Tensor4 Class Reference

The Tensor4 class. More...

#include <matpackIV.h>

Inheritance diagram for Tensor4:

Public Member Functions
	Tensor4 ()=default
	Tensor4 (Index b, Index p, Index r, Index c)
	Constructor setting size. More...
	Tensor4 (Index b, Index p, Index r, Index c, Numeric fill)
	Constructor setting size and filling with constant value. More...
	Tensor4 (const ConstTensor4View &v)
	Copy constructor from Tensor4View. More...
	Tensor4 (const Tensor4 &v)
	Copy constructor from Tensor4. More...
	Tensor4 (Tensor4 &&v) noexcept
Tensor4 &	operator= (const Tensor4 &x)
	Assignment operator from another tensor. More...
Tensor4 &	operator= (Tensor4 &&x) noexcept
	Move assignment operator from another tensor. More...
Tensor4 &	operator= (Numeric x)
	Assignment operator from scalar. More...
void	resize (Index b, Index p, Index r, Index c)
	Resize function. More...
virtual	~Tensor4 ()
	Destructor for Tensor4. More...
Public Member Functions inherited from Tensor4View
constexpr	Tensor4View (const Tensor4View &)=default
Tensor4View	operator() (const Range &b, const Range &p, const Range &r, const Range &c)
	Index operator for subrange. More...
Tensor3View	operator() (const Range &b, const Range &p, const Range &r, Index c)
	Index operator returning an object of type Tensor3View. More...
Tensor3View	operator() (const Range &b, const Range &p, Index r, const Range &c)
	Index operator returning an object of type Tensor3View. More...
Tensor3View	operator() (const Range &b, Index p, const Range &r, const Range &c)
	Index operator returning an object of type Tensor3View. More...
Tensor3View	operator() (Index b, const Range &p, const Range &r, const Range &c)
	Index operator returning an object of type Tensor3View. More...
MatrixView	operator() (const Range &b, const Range &p, Index r, Index c)
	Index operator returning an object of type MatrixView. More...
MatrixView	operator() (const Range &b, Index p, const Range &r, Index c)
	Index operator returning an object of type MatrixView. More...
MatrixView	operator() (const Range &b, Index p, Index r, const Range &c)
	Index operator returning an object of type MatrixView. More...
MatrixView	operator() (Index b, const Range &p, Index r, const Range &c)
	Index operator returning an object of type MatrixView. More...
MatrixView	operator() (Index b, const Range &p, const Range &r, Index c)
	Index operator returning an object of type MatrixView. More...
MatrixView	operator() (Index b, Index p, const Range &r, const Range &c)
	Index operator returning an object of type MatrixView. More...
VectorView	operator() (const Range &b, Index p, Index r, Index c)
	Index operator returning an object of type VectorView. More...
VectorView	operator() (Index b, const Range &p, Index r, Index c)
	Index operator returning an object of type VectorView. More...
VectorView	operator() (Index b, Index p, const Range &r, Index c)
	Index operator returning an object of type VectorView. More...
VectorView	operator() (Index b, Index p, Index r, const Range &c)
	Index operator returning an object of type VectorView. More...
Numeric &	operator() (Index b, Index p, Index r, Index c)
	Plain non-const index operator. More...
Numeric &	get (Index b, Index p, Index r, Index c)
	Get element implementation without assertions. More...
const Numeric *	get_c_array () const
	Conversion to plain C-array. More...
Numeric *	get_c_array ()
	Conversion to plain C-array. More...
Iterator4D	begin ()
	Return iterator to first book. More...
Iterator4D	end ()
	Return iterator behind last book. More...
Tensor4View &	operator= (const ConstTensor4View &v)
	Assignment operator. More...
Tensor4View &	operator= (const Tensor4View &v)
	Assignment from Tensor4View to Tensor4View. More...
Tensor4View &	operator= (const Tensor4 &v)
	Assignment from a Tensor4. More...
Tensor4View &	operator= (Numeric x)
	Assigning a scalar to a Tensor4View will set all elements to this value. More...
Tensor4View &	operator*= (Numeric x)
	Multiplication by scalar. More...
Tensor4View &	operator/= (Numeric x)
	Division by scalar. More...
Tensor4View &	operator+= (Numeric x)
	Addition of scalar. More...
Tensor4View &	operator-= (Numeric x)
	Subtraction of scalar. More...
Tensor4View &	operator*= (const ConstTensor4View &x)
	Element-vise multiplication by another Tensor4. More...
Tensor4View &	operator/= (const ConstTensor4View &x)
	Element-vise division by another Tensor4. More...
Tensor4View &	operator+= (const ConstTensor4View &x)
	Element-vise addition of another Tensor4. More...
Tensor4View &	operator-= (const ConstTensor4View &x)
	Element-vise subtraction of another Tensor4. More...
virtual	~Tensor4View ()=default
	Destructor. More...
	Tensor4View (const Tensor3View &a)
	Special constructor to make a Tensor4 view of a Tensor3. More...
ConstIterator4D	begin () const
	Return const iterator to first book. More...
ConstIterator4D	end () const
	Return const iterator behind last book. More...
Numeric	get (Index b, Index p, Index r, Index c) const
	Get element implementation without assertions. More...
Public Member Functions inherited from ConstTensor4View
constexpr	ConstTensor4View (const ConstTensor4View &)=default
constexpr	ConstTensor4View (ConstTensor4View &&)=default
ConstTensor4View &	operator= (const ConstTensor4View &)=default
ConstTensor4View &	operator= (ConstTensor4View &&)=default
bool	empty () const
	Check if variable is empty. More...
Index	nbooks () const
	Returns the number of books. More...
Index	npages () const
	Returns the number of pages. More...
Index	nrows () const
	Returns the number of rows. More...
Index	ncols () const
	Returns the number of columns. More...
ConstTensor4View	operator() (const Range &b, const Range &p, const Range &r, const Range &c) const
	Const index operator for subrange. More...
ConstTensor3View	operator() (const Range &b, const Range &p, const Range &r, Index c) const
	Const index operator returning an object of type ConstTensor3View. More...
ConstTensor3View	operator() (const Range &b, const Range &p, Index r, const Range &c) const
	Const index operator returning an object of type ConstTensor3View. More...
ConstTensor3View	operator() (const Range &b, Index p, const Range &r, const Range &c) const
	Const index operator returning an object of type ConstTensor3View. More...
ConstTensor3View	operator() (Index b, const Range &p, const Range &r, const Range &c) const
	Const index operator returning an object of type ConstTensor3View. More...
ConstMatrixView	operator() (const Range &b, const Range &p, Index r, Index c) const
	Const index operator returning an object of type ConstMatrixView. More...
ConstMatrixView	operator() (const Range &b, Index p, const Range &r, Index c) const
	Const index operator returning an object of type ConstMatrixView. More...
ConstMatrixView	operator() (const Range &b, Index p, Index r, const Range &c) const
	Const index operator returning an object of type ConstMatrixView. More...
ConstMatrixView	operator() (Index b, const Range &p, Index r, const Range &c) const
	Const index operator returning an object of type ConstMatrixView. More...
ConstMatrixView	operator() (Index b, const Range &p, const Range &r, Index c) const
	Const index operator returning an object of type ConstMatrixView. More...
ConstMatrixView	operator() (Index b, Index p, const Range &r, const Range &c) const
	Const index operator returning an object of type ConstMatrixView. More...
ConstVectorView	operator() (const Range &b, Index p, Index r, Index c) const
	Const index operator returning an object of type ConstVectorView. More...
ConstVectorView	operator() (Index b, const Range &p, Index r, Index c) const
	Const index operator returning an object of type ConstVectorView. More...
ConstVectorView	operator() (Index b, Index p, const Range &r, Index c) const
	Const index operator returning an object of type ConstVectorView. More...
ConstVectorView	operator() (Index b, Index p, Index r, const Range &c) const
	Const index operator returning an object of type ConstVectorView. More...
Numeric	operator() (Index b, Index p, Index r, Index c) const
	Plain const index operator. More...
Numeric	get (Index b, Index p, Index r, Index c) const
	Get element implementation without assertions. More...
ConstIterator4D	begin () const
	Return const iterator to first book. More...
ConstIterator4D	end () const
	Return const iterator behind last book. More...
virtual	~ConstTensor4View ()=default
	Destructor. More...
	ConstTensor4View (const ConstTensor3View &a)
	Special constructor to make a Tensor4 view of a Tensor3. More...

Friends
void	swap (Tensor4 &t1, Tensor4 &t2)
	Swaps two objects. More...

Additional Inherited Members
Protected Member Functions inherited from Tensor4View
	Tensor4View ()=default
	Tensor4View (Numeric *data, const Range &b, const Range &p, const Range &r, const Range &c)
	Explicit constructor. More...
	Tensor4View (Numeric *data, const Range &pb, const Range &pp, const Range &pr, const Range &pc, const Range &nb, const Range &np, const Range &nr, const Range &nc)
	Recursive constructor. More...
Protected Member Functions inherited from ConstTensor4View
	ConstTensor4View ()=default
	ConstTensor4View (Numeric *data, const Range &b, const Range &p, const Range &r, const Range &c)
	Explicit constructor. More...
	ConstTensor4View (Numeric *data, const Range &pb, const Range &pp, const Range &pr, const Range &pc, const Range &nb, const Range &np, const Range &nr, const Range &nc)
	Recursive constructor. More...
Protected Attributes inherited from ConstTensor4View
Range	mbr {0, 0, 1}
	The book range of mdata that is actually used. More...
Range	mpr {0, 0, 1}
	The page range of mdata that is actually used. More...
Range	mrr {0, 0, 1}
	The row range of mdata that is actually used. More...
Range	mcr {0, 0, 1}
	The column range of mdata that is actually used. More...
Numeric *	mdata {nullptr}
	Pointer to the plain C array that holds the data. More...

Detailed Description

The Tensor4 class.

This is a Tensor4View that also allocates storage automatically, and deallocates it when it is destroyed. We take all the functionality from Tensor4View. Additionally defined here are:

1. Constructors and destructor.
2. Assignment operators.
3. Resize function.

Definition at line 421 of file matpackIV.h.

Constructor & Destructor Documentation

Tensor4() [1/6]

Tensor4::Tensor4 ( )

default

Tensor4() [2/6]

Tensor4::Tensor4	(	Index	b,
		Index	p,
		Index	r,
		Index	c
	)

Constructor setting size.

This constructor has to set the strides in the book, page and row ranges correctly!

Definition at line 952 of file matpackIV.cc.

Tensor4() [3/6]

Tensor4::Tensor4	(	Index	b,
		Index	p,
		Index	r,
		Index	c,
		Numeric	fill
	)

Constructor setting size and filling with constant value.

Definition at line 962 of file matpackIV.cc.

Tensor4() [4/6]

Tensor4::Tensor4

(

const ConstTensor4View &

m

)

Copy constructor from Tensor4View.

This automatically sets the size and copies the data.

Definition at line 975 of file matpackIV.cc.

References Tensor4View::begin(), ConstTensor4View::begin(), copy(), and ConstTensor4View::end().

Tensor4() [5/6]

Tensor4::Tensor4

(

const Tensor4 &

m

)

Copy constructor from Tensor4.

This automatically sets the size and copies the data.

Definition at line 986 of file matpackIV.cc.

References ConstTensor4View::mdata, ConstTensor4View::nbooks(), ConstTensor4View::ncols(), ConstTensor4View::npages(), and ConstTensor4View::nrows().

Tensor4() [6/6]

Tensor4::Tensor4 ( Tensor4 &&  v )

inlinenoexcept

Definition at line 429 of file matpackIV.h.

~Tensor4()

Tensor4::~Tensor4 ( )

virtual

Destructor for Tensor4.

This is important, since Tensor4 uses new to allocate storage.

Definition at line 1104 of file matpackIV.cc.

References ConstTensor4View::mdata.

Member Function Documentation

operator=() [1/3]

Tensor4 & Tensor4::operator=

(

const Tensor4 &

x

)

Assignment operator from another tensor.

While dimensions of views can not be adjusted, dimensions of tensors can be adjusted. Hence, the behavior of the assignment operator is different.

In this case the size of the target is automatically adjusted. This is important, so that structures containing tensors are copied correctly.

This is a deviation from the old ARTS paradigm that sizes must match exactly before copying!

Note: It is sufficient to have only this one version of the assignment (Tensor = Tensor). It implicitly covers the cases Tensor=TensorView, etc, because there is a default constructor for Tensor from TensorView. (See C++ Primer Plus, page 571ff.)

Parameters

m	The other tensor to assign to this one.

Returns

This tensor, by tradition.

Author

Stefan Buehler

Date

2002-12-19

Definition at line 1026 of file matpackIV.cc.

References ConstTensor4View::mdata, ConstTensor4View::nbooks(), ConstTensor4View::ncols(), ConstTensor4View::npages(), ConstTensor4View::nrows(), resize(), and ARTS::Var::x().

operator=() [2/3]

Tensor4 & Tensor4::operator=

(

Numeric

x

)

Assignment operator from scalar.

Assignment operators are not inherited.

Definition at line 1056 of file matpackIV.cc.

References ConstTensor4View::mdata, ConstTensor4View::nbooks(), ConstTensor4View::ncols(), ConstTensor4View::npages(), ConstTensor4View::nrows(), and ARTS::Var::x().

operator=() [3/3]

Tensor4 & Tensor4::operator= ( Tensor4 &&  x )

noexcept

Move assignment operator from another tensor.

Definition at line 1037 of file matpackIV.cc.

References ARTS::Var::x().

resize()

void Tensor4::resize	(	Index	b,
		Index	p,
		Index	r,
		Index	c
	)

Resize function.

If the size is already correct this function does nothing. All data is lost after resizing! The new tensor is not initialized, so it will contain random values.

Definition at line 1064 of file matpackIV.cc.

Referenced by antenna_responseGaussian(), antenna_responseVaryingGaussian(), Append(), AtmFieldPRegrid(), Extract(), FieldFromGriddedField(), irradiance_fieldFromRadiance(), iyIndependentBeamApproximation(), nca_get_data_Tensor4(), nca_read_from_file(), StokesVector::operator=(), operator=(), PropagationMatrix::PropagationMatrix(), RadiationFieldSpectralIntegrate(), Reduce(), GriddedField4::resize(), StokesVector::StokesVector(), Tensor4AddScalar(), Tensor4Scale(), test_empty(), and xml_read_from_stream().

Friends And Related Function Documentation

swap

void swap ( Tensor4 &  t1, Tensor4 &  t2  )

friend

Swaps two objects.

Definition at line 1094 of file matpackIV.cc.

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

• matpackIV.h
• matpackIV.cc