hep.lcd.vertexing.zvtop
Class ZvUtils

java.lang.Object
  |
  +--hep.lcd.vertexing.zvtop.ZvUtils

public class ZvUtils

extends Object

ZvUtils -- utilities for ZvXxxx classes

Version:

$Id: ZvUtils.java,v 1.2 2001/06/05 18:20:58 walkowia Exp $

Author:

W.Walkowiak, 09/19/00

Source Code:

ZvUtils.java

Constructor Summary

ZvUtils()

Method Summary

static double[]	copy(double[] a) copy an array of double
protected static Hep3Vector	copy(Hep3Vector v) copy a Hep3Vector
protected static Hep3Vector	crePosVec(double[] hlxPar) extract the 3 dim position from Zv helix parameters into a Hep3Vector
static Jama.Matrix	creProjMatrix(Hep3Vector v) create a matrix from two vectors: M = a.a^T
static Hep3Vector	creVec(double[] a) convert a 3 dim array into Hep3Vector
static String	dumpToString(Jama.Matrix m)
static double	restrictTo2Pi(double val, double min) restrict angular value to range [min,min+2*PI] in angle;

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ZvUtils

public ZvUtils()

Method Detail

creVec

public static Hep3Vector creVec(double[] a)

convert a 3 dim array into Hep3Vector

copy

protected static Hep3Vector copy(Hep3Vector v)

copy a Hep3Vector

copy

public static double[] copy(double[] a)

copy an array of double

crePosVec

protected static Hep3Vector crePosVec(double[] hlxPar)

extract the 3 dim position from Zv helix parameters into a Hep3Vector

creProjMatrix

public static Jama.Matrix creProjMatrix(Hep3Vector v)

create a matrix from two vectors: M = a.a^T

restrictTo2Pi

public static double restrictTo2Pi(double val,
                                   double min)

restrict angular value to range [min,min+2*PI] in angle;

dumpToString

public static String dumpToString(Jama.Matrix m)