org.das2.datum
Class DatumUtil

java.lang.Object
  org.das2.datum.DatumUtil

public final class DatumUtil
extends java.lang.Object

Method Summary

static Datum	asOrderOneUnits(Datum d) This method takes the input datum and gets it as close to order one as possible by trying all possible conversions.
static DatumFormatter	bestFormatter(Datum minimum, Datum maximum, int nsteps)
static DatumFormatter	bestFormatter(DatumVector datums)
static DatumFormatter	bestTimeFormatter(Datum minimum, Datum maximum, int nsteps)
static Datum	createValid(java.lang.String s)
static double[]	doubleValues(Datum[] datums, Units units)
static double[]	doubleValues(Datum[] datums, Units[] unitsArray)
static int	fractionalDigits(Datum resolution)
static DatumFormatter	limitLogResolutionFormatter(Datum minimum, Datum maximum, int nsteps)
static DatumFormatter	limitResolutionFormatter(Datum minimum, Datum maximum, int nsteps)
static Datum	parse(java.lang.String s) attempt to parse the string as a datum.
static Datum	parseValid(java.lang.String s)
static java.lang.String	zeros(int count)

Methods inherited from class java.lang.Object

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

Method Detail

bestFormatter

public static DatumFormatter bestFormatter(DatumVector datums)

fractionalDigits

public static int fractionalDigits(Datum resolution)

limitLogResolutionFormatter

public static DatumFormatter limitLogResolutionFormatter(Datum minimum,
                                                         Datum maximum,
                                                         int nsteps)

limitResolutionFormatter

public static DatumFormatter limitResolutionFormatter(Datum minimum,
                                                      Datum maximum,
                                                      int nsteps)

bestFormatter

public static DatumFormatter bestFormatter(Datum minimum,
                                           Datum maximum,
                                           int nsteps)

zeros

public static java.lang.String zeros(int count)

bestTimeFormatter

public static DatumFormatter bestTimeFormatter(Datum minimum,
                                               Datum maximum,
                                               int nsteps)

parse

public static Datum parse(java.lang.String s)
                   throws java.text.ParseException

attempt to parse the string as a datum. Note that if the units aren't specified, then of course the Datum will be assumed to be dimensionless.

Throws:

java.text.ParseException - when the double can't be parsed or the units aren't recognized.

parseValid

public static Datum parseValid(java.lang.String s)

createValid

public static Datum createValid(java.lang.String s)

doubleValues

public static double[] doubleValues(Datum[] datums,
                                    Units units)

doubleValues

public static double[] doubleValues(Datum[] datums,
                                    Units[] unitsArray)

asOrderOneUnits

public static Datum asOrderOneUnits(Datum d)

This method takes the input datum and gets it as close to order one as possible by trying all possible conversions.

Parameters:

d - A datum that needs to have its units changed to order one units.

Returns:

The order-one-ified Datum.