FWPFMaths.h

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#ifndef _FWPFMATHS_H_
#define _FWPFMATHS_H_

namespace FWPFMaths
{
   TEveVector        lineCircleIntersect( const TEveVector &v1, const TEveVector &v2, float r );
   TEveVector        lineLineIntersect( const TEveVector &v1, const TEveVector &v2,
                                        const TEveVector &v3, const TEveVector &v4 );
   TEveVector        cross( const TEveVector &v1, const TEveVector &v2 );
   TEveVector        calculateCentre( const float *vertices );
   float             linearInterpolation( const TEveVector &p1, const TEveVector &p2, float r );
   float             dot( const TEveVector &v1, const TEveVector &v2 );
   float             sgn( float val );
   float             calculateEt( const TEveVector &centre, float e );
   bool              checkIntersect( const TEveVector &vec, float r );
}
#endif