eVision.EBW8Vector Class Reference

Vector objects are used to store 1-dimensional data. More...

Inheritance diagram for eVision.EBW8Vector:

Collaboration diagram for eVision.EBW8Vector:

Public Member Functions
None	__init__ (self)
	Constructs a vector.
None	__init__ (self, int maxNumberOfElements)
	Constructs a vector.
None	__init__ (self, eVision.EBW8Vector other)
	Constructs a vector.
None	AddElement (self, eVision.EBW8 element)
	Appends (adds at the tail) an element to the vector.
eVision.EBW8	GetElement (self, int index)
	Returns the vector element at the given index.
None	SetElement (self, int index, eVision.EBW8 value)
	Modifies the vector element at the given index by the given value.
None	SetYRange (self, int n32YMin, int un32YMax)
None	SetYRange (self, int n32YMin)
None	SetYRange (self)
None	Draw (self, eVision.EDrawAdapter|None graphicContext, float width, float height, float originX, float originY)
	Draws a plot of the vector element values.
None	Draw (self, eVision.EDrawAdapter|None graphicContext, float width, float height, float originX)
	Draws a plot of the vector element values.
None	Draw (self, eVision.EDrawAdapter|None graphicContext, float width, float height)
	Draws a plot of the vector element values.
float	WeightedMoment (self, int from_, int to)
	Returns the first order geometric moment (weighted gravity center).
float	WeightedMoment (self, int from_)
	Returns the first order geometric moment (weighted gravity center).
float	WeightedMoment (self)
	Returns the first order geometric moment (weighted gravity center).
eVision.EBW8	IndexOperator_Getter (self, int index)
None	IndexOperator_Setter (self, int index, eVision.EBW8 value)
ctypes.c_void_p	RawDataPtr (self)
	Pointer to the vector data.
Public Member Functions inherited from eVision.EVector
None	Empty (self)
	Resets the number of elements to 0.
None	RemoveElement (self, int index)
	Removes the element at the specified position.
None	Save (self, str path)
	Saves the eVision.EVector object with all its attributes.
None	Save (self, eVision.ESerializer|None serializer)
	Saves the eVision.EVector object with all its attributes.
None	Save (self, str path, int un32Version)
	Saves the eVision.EVector object with all its attributes.
None	Save (self, eVision.ESerializer|None serializer, int un32Version)
	Saves the eVision.EVector object with all its attributes.
None	Load (self, str path)
	Loads the eVision.EVector object with all its attributes.
None	Load (self, eVision.ESerializer|None serializer)
	Loads the eVision.EVector object with all its attributes.
None	Load (self, str path, int un32Version)
	Loads the eVision.EVector object with all its attributes.
None	Load (self, eVision.ESerializer|None serializer, int un32Version)
	Loads the eVision.EVector object with all its attributes.
int	NumElements (self)
	Number of elements in the vector.
	NumElements (self, int value)
	Number of elements in the vector.

Detailed Description

Vector objects are used to store 1-dimensional data.

Remarks:

Using vectors is very similar to using 1-dimensional arrays, except that the size can vary at runtime. Memory allocation is handled internally.

• To create a vector, use its constructor.
• To fill a vector with values, first empty it, using the eVision.EVector.Empty member, and then add elements one at time at the tail by calling the eVision.EBW8Vector.AddElement member.
• To access a vector element, either for reading or writing, use the [] operator.
• To inquire for the current number of elements, use member eVision.EVector.NumElements.

License(s): BasicTypes

Constructor & Destructor Documentation

__init__() [1/3]

None eVision.EBW8Vector.__init__

(

self

)

Constructs a vector.

__init__() [2/3]

None eVision.EBW8Vector.__init__	(		self,
		int	maxNumberOfElements )

Constructs a vector.

Parameters

maxNumberOfElements

Optionally, memory can be pre-allocated to accommodate a given number of elements.

__init__() [3/3]

None eVision.EBW8Vector.__init__	(		self,
		eVision.EBW8Vector	other )

Constructs a vector.

Parameters

other

eVision.EBW8Vector object to be copied

Member Function Documentation

AddElement()

None eVision.EBW8Vector.AddElement	(		self,
		eVision.EBW8	element )

Appends (adds at the tail) an element to the vector.

Parameters

element

The element to be added.

Draw() [1/3]

None eVision.EBW8Vector.Draw	(		self,
		eVision.EDrawAdapter | None	graphicContext,
		float	width,
		float	height )

Draws a plot of the vector element values.

Remarks:

A vector is able to draw itself in a window. The vector plots the element values as a function of the element indices. The drawing appears on a neutral background.

Parameters

graphicContext	Handle of the device context on which to draw.
width	Outermost horizontal size, in pixels.
height	Outermost vertical size, in pixels.

Draw() [2/3]

None eVision.EBW8Vector.Draw	(		self,
		eVision.EDrawAdapter | None	graphicContext,
		float	width,
		float	height,
		float	originX )

Draws a plot of the vector element values.

Remarks:

A vector is able to draw itself in a window. The vector plots the element values as a function of the element indices. The drawing appears on a neutral background.

Parameters

graphicContext	Handle of the device context on which to draw.
width	Outermost horizontal size, in pixels.
height	Outermost vertical size, in pixels.
originX	Abscissa of the upper left corner of the plot's bounding rectangle, in pixels. By default, the upper left corner of the window is used.

Draw() [3/3]

None eVision.EBW8Vector.Draw	(		self,
		eVision.EDrawAdapter | None	graphicContext,
		float	width,
		float	height,
		float	originX,
		float	originY )

Draws a plot of the vector element values.

Remarks:

A vector is able to draw itself in a window. The vector plots the element values as a function of the element indices. The drawing appears on a neutral background.

Parameters

graphicContext	Handle of the device context on which to draw.
width	Outermost horizontal size, in pixels.
height	Outermost vertical size, in pixels.
originX	Abscissa of the upper left corner of the plot's bounding rectangle, in pixels. By default, the upper left corner of the window is used.
originY	Ordinate of the upper left corner of the plot's bounding rectangle, in pixels. By default, the upper left corner of the window is used.

GetElement()

eVision.EBW8 eVision.EBW8Vector.GetElement	(		self,
		int	index )

Returns the vector element at the given index.

Remarks:

If the given index is outside the bounds of the vector, the error code eVision.EError.Parameter1OutOfRange is set.

Parameters

index

Index, between 0 and eVision.EVector.NumElements (excluded) of the element to be accessed.

IndexOperator_Getter()

eVision.EBW8 eVision.EBW8Vector.IndexOperator_Getter	(		self,
		int	index )

IndexOperator_Setter()

None eVision.EBW8Vector.IndexOperator_Setter	(		self,
		int	index,
		eVision.EBW8	value )

RawDataPtr()

ctypes.c_void_p eVision.EBW8Vector.RawDataPtr

(

self

)

Pointer to the vector data.

SetElement()

None eVision.EBW8Vector.SetElement	(		self,
		int	index,
		eVision.EBW8	value )

Modifies the vector element at the given index by the given value.

Remarks:

If the given index is outside the bounds of the vector, the error code eVision.EError.Parameter1OutOfRange is set.

Parameters

index	Index, between 0 and eVision.EVector.NumElements (excluded), of the element to be modified.
value	The new value for the element.

SetYRange() [1/3]

None eVision.EBW8Vector.SetYRange

(

self

)

SetYRange() [2/3]

None eVision.EBW8Vector.SetYRange	(		self,
		int	n32YMin )

SetYRange() [3/3]

None eVision.EBW8Vector.SetYRange	(		self,
		int	n32YMin,
		int	un32YMax )

WeightedMoment() [1/3]

float eVision.EBW8Vector.WeightedMoment

(

self

)

Returns the first order geometric moment (weighted gravity center).

WeightedMoment() [2/3]

float eVision.EBW8Vector.WeightedMoment	(		self,
		int	from_ )

Returns the first order geometric moment (weighted gravity center).

Parameters

from_

First element of the vector portion for which the weighted moment will be calculated. By default, this is the first element of the vector.

WeightedMoment() [3/3]

float eVision.EBW8Vector.WeightedMoment	(		self,
		int	from_,
		int	to )

Returns the first order geometric moment (weighted gravity center).

Parameters

from_	First element of the vector portion for which the weighted moment will be calculated. By default, this is the first element of the vector.
to	Last element of the vector portion for which the weighted moment will be calculated. By default, this is the last element of the vector.