boxComponent Struct Reference

Detailed Description

Struct which represents a certain component (interior, face, egde, corner).

This struct is a generalization of boxSide and of boxCorner.

Inheritance diagram for boxComponent:

Public Types
enum	location {   interior,   begin,   end }
	Represents a location. More...

Public Member Functions
boxCorner	asCorner () const
	Converts to boxCorner and fails if the component is not a corner.
boxSide	asSide () const
	Converts to boxSide and fails if the component is not a side.
	boxComponent (index_t b, short_t total_dim)
	Constructor. More...
	boxComponent (short_t total_dim)
	Constructor creating boxComponent representing the interior. More...
	boxComponent (boxSide b, short_t total_dim)
	Constructor converting boxSide to a boxComponent. More...
	boxComponent (boxCorner b, short_t total_dim)
	Constructor converting boxCorner to a boxComponent. More...
std::vector< boxCorner >	containedCorners () const
	Returns a vector of all boxCorner s that are contained in the component.
std::vector< boxSide >	containingSides () const
	Returns a vector of all boxSide s that contain the component.
short_t	dim () const
	Dimension of the component.
index_t	index () const
	Returns the index.
location	locationForDirection (index_t direction) const
boxComponent	opposite () const
	Returns the opposite boxCorner.
void	setLocationForDirection (index_t direction, location par)
short_t	totalDim () const
	Dimension of the computational domain (the box itself)

Private Attributes
index_t	m_index
	The index defines the component. More...
short_t	m_total_dim
	The dimension of the box itself.

Member Enumeration Documentation

enum location

Represents a location.

Enumerator
interior	Represents the interior.
begin	Represents the beginning.
end	Represents the end.

Constructor & Destructor Documentation

boxComponent ( index_t  b, short_t  total_dim  )

inline

Constructor.

Parameters

b	The index that defines the component
total_dim	The dimension of the box itself

boxComponent ( short_t  total_dim )

inline

Constructor creating boxComponent representing the interior.

Parameters

total_dim

The dimension of the box itself

boxComponent	(	boxSide	b,
		short_t	total_dim
	)

Constructor converting boxSide to a boxComponent.

Parameters

b	The box side
total_dim	The dimension of the box itself

boxComponent	(	boxCorner	b,
		short_t	total_dim
	)

Constructor converting boxCorner to a boxComponent.

Parameters

b	The box corner
total_dim	The dimension of the box itself

Member Function Documentation

boxComponent::location locationForDirection

(

index_t

direction

)

const

Gets the location for the direction

If the result value is begin, then the component is characterized by \( x_i = 0 \) If the result value is end, then the component is characterized by \( x_i = 1 \) If the result value is begin, then the component is characterized by \( x_i \in (0,1) \)

Parameters

direction

The index \( i \) from above

void setLocationForDirection	(	index_t	direction,
		boxComponent::location	par
	)

Sets the location for the direction

See locationForDirection

Parameters

direction	The index \( i \) from above
par	See locationForDirection

Member Data Documentation

index_t m_index

private

The index defines the component.

If the index is written as trinary number with digits 0, 1, 2 each position names one of the spatial dimensions and values are: 0=interior, 1=begin, 2=end (cf location)

So, in 2D (m_total_dim=2), we have indeces [00]=0 to [22]=8

[00] = 0 ... interior
[01] = 1 ... left edge
[02] = 2 ... right edge
[10] = 3 ... lower edge
[20] = 6 ... upper edge
[11] = 4 ... lower-left corner
etc., where [ab]=3*a+b

In 3D (m_total_dim=3), we have indeces [000]=0 to [222]=26

[000] =  0 ... interior
[001] =  1 ... west face
[002] =  2 ... east face
[010] =  3 ... south face
[020] =  6 ... north face
[100] =  9 ... front face
[200] = 18 ... back face
[011] =  4 ... south-west edge
[222] = 26 ... back-north-east corner
etc., where [abc]=9*a+3*b+c