define(["exports","./when-c2e8ef35","./Check-c4f3a3fc","./Math-d30358ed","./Cartesian2-e875d9d2","./Transforms-44592b02"],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 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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 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