Describes the direction in which to faces are connected. More...

#include <Kernel_connection.hpp>

Public Member Functions
int	i_face (int i_side) const

bool	flip_normal (int i_side) const
	Returns `true` if the normal of face `i_side` must be inverted to obey the sign convention.

bool	flip_tangential () const
	Returns `true` if the indices of axis 0 of face 1 must be reversed to match the indexing of face 0.

bool	transpose () const
	Returns `true` if the rows and columns of face 1 must be transposed to match the indexing of face 0.

Public Attributes
std::array< int, 2 >	i_dim
	The normal axis of each face in reference coordinates.

std::array< bool, 2 >	face_sign
	The sign of the nonzero component of the normal vector of each face in reference coordinates.

int	rotate = 0
	Indicates whether the coordinates need to be rotated to make the quadrature points match.

Related Symbols
(Note that these are not member symbols.)
bool	operator== (Connection_direction dir0, Connection_direction dir1)

std::string	to_string (Connection_direction)

std::ostream &	operator<< (std::ostream &, Connection_direction)

Detailed Description

Describes the direction in which to faces are connected.

In other words, it describes the relative orientation of the connected faces in reference coordinates so that a consistent mapping between their quadrature points and normals can be established.

Member Function Documentation

◆ flip_normal()

bool hexed::Connection_direction::flip_normal ( int i_side ) const

inline

Returns true if the normal of face i_side must be inverted to obey the sign convention.

The sign convention is for the normal to point from the element on side 0 into that on side 1.

◆ transpose()

bool hexed::Connection_direction::transpose ( ) const

inline

Returns true if the rows and columns of face 1 must be transposed to match the indexing of face 0.

In 2D, this is always false.

Member Data Documentation

◆ rotate

int hexed::Connection_direction::rotate = 0

Indicates whether the coordinates need to be rotated to make the quadrature points match.

Specifically, int indicates that face 1 is rotated by rotate 90 \(\degree\) increments about the shared normal relative to face 0. So, when permuting quadrature points or vertices, after all other transformations have been performed, rotate 90 \(\degree\) rotations will be performed on face 1 in a negative sense (i.e. clockwise) to undo the specified rotation.

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

/home/micaiah/Desktop/hexed/include/Kernel_connection.hpp

Public Member Functions