Triangle Class Reference

Class representing a Triangle. More...

#include <Triangle.h>

List of all members.

Public Types
typedef Vec3(Triangle::*	VectorFieldFunction )() const
typedef double(Triangle::*	ScalarFieldFunction )() const

Public Member Functions
	Triangle (int, int, int, const Vec3 &, const Vec3 &, const Vec3 &, int, int)
double	sep (const Vec3 &) const
pair< bool, double >	dist (const Vec3 &) const
Vec3	getBoundingBoxMin () const
Vec3	getBoundingBoxMax () const
Vec3	getNormal () const
Vec3	toGlobal (const Vec3 &)
Vec3	toLocal (const Vec3 &)
bool	containsEdge (const Vec3 &, const Vec3 &) const
void	moveNode (int, const Vec3 &)
void	move (const Vec3 &)
int	getID ()
void	applyForce (const Vec3 &f)
void	zeroForce ()
pair< int, Vec3 >	getP0 () const
pair< int, Vec3 >	getP1 () const
pair< int, Vec3 >	getP2 () const
Vec3	getForce () const
double	getPressure () const

Static Public Member Functions
static VectorFieldFunction	getVectorFieldFunction (const string &)
static ScalarFieldFunction	getScalarFieldFunction (const string &)

Friends
ostream &	operator<< (ostream &, const Triangle &)
	output for debugging purposes

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Detailed Description

Class representing a Triangle.

Author:

Steffen Abe $Revision$ $$Date$

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Constructor & Destructor Documentation

Triangle::Triangle	(	int	id0,
		int	id1,
		int	id2,
		const Vec3 &	v0,
		const Vec3 &	v1,
		const Vec3 &	v2,
		int	tri_id,
		int	tag
	)

Construct triangle from the corner coordinates. It is assumed that the corners are given anticlockwise and the normal is calculated accordingly.

Parameters:

id0	id of the first corner
id1	id of the 2nd corner
id2	id of the 3rd corner
v0	first corner
v1	second corner
v2	third corner
tri_id	triangle id
tag	triangle tag

References Matrix3::inv().

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Member Function Documentation

bool Triangle::containsEdge	(	const Vec3 &	p1,
		const Vec3 &	p2
	)		const

check if an edge given by 2 points is in the triangle

Parameters:

p1
p2

pair< bool, double > Triangle::dist

(

const Vec3 &

p

)

const

Get the signed distance between a point and the triangle. If the closest point on the supporting plane is outside the triangle, the first component of the return value is "false", otherwise "true"

Parameters:

p

the point

Referenced by ETriangleInteraction::calcForces(), and Edge::isValidContact().

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Vec3 Triangle::getBoundingBoxMax

(

)

const

Get max. corner of axis-aligned bounding box of the triangle.

Vec3 Triangle::getBoundingBoxMin

(

)

const

Get min. corner of axis-aligned bounding box of the triangle.

double Triangle::getPressure

(

)

const

Get pressure on the triangle from interaction forces

Referenced by getScalarFieldFunction().

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Triangle::ScalarFieldFunction Triangle::getScalarFieldFunction ( const string &  name )

static

Get the triangle member function which returns a scalar field of a given name. Returns NULL if a field with that name doesn't exist.

Parameters:

name	the name of the field

References getPressure().

Referenced by TSubLattice< T >::addScalarTriangleField().

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Triangle::VectorFieldFunction Triangle::getVectorFieldFunction ( const string &  name )

static

Get the triangle member function which returns a vector field of a given name. Returns NULL if a field with that name doesn't exist.

Parameters:

name	the name of the field

Referenced by TSubLattice< T >::addVectorTriangleField().

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void Triangle::move

(

const Vec3 &

d

)

Move (translate) whole triangle.

Parameters:

d	the amount of movement

void Triangle::moveNode	(	int	id,
		const Vec3 &	d
	)

Move one of the corners. The identifier for the corner is the global node id. If the node with the id is not in the triangle, do nothing.

Parameters:

id	the global id of the node to be moved
d	the amount of movement

References Matrix3::inv().

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double Triangle::sep

(

const Vec3 &

p

)

const

Get distance between point and the triangle.

Parameters:

p

the point

Vec3 Triangle::toGlobal

(

const Vec3 &

p

)

Transform a point in local coordinates into global coordiantes. The local coordinate systems is formed by (P1-P0,P2-P0,N).

Parameters:

p	the point to be transformed

Referenced by BTriangleInteraction::calcForces().

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Vec3 Triangle::toLocal

(

const Vec3 &

p

)

Transform a point in global coordinates into local coordiantes. The local coordinate systems is formed by (P1-P0,P2-P0,N).

Parameters:

p	the point to be transformed

Referenced by BTriangleInteraction::BTriangleInteraction().

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Friends And Related Function Documentation

ostream& operator<< ( ostream &  ost, const Triangle &  T  )

friend

output for debugging purposes

output Triangle to ostream

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

• Triangle.h
• Triangle.cpp