Vector expression proxy that views a contiguous half-open subrange of an underlying vector. More...

Inheritance diagram for CDPL.Math.DVectorRange:

Public Member Functions
None	__init__ (DVectorRange r)
	Contructs a copy of the `DVectorRange` instance r. More...

None	__init__ (DVectorExpression e, Range r)
	Contructs the `DVectorRange` instance. More...

int	getStart ()
	Returns the start index of the viewed range within the wrapped vector. More...

int	getObjectID ()
	Returns the numeric identifier (ID) of the wrapped C++ class instance. More...

DVectorRange	assign (ConstFVectorExpression e)
	Assigns the vector expression e to this view (writing through to the wrapped vector). More...

DVectorRange	assign (ConstDVectorExpression e)
	Assigns the vector expression e to this view (writing through to the wrapped vector). More...

DVectorRange	assign (ConstLVectorExpression e)
	Assigns the vector expression e to this view (writing through to the wrapped vector). More...

DVectorRange	assign (ConstULVectorExpression e)
	Assigns the vector expression e to this view (writing through to the wrapped vector). More...

DVectorRange	assign (DVectorRange r)
	Copies the elements of r into this view (writing through to the wrapped vector). More...

DVectorRange	assign (object a)
	Assigns the contents of the `numpy.ndarray` object a to this view. More...

bool	isEmpty ()
	Tells whether the view is empty (zero-length range). More...

int	getSize ()
	Returns the size of the view (number of elements covered by the range). More...

float	getElement (int i)
	Returns the element at index i of the view. More...

object	toArray ()
	Converts the `DVectorRange` instance into a corresponding `numpy.ndarray` object. More...

None	swap (DVectorRange r)
	Swaps the elements of this view with those of r. More...

None	setElement (int i, float v)
	Sets the value of the element at index i of the view to v. More...

DVectorExpression	getData ()
	Returns the wrapped vector. More...

bool	__eq__ (DVectorRange r)
	Returns the result of the comparison operation `self == r`. More...

bool	__eq__ (ConstDVectorExpression e)
	Returns the result of the comparison operation `self == e`. More...

bool	__ne__ (DVectorRange r)
	Returns the result of the comparison operation `self != r`. More...

bool	__ne__ (ConstDVectorExpression e)
	Returns the result of the comparison operation `self != e`. More...

float	__call__ (int i)
	Returns the element at index i of the view. More...

float	__getitem__ (int i)
	Returns the element at index i of the view. More...

int	__len__ ()
	Returns the size of the view (number of elements covered by the range). More...

str	__str__ ()
	Returns a string representation of the `DVectorRange` instance. More...

DVectorRange	__pos__ ()
	Returns self. More...

ConstDVectorExpression	__neg__ ()
	Returns the result of the operation `self * -1`. More...

ConstDVectorExpression	__add__ (ConstDVectorExpression e)
	Returns the result of the addition operation `self + e`. More...

ConstDVectorExpression	__sub__ (ConstDVectorExpression e)
	Returns the result of the subtraction operation `self - e`. More...

ConstDVectorExpression	__mul__ (float t)
	Returns the result of the multiplication operation `self * t`. More...

ConstDVectorExpression	__mul__ (ConstDMatrixExpression e)
	Returns the result of the multiplication operation `self * e`. More...

ConstDVectorExpression	__div__ (float t)
	Returns the result of the division operation `self // t`. More...

ConstDVectorExpression	__truediv__ (float t)
	Returns the result of the true division operation `self / t`. More...

ConstDVectorExpression	__rmul__ (float t)
	Returns the result of the multiplication operation `t * self`. More...

None	__setitem__ (int i, float v)
	Sets the value of the element at index i of the view to v. More...

DVectorRange	__iadd__ (DVectorRange r)
	Adds the vector range r componentwise to this view. More...

DVectorRange	__iadd__ (ConstDVectorExpression e)
	Adds the vector expression e componentwise to this view. More...

DVectorRange	__isub__ (DVectorRange r)
	Subtracts the vector range r componentwise from this view. More...

DVectorRange	__isub__ (ConstDVectorExpression e)
	Subtracts the vector expression e componentwise from this view. More...

DVectorRange	__imul__ (float t)
	Multiplies every element of this view by the scalar t. More...

DVectorRange	__idiv__ (float t)
	Divides every element of this view by the scalar t. More...

DVectorRange	__itruediv__ (float t)
	Divides every element of this view by the scalar t. More...

Properties
	objectID = property(getObjectID)

	size = property(getSize)

	data = property(getData)

	start = property(getStart)

Detailed Description

Vector expression proxy that views a contiguous half-open subrange of an underlying vector.

Constructor & Destructor Documentation

◆ init() [1/2]

None CDPL.Math.DVectorRange.__init__ ( DVectorRange r )

Contructs a copy of the DVectorRange instance r.

Parameters

r	The `DVectorRange` instance to copy.

◆ init() [2/2]

None CDPL.Math.DVectorRange.__init__	(	DVectorExpression	e,
		Range	r
	)

Contructs the DVectorRange instance.

Parameters

e
r

Member Function Documentation

◆ getStart()

int CDPL.Math.DVectorRange.getStart ( )

Returns the start index of the viewed range within the wrapped vector.

Returns: The start index of the range.

◆ getObjectID()

int CDPL.Math.DVectorRange.getObjectID ( )

Returns the numeric identifier (ID) of the wrapped C++ class instance.

Different Python DVectorRange instances may reference the same underlying C++ class instance. The commonly used Python expression a is not b thus cannot tell reliably whether the two DVectorRange instances a and b reference different C++ objects. The numeric identifier returned by this method allows to correctly implement such an identity test via the simple expression a.getObjectID() != b.getObjectID().

Returns: The numeric ID of the internally referenced C++ class instance.

◆ assign() [1/6]

DVectorRange CDPL.Math.DVectorRange.assign ( ConstFVectorExpression e )

Assigns the vector expression e to this view (writing through to the wrapped vector).

Parameters

e	The source vector expression.

Returns: self.

◆ assign() [2/6]

DVectorRange CDPL.Math.DVectorRange.assign ( ConstDVectorExpression e )

Assigns the vector expression e to this view (writing through to the wrapped vector).

Parameters

e	The source vector expression.

Returns: self.

◆ assign() [3/6]

DVectorRange CDPL.Math.DVectorRange.assign ( ConstLVectorExpression e )

Assigns the vector expression e to this view (writing through to the wrapped vector).

Parameters

e	The source vector expression.

Returns: self.

◆ assign() [4/6]

DVectorRange CDPL.Math.DVectorRange.assign ( ConstULVectorExpression e )

Assigns the vector expression e to this view (writing through to the wrapped vector).

Parameters

e	The source vector expression.

Returns: self.

◆ assign() [5/6]

DVectorRange CDPL.Math.DVectorRange.assign ( DVectorRange r )

Copies the elements of r into this view (writing through to the wrapped vector).

Parameters

r	The source range view.

Returns: self.

◆ assign() [6/6]

DVectorRange CDPL.Math.DVectorRange.assign ( object a )

Assigns the contents of the numpy.ndarray object a to this view.

Parameters

a	The `numpy.ndarray` object.

See also: [NUMPY]

◆ isEmpty()

bool CDPL.Math.DVectorRange.isEmpty ( )

Tells whether the view is empty (zero-length range).

Returns: True if the range is empty, and False otherwise.

◆ getSize()

int CDPL.Math.DVectorRange.getSize ( )

Returns the size of the view (number of elements covered by the range).

Returns: The number of elements in the view.

◆ getElement()

float CDPL.Math.DVectorRange.getElement ( int i )

Returns the element at index i of the view.

Parameters

i	The zero-based index within the view.

Returns: The value of the element v(range(i)).

◆ toArray()

object CDPL.Math.DVectorRange.toArray ( )

Converts the DVectorRange instance into a corresponding numpy.ndarray object.

Returns: The generated numpy.ndarray object.

See also: [NUMPY]

◆ swap()

None CDPL.Math.DVectorRange.swap ( DVectorRange r )

Swaps the elements of this view with those of r.

Parameters

r	The view to swap with.

◆ setElement()

None CDPL.Math.DVectorRange.setElement	(	int	i,
		float	v
	)

Sets the value of the element at index i of the view to v.

Parameters

i	The zero-based index within the view.
v	The new value of the element.

Exceptions

Base.IndexError if i is not in the range [0, getSize()).

◆ getData()

DVectorExpression CDPL.Math.DVectorRange.getData ( )

Returns the wrapped vector.

Returns: The wrapped vector closure.

◆ eq() [1/2]

bool CDPL.Math.DVectorRange.__eq__ ( DVectorRange r )

Returns the result of the comparison operation self == r.

Parameters

r	The `DVectorRange` instance to be compared with.

Returns: The result of the comparison operation.

◆ eq() [2/2]

bool CDPL.Math.DVectorRange.__eq__ ( ConstDVectorExpression e )

Returns the result of the comparison operation self == e.

Parameters

e	The `ConstDVectorExpression` instance to be compared with.

Returns: The result of the comparison operation.

◆ ne() [1/2]

bool CDPL.Math.DVectorRange.__ne__ ( DVectorRange r )

Returns the result of the comparison operation self != r.

Parameters

r	The `DVectorRange` instance to be compared with.

Returns: The result of the comparison operation.

◆ ne() [2/2]

bool CDPL.Math.DVectorRange.__ne__ ( ConstDVectorExpression e )

Returns the result of the comparison operation self != e.

Parameters

e	The `ConstDVectorExpression` instance to be compared with.

Returns: The result of the comparison operation.

◆ call()

float CDPL.Math.DVectorRange.__call__ ( int i )

Returns the element at index i of the view.

Parameters

i	The zero-based index within the view.

Returns: The value of the element v(range(i)).

◆ getitem()

float CDPL.Math.DVectorRange.__getitem__ ( int i )

Returns the element at index i of the view.

Parameters

i	The zero-based index within the view.

Returns: The value of the element v(range(i)).

◆ len()

int CDPL.Math.DVectorRange.__len__ ( )

Returns the size of the view (number of elements covered by the range).

Returns: The number of elements in the view.

◆ str()

str CDPL.Math.DVectorRange.__str__ ( )

Returns a string representation of the DVectorRange instance.

Returns: The generated string representation.

◆ pos()

DVectorRange CDPL.Math.DVectorRange.__pos__ ( )

Returns self.

Returns: self.

◆ neg()

ConstDVectorExpression CDPL.Math.DVectorRange.__neg__ ( )

Returns the result of the operation self * -1.

Returns: A ConstDVectorExpression instance holding the result of the element negation.

◆ add()

ConstDVectorExpression CDPL.Math.DVectorRange.__add__ ( ConstDVectorExpression e )

Returns the result of the addition operation self + e.

Parameters

e	Specifies the second addend.

Returns: A ConstDVectorExpression instance holding the result of the addition.

◆ sub()

ConstDVectorExpression CDPL.Math.DVectorRange.__sub__ ( ConstDVectorExpression e )

Returns the result of the subtraction operation self - e.

Parameters

e	Specifies the subtrahend.

Returns: A DVectorRange instance holding the result of the subtraction.

◆ mul() [1/2]

ConstDVectorExpression CDPL.Math.DVectorRange.__mul__ ( float t )

Returns the result of the multiplication operation self * t.

Parameters

t	Specifies the multiplier.

Returns: A ConstDVectorExpression instance holding the result of the multiplication.

◆ mul() [2/2]

ConstDVectorExpression CDPL.Math.DVectorRange.__mul__ ( ConstDMatrixExpression e )

Returns the result of the multiplication operation self * e.

Parameters

e	Specifies the multiplier.

Returns: A ConstDVectorExpression instance holding the result of the multiplication.

◆ div()

ConstDVectorExpression CDPL.Math.DVectorRange.__div__ ( float t )

Returns the result of the division operation self // t.

Parameters

t	Specifies the divisor.

Returns: A ConstDVectorExpression instance holding the result of the division.

◆ truediv()

ConstDVectorExpression CDPL.Math.DVectorRange.__truediv__ ( float t )

Returns the result of the true division operation self / t.

Parameters

t	Specifies the divisor.

Returns: A ConstDVectorExpression instance holding the result of the division.

◆ rmul()

ConstDVectorExpression CDPL.Math.DVectorRange.__rmul__ ( float t )

Returns the result of the multiplication operation t * self.

Parameters

t	Specifies the multiplicand.

Returns: A ConstDVectorExpression instance holding the result of the multiplication.

◆ setitem()

None CDPL.Math.DVectorRange.__setitem__	(	int	i,
		float	v
	)

Sets the value of the element at index i of the view to v.

Parameters

i	The zero-based index within the view.
v	The new value of the element.

Exceptions

Base.IndexError if i is not in the range [0, getSize()).

◆ iadd() [1/2]

DVectorRange CDPL.Math.DVectorRange.__iadd__ ( DVectorRange r )

Adds the vector range r componentwise to this view.

Parameters

r	The vector range to add.

Returns: self.

◆ iadd() [2/2]

DVectorRange CDPL.Math.DVectorRange.__iadd__ ( ConstDVectorExpression e )

Adds the vector expression e componentwise to this view.

Parameters

e	The vector expression to add.

Returns: self.

◆ isub() [1/2]

DVectorRange CDPL.Math.DVectorRange.__isub__ ( DVectorRange r )

Subtracts the vector range r componentwise from this view.

Parameters

r	The vector range to subtract.

Returns: self.

◆ isub() [2/2]

DVectorRange CDPL.Math.DVectorRange.__isub__ ( ConstDVectorExpression e )

Subtracts the vector expression e componentwise from this view.

Parameters

e	The vector expression to subtract.

Returns: self.

◆ imul()

DVectorRange CDPL.Math.DVectorRange.__imul__ ( float t )

Multiplies every element of this view by the scalar t.

Parameters

t	The scalar multiplier.

Returns: self.

◆ idiv()

DVectorRange CDPL.Math.DVectorRange.__idiv__ ( float t )

Divides every element of this view by the scalar t.

Parameters

t	The scalar divisor.

Returns: self.

◆ itruediv()

DVectorRange CDPL.Math.DVectorRange.__itruediv__ ( float t )

Divides every element of this view by the scalar t.

Parameters

t	The scalar divisor.

Returns: self.

Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

◆ __init__() [1/2]

◆ __init__() [2/2]

Member Function Documentation

◆ getStart()

◆ getObjectID()

◆ assign() [1/6]

◆ assign() [2/6]

◆ assign() [3/6]

◆ assign() [4/6]

◆ assign() [5/6]

◆ assign() [6/6]

◆ isEmpty()

◆ getSize()

◆ getElement()

◆ toArray()

◆ swap()

◆ setElement()

◆ getData()

◆ __eq__() [1/2]

◆ __eq__() [2/2]

◆ __ne__() [1/2]

◆ __ne__() [2/2]

◆ __call__()

◆ __getitem__()

◆ __len__()

◆ __str__()

◆ __pos__()

◆ __neg__()

◆ __add__()

◆ __sub__()

◆ __mul__() [1/2]

◆ __mul__() [2/2]

◆ __div__()

◆ __truediv__()

◆ __rmul__()

◆ __setitem__()

◆ __iadd__() [1/2]

◆ __iadd__() [2/2]

◆ __isub__() [1/2]

◆ __isub__() [2/2]

◆ __imul__()

◆ __idiv__()

◆ __itruediv__()

◆ init() [1/2]

◆ init() [2/2]

◆ eq() [1/2]

◆ eq() [2/2]

◆ ne() [1/2]

◆ ne() [2/2]

◆ call()

◆ getitem()

◆ len()

◆ str()

◆ pos()

◆ neg()

◆ add()

◆ sub()

◆ mul() [1/2]

◆ mul() [2/2]

◆ div()

◆ truediv()

◆ rmul()

◆ setitem()

◆ iadd() [1/2]

◆ iadd() [2/2]

◆ isub() [1/2]

◆ isub() [2/2]

◆ imul()

◆ idiv()

◆ itruediv()