch(B){_?_(B):console.error(B),U.manager.itemError(E)}},v,_)}parse(E){function V(T){const F=[],S=[],w=[],C=[];let d;const D=/^[^\d.\s-]+/,N=/(\-?\d+\.?[\d\-\+e]*)\s+(\-?\d+\.?[\d\-\+e]*)\s+(\-?\d+\.?[\d\-\+e]*)/g,m=/^(\d+)\s+([\s\d]*)/,x=/^POINTS /,e=/^POLYGONS /,i=/^TRIANGLE_STRIPS /,s=/^POINT_DATA[ ]+(\d+)/,n=/^CELL_DATA[ ]+(\d+)/,t=/^COLOR_SCALARS[ ]+(\w+)[ ]+3/,a=/^NORMALS[ ]+(\w+)[ ]+(\w+)/;let r=!1,p=!1,l=!1,o=!1,I=!1,A=!1,b=!1;const P=T.split(`
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2+/";for(let A=0,b=n.length;A<b;++A)s[n.charCodeAt(A)]=A;s[45]=62,s[95]=63;const t=e.length;if(t%4>0)throw new Error("Invalid string. Length must be a multiple of 4");const a=e[t-2]==="="?2:e[t-1]==="="?1:0,r=new i(t*3/4-a),p=a>0?t-4:t;let l=0,o,I;for(o=0,I=0;o<p;o+=4,I+=3){const A=s[e.charCodeAt(o)]<<18|s[e.charCodeAt(o+1)]<<12|s[e.charCodeAt(o+2)]<<6|s[e.charCodeAt(o+3)];r[l++]=(A&16711680)>>16,r[l++]=(A&65280)>>8,r[l++]=A&255}if(a===2){const A=s[e.charCodeAt(o)]<<2|s[e.charCodeAt(o+1)]>>4;r[l++]=A&255}else if(a===1){const A=s[e.charCodeAt(o)]<<10|s[e.charCodeAt(o+1)]<<4|s[e.charCodeAt(o+2)]>>2;r[l++]=A>>8&255,r[l++]=A&255}return r}function w(e,i){let s=0;D.attributes.header_type==="UInt64"?s=8:D.attributes.header_type==="UInt32"&&(s=4);let n,t;if(e.attributes.format==="binary"&&i){e.attributes.type==="Float32"?n=new Float32Array:(e.attributes.type==="Int32"||e.attributes.type==="Int64")&&(n=new Int32Array);const a=e["#text"],r=Array.isArray(a)?a[0]:a,p=S(r),l=8;let o=p[0];for(let y=1;y<s-1;y++)o=o|p[y]<<y*l;let I=(o+3)*s;const A=I%3>0?3-I%3:0;I=I+A;const b=[];let P=I;b.push(P);const g=3*s;for(let y=0;y<o;y++){let f=p[y*s+g];for(let c=1;c<s-1;c++)f=f|p[y*s+g+c]<<c*l;P=P+f,b.push(P)}for(let y=0;y<b.length-1;y++)t=W(p.slice(b[y],b[y+1])).buffer,e.attributes.type==="Float32"?(t=new Float32Array(t),n=_(n,t)):(e.attributes.type==="Int32"||e.attributes.type==="Int64")&&(t=new Int32Array(t),n=U(n,t));delete e["#text"],e.attributes.type==="Int64"&&e.attributes.format==="binary"&&(n=n.filter(function(y,f){if(f%2!==1)return!0}))}else e.attributes.format==="binary"&&!i?(t=S(e["#text"]),t=t.slice(s).buffer):e["#text"]?t=e["#text"].split(/\s+/).filter(function(a){if(a!=="")return a}):t=new Int32Array(0).buffer,delete e["#text"],e.attributes.type==="Float32"?n=new Float32Array(t):e.attributes.type==="Int32"?n=new Int32Array(t):e.attributes.type==="Int64"&&(n=new Int32Array(t),e.attributes.format==="binary"&&(n=n.filter(function(a,r){if(r%2!==1)return!0})));return n}const d=new DOMParser().parseFromString(T,"application/xml").documentElement,D=F(d);let N=[],m=[],x=[];if(D.PolyData){const e=D.PolyData.Piece,i=D.attributes.hasOwnProperty("compressor"),s=["PointData","Points","Strips","Polys"];let n=0;const t=s.length;for(;n<t;){const r=e[s[n]];if(r&&r.DataArray){let p;Array.isArray(r.DataArray)?p=r.DataArray:p=[r.DataArray];let l=0;const o=p.length;for(;l<o;)"#text"in p[l]&&p[l]["#text"].length>0&&(p[l].text=w(p[l],i)),l++;switch(s[n]){case"PointData":{const I=parseInt(e.attributes.NumberOfPoints),A=r.attributes.Normals;if(I>0){for(let b=0,P=p.length;b<P;b++)if(A===p[b].attributes.Name){const g=p[b].attributes.NumberOfComponents;m=new Float32Array(I*g),m.set(p[b].text,0)}}}break;case"Points":{const I=parseInt(e.attributes.NumberOfPoints);if(I>0){const A=r.DataArray.attributes.NumberOfComponents;N=new Float32Array(I*A),N.set(r.DataArray.text,0)}}break;case"Strips":{const I=parseInt(e.attributes.NumberOfStrips);if(I>0){const A=new Int32Array(r.DataArray[0].text.length),b=new Int32Array(r.DataArray[1].text.length);A.set(r.DataArray[0].text,0),b.set(r.DataArray[1].text,0);const P=I+A.length;x=new Uint32Array(3*P-9*I);let g=0;for(let y=0,f=I;y<f;y++){const c=[];for(let u=0,h=b[y],O=0;u<h-O;u++)c.push(A[u]),y>0&&(O=b[y-1]);for(let u=0,h=b[y],O=0;u<h-O-2;u++)u%2?(x[g++]=c[u],x[g++]=c[u+2],x[g++]=c[u+1]):(x[g++]=c[u],x[g++]=c[u+1],x[g++]=c[u+2]),y>0&&(O=b[y-1])}}}break;case"Polys":{const I=parseInt(e.attributes.NumberOfPolys);if(I>0){const A=new Int32Array(r.DataArray[0].text.length),b=new Int32Array(r.DataArray[1].text.length);A.set(r.DataArray[0].text,0),b.set(r.DataArray[1].text,0);const P=I+A.length;x=new Uint32Array(3*P-9*I);let g=0,y=0,f=0,c=0;const u=I;for(;f<u;){const h=[];let O=0;const R=b[f];for(;O<R-c;)h.push(A[y++]),O++;let L=1;for(;L<R-c-1;)x[g++]=h[0],x[g++]=h[L],x[g++]=h[L+1],L++;f++,c=b[f-1]}}}break}}n++}const a=new Y;return a.setIndex(new k(x,1)),a.setAttribute("position",new k(N,3)),m.length===N.length&&a.setAttribute("normal",new k(m,3)),a}else throw new Error("Unsupported DATASET type")}const z=new TextDecoder,B=z.decode(new Uint8Array(E,0,250)).split(`
3`);return B[0].indexOf("xml")!==-1?j(z.decode(E)):B[2].includes("ASCII")?V(z.decode(E)):v(E)}}export{Q as VTKLoader};