nyyzt/public/gdsdk/resources/Workers/TerrainEncoding-07bc9dac.js

/**
 * @license
 * Cesium - https://github.com/CesiumGS/cesium
 * Version 1.99
 *
 * 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.
 */
define(["exports","./Transforms-3ea76111","./Matrix3-edb29a7e","./defaultValue-135942ca","./Matrix2-7a2bab7e","./AttributeCompression-5b18be52","./ComponentDatatype-e86a9f87","./Math-a304e2d6"],(function(t,e,i,a,o,r,n,s){"use strict";function c(t,e){this._ellipsoid=t,this._cameraPosition=new i.Cartesian3,this._cameraPositionInScaledSpace=new i.Cartesian3,this._distanceToLimbInScaledSpaceSquared=0,a.defined(e)&&(this.cameraPosition=e)}Object.defineProperties(c.prototype,{ellipsoid:{get:function(){return this._ellipsoid}},cameraPosition:{get:function(){return this._cameraPosition},set:function(t){const e=this._ellipsoid.transformPositionToScaledSpace(t,this._cameraPositionInScaledSpace),a=i.Cartesian3.magnitudeSquared(e)-1;i.Cartesian3.clone(t,this._cameraPosition),this._cameraPositionInScaledSpace=e,this._distanceToLimbInScaledSpaceSquared=a}}});const u=new i.Cartesian3;c.prototype.isPointVisible=function(t){return C(this._ellipsoid.transformPositionToScaledSpace(t,u),this._cameraPositionInScaledSpace,this._distanceToLimbInScaledSpaceSquared)},c.prototype.isScaledSpacePointVisible=function(t){return C(t,this._cameraPositionInScaledSpace,this._distanceToLimbInScaledSpaceSquared)};const d=new i.Cartesian3;c.prototype.isScaledSpacePointVisiblePossiblyUnderEllipsoid=function(t,e){const i=this._ellipsoid;let o,r;return a.defined(e)&&e<0&&i.minimumRadius>-e?(r=d,r.x=this._cameraPosition.x/(i.radii.x+e),r.y=this._cameraPosition.y/(i.radii.y+e),r.z=this._cameraPosition.z/(i.radii.z+e),o=r.x*r.x+r.y*r.y+r.z*r.z-1):(r=this._cameraPositionInScaledSpace,o=this._distanceToLimbInScaledSpaceSquared),C(t,r,o)},c.prototype.computeHorizonCullingPoint=function(t,e,i){return p(this._ellipsoid,t,e,i)};const l=i.Ellipsoid.clone(i.Ellipsoid.UNIT_SPHERE);c.prototype.computeHorizonCullingPointPossiblyUnderEllipsoid=function(t,e,i,a){return p(f(this._ellipsoid,i,l),t,e,a)},c.prototype.computeHorizonCullingPointFromVertices=function(t,e,i,a,o){return S(this._ellipsoid,t,e,i,a,o)},c.prototype.computeHorizonCullingPointFromVerticesPossiblyUnderEllipsoid=function(t,e,i,a,o,r){return S(f(this._ellipsoid,o,l),t,e,i,a,r)};const m=[];c.prototype.computeHorizonCullingPointFromRectangle=function(t,a,r){const n=o.Rectangle.subsample(t,a,0,m),s=e.BoundingSphere.fromPoints(n);if(!(i.Cartesian3.magnitude(s.center)<.1*a.minimumRadius))return this.computeHorizonCullingPoint(s.center,n,r)};const h=new i.Cartesian3;function f(t,e,o){if(a.defined(e)&&e<0&&t.minimumRadius>-e){const a=i.Cartesian3.fromElements(t.radii.x+e,t.radii.y+e,t.radii.z+e,h);t=i.Ellipsoid.fromCartesian3(a,o)}return t}function p(t,e,o,r){a.defined(r)||(r=new i.Cartesian3);const n=T(t,e);let s=0;for(let e=0,i=o.length;e<i;++e){const i=N(t,o[e],n);if(i<0)return;s=Math.max(s,i)}return M(n,s,r)}const x=new i.Cartesian3;function S(t,e,o,r,n,s){a.defined(s)||(s=new i.Cartesian3),r=a.defaultValue(r,3),n=a.defaultValue(n,i.Cartesian3.ZERO);const c=T(t,e);let u=0;for(let e=0,i=o.length;e<i;e+=r){x.x=o[e]+n.x,x.y=o[e+1]+n.y,x.z=o[e+2]+n.z;const i=N(t,x,c);if(i<0)return;u=Math.max(u,i)}return M(c,u,s)}function C(t,e,a){const o=e,r=a,n=i.Cartesian3.subtract(t,o,u),s=-i.Cartesian3.dot(n,o);return!(r<0?s>0:s>r&&s*s/i.Cartesian3.magnitudeSquared(n)>r)}const g=new i.Cartesian3,y=new i.Cartesian3;function N(t,e,a){const o=t.transformPositionToScaledSpace(e,g);let r=i.Cartesian3.magnitudeSquared(o),n=Math.sqrt(r);const s=i.Cartesian3.divideByScalar(o,n,y);r=Math.max(1,r),n=Math.max(1,n);const c=1/n;return 1/(i.Cartesian3.dot(s,a)*c-i.Cartesian3.magnitude(i.Cartesian3.cross(s,a,s))*(Math.sqrt(r-1)*c))}function M(t,e,a){if(!(e<=0||e===1/0||e!=e))return i.Cartesian3.multiplyByScalar(t,e,a)}const b=new i.Cartesian3;function T(t,e){return i.Cartesian3.equals(e,i.Cartesian3.ZERO)?e:(t.transformPositionToScaledSpace(e,b),i.Cartesian3.normalize(b,b))}const P={getHeight:function(t,e,i){return(t-i)*e+i}},z=new i.Cartesian3;P.getPosition=function(t,e,a,o,r){const n=e.cartesianToCartographic(t,z),s=P.getHeight(n.height,a,o);return i.Cartesian3.fromRadians(n.longitude,n.latitude,s,e,r)};var _=P;var E=Object.freeze({NONE:0,BITS12:1});const H=new i.Cartesian3,w=new i.Cartesian3,A=new o.Cartesian2,I=new o.Matrix4,V=new o.Matrix4,q=Math.pow(2,12);function G(t,e,r,n,s,c,u,d,l,m){let h,f,p=E.NONE;if(a.defined(e)&&a.defined(r)&&a.defined(n)&&a.defined(s)){const t=e.minimum,a=e.maximum,c=i.Cartesian3.subtract(a,t,w),u=n-r;p=Math.max(i.Cartesian3.maximumComponent(c),u)<q-1?E.BITS12:E.NONE,h=o.Matrix4.inverseTransformation(s,new o.Matrix4);const d=i.Cartesian3.negate(t,H);o.Matrix4.multiply(o.Matrix4.fromTranslation(d,I),h,h);const l=H;l.x=1/c.x,l.y=1/c.y,l.z=1/c.z,o.Matrix4.multiply(o.Matrix4.fromScale(l,I),h,h),f=o.Matrix4.clone(s),o.Matrix4.setTranslation(f,i.Cartesian3.ZERO,f),s=o.Matrix4.clone(s,new o.Matrix4);const m=o.Matrix4.fromTranslation(t,I),x=o.Matrix4.fromScale(c,V),S=o.Matrix4.multiply(m,x,I);o.Matrix4.multiply(s,S,s),o.Matrix4.multiply(f,S,f)}this.quantization=p,this.minimumHeight=r,this.maximumHeight=n,this.center=i.Cartesian3.clone(t),this.toScaledENU=h,this.fromScaledENU=s,this.matrix=f,this.hasVertexNormals=c,this.hasWebMercatorT=a.defaultValue(u,!1),this.hasGeodeticSurfaceNormals=a.defaultValue(d,!1),this.exaggeration=a.defaultValue(l,1),this.exaggerationRelativeHeight=a.defaultValue(m,0),this.stride=0,this._offsetGeodeticSurfaceNormal=0,this._offsetVertexNormal=0,this._calculateStrideAndOffsets()}G.prototype.encode=function(t,e,a,n,c,u,d,l){const m=n.x,h=n.y;if(this.quantization===E.BITS12){(a=o.Matrix4.multiplyByPoint(this.toScaledENU,a,H)).x=s.CesiumMath.clamp(a.x,0,1),a.y=s.CesiumMath.clamp(a.y,0,1),a.z=s.CesiumMath.clamp(a.z,0,1);const i=this.maximumHeight-this.minimumHeight,n=s.CesiumMath.clamp((c-this.minimumHeight)/i,0,1);o.Cartesian2.fromElements(a.x,a.y,A);const u=r.AttributeCompression.compressTextureCoordinates(A);o.Cartesian2.fromElements(a.z,n,A);const l=r.AttributeCompression.compressTextureCoordinates(A);o.Cartesian2.fromElements(m,h,A);const f=r.AttributeCompression.compressTextureCoordinates(A);if(t[e++]=u,t[e++]=l,t[e++]=f,this.hasWebMercatorT){o.Cartesian2.fromElements(d,0,A);const i=r.AttributeCompression.compressTextureCoordinates(A);t[e++]=i}}else i.Cartesian3.subtract(a,this.center,H),t[e++]=H.x,t[e++]=H.y,t[e++]=H.z,t[e++]=c,t[e++]=m,t[e++]=h,this.hasWebMercatorT&&(t[e++]=d);return this.hasVertexNormals&&(t[e++]=r.AttributeCompression.octPackFloat(u)),this.hasGeodeticSurfaceNormals&&(t[e++]=l.x,t[e++]=l.y,t[e++]=l.z),e};const O=new i.Cartesian3,B=new i.Cartesian3;G.prototype.addGeodeticSurfaceNormals=function(t,e,i){if(this.hasGeodeticSurfaceNormals)return;const a=this.stride,o=t.length/a;this.hasGeodeticSurfaceNormals=!0,this._calculateStrideAndOffsets();const r=this.stride;for(let n=0;n<o;n++){for(let i=0;i<a;i++){const o=n*a+i;e[n*r+i]=t[o]}const o=this.decodePosition(e,n,O),s=i.geodeticSurfaceNormal(o,B),c=n*r+this._offsetGeodeticSurfaceNormal;e[c]=s.x,e[c+1]=s.y,e[c+2]=s.z}},G.prototype.removeGeodeticSurfaceNormals=function(t,e){if(!this.hasGeodeticSurfaceNormals)return;const i=this.stride,a=t.length/i;this.hasGeodeticSurfaceNormals=!1,this._calculateStrideAndOffsets();const o=this.stride;for(let r=0;r<a;r++)for(let a=0;a<o;a++){const n=r*i+a;e[r*o+a]=t[n]}},G.prototype.decodePosition=function(t,e,n){if(a.defined(n)||(n=new i.Cartesian3),e*=this.stride,this.quantization===E.BITS12){const i=r.AttributeCompression.decompressTextureCoordinates(t[e],A);n.x=i.x,n.y=i.y;const a=r.AttributeCompression.decompressTextureCoordinates(t[e+1],A);return n.z=a.x,o.Matrix4.multiplyByPoint(this.fromScaledENU,n,n)}return n.x=t[e],n.y=t[e+1],n.z=t[e+2],i.Cartesian3.add(n,this.center,n)},G.prototype.getExaggeratedPosition=function(t,e,i){i=this.decodePosition(t,e,i);const a=this.exaggeration,o=this.exaggerationRelativeHeight;if(1!==a&&this.hasGeodeticSurfaceNormals){const r=this.decodeGeodeticSurfaceNormal(t,e,B),n=this.decodeHeight(t,e),s=_.getHeight(n,a,o)-n;i.x+=r.x*s,i.y+=r.y*s,i.z+=r.z*s}return i},G.prototype.decodeTextureCoordinates=function(t,e,i){return a.defined(i)||(i=new o.Cartesian2),e*=this.stride,this.quantization===E.BITS12?r.AttributeCompression.decompressTextureCoordinates(t[e+2],i):o.Cartesian2.fromElements(t[e+4],t[e+5],i)},G.prototype.decodeHeight=function(t,e){if(e*=this.stride,this.quantization===E.BITS12){return r.AttributeCompression.decompressTextureCoordinates(t[e+1],A).y*(this.maximumHeight-this.minimumHeight)+this.minimumHeight}return t[e+3]},G.prototype.decodeWebMercatorT=function(t,e){return e*=this.stride,this.quantization===E.BITS12?r.AttributeCompression.decompressTextureCoordinates(t[e+3],A).x:t[e+6]},G.prototype.getOctEncodedNormal=function(t,e,i){const a=t[e=e*this.stride+this._offsetVertexNormal]/256,r=Math.floor(a),n=256*(a-r);return o.Cartesian2.fromElements(r,n,i)},G.prototype.decodeGeodeticSurfaceNormal=function(t,e,i){return e=e*this.stride+this._offsetGeodeticSurfaceNormal,i.x=t[e],i.y=t[e+1],i.z=t[e+2],i},G.prototype._calculateStrideAndOffsets=function(){let t=0;if(this.quantization===E.BITS12)t+=3;else t+=6;this.hasWebMercatorT&&(t+=1),this.hasVertexNormals&&(this._offsetVertexNormal=t,t+=1),this.hasGeodeticSurfaceNormals&&(this._offsetGeodeticSurfaceNormal=t,t+=3),this.stride=t};const R={position3DAndHeight:0,textureCoordAndEncodedNormals:1,geodeticSurfaceNormal:2},U={compressed0:0,compressed1:1,geodeticSurfaceNormal:2};G.prototype.getAttributes=function(t){const e=n.ComponentDatatype.FLOAT,i=n.ComponentDatatype.getSizeInBytes(e),a=this.stride*i;let o=0;const r=[];function s(n,s){r.push({index:n,vertexBuffer:t,componentDatatype:e,componentsPerAttribute:s,offsetInBytes:o,strideInBytes:a}),o+=s*i}if(this.quantization===E.NONE){s(R.position3DAndHeight,4);let t=2;t+=this.hasWebMercatorT?1:0,t+=this.hasVertexNormals?1:0,s(R.textureCoordAndEncodedNormals,t),this.hasGeodeticSurfaceNormals&&s(R.geodeticSurfaceNormal,3)}else{const t=this.hasWebMercatorT||this.hasVertexNormals,e=this.hasWebMercatorT&&this.hasVertexNormals;s(U.compressed0,t?4:3),e&&s(U.compressed1,1),this.hasGeodeticSurfaceNormals&&s(U.geodeticSurfaceNormal,3)}return r},G.prototype.getAttributeLocations=function(){return this.quantization===E.NONE?R:U},G.clone=function(t,e){if(a.defined(t))return a.defined(e)||(e=new G),e.quantization=t.quantization,e.minimumHeight=t.minimumHeight,e.maximumHeight=t.maximumHeight,e.center=i.Cartesian3.clone(t.center),e.toScaledENU=o.Matrix4.clone(t.toScaledENU),e.fromScaledENU=o.Matrix4.clone(t.fromScaledENU),e.matrix=o.Matrix4.clone(t.matrix),e.hasVertexNormals=t.hasVertexNormals,e.hasWebMercatorT=t.hasWebMercatorT,e.hasGeodeticSurfaceNormals=t.hasGeodeticSurfaceNormals,e.exaggeration=t.exaggeration,e.exaggerationRelativeHeight=t.exaggerationRelativeHeight,e._calculateStrideAndOffsets(),e},t.EllipsoidalOccluder=c,t.TerrainEncoding=G}));