public class PropXYXY extends PropDirected
Propagation will fail if either the origin or destination is not a XYPlane. Propagator works incorrectly for tracks with very small curvatures
Modifier and Type | Field and Description |
---|---|
private double |
_bfac |
private static int |
IDVDU |
private static int |
IDZDU |
private static int |
IQP |
private static int |
IV |
private static int |
IZ |
Constructor and Description |
---|
PropXYXY(double bfield)
Construct an instance from a constant solenoidal magnetic field in Tesla.
|
Modifier and Type | Method and Description |
---|---|
double |
bField()
Return the strength of the magnetic field in Tesla.
|
(package private) double |
direction(int flag_forward,
int sign_dphi,
double du,
double norm,
double cat,
double sinphi,
double cosphi) |
Propagator |
newPropagator()
Clone an instance.
|
static String |
staticType()
Return a String representation of the class' type name.
|
String |
toString()
output stream
|
String |
type()
Return a String representation of the class' type name.
|
static String |
typeName()
Return a String representation of the class' type name.
|
(package private) PropStat |
vec_propagatexyxy_(double B,
VTrack trv,
Surface srf,
PropDir dir1,
TrackDerivative deriv) |
PropStat |
vecDirProp(VTrack trv,
Surface srf,
PropDir dir)
Propagate a track without error in the specified direction.
|
PropStat |
vecDirProp(VTrack trv,
Surface srf,
PropDir dir,
TrackDerivative deriv)
Propagate a track without error in the specified direction
and return the derivative matrix in deriv.
|
(package private) PropStat |
zeroBField(VTrack trv,
SurfXYPlane sxyp1,
SurfXYPlane sxyp2,
PropDir dir1,
TrackDerivative deriv) |
direction, direction, errProp, vecProp
errDirProp, errDirProp, errProp, reduce, reduceDirection, vecProp
private double _bfac
private static final int IV
private static final int IZ
private static final int IDVDU
private static final int IDZDU
private static final int IQP
public PropXYXY(double bfield)
bfield
- The magnetic field strength in Tesla.public static String typeName()
public static String staticType()
public Propagator newPropagator()
newPropagator
in class Propagator
public PropStat vecDirProp(VTrack trv, Surface srf, PropDir dir, TrackDerivative deriv)
vecDirProp
in class Propagator
trv
- The VTrack to propagate.srf
- The Surface to which to propagate.dir
- The direction in which to propagate.deriv
- The track derivatives to update at the surface srf.public PropStat vecDirProp(VTrack trv, Surface srf, PropDir dir)
vecDirProp
in class Propagator
trv
- The VTrack to propagate.srf
- The Surface to which to propagate.dir
- The direction in which to propagate.public double bField()
public String type()
public String toString()
double direction(int flag_forward, int sign_dphi, double du, double norm, double cat, double sinphi, double cosphi)
PropStat vec_propagatexyxy_(double B, VTrack trv, Surface srf, PropDir dir1, TrackDerivative deriv)
PropStat zeroBField(VTrack trv, SurfXYPlane sxyp1, SurfXYPlane sxyp2, PropDir dir1, TrackDerivative deriv)
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