UNPKG

mars3d-cesium

Version:

CesiumJS是一个JavaScript库,用于在web浏览器中无需插件创建3D地球仪和2D地图,mars3d-cesium是mars3d团队修改版本的CesiumJS。

27 lines (25 loc) 1.98 kB
/** * @license * Cesium - https://github.com/CesiumGS/cesium * Version 1.142.1 * * 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. */ import{a as x}from"./chunk-RHD3WQLV.js";import{a as w}from"./chunk-4P7GORSL.js";import{j as c}from"./chunk-C3JKZBS5.js";import"./chunk-3TSBNXE7.js";import"./chunk-5RMHOCKK.js";import"./chunk-TXZVEXHN.js";import"./chunk-G7RN6XT4.js";import{a as l,c as p}from"./chunk-LQ243OAE.js";import{a as h}from"./chunk-EPSEO3NS.js";import{a as i}from"./chunk-O6FXZBDO.js";import"./chunk-TKI7JJEW.js";import"./chunk-VSASJODR.js";var u=32767,F=new l,L=new h,b=new c,y=new p,a={min:void 0,max:void 0};function V(t){t=new Float64Array(t);let o=0;a.min=t[o++],a.max=t[o++],c.unpack(t,o,b),o+=c.packedLength,p.unpack(t,o,y)}function z(t,o){let s=new Uint16Array(t.positions);V(t.packedBuffer);let e=b,C=y,A=a.min,P=a.max,n=s.length/3,f=s.subarray(0,n),g=s.subarray(n,2*n),d=s.subarray(2*n,3*n);w.zigZagDeltaDecode(f,g,d);let m=new Float64Array(s.length);for(let r=0;r<n;++r){let k=f[r],E=g[r],H=d[r],M=i.lerp(e.west,e.east,k/u),R=i.lerp(e.south,e.north,E/u),T=i.lerp(A,P,H/u),v=l.fromRadians(M,R,T,F),D=C.cartographicToCartesian(v,L);h.pack(D,m,r*3)}return o.push(m.buffer),{positions:m.buffer}}var G=x(z);export{G as default};