Point cloud. More...

#include <gopointcloud.h>

Public Member Functions
	goPointCloud (goSize_t dim=2)

	goPointCloud (const goPointCloud< T > &)

	goPointCloud (const goList< goMath::Vector< T > > &)

	goPointCloud (const goMath::Matrix< T > &)

goPointCloud< T > &	operator= (const goPointCloud< T > &)

bool	operator!= (const goPointCloud< T > &other) const

bool	operator== (const goPointCloud< T > &other) const

goIndex_t	getPointCount () const
	Get number of points. More...

goList< goMath::Vector< T > > &	getPoints ()
	Get list of points. More...

const goList< goMath::Vector< T > > &	getPoints () const
	Get list of points. More...

virtual bool	setPoints (const goList< goMath::Vector< T > > &)
	Set the point list. More...

virtual bool	setPoints (const goMath::Matrix< T > &)
	Set points from the rows of a configuration matrix. More...

void	addPoint (const goMath::Vector< T > &p)
	Adds point to this cloud. More...

void	setChanged ()

goSize_t	getDim () const

bool	getCenterOfMass (goMath::Vector< T > &comRet) const
	Calculates the center of mass of the point cloud. More...

bool	translate (const goMath::Vector< T > &d)
	Translate all points. More...

bool	scale (T s)
	Scale all points. More...

void	getConfigurationMatrix (goMath::Matrix< T > &cmRet) const
	Get matrix containing the point coordinates. More...

void	getConfigurationVector (goMath::Vector< T > &cvRet) const
	Get configuration vector. More...

bool	getPrincipalAxes2D (goMath::Vectorf &a1, goMath::Vectorf &a2, const goArray< goFloat > *weights=0) const
	Calculate 2 principal axes. More...

bool	getPrincipalAxes (goMath::Matrix< T > &axes) const

bool	unitScale (goFloat factor=1.0f)

template<class matrixT >
bool	transform (const matrixT &m)

void	affineTransform (const goMath::Matrix< T > &m)

virtual bool	writeObjectFile (FILE *) const
	DO NOT USE Write the point cloud to a file. More...

virtual bool	readObjectFile (FILE *)
	DO NOT USE Read the point cloud from a file. More...

virtual bool	callObjectMethod (int methodID, goObjectMethodParameters *param=NULL)
	Call an object method by identifier. More...

Public Member Functions inherited from goObjectBase
	goObjectBase ()
	Constructor.

virtual	~goObjectBase ()
	Destructor. More...

const char *	getClassName () const
	Returns the class name. More...

int	getClassID () const

virtual goSize_t	memoryUsage () const
	Returns the size of this object or some measure of its memory consumption. More...

void	setObjectName (const char *name)
	Set name string for an object. More...

void	setObjectName (const goString &name)
	Set name string for an object. More...

const goString &	getObjectName () const
	Get the object name. More...

void	connectObject (goObjectBase *object)
	Connects an object to this object. More...

void	disconnectObject (const goObjectBase *object)
	Disconnects an object from this object.

virtual bool	queueObjectMethod (int methodID, goObjectMethodParameters *param=NULL, bool blocking=false)
	Enqueue a method call to an internal list of methods. More...

bool	callQueuedMethods ()
	Call all queued methods. More...

Static Public Member Functions
static bool	getCenterOfMass (const goFixedArray< goMath::Vector< T > > &, goMath::Vector< T > &comRet)

static bool	getPrincipalAxes (const goFixedArray< goMath::Vector< T > > &, goMath::Matrix< T > &axes)

static bool	readASCII (const char *filename, goSize_t dimension, goList< goMath::Vector< T > > &pointList)

Protected Member Functions
virtual void	receiveObjectMessage (const goObjectMessage &message)
	Receive a message. More...

Protected Member Functions inherited from goObjectBase
void	setClassID (int id)
	Sets the class name.

void	printClassMessage (const char *msg)
	Sets the class name. More...

void	printClassMessage (goString &msg)
	Prints an informational message to the calling console. More...

void	sendObjectMessage (int messageID, void *data=NULL)
	Sends a message to all connected objects.

void	sendObjectMessage (goObjectBase object, int messageID, void data=NULL)
	Sends a message to a specific object.

Detailed Description

template<class T>
class goPointCloud< T >

Point cloud.

Points are represented using goMath::Vector<T> objects.

Note: The only currently supported template parameters are goFloat and goDouble.

Todo:: Add function to create a configuration matrix goMath::Matrix (N,getDim()) and/or a configuration vector from a point cloud.

Member Function Documentation

◆ addPoint()

template<class T >

void goPointCloud< T >::addPoint ( const goMath::Vector< T > & p )

Adds point to this cloud.

Parameters

p	Point to be added.

◆ callObjectMethod()

template<class T >

bool goPointCloud< T >::callObjectMethod	(	int	methodID,
		goObjectMethodParameters *	param = `NULL`
	)

virtual

Call an object method by identifier.

See the file goobjectmessage.h for messages and add messages there if needed. External applications building on this class should use identifiers starting with GO_OBJECTMETHOD_USER.

Note: Reimplement this in sub-classes as needed. The method should return true if the method call was successful. Values can also be returned through the goObjectMethodParameters* param.

Parameters

methodID	ID of the method. See goobjectmethod.h
param	Pointer to parameters for the method, if any.

Returns: True if successful, false otherwise.

Reimplemented from goObjectBase.

Reimplemented in goCurve< T >.

◆ getCenterOfMass()

template<class T >

bool goPointCloud< T >::getCenterOfMass ( goMath::Vector< T > & comRet ) const

Calculates the center of mass of the point cloud.

No weights are used, all points are weighted with the factor 1.

Parameters

comRet Center of mass.

Returns: True if successful, false otherwise.

◆ getConfigurationMatrix()

template<class T >

void goPointCloud< T >::getConfigurationMatrix ( goMath::Matrix< T > & cmRet ) const

Get matrix containing the point coordinates.

Fill a matrix $M \in R^{k\times n}$ , where with the k points of dimension n from this point cloud.

Parameters

cmRet Configuration matrix. Resized if necessary.

◆ getConfigurationVector()

template<class T >

void goPointCloud< T >::getConfigurationVector ( goMath::Vector< T > & cvRet ) const

Get configuration vector.

Get a vector $v = (p_0,\dots,p_{k-1})^\top \in R^{k \cdot n}$ containing the coordinates of all k points p of dimension n in this point cloud concatenated.

Parameters

cvRet Configuration vector. Resized if necessary.

◆ getPointCount()

template<class T >

goIndex_t goPointCloud< T >::getPointCount ( ) const

Get number of points.

Returns: Number of points in the point cloud.

◆ getPoints() [1/2]

template<class T >

goList< goMath::Vector< T > > & goPointCloud< T >::getPoints ( )

Get list of points.

Returns: Reference to the list of pointT objects constituting the point cloud.

◆ getPoints() [2/2]

template<class T >

const goList< goMath::Vector< T > > & goPointCloud< T >::getPoints ( ) const

Get list of points.

Returns: Reference to the list of goPointf objects constituting the point cloud.

◆ getPrincipalAxes2D()

template<class T >

bool goPointCloud< T >::getPrincipalAxes2D	(	goMath::Vectorf &	a1,
		goMath::Vectorf &	a2,
		const goArray< goFloat > *	weights = `0`
	)		const

Calculate 2 principal axes.

Works only with x and y coordinates of the points.

Points must be moved to their center of mass prior to this method.

Parameters

a1	Contains the major principal axis (the one with the higher eigenvalue).
a2	Contains the minor principal axis.

Returns: True if successful, false otherwise.

◆ readObjectFile()

template<class T >

bool goPointCloud< T >::readObjectFile ( FILE * f )

virtual

DO NOT USE Read the point cloud from a file.

Reads all 4 coordinates and the point value from the file.

Parameters

f	Valid, open file.

Returns: True if successful, false otherwise.

Reimplemented from goObjectBase.

Reimplemented in goCurve< T >.

◆ receiveObjectMessage()

template<class T >

void goPointCloud< T >::receiveObjectMessage ( const goObjectMessage & message )

protectedvirtual

Receive a message.

This function gets called each time another object "sends" a message to this object. Reimplement this in order to allow derived classes to react to messages.

Reimplemented from goObjectBase.

Reimplemented in goCurve< T >.

◆ scale()

template<class T >

bool goPointCloud< T >::scale ( T s )

Scale all points.

Parameters

s	Scale factor.

Returns: True if successful, false otherwise.

◆ setPoints() [1/2]

template<class T >

bool goPointCloud< T >::setPoints ( const goList< goMath::Vector< T > > & points )

virtual

Set the point list.

Parameters

points List of points. This list will be deep-copied into the internal list.

Reimplemented in goCurve< T >.

◆ setPoints() [2/2]

template<class T >

bool goPointCloud< T >::setPoints ( const goMath::Matrix< T > & m )

virtual

Set points from the rows of a configuration matrix.

Parameters

m	Matrix, each row containing one point.

Returns: True if successful, false otherwise.

Reimplemented in goCurve< T >.

◆ translate()

template<class T >

bool goPointCloud< T >::translate ( const goMath::Vector< T > & d )

Translate all points.

Parameters

d	Translation.

Returns: True if successful, false otherwise.

◆ writeObjectFile()

template<class T >

bool goPointCloud< T >::writeObjectFile ( FILE * f ) const

virtual

DO NOT USE Write the point cloud to a file.

Writes all 4 coordinates and the point value to the file.

Parameters

f	Valid, open file.

Returns: True if successful, false otherwise.

Reimplemented from goObjectBase.

Reimplemented in goCurve< T >.

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

gopointcloud.h
gopointcloud.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

template<class T> class goPointCloud< T >

Member Function Documentation

◆ addPoint()

◆ callObjectMethod()

◆ getCenterOfMass()

◆ getConfigurationMatrix()

◆ getConfigurationVector()

◆ getPointCount()

◆ getPoints() [1/2]

◆ getPoints() [2/2]

◆ getPrincipalAxes2D()

◆ readObjectFile()

◆ receiveObjectMessage()

◆ scale()

◆ setPoints() [1/2]

◆ setPoints() [2/2]

◆ translate()

◆ writeObjectFile()

template<class T>
class goPointCloud< T >