A wall that is the inside (concave side) of an arc of a cylinder, like a pipe or half-pipe. More...

#include <ArcWall.h>

Inheritance diagram for ArcWall:

Public Member Functions
	ArcWall ()
	Default constructor. More...

	ArcWall (const ArcWall &aw)
	Copy constructor. More...

	~ArcWall () override=default
	Default destructor. More...

void	set (Vec3D axis, Vec3D pos, Mdouble radius, Vec3D centreline, Mdouble semiangle)
	Set parameters of the ArcWall. More...

ArcWall *	copy () const override
	Pure virtual function that can be overwritten in inherited classes in order to copy a BaseWall. More...

bool	getDistanceAndNormal (const BaseParticle &p, Mdouble &distance, Vec3D &normal) const override
	Pure virtual function that computes the distance of a BaseParticle to this wall and returns the normal of this wall if there is a collision. More...

BaseInteraction *	getInteractionWith (BaseParticle p, unsigned timeStamp, InteractionHandler interactionHandler) override
	Returns the interaction between this object and a given BaseParticle. More...

void	read (std::istream &is) override
	Reads a BaseInteractable from an input stream. More...

void	write (std::ostream &os) const override
	Write a BaseInteractable to an output stream. More...

std::string	getName () const override
	A purely virtual function. More...

Public Member Functions inherited from BaseWall
	BaseWall ()
	Default constructor. More...

	BaseWall (const BaseWall &w)
	Copy constructor. More...

	~BaseWall () override
	Default destructor. More...

void	read (std::istream &is) override
	Function that reads a BaseWall from an input stream, usually a restart file. More...

void	write (std::ostream &os) const override
	Function that writes a BaseWall to an output stream, usually a restart file. More...

virtual bool	getDistanceNormalOverlap (const BaseParticle &P, Mdouble &distance, Vec3D &normal_return, Mdouble &overlap) const

virtual bool	getDistanceNormalOverlapSuperquadric (const SuperQuadricParticle &p, Mdouble &distance, Vec3D &normal_return, Mdouble &overlap) const

virtual Vec3D	getFurthestPointSuperQuadric (const Vec3D &normalBodyFixed, const Vec3D &axes, Mdouble eps1, Mdouble eps2) const

virtual void	setHandler (WallHandler *handler)
	A function which sets the WallHandler for this BaseWall. More...

WallHandler *	getHandler () const
	A function which returns the WallHandler that handles this BaseWall. More...

void	setIndSpecies (unsigned int indSpecies) override
	Define the species of this wall using the index of the species in the SpeciesHandler in this DPMBase. More...

void	setSpecies (const ParticleSpecies *species)
	Defines the species of the current wall. More...

bool	isFixed () const override

void	setForceControl (Vec3D forceGoal, Vec3D gainFactor, Vec3D baseVelocity={0, 0, 0})
	Slowly adjusts the force on a wall towards a specified goal, by adjusting (prescribing) the velocity of the wall. More...

virtual bool	isLocal (Vec3D &min, Vec3D &max) const

bool	getLinePlaneIntersect (Vec3D &intersect, const Vec3D &p0, const Vec3D &p1, const Vec3D &n, const Vec3D &p)

bool	isInsideWallVTK (const Vec3D &point, const Vec3D &normal, const Vec3D &position) const

void	projectOntoWallVTK (Vec3D &point0, const Vec3D &point1, const Vec3D &normal, const Vec3D &position) const

void	intersectVTK (std::vector< Vec3D > &points, Vec3D normal, Vec3D position) const

virtual BaseInteraction *	getInteractionWithSuperQuad (SuperQuadricParticle p, unsigned timeStamp, InteractionHandler interactionHandler)

virtual void	writeVTK (VTKContainer &vtk) const

void	getVTK (std::vector< Vec3D > &points, std::vector< std::vector< double >> &triangleStrips)

const Vec3D	getAxis () const

BaseInteraction *	getInteractionWith (BaseParticle p, unsigned timeStamp, InteractionHandler interactionHandler) override
	Returns the interaction between this wall and a given particle, nullptr if there is no interaction. More...

virtual void	actionsOnRestart ()
	No implementation but can be overidden in its derived classes. More...

virtual void	actionsAfterParticleGhostUpdate ()
	No implementation but can be overidden in its derived classes. More...

virtual void	handleParticleAddition (unsigned int id, BaseParticle *p)
	Handles the addition of particles to the particleHandler. More...

virtual void	handleParticleRemoval (unsigned int id)
	Handles the addition of particles to the particleHandler. More...

virtual void	checkInteractions (InteractionHandler *interactionHandler, unsigned int timeStamp)
	Check if all interactions are valid. More...

bool	getVTKVisibility () const

void	setVTKVisibility (bool vtkVisibility)

void	addRenderedWall (BaseWall *w)

BaseWall *	getRenderedWall (size_t i) const

std::vector< BaseWall * >	getRenderedWalls () const

void	removeRenderedWalls ()

void	renderWall (VTKContainer &vtk)

void	addParticlesAtWall (unsigned numElements=50)

void	setVelocityControl (Vec3D forceGoal, Vec3D gainFactor, Vec3D baseVelocity)

virtual void	writeWallDetailsVTK (VTKData &data) const

virtual void	computeWear ()

Public Member Functions inherited from BaseInteractable
	BaseInteractable ()
	Default BaseInteractable constructor. More...

	BaseInteractable (const BaseInteractable &p)
	Copy constructor. More...

	~BaseInteractable () override
	Destructor, it simply destructs the BaseInteractable and all the objects it contains. More...

unsigned int	getIndSpecies () const
	Returns the index of the species associated with the interactable object. More...

const ParticleSpecies *	getSpecies () const
	Returns a pointer to the species of this BaseInteractable. More...

void	setSpecies (const ParticleSpecies *species)
	Sets the species of this BaseInteractable. More...

const Vec3D &	getForce () const
	Returns the force on this BaseInteractable. More...

const Vec3D &	getTorque () const
	Returns the torque on this BaseInteractable. More...

void	setForce (const Vec3D &force)
	Sets the force on this BaseInteractable. More...

void	setTorque (const Vec3D &torque)
	Sets the torque on this BaseInteractable. More...

void	addForce (const Vec3D &addForce)
	Adds an amount to the force on this BaseInteractable. More...

void	addTorque (const Vec3D &addTorque)
	Adds an amount to the torque on this BaseInteractable. More...

virtual void	resetForceTorque (int numberOfOMPthreads)

void	sumForceTorqueOMP ()

const Vec3D &	getPosition () const
	Returns the position of this BaseInteractable. More...

const Quaternion &	getOrientation () const
	Returns the orientation of this BaseInteractable. More...

virtual void	setPosition (const Vec3D &position)
	Sets the position of this BaseInteractable. More...

void	setOrientationViaNormal (Vec3D normal)
	Sets the orientation of this BaseInteractable by defining the vector that results from the rotation of the (1,0,0) vector. More...

void	setOrientationViaEuler (Vec3D eulerAngle)
	Sets the orientation of this BaseInteractable by defining the euler angles. More...

virtual void	setOrientation (const Quaternion &orientation)
	Sets the orientation of this BaseInteractable. More...

virtual void	move (const Vec3D &move)
	Moves this BaseInteractable by adding an amount to the position. More...

virtual void	rotate (const Vec3D &angularVelocityDt)
	Rotates this BaseInteractable. More...

const std::vector< BaseInteraction * > &	getInteractions () const
	Returns a list of interactions which belong to this interactable. More...

void	addInteraction (BaseInteraction *I)
	Adds an interaction to this BaseInteractable. More...

bool	removeInteraction (BaseInteraction *I)
	Removes an interaction from this BaseInteractable. More...

void	copyInteractionsForPeriodicParticles (const BaseInteractable &p)
	Copies interactions to this BaseInteractable whenever a periodic copy made. More...

void	setVelocity (const Vec3D &velocity)
	set the velocity of the BaseInteractable. More...

void	setAngularVelocity (const Vec3D &angularVelocity)
	set the angular velocity of the BaseInteractble. More...

void	addVelocity (const Vec3D &velocity)
	adds an increment to the velocity. More...

void	addAngularVelocity (const Vec3D &angularVelocity)
	add an increment to the angular velocity. More...

virtual const Vec3D &	getVelocity () const
	Returns the velocity of this interactable. More...

virtual const Vec3D &	getAngularVelocity () const
	Returns the angular velocity of this interactable. More...

void	setPrescribedPosition (const std::function< Vec3D(double)> &prescribedPosition)
	Allows the position of an infinite mass interactable to be prescribed. More...

void	applyPrescribedPosition (double time)
	Computes the position from the user defined prescribed position function. More...

void	setPrescribedVelocity (const std::function< Vec3D(double)> &prescribedVelocity)
	Allows the velocity of an infinite mass interactable to be prescribed. More...

void	applyPrescribedVelocity (double time)
	Computes the velocity from the user defined prescribed velocity function. More...

void	setPrescribedOrientation (const std::function< Quaternion(double)> &prescribedOrientation)
	Allows the orientation of the infinite mass interactbale to be prescribed. More...

void	applyPrescribedOrientation (double time)
	Computes the orientation from the user defined prescribed orientation function. More...

void	setPrescribedAngularVelocity (const std::function< Vec3D(double)> &prescribedAngularVelocity)
	Allows the angular velocity of the infinite mass interactable to be prescribed. More...

void	applyPrescribedAngularVelocity (double time)
	Computes the angular velocity from the user defined prescribed angular velocity. More...

virtual const Vec3D	getVelocityAtContact (const Vec3D &contact) const
	Returns the velocity at the contact point, use by many force laws. More...

void	integrateBeforeForceComputation (double time, double timeStep)
	This is part of integrate routine for objects with infinite mass. More...

void	integrateAfterForceComputation (double time, double timeStep)
	This is part of the integration routine for objects with infinite mass. More...

virtual Mdouble	getInvMass () const

virtual Mdouble	getCurvature (const Vec3D &labFixedCoordinates) const

virtual bool	isFaceContact (const Vec3D &normal) const

Public Member Functions inherited from BaseObject
	BaseObject ()=default
	Default constructor. More...

	BaseObject (const BaseObject &p)=default
	Copy constructor, copies all the objects BaseObject contains. More...

virtual	~BaseObject ()=default
	virtual destructor More...

virtual void	moveInHandler (unsigned int index)
	Except that it is virtual, it does the same thing as setIndex() does. More...

void	setIndex (unsigned int index)
	Allows one to assign an index to an object in the handler/container. More...

void	setId (unsigned long id)
	Assigns a unique identifier to each object in the handler (container) which remains constant even after the object is deleted from the container/handler. More...

unsigned int	getIndex () const
	Returns the index of the object in the handler. More...

unsigned int	getId () const
	Returns the unique identifier of any particular object. More...

void	setGroupId (unsigned groupId)

unsigned	getGroupId () const

Private Attributes
Vec3D	axis_

Vec3D	pos_

Mdouble	radius_

Vec3D	centreline_

Mdouble	semiangle_

Additional Inherited Members
Static Public Member Functions inherited from BaseWall
static void	addToVTK (const std::vector< Vec3D > &points, VTKContainer &vtk)
	Takes the points provided and adds a triangle strip connecting these points to the vtk container. More...

Detailed Description

A wall that is the inside (concave side) of an arc of a cylinder, like a pipe or half-pipe.

The ArcWall is specified by the cylinder's axis (in turn by a position vector and a direction vector), its radius, a 'centreline direction' (pointing from a point on the axis to a point on the middle of the arc), and the semiangle of the arc.

The semiangle is stored and specified in radians.

For a wall that is the outside of an arc, use AxisymmetricIntersectionOfWalls or Combtooth instead.

Constructor & Destructor Documentation

◆ ArcWall() [1/2]

ArcWall::ArcWall ( )

Default constructor.

 {
     axis_ = Vec3D(0, 0, 1);
     pos_ = Vec3D(0, 1, 0);
     radius_ = 1;
     centreline_ = Vec3D(0, -1, 0);
     semiangle_ = 20. * constants::degree;
 }

References axis_, centreline_, constants::degree, pos_, radius_, and semiangle_.

Referenced by copy().

◆ ArcWall() [2/2]

ArcWall::ArcWall ( const ArcWall & aw )

Copy constructor.

                                      : BaseWall(other)
 {
     axis_ = other.axis_;
     pos_ = other.pos_;
     radius_ = other.radius_;
     centreline_ = other.centreline_;
     semiangle_ = other.semiangle_;
 }

References axis_, centreline_, pos_, radius_, and semiangle_.

◆ ~ArcWall()

ArcWall::~ArcWall ( )

overridedefault

Default destructor.

Member Function Documentation

◆ copy()

ArcWall * ArcWall::copy ( ) const

overridevirtual

Pure virtual function that can be overwritten in inherited classes in order to copy a BaseWall.

Returns: A pointer to the new BaseWall.

Implements BaseWall.

 {
     return new ArcWall(*this);
 }

References ArcWall().

◆ getDistanceAndNormal()

bool ArcWall::getDistanceAndNormal	(	const BaseParticle &	P,
		Mdouble &	distance,
		Vec3D &	normal_return
	)		const

overridevirtual

Pure virtual function that computes the distance of a BaseParticle to this wall and returns the normal of this wall if there is a collision.

Beware, the distance and normal are output parameters, not return values!

Parameters

[in]	P	Reference to the BaseParticle we want to compute the distance to the BaseWall of.
[out]	distance	Distance of the BaseParticle to the BaseWall.
[out]	normal_return	The normal of the wall. Is only given if there is a collision.

Returns: A boolean which indicates if there is a collision between the BaseParticle and the wall.

Implements BaseWall.

 {
     Vec3D nearestPointOnAxis = pos_ + Vec3D::dot(p.getPosition() - pos_, axis_) * axis_;
     Mdouble distanceFromAxis = (p.getPosition() - nearestPointOnAxis).getLength();
     // distance between x0 and the surface
     distance = radius_ - distanceFromAxis;
     if (distance >= p.getWallInteractionRadius(this))
         return false;
     
     // the normal points into the wall, i.e. out from the axis
     normal = p.getPosition() - nearestPointOnAxis;
     normal.normalise();
     
     // If the arc is actually a full circle then there is definitely an
     // interaction, regardless of direction.
     if (semiangle_ >= 180. * constants::degree)
         return true;
     
     // Otherwise it depends on whether the interaction direction is
     // sufficiently aligned with the centreline.
     return acos(Vec3D::dot(normal, centreline_)) < semiangle_;
 }

References axis_, centreline_, constants::degree, Vec3D::dot(), BaseInteractable::getPosition(), BaseParticle::getWallInteractionRadius(), Vec3D::normalise(), pos_, radius_, and semiangle_.

Referenced by getInteractionWith().

◆ getInteractionWith()

BaseInteraction * ArcWall::getInteractionWith	(	BaseParticle *	P,
		unsigned	timeStamp,
		InteractionHandler *	interactionHandler
	)

overridevirtual

Returns the interaction between this object and a given BaseParticle.

Todo:

TW make sure this function sets normal, distance, overlap, contact point

AT why is this a BaseParticle and not a BaseInteratable.

Todo:: Hacked please fix @Thomas

Implements BaseInteractable.

 {
     Mdouble distance;
     Vec3D normal;
     if (getDistanceAndNormal(*p, distance, normal))
     {
         BaseInteraction* c = interactionHandler->getInteraction(p, this, timeStamp);
         c->setNormal(-normal);
         c->setDistance(distance);
         c->setOverlap(p->getRadius() - distance);
         c->setContactPoint(p->getPosition() - (p->getRadius() - 0.5 * c->getOverlap()) * c->getNormal());
         return c;
     }
     else
         return nullptr;
 }

References getDistanceAndNormal(), InteractionHandler::getInteraction(), BaseInteraction::getNormal(), BaseInteraction::getOverlap(), BaseInteractable::getPosition(), BaseParticle::getRadius(), BaseInteraction::setContactPoint(), BaseInteraction::setDistance(), BaseInteraction::setNormal(), and BaseInteraction::setOverlap().

◆ getName()

std::string ArcWall::getName ( ) const

overridevirtual

A purely virtual function.

Implements BaseObject.

 {
     return "ArcWall";
 }

◆ read()

void ArcWall::read ( std::istream & is )

overridevirtual

Reads a BaseInteractable from an input stream.

BaseInteacatable read functions. Reads in all the information about an interacatable. Note, this can be from any istream but would normally be a file See also BaseInteractable::write

Parameters

[in] is std::istream to which the information is read from.

Reimplemented from BaseInteractable.

 {
     BaseWall::read(is);
     std::string dummy;
     is >> dummy >> axis_
        >> dummy >> pos_
        >> dummy >> radius_
        >> dummy >> centreline_
        >> dummy >> semiangle_;
 }

References axis_, centreline_, pos_, radius_, BaseWall::read(), and semiangle_.

◆ set()

void ArcWall::set	(	Vec3D	axis,
		Vec3D	pos,
		Mdouble	radius,
		Vec3D	centreline,
		Mdouble	semiangle
	)

Set parameters of the ArcWall.

\detail The axis vector is normalized. The centreline vector is also treated to remove any component parallel to the axis, and the remaining component is normalized.

Parameters

axis	The lengthwise direction of the cylinder. For a 2D simulation this should be Vec3D(0, 0, 1).
pos	A position along the axis.
radius	The radius of the arc.
centreline	A vector pointing from the axis to the middle of the arc.
semiangle	The extent of the arc from either side of the centre, in radians. For a half-pipe this is pi/2 (90 degrees).

 {
     axis_ = axis;
     pos_ = pos;
     radius_ = radius;
     centreline_ = centreline;
     semiangle_ = semiangle;
     
     /* Normalise axis_ and centreline_, and make centreline_ perpendicular to axis_ */
     axis_.normalise();
     centreline_ = centreline_ - Vec3D::dot(centreline_, axis_) * axis_;
     centreline_.normalise();
 }

References axis_, centreline_, Vec3D::dot(), Vec3D::normalise(), pos_, radius_, and semiangle_.

◆ write()

void ArcWall::write ( std::ostream & os ) const

overridevirtual

Write a BaseInteractable to an output stream.

Parameters

[in] os The output stream to which the BaseInteractable is written.

BaseInteractable write function. Writes out all the information required to recreate this interactable. To write this interactable to the screen call write(std::cout). See also BaseInteractable::read

Parameters

[in] os std::ostream to which the information is written. Note, is any ostream is can be file or screen.

Todo:: take the zero out

Reimplemented from BaseInteractable.

 {
     BaseWall::write(os);
     os << " axis " << axis_
        << " pos " << pos_
        << " radius " << radius_
        << " centreline " << centreline_
        << " semiangle " << semiangle_;
 }

References axis_, centreline_, pos_, radius_, semiangle_, and BaseWall::write().

Member Data Documentation

◆ axis_

Vec3D ArcWall::axis_

private

Referenced by ArcWall(), getDistanceAndNormal(), read(), set(), and write().

◆ centreline_

Vec3D ArcWall::centreline_

private

Referenced by ArcWall(), getDistanceAndNormal(), read(), set(), and write().

◆ pos_

Vec3D ArcWall::pos_

private

Referenced by ArcWall(), getDistanceAndNormal(), read(), set(), and write().

◆ radius_

Mdouble ArcWall::radius_

private

Referenced by ArcWall(), getDistanceAndNormal(), read(), set(), and write().

◆ semiangle_

Mdouble ArcWall::semiangle_

private

Referenced by ArcWall(), getDistanceAndNormal(), read(), set(), and write().

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

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ArcWall() [1/2]

◆ ArcWall() [2/2]

◆ ~ArcWall()

Member Function Documentation

◆ copy()

◆ getDistanceAndNormal()

◆ getInteractionWith()

◆ getName()

◆ read()

◆ set()

◆ write()

Member Data Documentation

◆ axis_

◆ centreline_

◆ pos_

◆ radius_

◆ semiangle_