wmtk::TetMesh::TetrahedronConnectivity Class Reference

#include <TetMesh.h>

Public Member Functions
size_t &	operator[] (size_t index)
size_t	operator[] (size_t index) const
int	find (size_t v_id) const
int	find_local_edge (size_t v1_id, size_t v2_id) const
int	find_local_face (size_t v1_id, size_t v2_id, size_t v3_id) const
void	print_info ()

Public Attributes
std::array< size_t, 4 >	m_indices
bool	m_is_removed = false
uint32_t	hash = 0

Friends
bool	operator== (const TetrahedronConnectivity &l, const TetrahedronConnectivity &r)

Detailed Description

(internal use) Maintains the vertices of a given tetra.

Member Data Documentation

hash

uint32_t wmtk::TetMesh::TetrahedronConnectivity::hash = 0

Bumped whenever an operation changes this tet, so a Tuple minted earlier can detect that it is stale. Only ever compared for equality against a Tuple's cached copy – no code reads the value itself, and the rollback path decrements it, which is why it is unsigned: the wrap at 0 is defined, where signed underflow would not be.

32 bits, packed next to m_is_removed: the struct is 40 bytes instead of 48, and there are six of them per live tet in the preallocated storage. A slot would have to be modified 2^32 times between a Tuple being minted and checked for that to alias.

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

• src/wmtk/TetMesh.h