createVectorTilePoints.js 1.9 KB

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  1. /**
  2. * @license
  3. * Cesium - https://github.com/CesiumGS/cesium
  4. * Version 1.95
  5. *
  6. * Copyright 2011-2022 Cesium Contributors
  7. *
  8. * Licensed under the Apache License, Version 2.0 (the "License");
  9. * you may not use this file except in compliance with the License.
  10. * You may obtain a copy of the License at
  11. *
  12. * http://www.apache.org/licenses/LICENSE-2.0
  13. *
  14. * Unless required by applicable law or agreed to in writing, software
  15. * distributed under the License is distributed on an "AS IS" BASIS,
  16. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17. * See the License for the specific language governing permissions and
  18. * limitations under the License.
  19. *
  20. * Columbus View (Pat. Pend.)
  21. *
  22. * Portions licensed separately.
  23. * See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
  24. */
  25. define(["./AttributeCompression-5744d52e","./Matrix2-73789715","./ComponentDatatype-e7fbe225","./createTaskProcessorWorker","./RuntimeError-4f8ec8a2","./defaultValue-97284df2","./WebGLConstants-6da700a2"],(function(e,t,a,r,n,o,i){"use strict";const s=32767,c=new t.Cartographic,u=new t.Cartesian3,p=new t.Rectangle,l=new t.Ellipsoid,f={min:void 0,max:void 0};return r((function(r,n){const o=new Uint16Array(r.positions);!function(e){e=new Float64Array(e);let a=0;f.min=e[a++],f.max=e[a++],t.Rectangle.unpack(e,a,p),a+=t.Rectangle.packedLength,t.Ellipsoid.unpack(e,a,l)}(r.packedBuffer);const i=p,m=l,d=f.min,h=f.max,C=o.length/3,g=o.subarray(0,C),b=o.subarray(C,2*C),w=o.subarray(2*C,3*C);e.AttributeCompression.zigZagDeltaDecode(g,b,w);const k=new Float64Array(o.length);for(let e=0;e<C;++e){const r=g[e],n=b[e],o=w[e],p=a.CesiumMath.lerp(i.west,i.east,r/s),l=a.CesiumMath.lerp(i.south,i.north,n/s),f=a.CesiumMath.lerp(d,h,o/s),C=t.Cartographic.fromRadians(p,l,f,c),y=m.cartographicToCartesian(C,u);t.Cartesian3.pack(y,k,3*e)}return n.push(k.buffer),{positions:k.buffer}}))}));