Package org.jlab.rec.cvt.trajectory
package org.jlab.rec.cvt.trajectory
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ClassesClassDescriptionA class describing a helix; the helix parameters are field of the track object These parameters are private and accessed by getters: _dca; // distance of closest approach to the z-axis in the lab frame _phi_at_dca; // azimuth at the DOCA _curvature; // track curvature = 1/R, where R is the radius of the circle _Z0; // intersect of the helix axis with the z-axis _tandip; // tangent of the dip angle = pz/pt Has a method getPointAtRadius(double r) which returns the point position along the helix at a given radial distance from the lab origin.A StateVec describes a cross measurement in the CVT.The trajectory is a set of state vectors at BST planes along the particle path. * A StateVec describes a cross measurement in the BST. directions in that coordinate system.A driver class to find the trajectory of a track candidate.