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createPolylineVolumeGeometry.js

createPolylineVolumeGeometry.js 5.9 KB
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  1. /**
    2. 

  2.  * @license
    3. 

  3.  * Cesium - https://github.com/CesiumGS/cesium
    4. 

  4.  * Version 1.99
    5. 

  5.  *
    6. 

  6.  * Copyright 2011-2022 Cesium Contributors
    7. 

  7.  *
    8. 

  8.  * Licensed under the Apache License, Version 2.0 (the "License");
    9. 

  9.  * you may not use this file except in compliance with the License.
    10. 

  10.  * You may obtain a copy of the License at
    11. 

  11.  *
    12. 

  12.  * http://www.apache.org/licenses/LICENSE-2.0
    13. 

  13.  *
    14. 

  14.  * Unless required by applicable law or agreed to in writing, software
    15. 

  15.  * distributed under the License is distributed on an "AS IS" BASIS,
    16. 

  16.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    17. 

  17.  * See the License for the specific language governing permissions and
    18. 

  18.  * limitations under the License.
    19. 

  19.  *
    20. 

  20.  * Columbus View (Pat. Pend.)
    21. 

  21.  *
    22. 

  22.  * Portions licensed separately.
    23. 

  23.  * See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
    24. 

  24.  */
    25. 

  25. define(["./defaultValue-135942ca","./Matrix3-edb29a7e","./arrayRemoveDuplicates-d35f503f","./BoundingRectangle-9f46b506","./Transforms-3ea76111","./Matrix2-7a2bab7e","./ComponentDatatype-e86a9f87","./PolylineVolumeGeometryLibrary-5450bad0","./GeometryAttribute-dacddb3f","./GeometryAttributes-899f8bd0","./GeometryPipeline-7cd8f832","./IndexDatatype-3a8ea78f","./Math-a304e2d6","./PolygonPipeline-92a50571","./VertexFormat-7d5b4d7e","./combine-462d91dd","./RuntimeError-f0dada00","./WebGLConstants-fcb70ee3","./EllipsoidTangentPlane-46a19c1a","./AxisAlignedBoundingBox-5f8053d3","./IntersectionTests-f3382f21","./Plane-5bea24eb","./PolylinePipeline-6bbc2d22","./EllipsoidGeodesic-048356f7","./EllipsoidRhumbLine-5519960c","./AttributeCompression-5b18be52","./EncodedCartesian3-bf4e5ec3"],(function(e,t,n,o,i,a,r,l,s,p,c,d,u,m,y,g,f,h,b,P,E,_,k,v,V,x,L){"use strict";function C(n){const o=(n=e.defaultValue(n,e.defaultValue.EMPTY_OBJECT)).polylinePositions,i=n.shapePositions;this._positions=o,this._shape=i,this._ellipsoid=t.Ellipsoid.clone(e.defaultValue(n.ellipsoid,t.Ellipsoid.WGS84)),this._cornerType=e.defaultValue(n.cornerType,l.CornerType.ROUNDED),this._vertexFormat=y.VertexFormat.clone(e.defaultValue(n.vertexFormat,y.VertexFormat.DEFAULT)),this._granularity=e.defaultValue(n.granularity,u.CesiumMath.RADIANS_PER_DEGREE),this._workerName="createPolylineVolumeGeometry";let r=1+o.length*t.Cartesian3.packedLength;r+=1+i.length*a.Cartesian2.packedLength,this.packedLength=r+t.Ellipsoid.packedLength+y.VertexFormat.packedLength+2}C.pack=function(n,o,i){let r;i=e.defaultValue(i,0);const l=n._positions;let s=l.length;for(o[i++]=s,r=0;r<s;++r,i+=t.Cartesian3.packedLength)t.Cartesian3.pack(l[r],o,i);const p=n._shape;for(s=p.length,o[i++]=s,r=0;r<s;++r,i+=a.Cartesian2.packedLength)a.Cartesian2.pack(p[r],o,i);return t.Ellipsoid.pack(n._ellipsoid,o,i),i+=t.Ellipsoid.packedLength,y.VertexFormat.pack(n._vertexFormat,o,i),i+=y.VertexFormat.packedLength,o[i++]=n._cornerType,o[i]=n._granularity,o};const F=t.Ellipsoid.clone(t.Ellipsoid.UNIT_SPHERE),A=new y.VertexFormat,T={polylinePositions:void 0,shapePositions:void 0,ellipsoid:F,vertexFormat:A,cornerType:void 0,granularity:void 0};C.unpack=function(n,o,i){let r;o=e.defaultValue(o,0);let l=n[o++];const s=new Array(l);for(r=0;r<l;++r,o+=t.Cartesian3.packedLength)s[r]=t.Cartesian3.unpack(n,o);l=n[o++];const p=new Array(l);for(r=0;r<l;++r,o+=a.Cartesian2.packedLength)p[r]=a.Cartesian2.unpack(n,o);const c=t.Ellipsoid.unpack(n,o,F);o+=t.Ellipsoid.packedLength;const d=y.VertexFormat.unpack(n,o,A);o+=y.VertexFormat.packedLength;const u=n[o++],m=n[o];return e.defined(i)?(i._positions=s,i._shape=p,i._ellipsoid=t.Ellipsoid.clone(c,i._ellipsoid),i._vertexFormat=y.VertexFormat.clone(d,i._vertexFormat),i._cornerType=u,i._granularity=m,i):(T.polylinePositions=s,T.shapePositions=p,T.cornerType=u,T.granularity=m,new C(T))};const G=new o.BoundingRectangle;return C.createGeometry=function(e){const a=e._positions,u=n.arrayRemoveDuplicates(a,t.Cartesian3.equalsEpsilon);let y=e._shape;if(y=l.PolylineVolumeGeometryLibrary.removeDuplicatesFromShape(y),u.length<2||y.length<3)return;m.PolygonPipeline.computeWindingOrder2D(y)===m.WindingOrder.CLOCKWISE&&y.reverse();const g=o.BoundingRectangle.fromPoints(y,G);return function(e,t,n,o){const a=new p.GeometryAttributes;o.position&&(a.position=new s.GeometryAttribute({componentDatatype:r.ComponentDatatype.DOUBLE,componentsPerAttribute:3,values:e}));const u=t.length,y=e.length/3,g=(y-2*u)/(2*u),f=m.PolygonPipeline.triangulate(t),h=(g-1)*u*6+2*f.length,b=d.IndexDatatype.createTypedArray(y,h);let P,E,_,k,v,V;const x=2*u;let L=0;for(P=0;P<g-1;P++){for(E=0;E<u-1;E++)_=2*E+P*u*2,V=_+x,k=_+1,v=k+x,b[L++]=k,b[L++]=_,b[L++]=v,b[L++]=v,b[L++]=_,b[L++]=V;_=2*u-2+P*u*2,k=_+1,v=k+x,V=_+x,b[L++]=k,b[L++]=_,b[L++]=v,b[L++]=v,b[L++]=_,b[L++]=V}if(o.st||o.tangent||o.bitangent){const e=new Float32Array(2*y),o=1/(g-1),i=1/n.height,l=n.height/2;let p,c,d=0;for(P=0;P<g;P++){for(p=P*o,c=i*(t[0].y+l),e[d++]=p,e[d++]=c,E=1;E<u;E++)c=i*(t[E].y+l),e[d++]=p,e[d++]=c,e[d++]=p,e[d++]=c;c=i*(t[0].y+l),e[d++]=p,e[d++]=c}for(E=0;E<u;E++)p=0,c=i*(t[E].y+l),e[d++]=p,e[d++]=c;for(E=0;E<u;E++)p=(g-1)*o,c=i*(t[E].y+l),e[d++]=p,e[d++]=c;a.st=new s.GeometryAttribute({componentDatatype:r.ComponentDatatype.FLOAT,componentsPerAttribute:2,values:new Float32Array(e)})}const C=y-2*u;for(P=0;P<f.length;P+=3){const e=f[P]+C,t=f[P+1]+C,n=f[P+2]+C;b[L++]=e,b[L++]=t,b[L++]=n,b[L++]=n+u,b[L++]=t+u,b[L++]=e+u}let F=new s.Geometry({attributes:a,indices:b,boundingSphere:i.BoundingSphere.fromVertices(e),primitiveType:s.PrimitiveType.TRIANGLES});if(o.normal&&(F=c.GeometryPipeline.computeNormal(F)),o.tangent||o.bitangent){try{F=c.GeometryPipeline.computeTangentAndBitangent(F)}catch(e){l.oneTimeWarning("polyline-volume-tangent-bitangent","Unable to compute tangents and bitangents for polyline volume geometry")}o.tangent||(F.attributes.tangent=void 0),o.bitangent||(F.attributes.bitangent=void 0),o.st||(F.attributes.st=void 0)}return F}(l.PolylineVolumeGeometryLibrary.computePositions(u,y,g,e,!0),y,g,e._vertexFormat)},function(n,o){return e.defined(o)&&(n=C.unpack(n,o)),n._ellipsoid=t.Ellipsoid.clone(n._ellipsoid),C.createGeometry(n)}}));
    26.