Class for 2D-2D intersections. More...

#include <compute_intersection.hh>

Collaboration diagram for ComputeIntersection< 2, 3 >:

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Public Types
typedef IntersectionPointAux< 1, 2 >	IPAux12

typedef IntersectionPointAux< 1, 3 >	IPAux13

typedef IntersectionPointAux< 2, 3 >	IPAux23

Public Member Functions
	ComputeIntersection ()
	Default constructor, creates empty object. Resizes vectors for Plucker coordinates and products. More...

	ComputeIntersection (ElementAccessor< 3 > triangle, ElementAccessor< 3 > tetrahedron)
	Constructor, sets both triangle objects. 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...

void	compute (IntersectionAux< 2, 3 > &intersection)
	Computes intersection points for 2D-3D intersection. Computes lower dimensional CIs: 1) 3x triangle side vs tetrahedron 2) 6x tetrahedron edge vs triangle During cycle determine topology information and set computed flags accordingly. Finally, tracing algorithm is called to sort the intersection points to create convex polygon. More...

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

void	print_plucker_coordinates_tree (std::ostream &os)
	Prints out the Plucker coordinates in a tree simplices. More...

Private Types
typedef std::array< uint, 2 >	FacePair

Private Member Functions
auto	edge_faces (uint i_edge) -> FacePair

auto	vertex_faces (uint i_vtx) -> FacePair

bool	have_backlink (uint i_obj)

unsigned int	add_ip (const IPAux23 &ip)

void	set_links (uint obj_before_ip, uint ip_idx, uint obj_after_ip)

std::vector< std::vector< arma::uvec > >	_on_faces ()

Private Attributes
const unsigned int	no_idx

std::vector< unsigned int >	s3_dim_starts

std::vector< unsigned int >	s2_dim_starts

std::vector< IPAux12 >	IP12s_

std::vector< IPAux23 >	IP23_list

std::vector< Plucker * >	plucker_coordinates_triangle_
	Vector of Plucker coordinates for triangle side. More...

std::vector< Plucker * >	plucker_coordinates_tetrahedron
	Vector of Plucker coordinates for tetrahedron edges. More...

std::vector< double * >	plucker_products_
	Vector of pointers to Plucker products of triangle sides and tetrahedron edges. More...

ComputeIntersection< 1, 3 >	CI13 [3]
	Compute 1D-3D intersection objects [3]. More...

ComputeIntersection< 1, 2 >	CI12 [6]
	Compute 1D-2D intersection objects [6]. More...

std::vector< unsigned int >	IP_next

std::vector< unsigned int >	object_next

const std::vector< std::vector< arma::uvec > >	on_faces

bool	S3_inverted

IntersectionAux< 2, 3 > *	intersection_

Detailed Description

Class for 2D-2D intersections.

Computes the intersection of a triangle and a tetrahedron. Uses 3 ComputeIntersection<1,3> for triangle sides vs tetrahedron intersections. Uses 6 ComputeIntersection<1,2> for tetrahedron sides vs triangle intersections.

Definition at line 465 of file compute_intersection.hh.

Member Typedef Documentation

◆ FacePair

typedef std::array<uint, 2> ComputeIntersection< 2, 3 >::FacePair

private

Definition at line 512 of file compute_intersection.hh.

◆ IPAux12

typedef IntersectionPointAux<1,2> ComputeIntersection< 2, 3 >::IPAux12

Definition at line 467 of file compute_intersection.hh.

◆ IPAux13

typedef IntersectionPointAux<1,3> ComputeIntersection< 2, 3 >::IPAux13

Definition at line 468 of file compute_intersection.hh.

◆ IPAux23

typedef IntersectionPointAux<2,3> ComputeIntersection< 2, 3 >::IPAux23

Definition at line 469 of file compute_intersection.hh.

Constructor & Destructor Documentation

◆ ComputeIntersection() [1/2]

ComputeIntersection< 2, 3 >::ComputeIntersection ( )

Default constructor, creates empty object. Resizes vectors for Plucker coordinates and products.

Definition at line 988 of file compute_intersection.cc.

◆ ComputeIntersection() [2/2]

ComputeIntersection< 2, 3 >::ComputeIntersection	(	ElementAccessor< 3 >	triangle,
		ElementAccessor< 3 >	tetrahedron
	)

Constructor, sets both triangle objects. It allocates memory, computes plucker coordinates and products.

Parameters

triangle	intersecting triangle object
tetrahedron	intersecting tetrahedron object

Definition at line 1002 of file compute_intersection.cc.

◆ ~ComputeIntersection()

ComputeIntersection< 2, 3 >::~ComputeIntersection ( )

Definition at line 1037 of file compute_intersection.cc.

Member Function Documentation

◆ _on_faces()

std::vector< std::vector< arma::uvec > > ComputeIntersection< 2, 3 >::_on_faces ( )

private

Definition at line 1465 of file compute_intersection.cc.

◆ add_ip()

unsigned int ComputeIntersection< 2, 3 >::add_ip ( const IPAux23 & ip )

inlineprivate

Add raw intersection point.

Definition at line 559 of file compute_intersection.hh.

◆ compute()

void ComputeIntersection< 2, 3 >::compute ( IntersectionAux< 2, 3 > & intersection )

Computes intersection points for 2D-3D intersection. Computes lower dimensional CIs: 1) 3x triangle side vs tetrahedron 2) 6x tetrahedron edge vs triangle During cycle determine topology information and set computed flags accordingly. Finally, tracing algorithm is called to sort the intersection points to create convex polygon.

Parameters

intersection final 2D-3D intersection object (output) It is then used further in prolongation decision routines.

Returns: number of intersection points found

Compute triangle side - tetrahedron intersections IPs order is given by orientation of triangle sides, sign of IP results influenced by S3 inversion is irrelevant.

Definition at line 1130 of file compute_intersection.cc.

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◆ edge_faces()

auto ComputeIntersection< 2, 3 >::edge_faces ( uint i_edge ) -> FacePair

private

Definition at line 1373 of file compute_intersection.cc.

◆ have_backlink()

bool ComputeIntersection< 2, 3 >::have_backlink ( uint i_obj )

inlineprivate

Returns true if: i_obj -> IP -> i_obj Returns false if i_obj -> no_idx OR i_obj -> IP -> j_obj != i_obj

Backlink marks: end of the created chain

Definition at line 1092 of file compute_intersection.cc.

◆ init()

void ComputeIntersection< 2, 3 >::init ( )

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

Definition at line 1063 of file compute_intersection.cc.

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◆ print_plucker_coordinates()

void ComputeIntersection< 2, 3 >::print_plucker_coordinates ( std::ostream & os )

Prints out the Plucker coordinates of triangle sides and tetrahedron edges.

Definition at line 1502 of file compute_intersection.cc.

◆ print_plucker_coordinates_tree()

void ComputeIntersection< 2, 3 >::print_plucker_coordinates_tree ( std::ostream & os )

Prints out the Plucker coordinates in a tree simplices.

Definition at line 1521 of file compute_intersection.cc.

◆ set_links()

void ComputeIntersection< 2, 3 >::set_links	(	uint	obj_before_ip,
		uint	ip_idx,
		uint	obj_after_ip
	)

inlineprivate

Set links: obj_before -> IP -> obj_after if obj_after have null successor, set obj_after -> IP (backlink)

Definition at line 1104 of file compute_intersection.cc.

◆ vertex_faces()

auto ComputeIntersection< 2, 3 >::vertex_faces ( uint i_vtx ) -> FacePair

private

Definition at line 1386 of file compute_intersection.cc.

Member Data Documentation

◆ CI12

ComputeIntersection<1,2> ComputeIntersection< 2, 3 >::CI12[6]

private

Compute 1D-2D intersection objects [6].

Definition at line 534 of file compute_intersection.hh.

◆ CI13

ComputeIntersection<1,3> ComputeIntersection< 2, 3 >::CI13[3]

private

Compute 1D-3D intersection objects [3].

Definition at line 532 of file compute_intersection.hh.

◆ intersection_

IntersectionAux<2,3>* ComputeIntersection< 2, 3 >::intersection_

private

Definition at line 575 of file compute_intersection.hh.

◆ IP12s_

std::vector<IPAux12> ComputeIntersection< 2, 3 >::IP12s_

private

Definition at line 520 of file compute_intersection.hh.

◆ IP23_list

std::vector<IPAux23> ComputeIntersection< 2, 3 >::IP23_list

private

Definition at line 521 of file compute_intersection.hh.

◆ IP_next

std::vector<unsigned int> ComputeIntersection< 2, 3 >::IP_next

private

Definition at line 538 of file compute_intersection.hh.

◆ no_idx

const unsigned int ComputeIntersection< 2, 3 >::no_idx

private

Definition at line 515 of file compute_intersection.hh.

◆ object_next

std::vector<unsigned int> ComputeIntersection< 2, 3 >::object_next

private

Definition at line 541 of file compute_intersection.hh.

◆ on_faces

const std::vector<std::vector<arma::uvec> > ComputeIntersection< 2, 3 >::on_faces

private

Definition at line 571 of file compute_intersection.hh.

◆ plucker_coordinates_tetrahedron

std::vector<Plucker *> ComputeIntersection< 2, 3 >::plucker_coordinates_tetrahedron

private

Vector of Plucker coordinates for tetrahedron edges.

Definition at line 526 of file compute_intersection.hh.

◆ plucker_coordinates_triangle_

std::vector<Plucker *> ComputeIntersection< 2, 3 >::plucker_coordinates_triangle_

private

Vector of Plucker coordinates for triangle side.

Definition at line 524 of file compute_intersection.hh.

◆ plucker_products_

std::vector<double *> ComputeIntersection< 2, 3 >::plucker_products_

private

Vector of pointers to Plucker products of triangle sides and tetrahedron edges.

Definition at line 529 of file compute_intersection.hh.

◆ s2_dim_starts

std::vector<unsigned int> ComputeIntersection< 2, 3 >::s2_dim_starts

private

Definition at line 518 of file compute_intersection.hh.

◆ s3_dim_starts

std::vector<unsigned int> ComputeIntersection< 2, 3 >::s3_dim_starts

private

Definition at line 517 of file compute_intersection.hh.

◆ S3_inverted

bool ComputeIntersection< 2, 3 >::S3_inverted

private

Definition at line 574 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

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ FacePair

◆ IPAux12

◆ IPAux13

◆ IPAux23

Constructor & Destructor Documentation

◆ ComputeIntersection() [1/2]

◆ ComputeIntersection() [2/2]

◆ ~ComputeIntersection()

Member Function Documentation

◆ _on_faces()

◆ add_ip()

◆ compute()

◆ edge_faces()

◆ have_backlink()

◆ init()

◆ print_plucker_coordinates()

◆ print_plucker_coordinates_tree()

◆ set_links()

◆ vertex_faces()

Member Data Documentation

◆ CI12

◆ CI13

◆ intersection_

◆ IP12s_

◆ IP23_list

◆ IP_next

◆ no_idx

◆ object_next

◆ on_faces

◆ plucker_coordinates_tetrahedron

◆ plucker_coordinates_triangle_

◆ plucker_products_

◆ s2_dim_starts

◆ s3_dim_starts

◆ S3_inverted