structure class More...

#include <a_structure.h>

Collaboration diagram for a_structure:

Classes
class	range_error

Public Member Functions
	a_structure ()

	~a_structure ()

void	clear ()

int	nb () const
	get number of blocks More...

int	rb (const a_block *b) const
	get reference of a block (-1 if no block) More...

double	V () const
	get volume of structure More...

a_point	c () const
	get centre of mass More...

double	m () const
	mass More...

double	Ws () const
	get weight (scalar) More...

a_wrench	W ()
	get weight (wrench) More...

a_wrench	fe ()
	get external force on structure (wrench) More...

a_wrench	ft ()
	get total force on structure fe+W (wrench) More...

double	potential () const
	get potential energy More...

int	add_block (a_block *b)
	add a block to the structure More...

void	link_blocks (int b1, int f1, int b2, int f2)
	link 2 blocks: [b1: ref_block1, f1: ref_face1, b2:...] More...

a_block *	b (const int i) const
	get pointer to the block i More...

bool	connected () const
	check whether all blocks are connected More...

std::vector< int >	out () const
	get list of extreme blocks (blocks connected only to 1 other block) More...

std::vector< int >	in () const
	get list of internal blocks (blocks connected at least to 2 other blocks) More...

std::vector< int >	nodes () const
	get list of blocks connected to more than 2 other blocks (sources of hyperstaticity) More...

void	clearinternal ()
	clear all the internal face forces More...

void	clearexternal ()
	clear all the external face forces More...

void	clearall ()
	clear all the forces on faces More...

void	objective (a_ocriteria *objective)
	set objective function (used for optimisation) More...

double	objective () const
	get value of objective function More...

void	criteria (a_fcriteria *criteria)
	set resistance criteria More...

bool	ok () const
	check if forces on face are acceptable More...

double	penalty () const
	penalty value used for optimization More...

void	penalty_factor (const double v)
	set penalty factor More...

double	penalty_factor () const
	get penalty factor More...

double	objectivep () const
	get value of objective function + penalty*penalty_factor_ More...

void	rotate (int rb, int f, const a_point &x, const a_point &dir, double r)
	rotate of angle r (rad) all blocks connected to rb, around x using axis dir More...

void	rotate (int b, int f, double v, double r)
	rotate of angle r (rad) all blocks connected to b, around f, in the direction of opposite face to f More...

void	slide (int b, int f, double u, double v)
	slide of (u,v) all blocks connected to b in the plane of f More...

void	material (a_material *material)
	link a material More...

a_block *	compute (int b, int f)
	compute as far as possible the forces on the blocks, starting from block b, entrance face f, return the last block for which it succeeded More...

void	compute (const int rb1, const int rf1, const double u1, const double v1, const int rb2, const int rf2, const double u2, const double v2, const int rb3, const int rf3, const double u3, const double v3)
	compute inside forces resulting in resistance line passing by 3 points More...

double	min (const int face, const int rb1, const int rf1, const double u1, const int rb2, const int rf2, const double u2, const int rb3, const int rf3, const double u3)
	vary force on face to get a minimal objective function, respecting face criteria More...

double	mindir (const a_point &dir, const int rb1, const int rf1, double &u1, const int rb2, const int rf2, double &u2, const int rb3, const int rf3, double &u3)
	vary force on faces (in proportion to dir) to get a minimal objective function, respecting face criteria More...

double	max (const int face, const int rb1, const int rf1, const double u1, const int rb2, const int rf2, const double u2, const int rb3, const int rf3, const double u3)
	vary force on face to get a maximal objective function, respecting face criteria More...

void	min (const int rb1, const int rf1, const int rb2, const int rf2)
	compute inside forces leading to a minimal objective function, respecting face criteria More...

void	max (const int rb1, const int rf1, const int rb2, const int rf2)
	compute inside forces leading to a maximal objective function, respecting face criteria More...

void	minsteep (const int rb1, const int rf1, const int rb2, const int rf2)

virtual void	writetri (std::ostream &o) const
	write a triangle file More...

virtual void	writeb (std::ostream &o) const
	write structure in blender format More...

virtual void	writeg (std::ostream &o) const
	write structure in brlcad format More...

void	trianglecloud (a_trianglecloud &) const

void	polyline (a_linecloud &) const

Static Public Member Functions
static const std::string	help ()
	get information about the class More...

Protected Member Functions
bool	check_block (const int rb) const
	check whether references are in range More...

bool	check_blockref (const int rb, const int rf) const
	check whether references are in range More...

bool	faceonexit (const int rb1, const int rf1, const int rb2, const int rf2)
	check whether rf2 in an exit face More...

void	midblock (const int rb1, const int rf1, const int rb2, const int rf2, a_block *&rb, int &rf)
	block and face in between two face blocks More...

void	optimise (const bool is_min, const int rb1, const int rf1, const int rb2, const int rf2)
	compute inside forces leading to an optimal objective function, respecting face criteria More...

void	storeexits (std::vector< int > &) const
	store face exits situation More...

void	restoreexits (std::vector< int > &)
	restore face exits situation More...

double	grad1 (const int rb1, const int rf1, const int rb2, const int rf2, const int rb3, const int rf3, const double *u)
	grad of objective function + penalty More...

double	grad2 (const int rb1, const int rf1, const int rb2, const int rf2, const int rb3, const int rf3, const double *u)
	grad of objective function + penalty More...

double	grad3 (const int rb1, const int rf1, const int rb2, const int rf2, const int rb3, const int rf3, const double *u)
	grad of objective function + penalty More...

Protected Attributes
std::vector< a_block * >	blocks_

a_ocriteria *	objective_

double	penalty_factor_

Friends
std::istream &	operator>> (std::istream &i, a_structure &s)
	input/output More...

std::ostream &	operator<< (std::ostream &o, const a_structure &s)

Detailed Description

structure class

Author: P.Smars

Date: 2010-14

Warning: portability: ansi C++

Definition at line 32 of file a_structure.h.

Constructor & Destructor Documentation

◆ a_structure()

a_structure::a_structure ( )

Definition at line 37 of file a_structure.cxx.

◆ ~a_structure()

a_structure::~a_structure ( )

Definition at line 43 of file a_structure.cxx.

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Member Function Documentation

◆ add_block()

int a_structure::add_block ( a_block * b )

add a block to the structure

Definition at line 119 of file a_structure.cxx.

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◆ b()

a_block * a_structure::b ( const int i ) const

get pointer to the block i

Definition at line 217 of file a_structure.cxx.

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◆ c()

a_point a_structure::c ( ) const

get centre of mass

Definition at line 144 of file a_structure.cxx.

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◆ check_block()

bool a_structure::check_block ( const int rb ) const

protected

check whether references are in range

check if range of rb is ok

Definition at line 439 of file a_structure.cxx.

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◆ check_blockref()

bool a_structure::check_blockref	(	const int	rb,
		const int	rf
	)		const

protected

check whether references are in range

check if range of rb is ok

check if range of rf is ok

Definition at line 448 of file a_structure.cxx.

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◆ clear()

void a_structure::clear ( )

Definition at line 48 of file a_structure.cxx.

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◆ clearall()

void a_structure::clearall ( )

clear all the forces on faces

Definition at line 278 of file a_structure.cxx.

◆ clearexternal()

void a_structure::clearexternal ( )

clear all the external face forces

Definition at line 272 of file a_structure.cxx.

◆ clearinternal()

void a_structure::clearinternal ( )

clear all the internal face forces

Definition at line 266 of file a_structure.cxx.

◆ compute() [1/2]

void a_structure::compute	(	const int	rb1,
		const int	rf1,
		const double	u1,
		const double	v1,
		const int	rb2,
		const int	rf2,
		const double	u2,
		const double	v2,
		const int	rb3,
		const int	rf3,
		const double	u3,
		const double	v3
	)

compute inside forces resulting in resistance line passing by 3 points

check if range of rb is ok

reset the forces on the exit faces of the arch

check whether b2 is in between b1 and b3 compute forces

face is on entrance b2 should be changed

weight in between 1&2 and 2&3

faces of passage

points of passage

compute in one direction

compute in other direction

Definition at line 460 of file a_structure.cxx.

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◆ compute() [2/2]

a_block * a_structure::compute	(	int	b,
		int	f
	)

compute as far as possible the forces on the blocks, starting from block b, entrance face f, return the last block for which it succeeded

Definition at line 419 of file a_structure.cxx.

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◆ connected()

bool a_structure::connected ( ) const

check whether all blocks are connected

Definition at line 223 of file a_structure.cxx.

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◆ criteria()

void a_structure::criteria ( a_fcriteria * criteria )

set resistance criteria

Definition at line 295 of file a_structure.cxx.

◆ faceonexit()

bool a_structure::faceonexit	(	const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2
	)

protected

check whether rf2 in an exit face

Definition at line 384 of file a_structure.cxx.

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◆ fe()

a_wrench a_structure::fe ( )

get external force on structure (wrench)

Definition at line 181 of file a_structure.cxx.

◆ ft()

a_wrench a_structure::ft ( )

get total force on structure fe+W (wrench)

Definition at line 189 of file a_structure.cxx.

◆ grad1()

double a_structure::grad1	(	const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2,
		const int	rb3,
		const int	rf3,
		const double *	u
	)

protected

grad of objective function + penalty

Definition at line 651 of file a_structure.cxx.

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◆ grad2()

double a_structure::grad2	(	const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2,
		const int	rb3,
		const int	rf3,
		const double *	u
	)

protected

grad of objective function + penalty

Definition at line 664 of file a_structure.cxx.

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◆ grad3()

double a_structure::grad3	(	const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2,
		const int	rb3,
		const int	rf3,
		const double *	u
	)

protected

grad of objective function + penalty

Definition at line 677 of file a_structure.cxx.

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◆ help()

const std::string a_structure::help ( )

static

get information about the class

Definition at line 54 of file a_structure.cxx.

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◆ in()

std::vector< int > a_structure::in ( ) const

get list of internal blocks (blocks connected at least to 2 other blocks)

Definition at line 244 of file a_structure.cxx.

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◆ link_blocks()

void a_structure::link_blocks	(	int	b1,
		int	f1,
		int	b2,
		int	f2
	)

link 2 blocks: [b1: ref_block1, f1: ref_face1, b2:...]

Definition at line 205 of file a_structure.cxx.

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◆ m()

double a_structure::m ( ) const

mass

Definition at line 157 of file a_structure.cxx.

◆ material()

void a_structure::material ( a_material * material )

link a material

Definition at line 365 of file a_structure.cxx.

◆ max() [1/2]

double a_structure::max	(	const int	face,
		const int	rb1,
		const int	rf1,
		const double	u1,
		const int	rb2,
		const int	rf2,
		const double	u2,
		const int	rb3,
		const int	rf3,
		const double	u3
	)

vary force on face to get a maximal objective function, respecting face criteria

Definition at line 875 of file a_structure.cxx.

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◆ max() [2/2]

void a_structure::max	(	const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2
	)

compute inside forces leading to a maximal objective function, respecting face criteria

Definition at line 645 of file a_structure.cxx.

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◆ midblock()

void a_structure::midblock	(	const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2,
		a_block *&	rb,
		int &	rf
	)

protected

block and face in between two face blocks

check if ranges are ok

get pointers

Definition at line 543 of file a_structure.cxx.

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◆ min() [1/2]

double a_structure::min	(	const int	face,
		const int	rb1,
		const int	rf1,
		const double	u1,
		const int	rb2,
		const int	rf2,
		const double	u2,
		const int	rb3,
		const int	rf3,
		const double	u3
	)

vary force on face to get a minimal objective function, respecting face criteria

Definition at line 792 of file a_structure.cxx.

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◆ min() [2/2]

void a_structure::min	(	const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2
	)

compute inside forces leading to a minimal objective function, respecting face criteria

Definition at line 769 of file a_structure.cxx.

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◆ mindir()

double a_structure::mindir	(	const a_point &	dir,
		const int	rb1,
		const int	rf1,
		double &	u1,
		const int	rb2,
		const int	rf2,
		double &	u2,
		const int	rb3,
		const int	rf3,
		double &	u3
	)

vary force on faces (in proportion to dir) to get a minimal objective function, respecting face criteria

Definition at line 838 of file a_structure.cxx.

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◆ minsteep()

void a_structure::minsteep	(	const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2
	)

Definition at line 690 of file a_structure.cxx.

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◆ nb()

int a_structure::nb ( ) const

inline

get number of blocks

Definition at line 41 of file a_structure.h.

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◆ nodes()

std::vector< int > a_structure::nodes ( ) const

get list of blocks connected to more than 2 other blocks (sources of hyperstaticity)

Definition at line 255 of file a_structure.cxx.

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◆ objective() [1/2]

double a_structure::objective ( ) const

get value of objective function

Definition at line 284 of file a_structure.cxx.

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◆ objective() [2/2]

void a_structure::objective ( a_ocriteria * objective )

inline

set objective function (used for optimisation)

Definition at line 81 of file a_structure.h.

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◆ objectivep()

double a_structure::objectivep ( ) const

get value of objective function + penalty*penalty_factor_

Definition at line 290 of file a_structure.cxx.

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◆ ok()

bool a_structure::ok ( ) const

check if forces on face are acceptable

Definition at line 301 of file a_structure.cxx.

◆ optimise()

void a_structure::optimise	(	const bool	is_min,
		const int	rb1,
		const int	rf1,
		const int	rb2,
		const int	rf2
	)

protected

compute inside forces leading to an optimal objective function, respecting face criteria

Definition at line 724 of file a_structure.cxx.

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◆ out()

std::vector< int > a_structure::out ( ) const

get list of extreme blocks (blocks connected only to 1 other block)

Definition at line 233 of file a_structure.cxx.

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◆ penalty()

double a_structure::penalty ( ) const

penalty value used for optimization

Definition at line 311 of file a_structure.cxx.

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◆ penalty_factor() [1/2]

double a_structure::penalty_factor ( ) const

inline

get penalty factor

Definition at line 93 of file a_structure.h.

◆ penalty_factor() [2/2]

void a_structure::penalty_factor ( const double v )

inline

set penalty factor

Definition at line 91 of file a_structure.h.

◆ polyline()

void a_structure::polyline ( a_linecloud & li ) const

Definition at line 961 of file a_structure.cxx.

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◆ potential()

double a_structure::potential ( ) const

get potential energy

Definition at line 197 of file a_structure.cxx.

◆ rb()

int a_structure::rb ( const a_block * b ) const

get reference of a block (-1 if no block)

Definition at line 125 of file a_structure.cxx.

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◆ restoreexits()

void a_structure::restoreexits ( std::vector< int > & exits )

protected

restore face exits situation

Definition at line 377 of file a_structure.cxx.

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◆ rotate() [1/2]

void a_structure::rotate	(	int	b,
		int	f,
		double	v,
		double	r
	)

rotate of angle r (rad) all blocks connected to b, around f, in the direction of opposite face to f

Definition at line 337 of file a_structure.cxx.

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◆ rotate() [2/2]

void a_structure::rotate	(	int	rb,
		int	f,
		const a_point &	x,
		const a_point &	dir,
		double	r
	)

rotate of angle r (rad) all blocks connected to rb, around x using axis dir

Definition at line 324 of file a_structure.cxx.

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◆ slide()

void a_structure::slide	(	int	b,
		int	f,
		double	u,
		double	v
	)

slide of (u,v) all blocks connected to b in the plane of f

Definition at line 348 of file a_structure.cxx.

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◆ storeexits()

void a_structure::storeexits ( std::vector< int > & exits ) const

protected

store face exits situation

Definition at line 371 of file a_structure.cxx.

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◆ trianglecloud()

void a_structure::trianglecloud ( a_trianglecloud & tri ) const

Definition at line 954 of file a_structure.cxx.

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◆ V()

double a_structure::V ( ) const

get volume of structure

Definition at line 136 of file a_structure.cxx.

◆ W()

a_wrench a_structure::W ( )

get weight (wrench)

Definition at line 173 of file a_structure.cxx.

◆ writeb()

void a_structure::writeb ( std::ostream & o ) const

virtual

write structure in blender format

Definition at line 930 of file a_structure.cxx.

◆ writeg()

void a_structure::writeg ( std::ostream & o ) const

virtual

write structure in brlcad format

Definition at line 939 of file a_structure.cxx.

◆ writetri()

void a_structure::writetri ( std::ostream & o ) const

virtual

write a triangle file

Definition at line 922 of file a_structure.cxx.

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◆ Ws()

double a_structure::Ws ( ) const

get weight (scalar)

Definition at line 165 of file a_structure.cxx.

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Friends And Related Function Documentation

◆ operator<<

std::ostream& operator<<	(	std::ostream &	o,
		const a_structure &	s
	)

friend

Definition at line 1004 of file a_structure.cxx.

◆ operator>>

std::istream& operator>>	(	std::istream &	i,
		a_structure &	s
	)

friend

input/output

Definition at line 991 of file a_structure.cxx.

Member Data Documentation

◆ blocks_

std::vector<a_block *> a_structure::blocks_

protected

Definition at line 187 of file a_structure.h.

◆ objective_

a_ocriteria* a_structure::objective_

protected

Definition at line 188 of file a_structure.h.

◆ penalty_factor_

double a_structure::penalty_factor_

protected

Definition at line 189 of file a_structure.h.

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

include/a_structure.h
mechanics/a_structure.cxx

Classes

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ a_structure()

◆ ~a_structure()

Member Function Documentation

◆ add_block()

◆ b()

◆ c()

◆ check_block()

◆ check_blockref()

◆ clear()

◆ clearall()

◆ clearexternal()

◆ clearinternal()

◆ compute() [1/2]

◆ compute() [2/2]

◆ connected()

◆ criteria()

◆ faceonexit()

◆ fe()

◆ ft()

◆ grad1()

◆ grad2()

◆ grad3()

◆ help()

◆ in()

◆ link_blocks()

◆ m()

◆ material()

◆ max() [1/2]

◆ max() [2/2]

◆ midblock()

◆ min() [1/2]

◆ min() [2/2]

◆ mindir()

◆ minsteep()

◆ nb()

◆ nodes()

◆ objective() [1/2]

◆ objective() [2/2]

◆ objectivep()

◆ ok()

◆ optimise()

◆ out()

◆ penalty()

◆ penalty_factor() [1/2]

◆ penalty_factor() [2/2]

◆ polyline()

◆ potential()

◆ rb()

◆ restoreexits()

◆ rotate() [1/2]

◆ rotate() [2/2]

◆ slide()

◆ storeexits()

◆ trianglecloud()

◆ V()

◆ W()

◆ writeb()

◆ writeg()

◆ writetri()

◆ Ws()

Friends And Related Function Documentation

◆ operator<<

◆ operator>>

Member Data Documentation

◆ blocks_

◆ objective_

◆ penalty_factor_