afl::Boundary_4 Class Reference

#include <boundary_4.h>

Inheritance diagram for afl::Boundary_4:

List of all members.

Public Member Functions
	Boundary_4 (const Point &from, const Point &to, bool colour)
	Boundary_4 (const Field *field, bool colour)
	Boundary_4 (const Boundary_4 &toCopy)
virtual	~Boundary_4 ()
virtual troolean	locate (const Point &p) const
virtual data_t	intersect (const Point &p, const Point &v) const
virtual void	addSegment (const Point &from, const Point &to)
virtual void	addSegment (const Field *field)
virtual void	toXML (std::ostream &doc, const std::string &componentsDir, const std::string &baseURI) const
virtual Boundary_4 *	clone ()
virtual Point	findNearest (const Point &p) const
virtual Value	getNormal (const Point &p) const
virtual Point	getBoundingBoxMin () const
virtual Point	getBoundingBoxMax () const
Protected Member Functions
	Boundary_4 ()
virtual int	whereIs (const Point &p) const
virtual bool	intersectSegment (const Point &from, const Point &to) const
Protected Attributes
bool	_colour
std::list< Boundary_4 >	_segments
Boundary_4 *	_impl

---

Detailed Description

Class Boundary_4D A 4D boundary proxy. The real object is either a SimpleBoundary_4 (a rectangular area) or a FieldBoundary_4 (a 3D field of 4D vectors)

---

Constructor & Destructor Documentation

afl::Boundary_4::Boundary_4 (  const Point &  from, const Point &  to, bool  colour )

constructs a proxy to a simple boundary Parameters: from  one corner of the simple boundary to  the other corner of the simple boundary colour  red for island or black for hole

afl::Boundary_4::Boundary_4 (  const Field *  field, bool  colour )

constructs a proxy to a field boundary Parameters: field  the field of the implementation colour  red for island or black for hole

afl::Boundary_4::Boundary_4 (  const Boundary_4 &  toCopy  )

copy constructor Parameters: toCopy  the boundary_4 to copy

virtual afl::Boundary_4::~Boundary_4 (   )  [virtual]

desructor is virtual

afl::Boundary_4::Boundary_4 (   )  [protected]

empty constructor for children

---

Member Function Documentation

virtual void afl::Boundary_4::addSegment (  const Field *  field  )  [virtual]

adds a segment of the opposite colour. Parameters: field  a field of the appropriate dimensions to define the new boundary section Exceptions: ddf::GeometryException  is thrown if the new segment has no hyper-volume ddf::InvalidArgumentException  is thrown if the new segment overlaps an existing segment or if the new segment is not of the right dimension/value. Reimplemented in afl::SimpleBoundary_4.

virtual void afl::Boundary_4::addSegment (  const Point &  from, const Point &  to )  [virtual]

adds a segment of the opposite colour. Parameters: from  one hyper corner of the new rectangular segment to  the opposite hyper-corner of the new rectangular segment Exceptions: ddf::GeometryException  is thrown if the new segment has no hyper-volume ddf::InvalidArgumentException  is thrown if the new segment overlaps an existing segment or if the new segment is not of the right dimension. Reimplemented in afl::SimpleBoundary_4.

virtual Boundary_4* afl::Boundary_4::clone (   )  [virtual]

Returns: a newly created and exact copy of the object Reimplemented in afl::SimpleBoundary_4.

virtual Point afl::Boundary_4::findNearest (  const Point &  p  )  const [virtual]

finds the nearest point on the boundary to a point. Parameters: p  the point to find the nearest point of Returns: the nearest point to p that is on the boundary. If p is on the boundary, then p itself is returned. Reimplemented in afl::SimpleBoundary_4.

virtual Point afl::Boundary_4::getBoundingBoxMax (   )  const [virtual]

Returns: the largest point in the boundary. In a simple boundary, this is a point with the largest value of X, Y, Z and T. In a field boundary this is the point that corresponds to field's boundary's largest point Reimplemented in afl::SimpleBoundary_4.

virtual Point afl::Boundary_4::getBoundingBoxMin (   )  const [virtual]

Returns: the smallest point in the boundary. In a simple boundary, this is a point with the smallest value of X, Y, Z and T. In a field boundary this is the point that corresponds to field's boundary's smallest point Reimplemented in afl::SimpleBoundary_4.

virtual Value afl::Boundary_4::getNormal (  const Point &  p  )  const [virtual]

finds the vector normal to the boundary at a point p on the boundary Parameters: p  the point on the boundary to find the normal to. Returns: a vector (i.e. 1 column value) that returns the normal to the boundary at p Exceptions: ddf::InvalidArgumentException  if p is not on the boundary Reimplemented in afl::SimpleBoundary_4.

virtual data_t afl::Boundary_4::intersect (  const Point &  p, const Point &  v )  const [virtual]

Finds the distance from a point to the boundary in the direction of a vector. Parameters: p  The point that is being queried. v  the vector to find an intersection in the direction of Returns: the distance from the point along the vector that the boundary intersects (or the shortest distance if there are multiple intersections) of the length of the vector if there is no intersection. If p is on the boundary then the return value is 0. if p is outside the domain the distance is still positive. Reimplemented in afl::SimpleBoundary_4.

virtual bool afl::Boundary_4::intersectSegment (  const Point &  from, const Point &  to )  const [protected, virtual]

Parameters: from  one corner of a segment to intesect with this one to  the other corner of a segment to intersect with this one Returns: true if the segment defines with from and to overlap this segment but is not entirely contained in this segmetn. I.e. either the boudary is crossed or the segment contains this segment. Reimplemented in afl::SimpleBoundary_4.

virtual troolean afl::Boundary_4::locate (  const Point &  p  )  const [virtual]

Parameters: p  The point to locate Returns: `outside' if the point is outside the domain, `boundary' if Reimplemented in afl::SimpleBoundary_4.

virtual void afl::Boundary_4::toXML (  std::ostream &  doc, const std::string &  componentsDir, const std::string &  baseURI )  const [virtual]

represents the segment as an XML string that will be put onto doc Parameters: doc  the stream to put the XML string on componentsDir  the path of a directory to store component files in baseURI  a URI that refers to the directory in componentsDir Reimplemented in afl::SimpleBoundary_4.

virtual int afl::Boundary_4::whereIs (  const Point &  p  )  const [protected, virtual]

Returns: -1 if the point is outside the domain, -2 if the point is inside a hole -3 if the point is before the segment, 0 if the point is on the boundary, or 1 if the point is inside the domain. Parameters: p  The point to query Reimplemented in afl::SimpleBoundary_4.

---

Member Data Documentation

bool afl::Boundary_4::_colour [protected]

red (island) or black (hole)

Boundary_4* afl::Boundary_4::_impl [protected]

the implementation of this proxy

std::list<Boundary_4> afl::Boundary_4::_segments [protected]

the sub segments within this segment

---

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

• boundary_4.h

---