The SKIRT project
advanced radiative transfer for astrophysics
OffsetVectorFieldDecorator Class Reference

#include <OffsetVectorFieldDecorator.hpp>

Inheritance diagram for OffsetVectorFieldDecorator:

Public Member Functions

int dimension () const override
double offsetX () const
double offsetY () const
double offsetZ () const
Vec vector (Position bfr) const override
VectorFieldvectorField () const
Public Member Functions inherited from SimulationItem
template<class T>
T * find (bool setup=true) const
template<class T>
T * interface (int levels=-999999, bool setup=true) const
virtual string itemName () const
void setup ()
string typeAndName () const
Public Member Functions inherited from Item
 Item (const Item &)=delete
virtual ~Item ()
void addChild (Item *child)
const vector< Item * > & children () const
virtual void clearItemListProperty (const PropertyDef *property)
void destroyChild (Item *child)
virtual bool getBoolProperty (const PropertyDef *property) const
virtual vector< double > getDoubleListProperty (const PropertyDef *property) const
virtual double getDoubleProperty (const PropertyDef *property) const
virtual string getEnumProperty (const PropertyDef *property) const
virtual int getIntProperty (const PropertyDef *property) const
virtual vector< Item * > getItemListProperty (const PropertyDef *property) const
virtual ItemgetItemProperty (const PropertyDef *property) const
virtual string getStringProperty (const PropertyDef *property) const
int getUtilityProperty (string name) const
virtual void insertIntoItemListProperty (const PropertyDef *property, int index, Item *item)
Itemoperator= (const Item &)=delete
Itemparent () const
virtual void removeFromItemListProperty (const PropertyDef *property, int index)
virtual void setBoolProperty (const PropertyDef *property, bool value)
virtual void setDoubleListProperty (const PropertyDef *property, vector< double > value)
virtual void setDoubleProperty (const PropertyDef *property, double value)
virtual void setEnumProperty (const PropertyDef *property, string value)
virtual void setIntProperty (const PropertyDef *property, int value)
virtual void setItemProperty (const PropertyDef *property, Item *item)
virtual void setStringProperty (const PropertyDef *property, string value)
void setUtilityProperty (string name, int value)
virtual string type () const

Protected Member Functions

 OffsetVectorFieldDecorator ()
Protected Member Functions inherited from VectorField
 VectorField ()
Protected Member Functions inherited from SimulationItem
 SimulationItem ()
virtual bool offersInterface (const std::type_info &interfaceTypeInfo) const
virtual void setupSelfAfter ()
virtual void setupSelfBefore ()
Protected Member Functions inherited from Item
 Item ()

Private Types

using BaseType
using ItemType

Private Attributes

double _offsetX
double _offsetY
double _offsetZ
VectorField_vectorField

Friends

class ItemRegistry

Detailed Description

The OffsetVectorFieldDecorator class is a decorator that adds an arbitrary offset to any vector field. The properties of an OffsetVectorFieldDecorator object include (1) a reference to the VectorField object being decorated and (2) three offsets in the x, y, and z directions. The resulting vector field is identical to the vector field being decorated, except that it is shifted over the specified offset. The vector field implemented by an OffsetVectorFieldDecorator object is 2D (axial symmetry) or 3D (no symmetries) depending on the symmetries of the vector field being decorated and on the specified offset. Specifically, it is 2D if the vector field being decorated is 1D or 2D and the offsets in the x and y directions are both zero. It is 3D if the vector field being decorated is 3D, or if at least one of the offsets in the x and y directions is nonzero.

Constructor & Destructor Documentation

◆ OffsetVectorFieldDecorator()

OffsetVectorFieldDecorator::OffsetVectorFieldDecorator ( )
inlineprotected

Default constructor for concrete Item subclass OffsetVectorFieldDecorator: "a decorator that adds an offset to any vector field".

Member Function Documentation

◆ dimension()

int OffsetVectorFieldDecorator::dimension ( ) const
overridevirtual

This function returns the dimension of the vector field. It is 2 if the dimension of the vector field being decorated is 1 or 2 and the offsets in the x and y directions are both zero. It is 3 if the dimension of the vector field being decorated is 3, or if at least one of the offsets in the x and y directions is nonzero.

Implements VectorField.

◆ offsetX()

double OffsetVectorFieldDecorator::offsetX ( ) const
inline

This function returns the value of the discoverable double property offsetX: "the offset in the x direction".

This property represents a physical quantity of type "length".

The default value for this property is given by the conditional value expression "0".

When a value is entered for this property, the names provided by the conditional value expression "offsetX:Dimension3" are inserted into the name sets used for evaluating Boolean expressions.

◆ offsetY()

double OffsetVectorFieldDecorator::offsetY ( ) const
inline

This function returns the value of the discoverable double property offsetY: "the offset in the y direction".

This property represents a physical quantity of type "length".

The default value for this property is given by the conditional value expression "0".

When a value is entered for this property, the names provided by the conditional value expression "offsetY:Dimension3" are inserted into the name sets used for evaluating Boolean expressions.

◆ offsetZ()

double OffsetVectorFieldDecorator::offsetZ ( ) const
inline

This function returns the value of the discoverable double property offsetZ: "the offset in the z direction".

This property represents a physical quantity of type "length".

The default value for this property is given by the conditional value expression "0".

When a value is entered for this property, the names provided by the conditional value expression "offsetZ:Dimension2" are inserted into the name sets used for evaluating Boolean expressions.

◆ vector()

Vec OffsetVectorFieldDecorator::vector ( Position bfr) const
overridevirtual

This function returns the value of the vector field at the position \({\bf{r}}\). It calls the vector() function for the vector field being decorated with the translated position \({\bf{r}}-{\bf{r}_\text{offset}}\).

Implements VectorField.

◆ vectorField()

VectorField * OffsetVectorFieldDecorator::vectorField ( ) const
inline

This function returns the value of the discoverable item property vectorField: "the vector field to be offset".


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