Class for representation of a vector of fields of the same physical quantity. More...

#include <multi_field.hh>

Inheritance diagram for MultiField< spacedim, Value >:

Collaboration diagram for MultiField< spacedim, Value >:

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Classes
class	MultiFieldFactory

Public Types
typedef FieldAlgorithmBase< spacedim, Value >	SubFieldBaseType

typedef Field< spacedim, Value >	SubFieldType

typedef FieldAlgorithmBase< spacedim, Value >::Point	Point

typedef FieldValue_< 0, 1, typename Value::element_type >	MultiFieldValue

Public Member Functions
	TYPEDEF_ERR_INFO (EI_MultiFieldName, const string)

	TYPEDEF_ERR_INFO (EI_Size, unsigned int)

	TYPEDEF_ERR_INFO (EI_ExpectedSize, unsigned int)

	DECLARE_INPUT_EXCEPTION (Exc_InvalidMultiFieldSize,<< "Invalid size "<< EI_Size::val<< "of the MultiField "<< EI_MultiFieldName::qval<< ", expected size: "<< EI_ExpectedSize::val)

	MultiField (bool bc=false)

	MultiField (const MultiField &other)

MultiField &	operator= (const MultiField &other)

IT::Instance	get_input_type () override

IT::Array	get_multifield_input_type () override

auto	disable_where (const MultiField< spacedim, typename FieldValue< spacedim >::Enum > &control_field, const vector< FieldEnum > &value_list) -> MultiField &

bool	set_time (const TimeStep &time, LimitSide limit_side) override

void	set_mesh (const Mesh &mesh) override

void	copy_from (const FieldCommon &other) override

void	field_output (std::shared_ptr< OutputTime > stream) override

void	observe_output (std::shared_ptr< Observe > observe) override

bool	is_constant (Region reg) override

FieldResult	field_result (RegionSet region_set) const override
	Indicates special field states. More...

std::string	get_value_attribute () const override

virtual	~MultiField ()

unsigned int	size () const
	Number of subfields that compose the multi-field. More...

SubFieldType &	operator[] (unsigned int idx)

const SubFieldType &	operator[] (unsigned int idx) const

void	setup_components ()

void	set_input_list (const Input::Array &list, const TimeGovernor &tg) override

Public Member Functions inherited from FieldCommon
	TYPEDEF_ERR_INFO (EI_Time, double)

	TYPEDEF_ERR_INFO (EI_Field, std::string)

	DECLARE_INPUT_EXCEPTION (ExcNonascendingTime,<< "Non-ascending time: "<< EI_Time::val<< " for field "<< EI_Field::qval<< ".\n")

	DECLARE_INPUT_EXCEPTION (ExcMissingDomain,<< "Missing domain specification (region or r_id) in the field descriptor:")

	DECLARE_EXCEPTION (ExcFieldMeshDifference,<< "Two copies of the field "<< EI_Field::qval<< "call set_mesh with different arguments.\n")

FieldCommon &	name (const string &name)

FieldCommon &	description (const string &description)

FieldCommon &	input_default (const string &input_default)

FieldCommon &	units (const UnitSI &units)
	Set basic units of the field. More...

FieldCommon &	set_limits (double min, double max=std::numeric_limits< double >::max())

FieldCommon &	input_selection (Input::Type::Selection element_selection)

FieldCommon &	output_type (OutputTime::DiscreteSpace rt)

FieldCommon &	flags (FieldFlag::Flags::Mask mask)

FieldCommon &	flags_add (FieldFlag::Flags::Mask mask)

void	set_components (const std::vector< string > &names)

const std::string &	input_name () const

const std::string &	name () const

const std::string	description () const

const std::string &	input_default () const

const UnitSI &	units () const

std::pair< double, double >	limits () const

OutputTime::DiscreteSpace	get_output_type () const

bool	is_bc () const

unsigned int	n_comp () const

const Mesh *	mesh () const

FieldFlag::Flags &	flags ()

FieldFlag::Flags	get_flags () const

double	time () const

bool	is_jump_time ()

unsigned int	input_list_size () const

bool	changed () const

void	mark_input_times (const TimeGovernor &tg)

void	set_component_index (unsigned int idx)

bool	is_multifield () const

virtual	~FieldCommon ()

Private Attributes
std::vector< SubFieldType >	sub_fields_
	Subfields (items) of MultiField. More...

Input::Array	full_input_list_
	Full list of input field descriptors from which the subfields of MultiField are set. More...

const TimeGovernor *	tg_
	TimeGovernor is necessary for set input list in setup_components method. More...

const MultiField< spacedim, typename FieldValue< spacedim >::Enum > *	no_check_control_field_

Additional Inherited Members
Static Public Member Functions inherited from FieldCommon
static IT::Record	field_descriptor_record (const string &record_name)

static const std::string	field_descriptor_record_description (const string &record_name)

static bool	print_message_table (ostream &stream, std::string equation_name)

Protected Types inherited from FieldCommon
enum	TimeStatus { TimeStatus::changed, TimeStatus::constant, TimeStatus::unknown }

Protected Member Functions inherited from FieldCommon
	FieldCommon ()

	FieldCommon (const FieldCommon &other)

void	set_history_changed ()

Protected Attributes inherited from FieldCommon
std::string	name_

std::shared_ptr< SharedData >	shared_

TimeStatus	set_time_result_

double	last_time_ = -numeric_limits<double>::infinity()

LimitSide	last_limit_side_ = LimitSide::left

bool	is_jump_time_

OutputTime::DiscreteSpace	type_of_output_data_ = OutputTime::ELEM_DATA

unsigned int	component_index_

bool	multifield_

FieldFlag::Flags	flags_ = FieldFlag::declare_input & FieldFlag::equation_input & FieldFlag::allow_output
	Field flags. Default setting is "an equation input field, that can read from user input, and can be written to output". More...

Static Protected Attributes inherited from FieldCommon
static const unsigned int	history_length_limit_ =3

static std::vector< MessageData >	messages_data_ = std::vector<FieldCommon::MessageData>()
	Vector of data of initialization messages. More...

Detailed Description

template<int spacedim, class Value>
class MultiField< spacedim, Value >

Class for representation of a vector of fields of the same physical quantity.

When solving a system of same equations with the number of components given at runtime (as in the case of transport equation for runtime given number of substances) we need means how to work with the whole vector of fields at once. This is the aim of this class. It provides the interface given by the parent class FieldCommonBase, but principally it is just a vector of Field<Value,dim> objects. The sub-fields or components of a MultiField are independent objects, how ever the setters propagates the values from the MultiFields to the individual fields. The only exception is the set_name method which in conjunction with MultiField::set_subfield_names can set unique name to each component.

Template parameters are used for every subfield.

TODO:

general mechanism how to convert a Field< dim, Vector> to MultiField< dim, Value>
implement set_from_input
implement set_Time
problem with "input" methods, since Field works with AbstratRecord, the MultiField - However - should use Array of Abstracts simplest solution - test that in EqDataBase and have more methods in FieldCommonBase, or somehow detach input handling from Fields

Definition of MultiField must be in separate file. In other case source file field.cc is too big and compiler can throw compile error.

Definition at line 87 of file multi_field.hh.

Member Typedef Documentation

template<int spacedim, class Value>

typedef FieldValue_<0,1,typename Value::element_type> MultiField< spacedim, Value >::MultiFieldValue

Definition at line 92 of file multi_field.hh.

template<int spacedim, class Value>

typedef FieldAlgorithmBase<spacedim, Value>::Point MultiField< spacedim, Value >::Point

Definition at line 91 of file multi_field.hh.

template<int spacedim, class Value>

typedef FieldAlgorithmBase<spacedim, Value> MultiField< spacedim, Value >::SubFieldBaseType

Definition at line 89 of file multi_field.hh.

template<int spacedim, class Value>

typedef Field<spacedim, Value> MultiField< spacedim, Value >::SubFieldType

Definition at line 90 of file multi_field.hh.

Constructor & Destructor Documentation

template<int spacedim, class Value >

MultiField< spacedim, Value >::MultiField ( bool bc = false )

Default constructor. bc indicates boundary multifield.

Definition at line 34 of file multi_field.impl.hh.

template<int spacedim, class Value >

MultiField< spacedim, Value >::MultiField ( const MultiField< spacedim, Value > & other )

Copy constructor.

Definition at line 46 of file multi_field.impl.hh.

template<int spacedim, class Value>

virtual MultiField< spacedim, Value >::~MultiField ( )

inlinevirtual

Virtual destructor.

Definition at line 203 of file multi_field.hh.

Member Function Documentation

template<int spacedim, class Value >

void MultiField< spacedim, Value >::copy_from ( const FieldCommon & other )

overridevirtual

Polymorphic copy. Check correct type, allows copy of MultiField or Field.

Implements FieldCommon.

Definition at line 170 of file multi_field.impl.hh.

template<int spacedim, class Value>

MultiField< spacedim, Value >::DECLARE_INPUT_EXCEPTION	(	Exc_InvalidMultiFieldSize	,
		<< "Invalid size "<< EI_Size::val<< "of the MultiField< spacedim, Value > "<< EI_MultiFieldName::qval<< "	,
		expected size:"<< EI_ExpectedSize::val
	)

template<int spacedim, class Value >

auto MultiField< spacedim, Value >::disable_where	(	const MultiField< spacedim, typename FieldValue< spacedim >::Enum > &	control_field,
		const vector< FieldEnum > &	value_list
	)		-> MultiField &

By this method you can allow that the field need not to be set on regions (and times) where the given control_field is FieldConstant and has value in given value_list. We check this in the set_time method. Through this mechanism we can switch of e.g. boundary data fields according to the type of the boundary condition.

Definition at line 126 of file multi_field.impl.hh.

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template<int spacedim, class Value >

void MultiField< spacedim, Value >::field_output ( std::shared_ptr< OutputTime > stream )

overridevirtual

Implementation of FieldCommonBase::output().

Implements FieldCommon.

Definition at line 191 of file multi_field.impl.hh.

template<int spacedim, class Value >

FieldResult MultiField< spacedim, Value >::field_result ( RegionSet region_set ) const

overridevirtual

Indicates special field states.

Return possible values from the enum FieldResult, see description there.

Only difference to Field<>::field_result is meaning of result_constant. Here we return this value if all subfields are (possibly different) constants.

Not used yet. Possibly tune behavior after usage.

Implements FieldCommon.

Definition at line 224 of file multi_field.impl.hh.

template<int spacedim, class Value >

it::Instance MultiField< spacedim, Value >::get_input_type ( )

overridevirtual

Returns input type of particular field instance, this is usually static member input_type of the corresponding FieldBase class ( with same template parameters), however, for fields returning "Enum" we have to create whole unique Input::Type hierarchy for every instance since every such field use different Selection for initialization, even if all returns just unsigned int.

Implements FieldCommon.

Definition at line 109 of file multi_field.impl.hh.

template<int spacedim, class Value >

it::Array MultiField< spacedim, Value >::get_multifield_input_type ( )

overridevirtual

Returns input type for MultiField instance. TODO: temporary solution, see multifield_

Implements FieldCommon.

Definition at line 119 of file multi_field.impl.hh.

template<int spacedim, class Value >

std::string MultiField< spacedim, Value >::get_value_attribute ( ) const

overridevirtual

Return specification of the field value type in form of the string: [ <element type>="">, NRows, NCols]

Result is valid JSON (and/or flow style YAML). For multifields not implemented.

Implements FieldCommon.

Definition at line 247 of file multi_field.impl.hh.

template<int spacedim, class Value >

bool MultiField< spacedim, Value >::is_constant ( Region reg )

overridevirtual

Implementation of FieldCommonBase::is_constant().

Implements FieldCommon.

Definition at line 217 of file multi_field.impl.hh.

template<int spacedim, class Value >

void MultiField< spacedim, Value >::observe_output ( std::shared_ptr< Observe > observe )

overridevirtual

Implementation of FieldCommonBase::observe_output().

Implements FieldCommon.

Definition at line 208 of file multi_field.impl.hh.

template<int spacedim, class Value >

MultiField< spacedim, Value > & MultiField< spacedim, Value >::operator= ( const MultiField< spacedim, Value > & other )

Assignment operator. Same properties as copy constructor, but class member name_ is not copied.

Definition at line 58 of file multi_field.impl.hh.

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template<int spacedim, class Value>

SubFieldType& MultiField< spacedim, Value >::operator[] ( unsigned int idx )

inline

Returns reference to the sub-field (component) of given index idx.

Definition at line 212 of file multi_field.hh.

template<int spacedim, class Value>

const SubFieldType& MultiField< spacedim, Value >::operator[] ( unsigned int idx ) const

inline

Returns constant reference to the sub-field (component) of given index idx.

Definition at line 221 of file multi_field.hh.

template<int spacedim, class Value >

void MultiField< spacedim, Value >::set_input_list	(	const Input::Array &	list,
		const TimeGovernor &	tg
	)

overridevirtual

Returns vector of value in one given point on an element given by ElementAccessor elm. It returns reference to he actual value in order to avoid temporaries for vector and tensor values. Returns std::vector of vector values in several points at once. The base class implements trivial implementation using the value(,,) method. This is not optimal as it involves lot of virtual calls, but this overhead can be negligible for more complex fields as Python of Formula.

Implements FieldCommon.

Definition at line 297 of file multi_field.impl.hh.

template<int spacedim, class Value >

void MultiField< spacedim, Value >::set_mesh ( const Mesh & mesh )

overridevirtual

We have to override the set_mesh method in order to call set_mesh method for subfields.

Reimplemented from FieldCommon.

Definition at line 159 of file multi_field.impl.hh.

template<int spacedim, class Value >

bool MultiField< spacedim, Value >::set_time	(	const TimeStep &	time,
		LimitSide	limit_side
	)

overridevirtual

Abstract method to update field to the new time level. Implemented by in class template Field<...>.

Return true if the value of the field was changed on some region. The returned value is also stored in changed_during_set_time data member.

In first call initialize MultiField to the number of components given by the size of names and use this vector to name individual components. Should be called after the setters derived from FieldCommonBase.

Implements FieldCommon.

Definition at line 137 of file multi_field.impl.hh.

template<int spacedim, class Value >

void MultiField< spacedim, Value >::setup_components ( )

Initialize components of MultiField.

Must be call after setting components, mesh and limit side.

Definition at line 261 of file multi_field.impl.hh.

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template<int spacedim, class Value>

unsigned int MultiField< spacedim, Value >::size ( ) const

inline

Number of subfields that compose the multi-field.

Definition at line 206 of file multi_field.hh.

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template<int spacedim, class Value>

MultiField< spacedim, Value >::TYPEDEF_ERR_INFO	(	EI_MultiFieldName	,
		const string
	)

template<int spacedim, class Value>

MultiField< spacedim, Value >::TYPEDEF_ERR_INFO	(	EI_Size	,
		unsigned	int
	)

template<int spacedim, class Value>

MultiField< spacedim, Value >::TYPEDEF_ERR_INFO	(	EI_ExpectedSize	,
		unsigned	int
	)

Member Data Documentation

template<int spacedim, class Value>

Input::Array MultiField< spacedim, Value >::full_input_list_

private

Full list of input field descriptors from which the subfields of MultiField are set.

Definition at line 255 of file multi_field.hh.

template<int spacedim, class Value>

const MultiField<spacedim, typename FieldValue<spacedim>::Enum >* MultiField< spacedim, Value >::no_check_control_field_

private

If this pointer is set, turn off check of initialization in the set_time method on the regions where the method get_constant_enum_value of the control field returns value from no_check_values_. This field is private copy, its set_time method is called from the set_Time method of actual object.

Definition at line 267 of file multi_field.hh.

template<int spacedim, class Value>

std::vector< SubFieldType > MultiField< spacedim, Value >::sub_fields_

private

Subfields (items) of MultiField.

Definition at line 252 of file multi_field.hh.

template<int spacedim, class Value>

const TimeGovernor* MultiField< spacedim, Value >::tg_

private

TimeGovernor is necessary for set input list in setup_components method.

Definition at line 258 of file multi_field.hh.

The documentation for this class was generated from the following files:

/opt/flow123d/flow123d/src/fields/multi_field.hh
/opt/flow123d/flow123d/src/fields/multi_field.impl.hh

Classes

Public Types

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

template<int spacedim, class Value> class MultiField< spacedim, Value >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<int spacedim, class Value>
class MultiField< spacedim, Value >