Use AxisymmetricIntersectionOfWalls to Screw Screw::read Screw::read Screw::read define axisymmetric walls, such as cylinders, cones, etc. More...

#include <AxisymmetricIntersectionOfWalls.h>

Inheritance diagram for AxisymmetricIntersectionOfWalls:

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

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

	AxisymmetricIntersectionOfWalls (Vec3D position, Vec3D normal, std::vector< normalAndPosition > walls, const ParticleSpecies *species)
	Constructor setting values. More...

	~AxisymmetricIntersectionOfWalls () override
	Destructor. More...

AxisymmetricIntersectionOfWalls &	operator= (const AxisymmetricIntersectionOfWalls &other)
	Copy assignment operator. More...

AxisymmetricIntersectionOfWalls *	copy () const final
	Wall copy method. It calls the copy constructor of this Wall, useful for polymorphism. More...

bool	getDistanceAndNormal (const BaseParticle &P, Mdouble &distance, Vec3D &normal_return) const final
	Computes the distance from the wall for a given BaseParticle and returns true if there is a collision. If there is a collision, also return the normal vector. More...

void	read (std::istream &is) final
	reads wall More...

void	write (std::ostream &os) const final
	outputs wall More...

std::string	getName () const final
	Returns the name of the object. More...

void	setAxis (Vec3D a)

void	convertLimits (Vec3D &min, Vec3D &max) const

void	writeVTK (VTKContainer &vtk) const override

void	writeVTK (VTKContainer &vtk, Vec3D min, Vec3D max) const

const std::vector< Mdouble > &	getDisplayedSegments () const
	Gets the displayed segments. More...

void	setDisplayedSegments (const std::vector< Mdouble > &displayedSegments)
	Sets the displayed segments. More...

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

	IntersectionOfWalls (const IntersectionOfWalls &other)
	Copy constructor. More...

	IntersectionOfWalls (const std::vector< normalAndPosition > &walls, const ParticleSpecies *species)
	Constructor setting values. More...

	~IntersectionOfWalls () override
	Destructor. More...

IntersectionOfWalls &	operator= (const IntersectionOfWalls &other)

IntersectionOfWalls *	copy () const override
	Wall copy method. It calls the copy constructor of this Wall, useful for polymorphism. More...

void	clear ()
	Removes all parts of the walls. More...

void	setSpecies (const ParticleSpecies *species)
	sets species of subwalls as well More...

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

unsigned int	getNumberOfObjects ()
	Returns the number of objects. More...

void	addObject (Vec3D normal, Vec3D point)
	Adds a wall to the set of infinite walls, given a normal vector pointing into the wall (i.e. out of the simulation domain), going through the point, so that normalx=normalpoint. More...

void	addObject (Quaternion orientation, Vec3D position)

void	add3PointObject (Vec3D PointA, Vec3D PointB, Vec3D PointC)

void	setPointsAndLines (unsigned int n)

void	addTetraSTL (Vec3D PointA, Vec3D PointB, Vec3D PointC, Vec3D WallNormal, Mdouble Thickness, int wallidentifier)
	constructs a tetrahedron for an STL file input More...

void	addTetra (const Vec3D &PointA, const Vec3D &PointB, const Vec3D &PointC, Mdouble &Thickness)
	constructs a tetrahedron from 3 input coordinates More...

void	addPlate (const Vec3D &PointA, const Vec3D &PointB, const Vec3D &PointC, const Vec3D &WallNormal, const Mdouble &Thickness, int wallidentifier)

MERCURYDPM_DEPRECATED void	addObject (Vec3D normal, Mdouble position)
	Adds a wall to the set of finite walls, given an normal vector pointing into the wall (i.e. out of the flow domain), to give a plane defined by normal*x=position. More...

void	createOpenPrism (std::vector< Vec3D > points, Vec3D prismAxis)
	Creates an open prism which is a polygon between the points, except the first and last point, and extends infinitely in the PrismAxis direction. Note that if you view from inside of your geometry, the shape formed by points has to be convex, otherwise it will not create the wall correctly. More...

void	createPrism (std::vector< Vec3D > points, Vec3D prismAxis)
	Creates an open prism which is a polygon between the points and extends infinitely in the PrismAxis direction. Note that if you view from inside of your geometry, the shape formed by points has to be convex, otherwise it will not create the wall correctly. More...

void	createOpenPrism (std::vector< Vec3D > points)
	Creates an open prism which is a polygon between the points, except the first and last point, and extends infinitely in the direction perpendicular to the first and second wall. Note that if you view from inside of your geometry, the shape formed by points has to be convex, otherwise it will not create the wall correctly. More...

void	createPrism (std::vector< Vec3D > points)
	Creates an open prism which is a polygon between the points and extends infinitely in the direction perpendicular to the first and second wall. Note that if you view from inside of your geometry, the shape formed by points has to be convex, otherwise it will not create the wall correctly. More...

bool	getDistanceAndNormal (const BaseParticle &p, Mdouble &distance, Vec3D &normal_return) const override
	Compute the distance from the wall for a given BaseParticle and return if there is a collision. If there is a collision, also return the normal vector. More...

bool	getDistanceAndNormal (const Vec3D &position, Mdouble wallInteractionRadius, Mdouble &distance, Vec3D &normal_return) const
	Compute the distance from the wall for a given BaseParticle and return if there is an interaction. If there is an interaction, also return the normal vector. More...

void	read (std::istream &is) override
	Move the IntersectionOfWalls to a new position, which is a Vec3D from the old position. More...

void	write (std::ostream &os) const override
	Writes an IntersectionOfWalls to an output stream, for example a restart file. More...

std::string	getName () const override
	Returns the name of the object, here the string "IntersectionOfWalls". More...

void	writeVTK (VTKContainer &vtk) const override

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

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

	~BaseWall () override
	Default destructor. 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

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)

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
std::vector< Mdouble >	displayedSegments_
	The starting end ending points of segments that are displayed in VTK. More...

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...

Protected Attributes inherited from IntersectionOfWalls
std::vector< InfiniteWall >	wallObjects_
	The wall "segments"/directions that together make up the finite wall. More...

std::vector< Vec3D >	C_
	A vector that stores the intersection point of three different InfiniteWall. More...

Detailed Description

Use AxisymmetricIntersectionOfWalls to Screw Screw::read Screw::read Screw::read define axisymmetric walls, such as cylinders, cones, etc.

An AxisymmetricIntersectionOfWalls is equivalent to an IntersectionOfWalls where the Cartesian coordinate system (x,y,z) is replaced by a cylindrical coordinate system \((\hat{r},\theta,\hat{z})\). The origin and orientation of the cylindrical coordinate system is defined by the position and orientation of the wall, respectively.

In other words, a particle touches an AxisymmetricIntersectionOfWalls, if it touches the IntersectionOfWalls object in the \((r,\theta,z)\) coordinate system.

Thus, you need to define:

the position p of the wall, which is also the origin of the cylindrical coordinate system
the orientation o of the wall, which is the \(\hat{z}\) direction of the cylindrical coordinate system
a set of walls in the \((\hat{r},\theta,\hat{z})\) coordinate system, defined by a normal n and position p. Only axisymmetric objects can be defined, thus the \(\theta \) value of the normals has to be zero.

Example 1

Say you want to define a cylindrical wall as in the left image below. If you define the origin and orientation of the cylindrical coordinate system as *(0,0,0)* and *(0,0,1)*, respectively, then the cylinder is a rectangle in the cylindrical coordinate system. Thus, you need to intersect three walls, with normals and position as indicated in the right figure below.

A cylindric wall that repels particles

The following code defines such a cylinder:

AxisymmetricIntersectionOfWalls w;
w.setSpecies(species);
w.setPosition(Vec3D(0,0,0));
w.setOrientation(Vec3D(0,0,1));
//arguments of addObject are normal and position of the intersected walls
w.addObject(Vec3D(-1,0,0), Vec3D(1,0,0));  //Cylindric wall
w.addObject(Vec3D(0,0,1), Vec3D(.5,0,-1)); //Bottom wall
w.addObject(Vec3D(0,0,-1), Vec3D(.5,0,1)); //Top wall
wallHandler.copyAndAddObject(w);

Example 2

Note, one can also define a cylindric casing that can be filled with particles, see image below.

A cylindric casing that can be filled with particles

In this case, you don't have to intersect the walls; instead you need to create three separate walls. A sample code:

AxisymmetricIntersectionOfWalls w;
w.setSpecies(species);
w.setPosition(Vec3D(0,0,0));
w.setOrientation(Vec3D(0,0,1));
w.addObject(Vec3D(1,0,0), Vec3D(1,0,0));  //Cylindric wall
wallHandler.copyAndAddObject(w);
 
InfiniteWall w1;
w1.set(Vec3D(0,0,-1), Vec3D(0,0,-1)); //Bottom wall
wallHandler.copyAndAddObject(w1);
w1.set(Vec3D(0,0,1), Vec3D(0,0,1)); //Top wall
wallHandler.copyAndAddObject(w1);

Example 3

Say you want a cylindrical casing with an outflow at the base. In this case, you need to define three walls:

The outer cylinder of radius R, height H
The flat top wall
A bottom wall which is a outer cylinder of radius r<R, with a flat top wall at z=0

A cylindric casing that can be filled with particles

This can be done as follows:

double R = 2;
double H = 1;
double r = 1;
 
AxisymmetricIntersectionOfWalls w;
w.setSpecies(species);
w.setPosition(Vec3D(0,0,0));
w.setOrientation(Vec3D(0,0,1));
//normal and position of the outer shell in cylindrical coordinates
w.addObject(Vec3D(1,0,0), Vec3D(R,0,0));
wallHandler.copyAndAddObject(w);
 
InfiniteWall w1;
w1.set(Vec3D(0,0,1), Vec3D(0,0,H)); //Top wall
 
AxisymmetricIntersectionOfWalls w0;
w0.setSpecies(species);
w0.setPosition(Vec3D(0,0,0));
w0.setOrientation(Vec3D(0,0,1));
// bottom wall is an intersection of two walls, an outer cylinder of radius r and a flat top wall at z=0
w0.addObject(Vec3D(1,0,0), Vec3D(r,0,0));
w0.addObject(Vec3D(0,0,1), Vec3D(r,0,0));
wallHandler.copyAndAddObject(w0);

For a demonstration on how to use this class, see Flow through a 3D hourglass/silo.

Constructor & Destructor Documentation

◆ AxisymmetricIntersectionOfWalls() [1/3]

AxisymmetricIntersectionOfWalls::AxisymmetricIntersectionOfWalls ( )

Default constructor.

 {
     logger(DEBUG, "AxisymmetricIntersectionOfWalls() finished");
 }

References DEBUG, and logger.

Referenced by copy().

◆ AxisymmetricIntersectionOfWalls() [2/3]

AxisymmetricIntersectionOfWalls::AxisymmetricIntersectionOfWalls ( const AxisymmetricIntersectionOfWalls & other )

Copy constructor.

Parameters

[in] other The AxisymmetricIntersectionOfWalls that must be copied.

         : IntersectionOfWalls(other)
 {
     displayedSegments_ = other.displayedSegments_;
     logger(DEBUG, "AxisymmetricIntersectionOfWalls(const AxisymmetricIntersectionOfWalls &p) finished");
 }

References DEBUG, displayedSegments_, and logger.

◆ AxisymmetricIntersectionOfWalls() [3/3]

AxisymmetricIntersectionOfWalls::AxisymmetricIntersectionOfWalls	(	Vec3D	position,
		Vec3D	normal,
		std::vector< normalAndPosition >	walls,
		const ParticleSpecies *	species
	)

Constructor setting values.

         : IntersectionOfWalls(walls, species)
 {
     setPosition(position);
     setOrientationViaNormal(orientation);
 }

References BaseInteractable::setOrientationViaNormal(), and BaseInteractable::setPosition().

◆ ~AxisymmetricIntersectionOfWalls()

AxisymmetricIntersectionOfWalls::~AxisymmetricIntersectionOfWalls ( )

override

Destructor.

 {
     logger(DEBUG, "~AxisymmetricIntersectionOfWalls() finished.");
 }

References DEBUG, and logger.

Member Function Documentation

◆ convertLimits()

void AxisymmetricIntersectionOfWalls::convertLimits	(	Vec3D &	min,
		Vec3D &	max
	)		const

converts XYZ limits into RZ limits, to properly limit the VTK plotting area.

 {
     Quaternion q = getOrientation();
     Vec3D rMin = min - getPosition();
     q.rotateBack(rMin); //set min/max initial values to values of first corner point
     Vec3D rMax = max - getPosition();
     q.rotateBack(rMax); //set min/max initial values to values of first corner point
  
     Mdouble r = std::sqrt(std::max(rMax.Y * rMax.Y + rMax.Z * rMax.Z, rMin.Y * rMin.Y + rMin.Z * rMin.Z));
     max = Vec3D(r, 0.001, std::max(rMin.X,rMax.X));
     min = Vec3D(0, 0, std::min(rMin.X,rMax.X));
     //std::cout << "r=" << r << std::endl;
 }

References BaseInteractable::getOrientation(), BaseInteractable::getPosition(), max, min, Eigen::numext::q, UniformPSDSelfTest::r, sqrt(), Vec3D::X, Vec3D::Y, and Vec3D::Z.

Referenced by writeVTK().

◆ copy()

AxisymmetricIntersectionOfWalls * AxisymmetricIntersectionOfWalls::copy ( ) const

finalvirtual

Wall copy method. It calls the copy constructor of this Wall, useful for polymorphism.

Returns: pointer to a IntersectionOfWalls object allocated using new.

Implements BaseWall.

 {
     return new AxisymmetricIntersectionOfWalls(*this);
 }

References AxisymmetricIntersectionOfWalls().

Referenced by operator=().

◆ getDisplayedSegments()

const std::vector<Mdouble>& AxisymmetricIntersectionOfWalls::getDisplayedSegments ( ) const

inline

Gets the displayed segments.

See also: setDisplayedSegments for more information

178 { return displayedSegments_; }

References displayedSegments_.

◆ getDistanceAndNormal()

bool AxisymmetricIntersectionOfWalls::getDistanceAndNormal	(	const BaseParticle &	p,
		Mdouble &	distance,
		Vec3D &	normalReturn
	)		const

finalvirtual

Computes the distance from the wall for a given BaseParticle and returns true if there is a collision. If there is a collision, also return the normal vector.

First, the particle is translated by the vector position_, then the distance normal and tangential to the orientation is computed. This normal and tangential direction is interpreted as the x and z coordinate. With the particle shifted into the XZ plane, the distance and normal is computed, as if the AxisymmetricIntersectionOfWalls would be a simple IntersectionOfWalls. Finally, the object and the normal is rotated back to the original position.

See also AxisymmetricIntersectionOfWalls for details.

Todo:: check, maybe orientation has to be normalized differently for axisymmetric walls (or axis needs to be normalized)

Implements BaseWall.

 {
     //transform to axisymmetric coordinates
     //move the coordinate system to the axis origin, so pOrigin=(xhat,yhat,zhat)
     Vec3D pOrigin = p.getPosition() - getPosition();
     Vec3D axis = getOrientation().getAxis();
     Mdouble a = Vec3D::dot(pOrigin, axis);
     //Vec3D(r,a) is the projection into the radial-axial plane
     Vec3D radialDirection = pOrigin - a * axis;
     Mdouble r = radialDirection.getLength();
     Vec3D normal;
     //determine wall distance, normal and contact in axissymmetric coordinates
     //and transform from axisymmetric coordinates
     if (!IntersectionOfWalls::getDistanceAndNormal(Vec3D(r, 0, a), p.getWallInteractionRadius(this), distance, normal))
     {
         //if not in contact
         return false;
     }
     else
     {
         //if in contact
         if (r != 0)
             radialDirection /= r;
         else //in this case the tangential vector is irrelevant
             logger(WARN, "Warning: Particle % is exactly on the symmetry axis of wall %", p.getIndex(), getIndex());
         normalReturn = normal.Z * axis + normal.X * radialDirection;
         //logger.assert_debug(normalReturn.Y==0,"Error");
         return true;
     }
 }

References a, Vec3D::dot(), Quaternion::getAxis(), IntersectionOfWalls::getDistanceAndNormal(), BaseObject::getIndex(), Vec3D::getLength(), BaseInteractable::getOrientation(), BaseInteractable::getPosition(), logger, WallFunction::normal(), p, UniformPSDSelfTest::r, and WARN.

◆ getName()

std::string AxisymmetricIntersectionOfWalls::getName ( ) const

finalvirtual

Returns the name of the object.

Returns: The string "AxisymmetricIntersectionOfWalls".

Implements BaseObject.

 {
     return "AxisymmetricIntersectionOfWalls";
 }

◆ operator=()

AxisymmetricIntersectionOfWalls & AxisymmetricIntersectionOfWalls::operator= ( const AxisymmetricIntersectionOfWalls & other )

Copy assignment operator.

Parameters

[in] other The AxisymmetricIntersectionOfWalls that must be copied.

 {
     if (this == &other)
     {
         return *this;
     }
     else
     {
         return *(other.copy());
     }
 }

References copy().

◆ read()

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

finalvirtual

reads wall

Parameters

[in] is The input stream from which the AxisymmetricIntersectionOfWalls is read, usually a restart file.

Reimplemented from BaseInteractable.

 {
     IntersectionOfWalls::read(is);
  
     unsigned int nSegments = 0;
     helpers::readOptionalVariable(is, "displaySegments", nSegments);
     displayedSegments_.resize(nSegments);
     for (unsigned int i = 0; i < nSegments; i++)
     {
         is >> displayedSegments_[i];
     }
 }

References displayedSegments_, i, IntersectionOfWalls::read(), and helpers::readOptionalVariable().

◆ setAxis()

void AxisymmetricIntersectionOfWalls::setAxis ( Vec3D a )

◆ setDisplayedSegments()

void AxisymmetricIntersectionOfWalls::setDisplayedSegments ( const std::vector< Mdouble > & displayedSegments )

inline

Sets the displayed segments.

The array of displayed segments consists of 2*n values, where n is the number of segments. For each segment, the starting and ending points are stored in the array. Each value corresponds to a distance from the walls' position in the direction of the normal vector.

E.g. if two segments from z=-0.2 to -0.1 and from z=0.1 to 0.2 are displayed, the array would be displayedSegments = {-0.2, -0.1, 0.1, 0.2}.

     { 
         logger.assert_always(displayedSegments.size() % 2 == 0, "AxisymmetricIntersectionOfWalls::setDisplayedSegments: The vector displayedSegments must have a length divisible by 2.");
         displayedSegments_ = displayedSegments; 
     }

References displayedSegments_, and logger.

Referenced by HourGlass::setupInitialConditions(), and Tutorial11::setupInitialConditions().

◆ write()

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

finalvirtual

outputs wall

Parameters

[in] os The output stream where the AxisymmetricIntersectionOfWalls must be written to, usually a restart file.

Reimplemented from BaseInteractable.

 {
     IntersectionOfWalls::write(os);
  
     if (!displayedSegments_.empty())
     {
         os << " displaySegments " << displayedSegments_.size();
         for (auto segment : displayedSegments_)
         {
             os << " " << segment;
         }
     }
 }

References displayedSegments_, and IntersectionOfWalls::write().

◆ writeVTK() [1/2]

void AxisymmetricIntersectionOfWalls::writeVTK ( VTKContainer & vtk ) const

overridevirtual

adds extra information to the points and triangleStrips vectors needed to plot the wall in vtk format

Parameters

points	Coordinates of the vertices of the triangulated surfaces (in the VTK file this is called POINTS)
triangleStrips	Indices of three vertices forming one triangulated surface (in the VTK file this is called CELL)

Reimplemented from BaseWall.

 {
     // Determine the limits of the VTK plotting area
     Vec3D min = getHandler()->getDPMBase()->getMin();
     Vec3D max = getHandler()->getDPMBase()->getMax();
     convertLimits(min, max);
  
     if (displayedSegments_.empty())
     {
         writeVTK(vtk, min, max);
     }
     else
     {
         Vec3D segmentMin, segmentMax;
         for (unsigned int segmentIdx = 0; segmentIdx +1 < displayedSegments_.size(); segmentIdx += 2)
         {
             segmentMax = max;
             segmentMin = min;
             
             // Limit the VTK plotting area to the current segment
             segmentMin.Z = std::max(min.Z, displayedSegments_[segmentIdx]);
             segmentMax.Z = std::min(max.Z, displayedSegments_[segmentIdx + 1]);
  
             writeVTK(vtk, segmentMin, segmentMax);
         }        
     }
 }

References convertLimits(), displayedSegments_, BaseHandler< T >::getDPMBase(), BaseWall::getHandler(), DPMBase::getMax(), DPMBase::getMin(), max, min, and Vec3D::Z.

◆ writeVTK() [2/2]

void AxisymmetricIntersectionOfWalls::writeVTK	(	VTKContainer &	vtk,
		Vec3D	min,
		Vec3D	max
	)		const

Bug:: once the quaternions are implemented, we can orient these walls properly

 {
  
     for (auto wall = wallObjects_.begin(); wall != wallObjects_.end(); wall++)
     {
         //plot each of the intersecting walls
         std::vector<Vec3D> myPoints;
         
         //create the basic slice for the first wall using the InfiniteWall routine
         wall->createVTK(myPoints, min, max);
         
         //create intersections with the other walls, similar to the IntersectionOfWalls routine
         for (auto other = wallObjects_.begin(); other != wallObjects_.end(); other++)
         {
             if (other != wall)
             {
                 intersectVTK(myPoints, -other->getNormal(), other->getPosition());
             }
         }
         
         //only keep the y=0 values
         std::vector<Vec3D> rzVec;
         for (auto& p: myPoints)
         {
             if (p.Y == 0)
             {
                 rzVec.push_back(p);
             }
         }
         if (rzVec.empty())
             return;
         
         //create points on the unit circle
         unsigned nr = 180;
         struct XY
         {
             double X;
             double Y;
         };
         std::vector<XY> xyVec;
         for (unsigned ir = 0; ir < nr; ir++)
         {
             Mdouble angle = 2.0 * constants::pi * ir / nr;
             xyVec.push_back({cos(angle), sin(angle)});
         }
         
         //now create rings of points on the axisym. shape
         unsigned long nPoints = vtk.points.size();
         Vec3D p;
         //Vec3D o = getOrientation().getAxis();
         for (auto rz : rzVec)
         {
             for (auto xy : xyVec)
             {
                 p = Vec3D(rz.Z, rz.X * xy.X, rz.X * xy.Y);
                 getOrientation().rotate(p);
                 p += getPosition();
                 vtk.points.push_back(p);
             }
         }
         
         //finally create the connectivity matri to plot shell-like triangle strips.
         unsigned long nz = rzVec.size();
         for (unsigned iz = 0; iz < nz - 1; iz++)
         {
             std::vector<double> cell;
             cell.reserve(2 * nr + 2);
             for (unsigned ir = 0; ir < nr; ir++)
             {
                 cell.push_back(nPoints + ir + iz * nr);
                 cell.push_back(nPoints + ir + (iz + 1) * nr);
             }
             cell.push_back(nPoints + iz * nr);
             cell.push_back(nPoints + (iz + 1) * nr);
             vtk.triangleStrips.push_back(cell);
         }
     }
     
 }

References Jeffery_Solution::angle(), cos(), BaseInteractable::getOrientation(), BaseInteractable::getPosition(), BaseWall::intersectVTK(), max, min, Mesh_Parameters::nz, p, constants::pi, VTKContainer::points, Quaternion::rotate(), sin(), VTKContainer::triangleStrips, IntersectionOfWalls::wallObjects_, X, xy, XY, and Y.

Member Data Documentation

◆ displayedSegments_

std::vector<Mdouble> AxisymmetricIntersectionOfWalls::displayedSegments_

private

The starting end ending points of segments that are displayed in VTK.

This variable influence only the display of the wall in VTK, and has no effect on the physics of the wall.

Referenced by AxisymmetricIntersectionOfWalls(), getDisplayedSegments(), read(), setDisplayedSegments(), write(), and writeVTK().

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

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Example 1

Example 2

Example 3

Constructor & Destructor Documentation

◆ AxisymmetricIntersectionOfWalls() [1/3]

◆ AxisymmetricIntersectionOfWalls() [2/3]

◆ AxisymmetricIntersectionOfWalls() [3/3]

◆ ~AxisymmetricIntersectionOfWalls()

Member Function Documentation

◆ convertLimits()

◆ copy()

◆ getDisplayedSegments()

◆ getDistanceAndNormal()

◆ getName()

◆ operator=()

◆ read()

◆ setAxis()

◆ setDisplayedSegments()

◆ write()

◆ writeVTK() [1/2]

◆ writeVTK() [2/2]

Member Data Documentation

◆ displayedSegments_