#include <compute_intersection.hh>

Collaboration diagram for ComputeIntersection< 1, 3 >:

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Public Types
typedef IntersectionPointAux< 1, 3 >	IPAux

Public Member Functions
	ComputeIntersection ()
	Default constructor. Use when this is NOT final intersection object. More...

	ComputeIntersection (ElementAccessor< 3 > abscissa, ElementAccessor< 3 > tetrahedron, Mesh *mesh)
	Constructor, sets abscissa and tetrahedron object. Use when this is final intersection object. It allocates memory, computes plucker coordinates and products. More...

	~ComputeIntersection ()

void	init ()
	Initializes lower dimensional objects. Sets correctly the pointers to Plucker coordinates and products. More...

unsigned int	compute (std::vector< IPAux > &IP13s)
	Computes intersection points for 1D-3D intersection. Computes lower dimensional CIs abscissa vs tetrahedron face. During cycle determine topology information and set computed flags accordingly. We can have 2 IPs at maximum. If there are 2 IPs: More...

unsigned int	compute (IntersectionAux< 1, 3 > &intersection)
	Computes final 1D-3D intersection. Computes IPs and check if any of them are pathologic to set the resulting object also pathologic. Calls `compute` function inside. More...

Setters and Getters
Plucker *	plucker_coordinates_abscissa_
	Pointer to plucker coordinates of abscissa. More...

std::vector< Plucker * >	plucker_coordinates_tetrahedron
	Vector of pointers to plucker coordinates of tetrahedron edges. More...

std::vector< double * >	plucker_products_
	Pointers to Plucker products of abscissa and tetrahedron edges. More...

ComputeIntersection< 1, 2 >	CI12 [4]

void	set_pc_abscissa (Plucker *p)
	Sets the pointer to Plucker coordinates of the abscissa. More...

void	set_pc_tetrahedron (Plucker *p, unsigned int edge_idx)
	Sets the pointer to Plucker coordinates of the tetrahedron edge. More...

Plucker *	get_pc_abscissa ()
	Gets the pointer to Plucker coordinates of the abscissa. More...

Plucker *	get_pc_tetrahedron (unsigned int edge_idx)
	Gets the pointer to Plucker coordinates of the tetrahedron edge of given `edge_idx`. More...

void	set_plucker_product (double *number, unsigned edge_idx)
	Sets the pointer to Plucker product of abscissa and tetrahedron edge. More...

double *	get_plucker_product (unsigned edge_idx)
	Gets the pointer to Plucker product of abscissa and tetrahedron edge of given `edge_idx`. More...

void	print_plucker_coordinates (std::ostream &os)
	Prints out the Plucker coordinates of abscissa and tetrahedron edges. More...

void	print_plucker_coordinates_tree (std::ostream &os)
	Prints out the Plucker coordinates of tetrahedron edges in a tree of tetrahedron sides (triangles). More...

void	clear_all ()

void	correct_tetrahedron_ip_topology (double t, unsigned int i, std::vector< IPAux > &ip)
	After interpolation, the topology information in tetrahedron must be updated. More...

Detailed Description

Class for 1D-3D intersections.

Computes the intersection of an abscissa and a tetrahedron. Uses 4 ComputeIntersection<1,2> for abscissa and tetrahedron sides intersections.

Definition at line 345 of file compute_intersection.hh.

Member Typedef Documentation

◆ IPAux

typedef IntersectionPointAux<1,3> ComputeIntersection< 1, 3 >::IPAux

Definition at line 348 of file compute_intersection.hh.

Constructor & Destructor Documentation

◆ ComputeIntersection() [1/2]

ComputeIntersection< 1, 3 >::ComputeIntersection ( )

Default constructor. Use when this is NOT final intersection object.

Definition at line 756 of file compute_intersection.cc.

◆ ComputeIntersection() [2/2]

ComputeIntersection< 1, 3 >::ComputeIntersection	(	ElementAccessor< 3 >	abscissa,
		ElementAccessor< 3 >	tetrahedron,
		Mesh *	mesh
	)

Constructor, sets abscissa and tetrahedron object. Use when this is final intersection object. It allocates memory, computes plucker coordinates and products.

◆ ~ComputeIntersection()

ComputeIntersection< 1, 3 >::~ComputeIntersection ( )

Definition at line 785 of file compute_intersection.cc.

Member Function Documentation

◆ clear_all()

void ComputeIntersection< 1, 3 >::clear_all ( )

Resets Plucker products to 'nullptr'. Use this CAREFULLY as it does not destroy the objects. It is intended to be used only from higher dimensions when before destroying.

Definition at line 803 of file compute_intersection.cc.

◆ compute() [1/2]

unsigned int ComputeIntersection< 1, 3 >::compute ( IntersectionAux< 1, 3 > & intersection )

Computes final 1D-3D intersection. Computes IPs and check if any of them are pathologic to set the resulting object also pathologic. Calls compute function inside.

Parameters

intersection final 1D-3D intersection object (output)

Returns: number of intersection points found

Definition at line 831 of file compute_intersection.cc.

◆ compute() [2/2]

unsigned int ComputeIntersection< 1, 3 >::compute ( std::vector< IPAux > & IP13s )

Computes intersection points for 1D-3D intersection. Computes lower dimensional CIs abscissa vs tetrahedron face. During cycle determine topology information and set computed flags accordingly. We can have 2 IPs at maximum. If there are 2 IPs:

sort them in direction of abscissa
possibly cut (move IPs so they are inside abscissa)
after cutting interpolate 3D coordinates
check that IPs are not the same, if true, throw one away
Parameters

IP13d vector of intersection points (output)

Returns
number of intersection points found

Definition at line 836 of file compute_intersection.cc.

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◆ correct_tetrahedron_ip_topology()

void ComputeIntersection< 1, 3 >::correct_tetrahedron_ip_topology	(	double	t,
		unsigned int	i,
		std::vector< IPAux > &	ip
	)

private

After interpolation, the topology information in tetrahedron must be updated.

Parameters

ip	intersection point to be corrected

TODO:

Try to avoid setting topology from coords. Try to use just topology information.
If can not be done. Use interact method to setup a map mapping 16 possible zeros positions to appropriate topology, remove topology_idx from RefElement.

Definition at line 916 of file compute_intersection.cc.

◆ get_pc_abscissa()

Plucker* ComputeIntersection< 1, 3 >::get_pc_abscissa ( )

inline

Gets the pointer to Plucker coordinates of the abscissa.

Definition at line 403 of file compute_intersection.hh.

◆ get_pc_tetrahedron()

Plucker* ComputeIntersection< 1, 3 >::get_pc_tetrahedron ( unsigned int edge_idx )

inline

Gets the pointer to Plucker coordinates of the tetrahedron edge of given edge_idx.

Definition at line 408 of file compute_intersection.hh.

◆ get_plucker_product()

double* ComputeIntersection< 1, 3 >::get_plucker_product ( unsigned edge_idx )

inline

Gets the pointer to Plucker product of abscissa and tetrahedron edge of given edge_idx.

Definition at line 420 of file compute_intersection.hh.

◆ init()

void ComputeIntersection< 1, 3 >::init ( )

Initializes lower dimensional objects. Sets correctly the pointers to Plucker coordinates and products.

Definition at line 814 of file compute_intersection.cc.

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◆ print_plucker_coordinates()

void ComputeIntersection< 1, 3 >::print_plucker_coordinates ( std::ostream & os )

Prints out the Plucker coordinates of abscissa and tetrahedron edges.

Definition at line 959 of file compute_intersection.cc.

◆ print_plucker_coordinates_tree()

void ComputeIntersection< 1, 3 >::print_plucker_coordinates_tree ( std::ostream & os )

Prints out the Plucker coordinates of tetrahedron edges in a tree of tetrahedron sides (triangles).

Definition at line 977 of file compute_intersection.cc.

◆ set_pc_abscissa()

void ComputeIntersection< 1, 3 >::set_pc_abscissa ( Plucker * p )

inline

Sets the pointer to Plucker coordinates of the abscissa.

Definition at line 390 of file compute_intersection.hh.

◆ set_pc_tetrahedron()

void ComputeIntersection< 1, 3 >::set_pc_tetrahedron	(	Plucker *	p,
		unsigned int	edge_idx
	)

inline

Sets the pointer to Plucker coordinates of the tetrahedron edge.

Parameters

p	pointer to Plucker coordinates
edge_idx	local index of an edge of tetrahedron

Definition at line 398 of file compute_intersection.hh.

◆ set_plucker_product()

void ComputeIntersection< 1, 3 >::set_plucker_product	(	double *	number,
		unsigned	edge_idx
	)

inline

Sets the pointer to Plucker product of abscissa and tetrahedron edge.

Parameters

number	pointer to value of Plucker product
edge_idx	local index of an edge of tetrahedron

Definition at line 416 of file compute_intersection.hh.

Member Data Documentation

◆ CI12

ComputeIntersection<1,2> ComputeIntersection< 1, 3 >::CI12[4]

private

Intersection objects for the tetrahedron's faces. Faces follows element node ordering, element inversion not handled at this stage. Element inversin is taken into account in the compute method. TODO: reuse these calculactions for elements with common face.

Definition at line 453 of file compute_intersection.hh.

◆ plucker_coordinates_abscissa_

Plucker* ComputeIntersection< 1, 3 >::plucker_coordinates_abscissa_

private

Pointer to plucker coordinates of abscissa.

Definition at line 442 of file compute_intersection.hh.

◆ plucker_coordinates_tetrahedron

std::vector<Plucker *> ComputeIntersection< 1, 3 >::plucker_coordinates_tetrahedron

private

Vector of pointers to plucker coordinates of tetrahedron edges.

Definition at line 444 of file compute_intersection.hh.

◆ plucker_products_

std::vector<double *> ComputeIntersection< 1, 3 >::plucker_products_

private

Pointers to Plucker products of abscissa and tetrahedron edges.

Definition at line 446 of file compute_intersection.hh.

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

/opt/flow123d/flow123d/src/intersection/compute_intersection.hh
/opt/flow123d/flow123d/src/intersection/compute_intersection.cc

Public Types

Public Member Functions

Setters and Getters

Detailed Description

Member Typedef Documentation

◆ IPAux

Constructor & Destructor Documentation

◆ ComputeIntersection() [1/2]

◆ ComputeIntersection() [2/2]

◆ ~ComputeIntersection()

Member Function Documentation

◆ clear_all()

◆ compute() [1/2]

◆ compute() [2/2]

◆ correct_tetrahedron_ip_topology()

◆ get_pc_abscissa()

◆ get_pc_tetrahedron()

◆ get_plucker_product()

◆ init()

◆ print_plucker_coordinates()

◆ print_plucker_coordinates_tree()

◆ set_pc_abscissa()

◆ set_pc_tetrahedron()

◆ set_plucker_product()

Member Data Documentation

◆ CI12

◆ plucker_coordinates_abscissa_

◆ plucker_coordinates_tetrahedron

◆ plucker_products_