wmtk::io::TriVTUWriter Class Reference

Public Member Functions
	TriVTUWriter (const TriMesh &mesh)
	Construct a VTU writer for the given mesh.
void	add_vertex_positions (const std::function< VectorXd(const size_t)> &f)
	Add vertex positions.
void	add_vertex_attribute (const std::string &name, const std::function< VectorXd(const size_t)> &f)
	Add vertex attribute.
void	add_vertex_attribute (const std::string &name, const std::function< double(const size_t)> &f)
void	add_edge_attribute (const std::string &name, const std::function< VectorXd(const size_t)> &f)
	Add edge attribute.
void	add_edge_attribute (const std::string &name, const std::function< double(const size_t)> &f)
void	add_triangle_attribute (const std::string &name, const std::function< VectorXd(const size_t)> &f)
	Add triangle attribute.
void	add_triangle_attribute (const std::string &name, const std::function< double(const size_t)> &f)
bool	write_triangles (const std::filesystem::path &filename)
	Write the triangle mesh with triangle and vertex attributes.
bool	write_edges (const std::filesystem::path &filename)
	Write the edge mesh with edge and vertex attributes.

Private Types
using	Tuple = typename TriMesh::Tuple

Private Attributes
const TriMesh &	m_mesh
MatrixXd	m_V
MatrixXi	m_E
MatrixXi	m_F
std::map< std::string, MatrixXd >	m_V_attributes
std::map< std::string, MatrixXd >	m_E_attributes
std::map< std::string, MatrixXd >	m_F_attributes

Constructor & Destructor Documentation

TriVTUWriter()

wmtk::io::TriVTUWriter::TriVTUWriter

(

const TriMesh &

mesh

)

Construct a VTU writer for the given mesh.

The IDs in the written mesh might not be the same as in inside the code. If you want these two to match, you must consolidate before writing. Additionally, edge IDs will never match.

If you want to know the IDs in your code, you can add an attribute like:

TriMesh m;
writer.add_edge_attribute("eid", [&m](int i) { return VectorXd::Constant(1, i); });

Member Function Documentation

add_edge_attribute()

void wmtk::io::TriVTUWriter::add_edge_attribute	(	const std::string &	name,
		const std::function< VectorXd(const size_t)> &	f
	)

Add edge attribute.

See add_vertex_attribute for details.

add_triangle_attribute()

void wmtk::io::TriVTUWriter::add_triangle_attribute	(	const std::string &	name,
		const std::function< VectorXd(const size_t)> &	f
	)

Add triangle attribute.

See add_vertex_attribute for details.

add_vertex_attribute()

void wmtk::io::TriVTUWriter::add_vertex_attribute	(	const std::string &	name,
		const std::function< VectorXd(const size_t)> &	f
	)

Add vertex attribute.

Examples:

TriMesh m;
writer.add_vertex_attribute("abc", [&m](int i) { return m.vertex_attrs[i].pos; });
writer.add_vertex_attribute("vid", [&m](int i) { return VectorXd::Constant(1, i); });

Parameters

f	A function that takes the vertex ID as input and returns the attribute value for that vertex.

add_vertex_positions()

void wmtk::io::TriVTUWriter::add_vertex_positions

(

const std::function< VectorXd(const size_t)> &

f

)

Add vertex positions.

If no positions are provided, all vertices will be placed at (0,0,0).

Parameters

f	A function that takes the vertex ID as input and returns the position.

write_edges()

bool wmtk::io::TriVTUWriter::write_edges

(

const std::filesystem::path &

filename

)

Write the edge mesh with edge and vertex attributes.

Parameters

filename

The file the mesh is written to. Should have the extension .VTU.

write_triangles()

bool wmtk::io::TriVTUWriter::write_triangles

(

const std::filesystem::path &

filename

)

Write the triangle mesh with triangle and vertex attributes.

Parameters

filename

The file the mesh is written to. Should have the extension .VTU.

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

• /home/runner/work/wildmeshing-toolkit/wildmeshing-toolkit/src/wmtk/io/TriVTUWriter.hpp
• /home/runner/work/wildmeshing-toolkit/wildmeshing-toolkit/src/wmtk/io/TriVTUWriter.cpp