t8_geometry_linear Struct Reference

Inheritance diagram for t8_geometry_linear:

Public Member Functions
	t8_geometry_linear (int dim)
	Constructor of the linear geometry with a given dimension. More...
virtual	~t8_geometry_linear ()
	The destructor. More...
t8_geometry_type_t	t8_geom_get_type () const
	Get the type of this geometry. More...
virtual void	t8_geom_evaluate (t8_cmesh_t cmesh, t8_gloidx_t gtreeid, const double *ref_coords, const size_t num_coords, double *out_coords) const
	Maps points in the reference space \( [0,1]^\mathrm{dim} \to \mathbb{R}^3 \). More...
virtual void	t8_geom_evaluate_jacobian (t8_cmesh_t cmesh, t8_gloidx_t gtreeid, const double *ref_coords, const size_t num_coords, double *jacobian) const
	Compute the jacobian of the t8_geom_evaluate map at a point in the reference space \( [0,1]^\mathrm{dim} \). More...
virtual void	t8_geom_point_batch_inside_element (t8_forest_t forest, t8_locidx_t ltreeid, const t8_element_t *element, const double *points, const int num_points, int *is_inside, const double tolerance) const
Public Member Functions inherited from t8_geometry_with_vertices
	t8_geometry_with_vertices (int dimension, std::string name)
virtual	~t8_geometry_with_vertices ()
	The destructor. More...
virtual void	t8_geom_load_tree_data (t8_cmesh_t cmesh, t8_gloidx_t gtreeid)
	Update a possible internal data buffer for per tree data. More...
virtual bool	t8_geom_tree_negative_volume () const
	Check if the currently active tree has a negative volume. More...
t8_geometry_type_t	t8_geom_get_type () const
	Get the type of this geometry. More...
Public Member Functions inherited from t8_geometry
	t8_geometry (int dim, std::string name)
virtual	~t8_geometry ()
	The destructor. More...
int	t8_geom_get_dimension () const
	Get the dimension of this geometry. More...
const std::string	t8_geom_get_name () const
	Get the name of this geometry. More...
const size_t	t8_geom_get_hash () const

Additional Inherited Members
Protected Attributes inherited from t8_geometry_with_vertices
t8_gloidx_t	active_tree
t8_eclass_t	active_tree_class
const double *	active_tree_vertices
Protected Attributes inherited from t8_geometry
int	dimension
	The dimension of reference space for which this is a geometry.
std::string	name
	The name of this geometry.
size_t	hash
	The hash of the name of this geometry.

Constructor & Destructor Documentation

t8_geometry_linear()

t8_geometry_linear::t8_geometry_linear

(

int

dim

)

Constructor of the linear geometry with a given dimension.

The geometry is viable with all tree types and uses as many vertices as the tree type has. The vertices are saved via the t8_cmesh_set_tree_vertices function. Sets the dimension and the name to "t8_geom_linear_{dim}"

Parameters

[in]

dim

0 <= dimension <= 3. The dimension.

~t8_geometry_linear()

t8_geometry_linear::~t8_geometry_linear ( )

virtual

The destructor.

Clears the allocated memory.

Member Function Documentation

t8_geom_evaluate()

void t8_geometry_linear::t8_geom_evaluate ( t8_cmesh_t  cmesh, t8_gloidx_t  gtreeid, const double *  ref_coords, const size_t  num_coords, double *  out_coords  ) const

virtual

Maps points in the reference space \( [0,1]^\mathrm{dim} \to \mathbb{R}^3 \).

Parameters

[in]	cmesh	The cmesh in which the point lies.
[in]	gtreeid	The global tree (of the cmesh) in which the reference point is.
[in]	ref_coords	Array of dimension x num_coords many entries, specifying points in \( [0,1]^\mathrm{dim} \).
[in]	num_coords	Amount of points of /f$ \mathrm{dim} /f$ to map.
[out]	out_coords	The mapped coordinates in physical space of ref_coords. The length is num_coords * 3.

Implements t8_geometry.

t8_geom_evaluate_jacobian()

void t8_geometry_linear::t8_geom_evaluate_jacobian ( t8_cmesh_t  cmesh, t8_gloidx_t  gtreeid, const double *  ref_coords, const size_t  num_coords, double *  jacobian  ) const

virtual

Compute the jacobian of the t8_geom_evaluate map at a point in the reference space \( [0,1]^\mathrm{dim} \).

Parameters

[in]	cmesh	The cmesh in which the point lies.
[in]	gtreeid	The global tree (of the cmesh) in which the reference point is.
[in]	ref_coords	Array of dimension x num_coords many entries, specifying points in \( [0,1]^\mathrm{dim} \).
[in]	num_coords	Amount of points of /f$ \mathrm{dim} /f$ to map.
[out]	jacobian	The jacobian at ref_coords. Array of size num_coords x dimension x 3. Indices \( 3 \cdot i\) , \( 3 \cdot i+1 \) , \( 3 \cdot i+2 \) correspond to the \( i \)-th column of the jacobian (Entry \( 3 \cdot i + j \) is \( \frac{\partial f_j}{\partial x_i} \)).

Implements t8_geometry.

t8_geom_get_type()

t8_geometry_type_t t8_geometry_linear::t8_geom_get_type ( ) const

inlinevirtual

Get the type of this geometry.

Returns

The type.

Implements t8_geometry.

t8_geom_point_batch_inside_element()

void t8_geometry_linear::t8_geom_point_batch_inside_element ( t8_forest_t  forest, t8_locidx_t  ltreeid, const t8_element_t *  element, const double *  points, const int  num_points, int *  is_inside, const double  tolerance  ) const

virtual

Parameters

[in]	forest	The forest of the element.
[in]	ltreeid	The local tree id of the element's tree
[in]	element	The element
[in]	points	points to check
[in]	num_points	Number of points to check
[in,out]	is_inside	Array to fill with flags whether the point is inside or not
[in]	tolerance	Tolerance of the inside-check

Reimplemented from t8_geometry.

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

• src/t8_geometry/t8_geometry_implementations/t8_geometry_linear.hxx
• src/t8_geometry/t8_geometry_implementations/t8_geometry_linear.cxx