jn_sis_zhfx/public/static/cesium/Workers/createPolylineGeometry.js

/**
 * @license
 * Cesium - https://github.com/CesiumGS/cesium
 * Version 1.110.1
 *
 * Copyright 2011-2022 Cesium Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Columbus View (Pat. Pend.)
 *
 * Portions licensed separately.
 * See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
 */

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l,E=t.red,a=t.green,r=t.blue,w=t.alpha,b=n.red,i=n.green,f=n.blue,L=n.alpha;if(m.equals(t,n)){for(l=0;l<c;l++)s[l]=m.clone(t);return s}let M=(b-E)/c,W=(i-a)/c,z=(f-r)/c,B=(L-w)/c;for(l=0;l<c;l++)s[l]=new m(E+l*M,a+l*W,r+l*z,w+l*B);return s}function q(e){e=A(e,A.EMPTY_OBJECT);let o=e.positions,t=e.colors,n=A(e.width,1),c=A(e.colorsPerVertex,!1);if(!h(o)||o.length<2)throw new V("At least two positions are required.");if(typeof n!="number")throw new V("width must be a number");if(h(t)&&(c&&t.length<o.length||!c&&t.length<o.length-1))throw new V("colors has an invalid length.");this._positions=o,this._colors=t,this._width=n,this._colorsPerVertex=c,this._vertexFormat=k.clone(A(e.vertexFormat,k.DEFAULT)),this._arcType=A(e.arcType,N.GEODESIC),this._granularity=A(e.granularity,J.RADIANS_PER_DEGREE),this._ellipsoid=u.clone(A(e.ellipsoid,u.WGS84)),this._workerName="createPolylineGeometry";let 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d,P;s===N.GEODESIC?(d=J.chordLength(l,E.maximumRadius),P=U.numberOfPoints):(d=l,P=U.numberOfPointsRhumbLine);let G=U.extractHeights(i,E);if(h(n)){let T=1;for(a=0;a<f-1;++a)T+=P(i[a],i[a+1],d);let g=new Array(T),D=0;for(a=0;a<f-1;++a){let Z=i[a],$=i[a+1],I=n[a],ee=P(Z,$,d);if(c&&a<T){let _e=n[a+1],te=Ae(Z,$,I,_e,ee),Pe=te.length;for(r=0;r<Pe;++r)g[D++]=te[r]}else for(r=0;r<ee;++r)g[D++]=m.clone(I)}g[D]=m.clone(n[n.length-1]),n=g,me.length=0}s===N.GEODESIC?i=U.generateCartesianArc({positions:i,minDistance:d,ellipsoid:E,height:G}):i=U.generateCartesianRhumbArc({positions:i,granularity:d,ellipsoid:E,height:G})}f=i.length;let L=f*4-4,M=new Float64Array(L*3),W=new Float64Array(L*3),z=new Float64Array(L*3),B=new Float32Array(L*2),K=t.st?new Float32Array(L*2):void 0,y=h(n)?new Uint8Array(L*4):void 0,H=0,j=0,X=0,Y=0,_;for(r=0;r<f;++r){r===0?(_=pe,p.subtract(i[0],i[1],_),p.add(i[0],_,_)):_=i[r-1],p.clone(_,fe),p.clone(i[r],ae),r===f-1?(_=pe,p.subtract(i[f-1],i[f-2],_),p.add(i[f-1],_,_)):_=i[r+1],p.clone(_,he);let d,P;h(y)&&(r!==0&&!c?d=n[r-1]:d=n[r],r!==f-1&&(P=n[r]));let G=r===0?2:0,T=r===f-1?2:4;for(w=G;w<T;++w){p.pack(ae,M,H),p.pack(fe,W,H),p.pack(he,z,H),H+=3;let g=w-2<0?-1:1;if(B[j++]=2*(w%2)-1,B[j++]=g*o,t.st&&(K[X++]=r/(f-1),K[X++]=Math.max(B[j-2],0)),h(y)){let D=w<2?d:P;y[Y++]=m.floatToByte(D.red),y[Y++]=m.floatToByte(D.green),y[Y++]=m.floatToByte(D.blue),y[Y++]=m.floatToByte(D.alpha)}}}let v=new ce;v.position=new O({componentDatatype:x.DOUBLE,componentsPerAttribute:3,values:M}),v.prevPosition=new O({componentDatatype:x.DOUBLE,componentsPerAttribute:3,values:W}),v.nextPosition=new O({componentDatatype:x.DOUBLE,componentsPerAttribute:3,values:z}),v.expandAndWidth=new O({componentDatatype:x.FLOAT,componentsPerAttribute:2,values:B}),t.st&&(v.st=new 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