sdrangel/plugins/feature/map/Cesium/Workers/createVerticesFromHeightmap.js

define(["./Matrix2-46444433","./AxisAlignedBoundingBox-8f6cec20","./Transforms-ab7258fe","./when-229515d6","./RuntimeError-608565a6","./TerrainEncoding-d4f3205f","./ComponentDatatype-692a36d3","./OrientedBoundingBox-2e56130a","./WebMercatorProjection-aa53f15d","./createTaskProcessorWorker","./combine-35b6d9cb","./AttributeCompression-95366034","./WebGLConstants-f63312fc","./EllipsoidTangentPlane-4deba134","./IntersectionTests-4cf437d5","./Plane-1f2a7880"],(function(e,t,i,a,n,r,s,l,o,f,u,c,d,h,m,g){"use strict";var p=Object.freeze({NONE:0,LERC:1});const x={};x.DEFAULT_STRUCTURE=Object.freeze({heightScale:1,heightOffset:0,elementsPerHeight:1,stride:1,elementMultiplier:256,isBigEndian:!1});const w=new e.Cartesian3,k=new e.Matrix4,y=new e.Cartesian3,I=new e.Cartesian3;x.computeVertices=function(n){const f=Math.cos,u=Math.sin,c=Math.sqrt,d=Math.atan,h=Math.exp,m=s.CesiumMath.PI_OVER_TWO,g=s.CesiumMath.toRadians,p=n.heightmap,b=n.width,U=n.height,T=n.skirtHeight,M=T>0,V=a.defaultValue(n.isGeographic,!0),v=a.defaultValue(n.ellipsoid,e.Ellipsoid.WGS84),A=1/v.maximumRadius,B=e.Rectangle.clone(n.nativeRectangle),D=e.Rectangle.clone(n.rectangle);let S,P,E,C;a.defined(D)?(S=D.west,P=D.south,E=D.east,C=D.north):V?(S=g(B.west),P=g(B.south),E=g(B.east),C=g(B.north)):(S=B.west*A,P=m-2*d(h(-B.south*A)),E=B.east*A,C=m-2*d(h(-B.north*A)));let F=n.relativeToCenter;const N=a.defined(F);F=N?F:e.Cartesian3.ZERO;const O=a.defaultValue(n.includeWebMercatorT,!1),R=a.defaultValue(n.exaggeration,1),L=a.defaultValue(n.exaggerationRelativeHeight,0),z=1!==R,H=a.defaultValue(n.structure,x.DEFAULT_STRUCTURE),_=a.defaultValue(H.heightScale,x.DEFAULT_STRUCTURE.heightScale),Y=a.defaultValue(H.heightOffset,x.DEFAULT_STRUCTURE.heightOffset),W=a.defaultValue(H.elementsPerHeight,x.DEFAULT_STRUCTURE.elementsPerHeight),X=a.defaultValue(H.stride,x.DEFAULT_STRUCTURE.stride),Z=a.defaultValue(H.elementMultiplier,x.DEFAULT_STRUCTURE.elementMultiplier),j=a.defaultValue(H.isBigEndian,x.DEFAULT_STRUCTURE.isBigEndian);let G=e.Rectangle.computeWidth(B),q=e.Rectangle.computeHeight(B);const Q=G/(b-1),J=q/(U-1);V||(G*=A,q*=A);const K=v.radiiSquared,$=K.x,ee=K.y,te=K.z;let ie=65536,ae=-65536;const ne=i.Transforms.eastNorthUpToFixedFrame(F,v),re=e.Matrix4.inverseTransformation(ne,k);let se,le;O&&(se=o.WebMercatorProjection.geodeticLatitudeToMercatorAngle(P),le=1/(o.WebMercatorProjection.geodeticLatitudeToMercatorAngle(C)-se));const oe=y;oe.x=Number.POSITIVE_INFINITY,oe.y=Number.POSITIVE_INFINITY,oe.z=Number.POSITIVE_INFINITY;const fe=I;fe.x=Number.NEGATIVE_INFINITY,fe.y=Number.NEGATIVE_INFINITY,fe.z=Number.NEGATIVE_INFINITY;let ue=Number.POSITIVE_INFINITY;const ce=b*U,de=ce+(T>0?2*b+2*U:0),he=new Array(de),me=new Array(de),ge=new Array(de),pe=O?new Array(de):[],xe=z?new Array(de):[];let we=0,ke=U,ye=0,Ie=b;M&&(--we,++ke,--ye,++Ie);const be=1e-5;for(let t=we;t<ke;++t){let i=t;i<0&&(i=0),i>=U&&(i=U-1);let a=B.north-J*i;a=V?g(a):m-2*d(h(-a*A));let n=(a-P)/(C-P);n=s.CesiumMath.clamp(n,0,1);const r=t===we,l=t===ke-1;T>0&&(r?a+=be*q:l&&(a-=be*q));const x=f(a),k=u(a),y=te*k;let I;O&&(I=(o.WebMercatorProjection.geodeticLatitudeToMercatorAngle(a)-se)*le);for(let t=ye;t<Ie;++t){let a=t;a<0&&(a=0),a>=b&&(a=b-1);const o=i*(b*X)+a*X;let d;if(1===W)d=p[o];else{let e;if(d=0,j)for(e=0;e<W;++e)d=d*Z+p[o+e];else for(e=W-1;e>=0;--e)d=d*Z+p[o+e]}d=d*_+Y,ae=Math.max(ae,d),ie=Math.min(ie,d);let h=B.west+Q*a;V?h=g(h):h*=A;let m=(h-S)/(E-S);m=s.CesiumMath.clamp(m,0,1);let M=i*b+a;if(T>0){const e=t===ye,n=t===Ie-1,s=r||l||e||n;if((r||l)&&(e||n))continue;s&&(d-=T,e?(M=ce+(U-i-1),h-=be*G):l?M=ce+U+(b-a-1):n?(M=ce+U+b+i,h+=be*G):r&&(M=ce+U+b+U+a))}const D=x*f(h),P=x*u(h),C=$*D,F=ee*P,N=1/c(C*D+F*P+y*k),R=C*N,L=F*N,H=y*N,q=new e.Cartesian3;q.x=R+D*d,q.y=L+P*d,q.z=H+k*d,e.Matrix4.multiplyByPoint(re,q,w),e.Cartesian3.minimumByComponent(w,oe,oe),e.Cartesian3.maximumByComponent(w,fe,fe),ue=Math.min(ue,d),he[M]=q,ge[M]=new e.Cartesian2(m,n),me[M]=d,O&&(pe[M]=I),z&&(xe[M]=v.geodeticSurfaceNormal(q))}}const Ue=i.BoundingSphere.fromPoints(he);let Te,Me;if(a.defined(D)&&(Te=l.OrientedBoundingBox.fromRectangle(D,i
/* Copyright 2015-2018 Esri. 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 @preserve */
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