MVEpoch.h

Classes

MVEpoch -- A class for high precision time (full description)

class MVEpoch : public MeasValue

Interface

Public Members

MVEpoch()

MVEpoch(const MVEpoch &other)

MVEpoch(Double inday, Double infrac=0)

MVEpoch(const Vector<Double> &inday)

MVEpoch(const Quantity &in)

MVEpoch(const Quantity &in1, const Quantity &in2)

MVEpoch(const Quantum<Vector<Double> > &in)

MVEpoch(const Vector<Quantity> &in)

~MVEpoch()

MVEpoch &operator=(const MVEpoch &other)

MVEpoch &operator+=(const MVEpoch &other)

MVEpoch operator+(const MVEpoch &other) const

MVEpoch &operator-=(const MVEpoch &other)

MVEpoch operator-(const MVEpoch &other) const

Bool operator==(const MVEpoch &other) const

Bool operator!=(const MVEpoch &other) const

Bool near(const MVEpoch &other, Double tol = 1e-13) const

Bool nearAbs(const MVEpoch &other, Double tol = 1e-13) const

virtual uInt type() const

static void assure(const MeasValue &in)

virtual void adjust()

virtual void adjust(Double &res)

Double get() const

Quantity getTime() const

Quantity getTime(const Unit &unit) const

Double getDay() const

Double getDayFraction() const

virtual void print(ostream &os) const

virtual MeasValue *clone() const

virtual Vector<Double> getVector() const

virtual void putVector(const Vector<Double> &in)

virtual Vector<Quantum<Double> > getRecordValue() const

virtual Bool putValue(const Vector<Quantum<Double> > &in)

Private Members

Double makeDay(const Quantity &in) const

void addTime(Double in)

Description

Review Status

Reviewed By:

tcornwel

Date Reviewed:

1996/02/22

Programs:

Tests:

tMeasMath

Prerequisite

MeasValue class

Etymology

MVEpoch from Measure, Value and Epoch

Synopsis

MVEpoch is a class for high precision (10^-16 s) epochs over a period of 6*10¹⁰ a.
MVEpochs can be compared, a time interval can be added or subtracted, and the time difference can be found. The following constructors:

MVEpoch() default; assuming 0
MVEpoch(Double) with time given in days
MVEpoch(Double, Double=0) with times given in days
MVEpoch(Quantity, Quantity=0) with times given
MVEpoch(Quantum<Vector<Double> >) with times given
MVEpoch(Vector<Double>) with times in days
MVEpoch(Vector<Quantity>) with times

Example

See MEpoch

Motivation

To have high precision timing

To Do

A proper high precision time, including multiplication etc should be considered. E.g. a multi-byte number with 6 bytes day and 8 bytes fractional day.

Member Description

MVEpoch()

Default constructor, generates default 0 epoch

MVEpoch(const MVEpoch &other)

Copy constructor

MVEpoch(Double inday, Double infrac=0)
MVEpoch(const Vector<Double> &inday)

Constructor with time in days

MVEpoch(const Quantity &in)
MVEpoch(const Quantity &in1, const Quantity &in2)
MVEpoch(const Quantum<Vector<Double> > &in)
MVEpoch(const Vector<Quantity> &in)

Constructor with Quantities

~MVEpoch()

MVEpoch &operator=(const MVEpoch &other)

Copy assignment

MVEpoch &operator+=(const MVEpoch &other)
MVEpoch operator+(const MVEpoch &other) const

Add times

MVEpoch &operator-=(const MVEpoch &other)
MVEpoch operator-(const MVEpoch &other) const

Difference times

Bool operator==(const MVEpoch &other) const
Bool operator!=(const MVEpoch &other) const
Bool near(const MVEpoch &other, Double tol = 1e-13) const
Bool nearAbs(const MVEpoch &other, Double tol = 1e-13) const

Comparisons

virtual uInt type() const
static void assure(const MeasValue &in)

Tell me your type

virtual void adjust()
virtual void adjust(Double &res)

Adjust the time to its constituent parts. The returned result is always 1.0

Double get() const

Get value in days

Quantity getTime() const
Quantity getTime(const Unit &unit) const

Get value with units

Double getDay() const

Get value of integer days

Double getDayFraction() const

Get fraction of days

virtual void print(ostream &os) const

Print a value

virtual MeasValue *clone() const

Clone a value

virtual Vector<Double> getVector() const

Get the value in internal units

virtual void putVector(const Vector<Double> &in)

Set the value from internal units (set 0 for empty vector)

virtual Vector<Quantum<Double> > getRecordValue() const

Get the internal value as a Vector<Quantity>. Usable in records. The getXRecordValue() gets additional information for records. Note that the Vectors could be empty.

virtual Bool putValue(const Vector<Quantum<Double> > &in)

Set the internal value if correct values and dimensions

Double makeDay(const Quantity &in) const

Make days from quantity

void addTime(Double in)

Add time from days