wmtk::history::VolumeRecorder Class Reference

Records a VolumeHistory alongside a TrackedSurfaceRecorder. An operation captures the tets around it before it changes the mesh and at its commit point (TetMesh does both), and commits them here with the range of surface edits its surface commit made; one that made none is not recorded. Commits may come concurrently: they are kept, encoded, in the order they come, and ordered by surface edit when read. The mesh's vertices get ids of their own here, which a consolidation (renumber) does not change, so a vertex's position is written again only when it moved. More...

#include <VolumeHistory.hpp>

Classes
struct	Encoder

Public Types
using	Capture = VolumeCapture

Public Member Functions
void	commit (VolumeOp op, std::array< size_t, 2 > surface_edits, const std::vector< size_t > &op_vertices, const Capture &before, const Capture &after)
void	renumber (const std::vector< size_t > &old_to_new)
	The mesh renumbered its vertices: old_to_new[v], size_t(-1) for a vertex gone.
VolumeHistory	history () const
	What was recorded, decoded, sorted by surface edit.
std::vector< uint8_t >	to_bytes (uint64_t surface_edit_offset, const SurfaceKey &surface, const std::map< int64_t, std::string > &tag_names) const
size_t	size () const
	The edits recorded, and the bytes they take.
size_t	bytes () const

Private Member Functions
uint32_t	region_of (const std::vector< int64_t > &tags)
	The region of a set of tags, sorted, each once; a new one if it is new. Under the lock.

Private Attributes
std::mutex	m_mutex
std::vector< std::vector< int64_t > >	m_regions
std::vector< uint64_t >	m_id_of
	Mesh vertex -> the recorder's id of it.
uint64_t	m_next_id = 0
std::vector< uint8_t >	m_bytes
	The edits, encoded in the order they came (see VolumeHistory.cpp).
size_t	m_count = 0
std::unique_ptr< Encoder >	m_encoder

Detailed Description

Records a VolumeHistory alongside a TrackedSurfaceRecorder. An operation captures the tets around it before it changes the mesh and at its commit point (TetMesh does both), and commits them here with the range of surface edits its surface commit made; one that made none is not recorded. Commits may come concurrently: they are kept, encoded, in the order they come, and ordered by surface edit when read. The mesh's vertices get ids of their own here, which a consolidation (renumber) does not change, so a vertex's position is written again only when it moved.

Member Function Documentation

to_bytes()

std::vector< uint8_t > wmtk::history::VolumeRecorder::to_bytes	(	uint64_t	surface_edit_offset,
		const SurfaceKey &	surface,
		const std::map< int64_t, std::string > &	tag_names
	)		const

The bytes of what was recorded, as VolumeHistory::to_bytes gives them, with the offset of its surface edits in the surface history recorded alongside, that history's key, and the tag names.

---

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

• src/wmtk/history/VolumeHistory.hpp
• src/wmtk/history/VolumeHistory.cpp