Vec2d MyTrack::CalcNormal( double trackPos ) const
{
int idx = IndexFromPos(trackPos);
const tTrackSeg* pSeg = m_pSegs[idx].pSeg;
double t;
Vec3d pt;
Vec3d norm;
CalcPtAndNormal( pSeg, trackPos - pSeg->lgfromstart, t, pt, norm );
return norm.GetXY();
}
