/**
 * Cesium - https://github.com/CesiumGS/cesium
 *
 * Copyright 2011-2020 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/master/LICENSE.md for full licensing details.
 */
define(["exports","./when-60b00257","./Check-4274a1fd","./Math-9d37f659","./Cartesian2-2951f601","./Transforms-53ff6d12"],function(a,q,t,z,T,U){"use strict";var W={};function C(a,t,e){var r=a+t;return z.CesiumMath.sign(a)!==z.CesiumMath.sign(t)&&Math.abs(r/Math.max(Math.abs(a),Math.abs(t)))<e?0:r}W.computeDiscriminant=function(a,t,e){return t*t-4*a*e},W.computeRealRoots=function(a,t,e){var r;if(0===a)return 0===t?[]:[-e/t];if(0===t){if(0===e)return[0,0];var n=Math.abs(e),i=Math.abs(a);if(n<i&&n/i<z.CesiumMath.EPSILON14)return[0,0];if(i<n&&i/n<z.CesiumMath.EPSILON14)return[];if((r=-e/a)<0)return[];var s=Math.sqrt(r);return[-s,s]}if(0===e)return(r=-t/a)<0?[r,0]:[0,r];var o=C(t*t,-(4*a*e),z.CesiumMath.EPSILON14);if(o<0)return[];var u=-.5*C(t,z.CesiumMath.sign(t)*Math.sqrt(o),z.CesiumMath.EPSILON14);return 0<t?[u/a,e/u]:[e/u,u/a]};var b={};function o(a,t,e,r){var n,i,s=a,o=t/3,u=e/3,C=r,c=s*u,l=o*C,h=o*o,M=u*u,f=s*u-h,m=s*C-o*u,d=o*C-M,v=4*f*d-m*m;if(v<0){var g,p,w,R=-((w=c*M<=h*l?-2*o*(p=f)+(g=s)*m:-(g=C)*m+2*u*(p=d))<0?-1:1)*Math.abs(g)*Math.sqrt(-v),S=(i=R-w)/2,O=S<0?-Math.pow(-S,1/3):Math.pow(S,1/3),x=i===R?-O:-p/O;return n=p<=0?O+x:-w/(O*O+x*x+p),c*M<=h*l?[(n-o)/s]:[-C/(n+u)]}var y=f,P=-2*o*f+s*m,N=d,b=-C*m+2*u*d,q=Math.sqrt(v),L=Math.sqrt(3)/2,I=Math.abs(Math.atan2(s*q,-P)/3);n=2*Math.sqrt(-y);var E=Math.cos(I);i=n*E;var z=n*(-E/2-L*Math.sin(I)),T=2*o<i+z?i-o:z-o,U=s,W=T/U;I=Math.abs(Math.atan2(C*q,-b)/3);var B=-C,V=(i=(n=2*Math.sqrt(-N))*(E=Math.cos(I)))+(z=n*(-E/2-L*Math.sin(I)))<2*u?i+u:z+u,Z=B/V,A=-T*V-U*B,D=(u*A-o*(T*B))/(-o*A+u*(U*V));return W<=D?W<=Z?D<=Z?[W,D,Z]:[W,Z,D]:[Z,W,D]:W<=Z?[D,W,Z]:D<=Z?[D,Z,W]:[Z,D,W]}b.computeDiscriminant=function(a,t,e,r){var n=t*t,i=e*e;return 18*a*t*e*r+n*i-27*(a*a)*(r*r)-4*(a*i*e+n*t*r)},b.computeRealRoots=function(a,t,e,r){var n,i;if(0===a)return W.computeRealRoots(t,e,r);if(0!==t)return 0===e?0===r?(i=-t/a)<0?[i,0,0]:[0,0,i]:o(a,t,0,r):0===r?0===(n=W.computeRealRoots(a,t,e)).length?[0]:n[1]<=0?[n[0],n[1],0]:0<=n[0]?[0,n[0],n[1]]:[n[0],0,n[1]]:o(a,t,e,r);if(0!==e)return 0===r?0===(n=W.computeRealRoots(a,0,e)).Length?[0]:[n[0],0,n[1]]:o(a,0,e,r);if(0===r)return[0,0,0];var s=(i=-r/a)<0?-Math.pow(-i,1/3):Math.pow(i,1/3);return[s,s,s]};var B={};function c(a,t,e,r){var n=a*a,i=t-3*n/8,s=e-t*a/2+n*a/8,o=r-e*a/4+t*n/16-3*n*n/256,u=b.computeRealRoots(1,2*i,i*i-4*o,-s*s);if(0<u.length){var C=-a/4,c=u[u.length-1];if(Math.abs(c)<z.CesiumMath.EPSILON14){var l=W.computeRealRoots(1,i,o);if(2===l.length){var h,M=l[0],f=l[1];if(0<=M&&0<=f){var m=Math.sqrt(M),d=Math.sqrt(f);return[C-d,C-m,C+m,C+d]}if(0<=M&&f<0)return[C-(h=Math.sqrt(M)),C+h];if(M<0&&0<=f)return[C-(h=Math.sqrt(f)),C+h]}return[]}if(0<c){var v=Math.sqrt(c),g=(i+c-s/v)/2,p=(i+c+s/v)/2,w=W.computeRealRoots(1,v,g),R=W.computeRealRoots(1,-v,p);return 0!==w.length?(w[0]+=C,w[1]+=C,0!==R.length?(R[0]+=C,R[1]+=C,w[1]<=R[0]?[w[0],w[1],R[0],R[1]]:R[1]<=w[0]?[R[0],R[1],w[0],w[1]]:w[0]>=R[0]&&w[1]<=R[1]?[R[0],w[0],w[1],R[1]]:R[0]>=w[0]&&R[1]<=w[1]?[w[0],R[0],R[1],w[1]]:w[0]>R[0]&&w[0]<R[1]?[R[0],w[0],R[1],w[1]]:[w[0],R[0],w[1],R[1]]):w):0!==R.length?(R[0]+=C,R[1]+=C,R):[]}}return[]}function l(a,t,e,r){var n=a*a,i=-2*t,s=e*a+t*t-4*r,o=n*r-e*t*a+e*e,u=b.computeRealRoots(1,i,s,o);if(0<u.length){var C,c,l,h,M,f,m=u[0],d=t-m,v=d*d,g=a/2,p=d/2,w=v-4*r,R=v+4*Math.abs(r),S=n-4*m,O=n+4*Math.abs(m);if(m<0||w*O<S*R){var x=Math.sqrt(S);C=x/2,c=0===x?0:(a*p-e)/x}else{var y=Math.sqrt(w);C=0===y?0:(a*p-e)/y,c=y/2}0==g&&0===C?h=l=0:z.CesiumMath.sign(g)===z.CesiumMath.sign(C)?h=m/(l=g+C):l=m/(h=g-C),0==p&&0===c?f=M=0:z.CesiumMath.sign(p)===z.CesiumMath.sign(c)?f=r/(M=p+c):M=r/(f=p-c);var P=W.computeRealRoots(1,l,M),N=W.computeRealRoots(1,h,f);if(0!==P.length)return 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l(i,s,o,u);case 3:case 4:return c(i,s,o,u);case 5:return l(i,s,o,u);case 6:case 7:return c(i,s,o,u);case 8:return l(i,s,o,u);case 9:case 10:return c(i,s,o,u);case 11:return l(i,s,o,u);case 12:case 13:case 14:case 15:return c(i,s,o,u);default:return}},e.clone=function(a,t){if(q.defined(a))return q.defined(t)?(t.origin=T.Cartesian3.clone(a.origin),t.direction=T.Cartesian3.clone(a.direction),t):new e(a.origin,a.direction)},e.getPoint=function(a,t,e){return q.defined(e)||(e=new T.Cartesian3),e=T.Cartesian3.multiplyByScalar(a.direction,t,e),T.Cartesian3.add(a.origin,e,e)};var h={rayPlane:function(a,t,e){q.defined(e)||(e=new T.Cartesian3);var r=a.origin,n=a.direction,i=t.normal,s=T.Cartesian3.dot(i,n);if(!(Math.abs(s)<z.CesiumMath.EPSILON15)){var o=(-t.distance-T.Cartesian3.dot(i,r))/s;if(!(o<0))return e=T.Cartesian3.multiplyByScalar(n,o,e),T.Cartesian3.add(r,e,e)}}},v=new T.Cartesian3,g=new T.Cartesian3,p=new T.Cartesian3,w=new T.Cartesian3,R=new 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e;h.lineSegmentSphere=function(a,t,e,r){var n=m;T.Cartesian3.clone(a,n.origin);var i=T.Cartesian3.subtract(t,a,n.direction),s=T.Cartesian3.magnitude(i);if(T.Cartesian3.normalize(i,i),r=u(n,e,r),!(!q.defined(r)||r.stop<0||r.start>s))return r.start=Math.max(r.start,0),r.stop=Math.min(r.stop,s),r};var d=new T.Cartesian3,S=new T.Cartesian3;function V(a,t,e){var r=a+t;return z.CesiumMath.sign(a)!==z.CesiumMath.sign(t)&&Math.abs(r/Math.max(Math.abs(a),Math.abs(t)))<e?0:r}h.rayEllipsoid=function(a,t){var e,r,n,i,s,o=t.oneOverRadii,u=T.Cartesian3.multiplyComponents(o,a.origin,d),C=T.Cartesian3.multiplyComponents(o,a.direction,S),c=T.Cartesian3.magnitudeSquared(u),l=T.Cartesian3.dot(u,C);if(1<c){if(0<=l)return;var h=l*l;if(e=c-1,h<(n=(r=T.Cartesian3.magnitudeSquared(C))*e))return;if(n<h){i=l*l-n;var M=(s=-l+Math.sqrt(i))/r,f=e/s;return M<f?new U.Interval(M,f):{start:f,stop:M}}var m=Math.sqrt(e/r);return new U.Interval(m,m)}return c<1?(e=c-1,i=l*l-(n=(r=T.Cartesian3.magnitudeSquared(C))*e),s=-l+Math.sqrt(i),new U.Interval(0,s/r)):l<0?(r=T.Cartesian3.magnitudeSquared(C),new U.Interval(0,-l/r)):void 0};var L=new T.Cartesian3,I=new T.Cartesian3,E=new T.Cartesian3,Z=new T.Cartesian3,A=new T.Cartesian3,D=new U.Matrix3,k=new U.Matrix3,F=new U.Matrix3,G=new U.Matrix3,Y=new U.Matrix3,_=new U.Matrix3,j=new U.Matrix3,H=new T.Cartesian3,J=new T.Cartesian3,K=new T.Cartographic;h.grazingAltitudeLocation=function(a,t){var e=a.origin,r=a.direction;if(!T.Cartesian3.equals(e,T.Cartesian3.ZERO)){var n=t.geodeticSurfaceNormal(e,L);if(0<=T.Cartesian3.dot(r,n))return e}var i=q.defined(this.rayEllipsoid(a,t)),s=t.transformPositionToScaledSpace(r,L),o=T.Cartesian3.normalize(s,s),u=T.Cartesian3.mostOrthogonalAxis(s,Z),C=T.Cartesian3.normalize(T.Cartesian3.cross(u,o,I),I),c=T.Cartesian3.normalize(T.Cartesian3.cross(o,C,E),E),l=D;l[0]=o.x,l[1]=o.y,l[2]=o.z,l[3]=C.x,l[4]=C.y,l[5]=C.z,l[6]=c.x,l[7]=c.y,l[8]=c.z;var h=U.Matrix3.transpose(l,k),M=U.Matrix3.fromScale(t.radii,F),f=U.Matrix3.fromScale(t.oneOverRadii,G),m=Y;m[0]=0,m[1]=-r.z,m[2]=r.y,m[3]=r.z,m[4]=0,m[5]=-r.x,m[6]=-r.y,m[7]=r.x,m[8]=0;var d,v,g=U.Matrix3.multiply(U.Matrix3.multiply(h,f,_),m,_),p=U.Matrix3.multiply(U.Matrix3.multiply(g,M,j),l,j),w=U.Matrix3.multiplyByVector(g,e,A),R=function(a,t,e,r,n){var i,s=r*r,o=n*n,u=(a[U.Matrix3.COLUMN1ROW1]-a[U.Matrix3.COLUMN2ROW2])*o,C=n*(r*V(a[U.Matrix3.COLUMN1ROW0],a[U.Matrix3.COLUMN0ROW1],z.CesiumMath.EPSILON15)+t.y),c=a[U.Matrix3.COLUMN0ROW0]*s+a[U.Matrix3.COLUMN2ROW2]*o+r*t.x+e,l=o*V(a[U.Matrix3.COLUMN2ROW1],a[U.Matrix3.COLUMN1ROW2],z.CesiumMath.EPSILON15),h=n*(r*V(a[U.Matrix3.COLUMN2ROW0],a[U.Matrix3.COLUMN0ROW2])+t.z),M=[];if(0==h&&0==l){if(0===(i=W.computeRealRoots(u,C,c)).length)return M;var f=i[0],m=Math.sqrt(Math.max(1-f*f,0));if(M.push(new T.Cartesian3(r,n*f,n*-m)),M.push(new T.Cartesian3(r,n*f,n*m)),2===i.length){var d=i[1],v=Math.sqrt(Math.max(1-d*d,0));M.push(new 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P=T.Cartesian3.normalize(T.Cartesian3.subtract(d,e,Z),Z),N=T.Cartesian3.dot(P,r);x<N&&(x=N,O=T.Cartesian3.clone(d,O))}var b=t.cartesianToCartographic(O,K);return x=z.CesiumMath.clamp(x,0,1),v=T.Cartesian3.magnitude(T.Cartesian3.subtract(O,e,Z))*Math.sqrt(1-x*x),v=i?-v:v,b.height=v,t.cartographicToCartesian(b,new T.Cartesian3)}};var O=new T.Cartesian3;h.lineSegmentPlane=function(a,t,e,r){q.defined(r)||(r=new T.Cartesian3);var n=T.Cartesian3.subtract(t,a,O),i=e.normal,s=T.Cartesian3.dot(i,n);if(!(Math.abs(s)<z.CesiumMath.EPSILON6)){var o=T.Cartesian3.dot(i,a),u=-(e.distance+o)/s;if(!(u<0||1<u))return T.Cartesian3.multiplyByScalar(n,u,r),T.Cartesian3.add(a,r,r),r}},h.trianglePlaneIntersection=function(a,t,e,r){var n,i,s=r.normal,o=r.distance,u=T.Cartesian3.dot(s,a)+o<0,C=T.Cartesian3.dot(s,t)+o<0,c=T.Cartesian3.dot(s,e)+o<0,l=0;if(l+=u?1:0,l+=C?1:0,1!=(l+=c?1:0)&&2!=l||(n=new T.Cartesian3,i=new T.Cartesian3),1==l){if(u)return h.lineSegmentPlane(a,t,r,n),h.lineSegmentPlane(a,e,r,i),{positions:[a,t,e,n,i],indices:[0,3,4,1,2,4,1,4,3]};if(C)return h.lineSegmentPlane(t,e,r,n),h.lineSegmentPlane(t,a,r,i),{positions:[a,t,e,n,i],indices:[1,3,4,2,0,4,2,4,3]};if(c)return h.lineSegmentPlane(e,a,r,n),h.lineSegmentPlane(e,t,r,i),{positions:[a,t,e,n,i],indices:[2,3,4,0,1,4,0,4,3]}}else if(2==l){if(!u)return h.lineSegmentPlane(t,a,r,n),h.lineSegmentPlane(e,a,r,i),{positions:[a,t,e,n,i],indices:[1,2,4,1,4,3,0,3,4]};if(!C)return h.lineSegmentPlane(e,t,r,n),h.lineSegmentPlane(a,t,r,i),{positions:[a,t,e,n,i],indices:[2,0,4,2,4,3,1,3,4]};if(!c)return h.lineSegmentPlane(a,e,r,n),h.lineSegmentPlane(t,e,r,i),{positions:[a,t,e,n,i],indices:[0,1,4,0,4,3,2,3,4]}}},a.IntersectionTests=h,a.Ray=e});