A line-surface intersection query. More...

#include <line_surface_intersecter.h>

Inheritance diagram for geometry::line_surface_intersecter:

Classes
struct	really_less_than
	Compare functor makes sure surface values are really different. More...

Friends
SHEAF_DLL_SPEC std::ostream &	operator<< (std::ostream &os, const line_surface_intersecter &xp)
	Insert line_surface_intersecter xp in ostream xos. More...

LINE_SURFACE_INTERSECTER FACET
typedef std::map< sec_vd_value_type, pod_index_type, really_less_than >	intersection_set_type
	The type of intersetion set, a map from z coordinate to surface id; sorted by z coordinate. More...

typedef d_bounding_box< 3, 2 >	box_type
	The type of search structure box. More...

typedef d_array_point_locator< 3, 2 >	search_structure_type
	The type of collision search structure. More...

typedef search_structure_type::box_set_type	box_set_type
	The type of search structure box set. More...

sec_e3 *	_coords
	The coordinate section for lines. More...

base_space_poset *	_host
	The base space. More...

index_space_handle *	_surface_id_space
	The surface id space. More...

index_space_handle *	_eval_id_space
	The id space for surface evaluators. More...

linear_2d	_evaluator
	The evaluator for surface sections; temporarily assumes triangle. More...

search_structure_type *	_locator
	The intersection search structure. More...

	line_surface_intersecter (sec_e3 &xcoords, const block< size_type > &xbin_ubs)
	Creates an intersector with surfaces defined by coordinate section xcoords. Allocates a search structure with bin index upper bounds xbin_ubs. More...

	line_surface_intersecter (const line_surface_intersecter &xother)
	Copy constructor. More...

virtual	~line_surface_intersecter ()
	Destructor. More...

const sec_e3 &	coords () const
	The section space containing the surfaces. More...

void	intersect (const e3_lite &xp0, const e3_lite &xp1, intersection_set_type &xresult) const
	Computes the intersections of the line passing through points xp0 and xp1 with the surfaces defined by coords(). More...

	line_surface_intersecter ()
	Default constructor; disabled. More...

bool	intersect (const e3_lite &xp0, const e3_lite &xp1, const d_bounding_box< 3, 2 > &xbox, e3_lite &xr) const
	Computes the intersection xr of the line passing through points xp0 and xp1 with the surface evaluator contained in xbox. More...

ANY FACET
virtual bool	is_ancestor_of (const any *other) const
	Conformance test; true if other conforms to this. More...

virtual line_surface_intersecter *	clone () const
	Virtual constructor, makes a new instance of the same type as this. More...

line_surface_intersecter &	operator= (const line_surface_intersecter &xother)
	Assignment operator. More...

virtual bool	invariant () const
	Class invariant. More...

Additional Inherited Members
Public Member Functions inherited from sheaf::any
bool	is_same_type (const any *other) const
	True if other is the same type as this. More...

virtual	~any ()
	Destructor. More...

bool	invariant_check () const
	True if invariant checking is enabled. More...

void	enable_invariant_check () const
	Enable invariant checking. More...

void	disable_invariant_check () const
	Disable invariant check. Intended for preventing recursive calls to invariant and for suppressing invariant checking during multi-phase initialization. More...

int	disable_invariance_check_request_depth () const
	Number of times disable_invariant_check has been called without matching call to enable_invariant_check. More...

Protected Member Functions inherited from sheaf::any
	any ()
	default constructor More...

Detailed Description

A line-surface intersection query.

Hack:: Currently implemented only for lines aligned with the z axis and for triangle meshes.

Definition at line 79 of file line_surface_intersecter.h.

Member Typedef Documentation

◆ box_set_type

typedef search_structure_type::box_set_type geometry::line_surface_intersecter::box_set_type

protected

The type of search structure box set.

Definition at line 184 of file line_surface_intersecter.h.

◆ box_type

typedef d_bounding_box<3,2> geometry::line_surface_intersecter::box_type

The type of search structure box.

Definition at line 134 of file line_surface_intersecter.h.

◆ intersection_set_type

typedef std::map<sec_vd_value_type, pod_index_type, really_less_than> geometry::line_surface_intersecter::intersection_set_type

The type of intersetion set, a map from z coordinate to surface id; sorted by z coordinate.

Definition at line 129 of file line_surface_intersecter.h.

◆ search_structure_type

typedef d_array_point_locator<3, 2> geometry::line_surface_intersecter::search_structure_type

protected

The type of collision search structure.

Definition at line 179 of file line_surface_intersecter.h.

Constructor & Destructor Documentation

◆ line_surface_intersecter() [1/3]

geometry::line_surface_intersecter::line_surface_intersecter	(	sec_e3 &	xcoords,
		const block< size_type > &	xbin_ubs
	)

Creates an intersector with surfaces defined by coordinate section xcoords. Allocates a search structure with bin index upper bounds xbin_ubs.

Postcondition

invariant()

Definition at line 45 of file line_surface_intersecter.cc.

References sheaf::poset_component::get_read_access(), and line_surface_intersecter().

◆ line_surface_intersecter() [2/3]

geometry::line_surface_intersecter::line_surface_intersecter ( const line_surface_intersecter & xother )

Copy constructor.

Not Implemented.

Postcondition

invariant()

Definition at line 73 of file line_surface_intersecter.cc.

References ~line_surface_intersecter().

◆ ~line_surface_intersecter()

geometry::line_surface_intersecter::~line_surface_intersecter ( )

virtual

Destructor.

Definition at line 93 of file line_surface_intersecter.cc.

References coords().

Referenced by line_surface_intersecter().

◆ line_surface_intersecter() [3/3]

geometry::line_surface_intersecter::line_surface_intersecter ( )

protected

Default constructor; disabled.

Not Implemented.

Postcondition

invariant()

Definition at line 236 of file line_surface_intersecter.cc.

References intersect().

Referenced by intersect(), and line_surface_intersecter().

Member Function Documentation

◆ clone()

geometry::line_surface_intersecter * geometry::line_surface_intersecter::clone ( ) const

virtual

Virtual constructor, makes a new instance of the same type as this.

Postcondition

result != 0

is_same_type(result)

Reimplemented from sheaf::any.

Definition at line 394 of file line_surface_intersecter.cc.

References operator=().

Referenced by is_ancestor_of().

◆ coords()

const fiber_bundle::sec_e3 & geometry::line_surface_intersecter::coords ( ) const

The section space containing the surfaces.

Definition at line 111 of file line_surface_intersecter.cc.

References intersect().

Referenced by ~line_surface_intersecter().

◆ intersect() [1/2]

void geometry::line_surface_intersecter::intersect	(	const e3_lite &	xp0,
		const e3_lite &	xp1,
		intersection_set_type &	xresult
	)		const

Computes the intersections of the line passing through points xp0 and xp1 with the surfaces defined by coords().

Hack:: Only z-axis aligned lines.

Precondition

-unexecutable( "temporarily only implemented for lines parallel to z axis" )

xp0[0] == xp1[0]

xp0[1] == xp1[1]

xp0[0] <= _locator->ub()[0]

xp0[1] <= _locator->ub()[1]

xp0[0] >= _locator->lb()[0]

xp0[1] >= _locator->lb()[1]

Hack:: Only z-axis aligned lines.

Issue:: : Subsequent intersections at the same z will not be entered.

Definition at line 118 of file line_surface_intersecter.cc.

References line_surface_intersecter(), geometry::d_bounding_box< DC, DB >::put_lb(), and geometry::d_bounding_box< DC, DB >::put_ub().

Referenced by coords(), and line_surface_intersecter().

◆ intersect() [2/2]

bool geometry::line_surface_intersecter::intersect	(	const e3_lite &	xp0,
		const e3_lite &	xp1,
		const d_bounding_box< 3, 2 > &	xbox,
		e3_lite &	xr
	)		const

protected

Computes the intersection xr of the line passing through points xp0 and xp1 with the surface evaluator contained in xbox.

Definition at line 257 of file line_surface_intersecter.cc.

References fiber_bundle::e3_algebra::cross(), geometry::d_bounding_box< DC, DB >::dofs_index(), fiber_bundle::ed_algebra::dot(), is_ancestor_of(), and fiber_bundle::same_sign().

◆ invariant()

bool geometry::line_surface_intersecter::invariant ( ) const

virtual

Class invariant.

Invariant

any::invariant()

Reimplemented from sheaf::any.

Definition at line 437 of file line_surface_intersecter.cc.

References geometry::operator<<().

Referenced by operator=().

◆ is_ancestor_of()

bool geometry::line_surface_intersecter::is_ancestor_of ( const any * other ) const

virtual

Conformance test; true if other conforms to this.

Precondition

other != 0

Reimplemented from sheaf::any.

Definition at line 374 of file line_surface_intersecter.cc.

References clone().

Referenced by intersect().

◆ operator=()

geometry::line_surface_intersecter & geometry::line_surface_intersecter::operator= ( const line_surface_intersecter & xother )

Assignment operator.

Not Implemented.

Postcondition

invariant()

Definition at line 416 of file line_surface_intersecter.cc.

References invariant().

Referenced by clone().

Friends And Related Function Documentation

◆ operator<<

SHEAF_DLL_SPEC std::ostream& operator<<	(	std::ostream &	os,
		const line_surface_intersecter &	xp
	)

friend

Insert line_surface_intersecter xp in ostream xos.

Member Data Documentation

◆ _coords

sec_e3* geometry::line_surface_intersecter::_coords

protected

The coordinate section for lines.

Definition at line 152 of file line_surface_intersecter.h.

Referenced by geometry::operator<<().

◆ _eval_id_space

index_space_handle* geometry::line_surface_intersecter::_eval_id_space

protected

The id space for surface evaluators.

Definition at line 167 of file line_surface_intersecter.h.

◆ _evaluator

linear_2d geometry::line_surface_intersecter::_evaluator

protected

The evaluator for surface sections; temporarily assumes triangle.

Hack:: Only z-axis aligned lines and triangles

Definition at line 174 of file line_surface_intersecter.h.

◆ _host

base_space_poset* geometry::line_surface_intersecter::_host

protected

The base space.

Definition at line 157 of file line_surface_intersecter.h.

Referenced by geometry::operator<<().

◆ _locator

search_structure_type* geometry::line_surface_intersecter::_locator

protected

The intersection search structure.

Definition at line 189 of file line_surface_intersecter.h.

Referenced by geometry::operator<<().

◆ _surface_id_space

index_space_handle* geometry::line_surface_intersecter::_surface_id_space

protected

The surface id space.

Definition at line 162 of file line_surface_intersecter.h.

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

Classes

Friends

LINE_SURFACE_INTERSECTER FACET

ANY FACET

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ box_set_type

◆ box_type

◆ intersection_set_type

◆ search_structure_type

Constructor & Destructor Documentation

◆ line_surface_intersecter() [1/3]

◆ line_surface_intersecter() [2/3]

◆ ~line_surface_intersecter()

◆ line_surface_intersecter() [3/3]

Member Function Documentation

◆ clone()

◆ coords()

◆ intersect() [1/2]

◆ intersect() [2/2]

◆ invariant()

◆ is_ancestor_of()

◆ operator=()

Friends And Related Function Documentation

◆ operator<<

Member Data Documentation

◆ _coords

◆ _eval_id_space

◆ _evaluator

◆ _host

◆ _locator

◆ _surface_id_space