Finds extreme values in FloatMathFunctions. More...

Inheritance diagram for ExtremeFinder1D:

Public Member Functions
	ExtremeFinder1D (const FloatMathFunction &func, bool max, int itermax, float tol, const Interval< float > &startinterval, const Interval< float > *limitinterval)

virtual	~ExtremeFinder1D ()

float	extremePos () const

float	extremeVal () const

int	nextStep () override

int	nrIter () const

void	reStart (const Interval< float > &startinterval, const Interval< float > *limitinterval)

Public Member Functions inherited from SequentialTask
	SequentialTask (const char *nm=nullptr)

virtual	~SequentialTask ()

virtual int	doStep ()

bool	execute () override

Public Member Functions inherited from ReportingTask
virtual	~ReportingTask ()

void	getProgress (const ReportingTask &)

Public Member Functions inherited from Task
virtual	~Task ()

virtual void	controlWork (Control)

virtual void	enableWorkControl (bool=true)
	Must be called before execute() More...

virtual uiRetVal	errorWithDetails () const

virtual Control	getState () const

virtual std::int64_t	nrDone () const

virtual std::int64_t	totalNr () const

virtual uiString	uiMessage () const
	will be message() again in 7.x More...

virtual uiString	uiNrDoneText () const
	will be nrDoneText() in 7.x More...

bool	workControlEnabled () const

Public Member Functions inherited from NamedCallBacker
	NamedCallBacker (const char *nm=0)

	NamedCallBacker (const NamedCallBacker &)

virtual Notifier< NamedCallBacker > &	objectToBeDeleted () const

bool	operator== (const NamedCallBacker &oth) const

bool	operator== (const NamedObject &oth) const

Public Member Functions inherited from CallBacker
	CallBacker ()

	CallBacker (const CallBacker &)

virtual	~CallBacker ()

bool	attachCB (const NotifierAccess &, const CallBack &, bool onlyifnew=false) const

bool	attachCB (const NotifierAccess *notif, const CallBack &cb, bool onlyifnew=false) const

void	detachAllNotifiers () const
	Call from the destructor of your inherited object. More...

void	detachCB (const NotifierAccess &, const CallBack &) const

void	detachCB (const NotifierAccess *notif, const CallBack &cb) const

virtual bool	isCapsule () const

bool	isNotifierAttached (const NotifierAccess *) const
	Only for debugging purposes, don't use. More...

void	stopReceivingNotifications () const

virtual CallBacker *	trueCaller ()

Public Member Functions inherited from NamedObject
	NamedObject (const char *nm=nullptr)

	NamedObject (const NamedObject &oth)

virtual	~NamedObject ()

virtual BufferString	getName () const

bool	getNameFromPar (const IOPar &)

const name_type &	name () const override

NamedObject &	operator= (const NamedObject &)

bool	operator== (const NamedObject &oth) const

virtual void	setName (const char *nm)

Public Member Functions inherited from ObjectWithName
virtual	~ObjectWithName ()

bool	hasName (const char *nm) const

bool	hasName (const name_type &nm) const

void	putNameInPar (IOPar &) const

Protected Attributes
float	a_

float	ax_

float	b_

float	bx_

float	cx_

float	d_

float	e_

const FloatMathFunction &	func_

float	fv_

float	fw_

float	fx_

int	iter_

const int	itermax_

Interval< float > *	limits_

const bool	max_

const float	tol_

float	u_

float	v_

float	w_

float	x_

Protected Attributes inherited from Task
Control	control_

Threads::ConditionVar *	workcontrolcondvar_

Protected Attributes inherited from NamedCallBacker
Threads::Atomic< bool >	delalreadytriggered_

Notifier< NamedCallBacker >	delnotif_

Protected Attributes inherited from NamedObject
BufferString	name_

Additional Inherited Members
Public Types inherited from Task
enum	Control { Run , Pause , Stop }

Public Types inherited from ObjectWithName
typedef OD::String	name_type

Static Public Member Functions inherited from SequentialTask
static int	ErrorOccurred ()

static int	Finished ()

static int	MoreToDo ()

static int	WarningAvailable ()

Static Public Member Functions inherited from Task
static uiString	stdNrDoneText ()

static uiString	uiStdNrDoneText ()

Static Public Member Functions inherited from CallBacker
static void	createReceiverForCurrentThread ()

static void	removeReceiverForCurrentThread ()

Public Attributes inherited from ReportingTask
Notifier< ReportingTask >	progressUpdated

Protected Member Functions inherited from ReportingTask
	ReportingTask (const char *nm=nullptr)

void	incrementProgress ()

ProgressMeter *	progressMeter () const

void	reportProgressFinished ()

void	reportProgressStarted ()

void	resetProgress ()

void	setProgressMeter (ProgressMeter *) override
	Must be called before execute() More...

void	updateProgressMeter (bool forced=false, std::int64_t *totalnr=0)

void	updateReportedName ()

Protected Member Functions inherited from Task
	Task (const char *nm=nullptr)

virtual bool	shouldContinue ()

Protected Member Functions inherited from NamedCallBacker
void	sendDelNotif () const

Detailed Description

Finds extreme values in FloatMathFunctions.

Implementation of Brent's Method in one dimension.

<>

Constructor & Destructor Documentation

◆ ExtremeFinder1D()

ExtremeFinder1D::ExtremeFinder1D	(	const FloatMathFunction &	func,
		bool	max,
		int	itermax,
		float	tol,
		const Interval< float > &	startinterval,
		const Interval< float > *	limitinterval
	)

Parameters

func	The function, f(x) where the extreme value shoud be found
max	Specifies wether a min or max value should be found
itermax	Maximum number of iterations
tol	Tolerance on the function variable (x)
startinterval	The interval of x that the search will be inited by. Note that the search can go outside of this interval.
limitinterval	Set to true if only solutions within the interval is permitted

◆ ~ExtremeFinder1D()

virtual ExtremeFinder1D::~ExtremeFinder1D ( )

virtual

Member Function Documentation

◆ extremePos()

float ExtremeFinder1D::extremePos ( ) const

Returns: The x value of the extreme value

◆ extremeVal()

float ExtremeFinder1D::extremeVal ( ) const

Returns: The extreme value

◆ nextStep()

int ExtremeFinder1D::nextStep ( )

overridevirtual

Will move the current extremePos one step towards the solution.

Return values

0	Finished
1	More to do
-1	Error (no extreme found or itermax reached The extreme value)

Implements SequentialTask.

◆ nrIter()

int ExtremeFinder1D::nrIter ( ) const

Returns: The number of iterations

◆ reStart()

void ExtremeFinder1D::reStart	(	const Interval< float > &	startinterval,
		const Interval< float > *	limitinterval
	)

Parameters

startinterval	The interval of x that the search will be inited by. Note that the search can go outside of this interval.
limitinterval	Set to true if only solutions within the interval is permitted

Member Data Documentation

◆ a_

float ExtremeFinder1D::a_

protected

◆ ax_

float ExtremeFinder1D::ax_

protected

◆ b_

float ExtremeFinder1D::b_

protected

◆ bx_

float ExtremeFinder1D::bx_

protected

◆ cx_

float ExtremeFinder1D::cx_

protected

◆ d_

float ExtremeFinder1D::d_

protected

◆ e_

float ExtremeFinder1D::e_

protected

◆ func_

const FloatMathFunction& ExtremeFinder1D::func_

protected

◆ fv_

float ExtremeFinder1D::fv_

protected

◆ fw_

float ExtremeFinder1D::fw_

protected

◆ fx_

float ExtremeFinder1D::fx_

protected

◆ iter_

int ExtremeFinder1D::iter_

protected

◆ itermax_

const int ExtremeFinder1D::itermax_

protected

◆ limits_

Interval<float>* ExtremeFinder1D::limits_

protected

◆ max_

const bool ExtremeFinder1D::max_

protected

◆ tol_

const float ExtremeFinder1D::tol_

protected

◆ u_

float ExtremeFinder1D::u_

protected

◆ v_

float ExtremeFinder1D::v_

protected

◆ w_

float ExtremeFinder1D::w_

protected

◆ x_

float ExtremeFinder1D::x_

protected

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ExtremeFinder1D()

◆ ~ExtremeFinder1D()

Member Function Documentation

◆ extremePos()

◆ extremeVal()

◆ nextStep()

◆ nrIter()

◆ reStart()

Member Data Documentation

◆ a_

◆ ax_

◆ b_

◆ bx_

◆ cx_

◆ d_

◆ e_

◆ func_

◆ fv_

◆ fw_

◆ fx_

◆ iter_

◆ itermax_

◆ limits_

◆ max_

◆ tol_

◆ u_

◆ v_

◆ w_

◆ x_