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createPolylineGeometry.js

createPolylineGeometry.js 7.3 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","./ArcType-89067bf8","./arrayRemoveDuplicates-d35f503f","./Transforms-3ea76111","./Color-bda3e761","./ComponentDatatype-e86a9f87","./GeometryAttribute-dacddb3f","./GeometryAttributes-899f8bd0","./IndexDatatype-3a8ea78f","./Math-a304e2d6","./PolylinePipeline-6bbc2d22","./VertexFormat-7d5b4d7e","./Matrix2-7a2bab7e","./RuntimeError-f0dada00","./combine-462d91dd","./WebGLConstants-fcb70ee3","./EllipsoidGeodesic-048356f7","./EllipsoidRhumbLine-5519960c","./IntersectionTests-f3382f21","./Plane-5bea24eb"],(function(e,t,o,r,n,a,i,l,s,c,p,d,u,y,m,f,h,C,g,b,_){"use strict";const A=[];function E(e,t,o,r,n){const i=A;let l;i.length=n;const s=o.red,c=o.green,p=o.blue,d=o.alpha,u=r.red,y=r.green,m=r.blue,f=r.alpha;if(a.Color.equals(o,r)){for(l=0;l<n;l++)i[l]=a.Color.clone(o);return i}const h=(u-s)/n,C=(y-c)/n,g=(m-p)/n,b=(f-d)/n;for(l=0;l<n;l++)i[l]=new a.Color(s+l*h,c+l*C,p+l*g,d+l*b);return i}function P(r){const n=(r=e.defaultValue(r,e.defaultValue.EMPTY_OBJECT)).positions,i=r.colors,l=e.defaultValue(r.width,1),s=e.defaultValue(r.colorsPerVertex,!1);this._positions=n,this._colors=i,this._width=l,this._colorsPerVertex=s,this._vertexFormat=u.VertexFormat.clone(e.defaultValue(r.vertexFormat,u.VertexFormat.DEFAULT)),this._arcType=e.defaultValue(r.arcType,o.ArcType.GEODESIC),this._granularity=e.defaultValue(r.granularity,p.CesiumMath.RADIANS_PER_DEGREE),this._ellipsoid=t.Ellipsoid.clone(e.defaultValue(r.ellipsoid,t.Ellipsoid.WGS84)),this._workerName="createPolylineGeometry";let c=1+n.length*t.Cartesian3.packedLength;c+=e.defined(i)?1+i.length*a.Color.packedLength:1,this.packedLength=c+t.Ellipsoid.packedLength+u.VertexFormat.packedLength+4}P.pack=function(o,r,n){let i;n=e.defaultValue(n,0);const l=o._positions;let s=l.length;for(r[n++]=s,i=0;i<s;++i,n+=t.Cartesian3.packedLength)t.Cartesian3.pack(l[i],r,n);const c=o._colors;for(s=e.defined(c)?c.length:0,r[n++]=s,i=0;i<s;++i,n+=a.Color.packedLength)a.Color.pack(c[i],r,n);return t.Ellipsoid.pack(o._ellipsoid,r,n),n+=t.Ellipsoid.packedLength,u.VertexFormat.pack(o._vertexFormat,r,n),n+=u.VertexFormat.packedLength,r[n++]=o._width,r[n++]=o._colorsPerVertex?1:0,r[n++]=o._arcType,r[n]=o._granularity,r};const x=t.Ellipsoid.clone(t.Ellipsoid.UNIT_SPHERE),w=new u.VertexFormat,T={positions:void 0,colors:void 0,ellipsoid:x,vertexFormat:w,width:void 0,colorsPerVertex:void 0,arcType:void 0,granularity:void 0};P.unpack=function(o,r,n){let i;r=e.defaultValue(r,0);let l=o[r++];const s=new Array(l);for(i=0;i<l;++i,r+=t.Cartesian3.packedLength)s[i]=t.Cartesian3.unpack(o,r);l=o[r++];const c=l>0?new Array(l):void 0;for(i=0;i<l;++i,r+=a.Color.packedLength)c[i]=a.Color.unpack(o,r);const p=t.Ellipsoid.unpack(o,r,x);r+=t.Ellipsoid.packedLength;const d=u.VertexFormat.unpack(o,r,w);r+=u.VertexFormat.packedLength;const y=o[r++],m=1===o[r++],f=o[r++],h=o[r];return e.defined(n)?(n._positions=s,n._colors=c,n._ellipsoid=t.Ellipsoid.clone(p,n._ellipsoid),n._vertexFormat=u.VertexFormat.clone(d,n._vertexFormat),n._width=y,n._colorsPerVertex=m,n._arcType=f,n._granularity=h,n):(T.positions=s,T.colors=c,T.width=y,T.colorsPerVertex=m,T.arcType=f,T.granularity=h,new P(T))};const D=new t.Cartesian3,k=new t.Cartesian3,V=new t.Cartesian3,v=new t.Cartesian3;return P.createGeometry=function(u){const y=u._width,m=u._vertexFormat;let f=u._colors;const h=u._colorsPerVertex,C=u._arcType,g=u._granularity,b=u._ellipsoid;let _,P,x;const w=[];let T=r.arrayRemoveDuplicates(u._positions,t.Cartesian3.equalsEpsilon,!1,w);if(e.defined(f)&&w.length>0){let e=0,t=w[0];f=f.filter((function(o,r){let n=!1;return n=h?r===t||0===r&&1===t:r+1===t,!n||(e++,t=w[e],!1)}))}let L=T.length;if(L<2||y<=0)return;if(C===o.ArcType.GEODESIC||C===o.ArcType.RHUMB){let t,r;C===o.ArcType.GEODESIC?(t=p.CesiumMath.chordLength(g,b.maximumRadius),r=d.PolylinePipeline.numberOfPoints):(t=g,r=d.PolylinePipeline.numberOfPointsRhumbLine);const n=d.PolylinePipeline.extractHeights(T,b);if(e.defined(f)){let e=1;for(_=0;_<L-1;++_)e+=r(T[_],T[_+1],t);const o=new Array(e);let n=0;for(_=0;_<L-1;++_){const i=T[_],l=T[_+1],s=f[_],c=r(i,l,t);if(h&&_<e){const e=E(0,0,s,f[_+1],c),t=e.length;for(P=0;P<t;++P)o[n++]=e[P]}else for(P=0;P<c;++P)o[n++]=a.Color.clone(s)}o[n]=a.Color.clone(f[f.length-1]),f=o,A.length=0}T=C===o.ArcType.GEODESIC?d.PolylinePipeline.generateCartesianArc({positions:T,minDistance:t,ellipsoid:b,height:n}):d.PolylinePipeline.generateCartesianRhumbArc({positions:T,granularity:t,ellipsoid:b,height:n})}L=T.length;const F=4*L-4,G=new Float64Array(3*F),O=new Float64Array(3*F),R=new Float64Array(3*F),I=new Float32Array(2*F),S=m.st?new Float32Array(2*F):void 0,B=e.defined(f)?new Uint8Array(4*F):void 0;let M,U=0,N=0,H=0,W=0;for(P=0;P<L;++P){let o,r;0===P?(M=D,t.Cartesian3.subtract(T[0],T[1],M),t.Cartesian3.add(T[0],M,M)):M=T[P-1],t.Cartesian3.clone(M,V),t.Cartesian3.clone(T[P],k),P===L-1?(M=D,t.Cartesian3.subtract(T[L-1],T[L-2],M),t.Cartesian3.add(T[L-1],M,M)):M=T[P+1],t.Cartesian3.clone(M,v),e.defined(B)&&(o=0===P||h?f[P]:f[P-1],P!==L-1&&(r=f[P]));const n=P===L-1?2:4;for(x=0===P?2:0;x<n;++x){t.Cartesian3.pack(k,G,U),t.Cartesian3.pack(V,O,U),t.Cartesian3.pack(v,R,U),U+=3;const n=x-2<0?-1:1;if(I[N++]=x%2*2-1,I[N++]=n*y,m.st&&(S[H++]=P/(L-1),S[H++]=Math.max(I[N-2],0)),e.defined(B)){const e=x<2?o:r;B[W++]=a.Color.floatToByte(e.red),B[W++]=a.Color.floatToByte(e.green),B[W++]=a.Color.floatToByte(e.blue),B[W++]=a.Color.floatToByte(e.alpha)}}}const Y=new s.GeometryAttributes;Y.position=new l.GeometryAttribute({componentDatatype:i.ComponentDatatype.DOUBLE,componentsPerAttribute:3,values:G}),Y.prevPosition=new l.GeometryAttribute({componentDatatype:i.ComponentDatatype.DOUBLE,componentsPerAttribute:3,values:O}),Y.nextPosition=new l.GeometryAttribute({componentDatatype:i.ComponentDatatype.DOUBLE,componentsPerAttribute:3,values:R}),Y.expandAndWidth=new l.GeometryAttribute({componentDatatype:i.ComponentDatatype.FLOAT,componentsPerAttribute:2,values:I}),m.st&&(Y.st=new l.GeometryAttribute({componentDatatype:i.ComponentDatatype.FLOAT,componentsPerAttribute:2,values:S})),e.defined(B)&&(Y.color=new l.GeometryAttribute({componentDatatype:i.ComponentDatatype.UNSIGNED_BYTE,componentsPerAttribute:4,values:B,normalize:!0}));const q=c.IndexDatatype.createTypedArray(F,6*L-6);let z=0,J=0;const j=L-1;for(P=0;P<j;++P)q[J++]=z,q[J++]=z+2,q[J++]=z+1,q[J++]=z+1,q[J++]=z+2,q[J++]=z+3,z+=4;return new l.Geometry({attributes:Y,indices:q,primitiveType:l.PrimitiveType.TRIANGLES,boundingSphere:n.BoundingSphere.fromPoints(T),geometryType:l.GeometryType.POLYLINES})},function(o,r){return e.defined(r)&&(o=P.unpack(o,r)),o._ellipsoid=t.Ellipsoid.clone(o._ellipsoid),P.createGeometry(o)}}));
    26.