class GradientInrimageInformation : public RangeInformation

a class that store all information necessary for computing an external force based on the gradient

Inheritance:

Public Classes

enum	OrientationConstraint test gradient orientation constraint NONE accept all voxels ALONG_GRADIENT accept only voxels whose gradient orientation match line orientation ALONG_OPPOSITE_GRADIENT accept only voxels whose gradient orientation match opposite line orientation

Public Fields

static const TclString

informationName name stored in the Range Information

Public Methods

double	getMaxDistance (void) const get the maximum range distance
void	setMaxDistance (double r) set the maximum range distance
double	getThreshold (void) const get the gradient threshold
void	setThreshold (double threshold) set the gradient threshold
OrientationConstraint	getOrientationConstraint (void) const get the gradient constraint
void	setOrientationConstraint (OrientationConstraint constraint) set the gradient constraint
bool	getIntensityConstraint (void) const returns a boolean indicating if voxel intensity should be considered
void	setIntensityConstraint (const bool _useIntensity) set the intensity constraint
double	getMinimumIntensity (void) const returns the minimum intensity value for accepting a voxel as edge voxel
double	getMaximumIntensity (void) const returns the maximum intensity value for accepting a voxel as edge voxel
void	setMinimumIntensity (const double _minimumIntensity) sets the minimum intensity value for accepting a voxel as edge voxel
void	setMaximumIntensity (const double _maximumIntensity) sets the maximum intensity value for accepting a voxel as edge voxel
double	getStopCondition (void) const returns stop condition (true means stop at first gradient voxel)
void	setStopCondition (bool stop) set stop condition (true means stop at first gradient voxel)
static RangeInformation*	readGradientInformation (GFInput &input) create a gradient information Object from a file
virtual RangeInformation*	duplicate () create a copy of this gradient information object
virtual void	writeInFile (GFOutput &output) write in a file the data stored in a gradient information object

Public

	constructor GradientInrimageInformation (double max = 10.0, double gradientThreshold = 0.0, OrientationConstraint gradientConstraint = NONE, bool stopAtFirst = false, bool useIntensity = false, double minIntensity = 0.0, double maxIntensity = 255.0) builds a data structure storing the gradient threshold, its orientation constraint and its intensity range
	destructor virtual ~GradientInrimageInformation () destroys the objwct

Private Fields

double	range the half-distance along which the highest gradient voxel is searched
double	gradientThreshold the gradient norm value above which a voxel is considered for test
OrientationConstraint	gradientConstraint if there is a constraint on the voxel gradient orientation
bool	stopAtFirst should the scan-line stop on highest gradient vertex or first one higher than threshold?
bool	useIntensity should the intensity be used for looking for the optimal voxel
double	minimumIntensity the minimum Intensity value when checking if a voxel should be retained
double	maximumIntensity the maximum Intensity value when checking if a voxel should be retained

static const TclString informationName

name stored in the Range Information

enum OrientationConstraint

test gradient orientation constraint

NONE

accept all voxels

ALONG_GRADIENT

accept only voxels whose gradient orientation match line orientation

ALONG_OPPOSITE_GRADIENT

accept only voxels whose gradient orientation match opposite line orientation

double range

the half-distance along which the highest gradient voxel is searched

double gradientThreshold

the gradient norm value above which a voxel is considered for test

OrientationConstraint gradientConstraint

if there is a constraint on the voxel gradient orientation

bool stopAtFirst

should the scan-line stop on highest gradient vertex or first one higher than threshold?

bool useIntensity

should the intensity be used for looking for the optimal voxel

double minimumIntensity

the minimum Intensity value when checking if a voxel should be retained

double maximumIntensity

the maximum Intensity value when checking if a voxel should be retained

constructor

GradientInrimageInformation(double max = 10.0, double gradientThreshold = 0.0, OrientationConstraint gradientConstraint = NONE, bool stopAtFirst = false, bool useIntensity = false, double minIntensity = 0.0, double maxIntensity = 255.0)

builds a data structure storing the gradient threshold, its orientation constraint and its intensity range

Parameters:

max - the half-distance used for the search algorithm
gradientThreshold - the threshold on the gradient norm value
gradientConstraint - the constraint on the gradient direction,
stopAtFirst - should the scan-line stop on highest gradient vertex or first one higher than threshold?
useIntensity - if intensity should be considered when finding the best voxel
minIntensity - the minimum intensity of the intensity range
maxIntensity - the maximum intensity of the intensity range

destructor

virtual ~GradientInrimageInformation()

destroys the objwct

double getMaxDistance(void) const

get the maximum range distance

void setMaxDistance(double r)

set the maximum range distance

double getThreshold(void) const

get the gradient threshold

void setThreshold(double threshold)

set the gradient threshold

OrientationConstraint getOrientationConstraint(void) const

get the gradient constraint

void setOrientationConstraint(OrientationConstraint constraint)

set the gradient constraint

bool getIntensityConstraint(void) const

returns a boolean indicating if voxel intensity should be considered

void setIntensityConstraint(const bool _useIntensity)

set the intensity constraint

double getMinimumIntensity(void) const

returns the minimum intensity value for accepting a voxel as edge voxel

double getMaximumIntensity(void) const

returns the maximum intensity value for accepting a voxel as edge voxel

void setMinimumIntensity(const double _minimumIntensity)

sets the minimum intensity value for accepting a voxel as edge voxel

void setMaximumIntensity(const double _maximumIntensity)

sets the maximum intensity value for accepting a voxel as edge voxel

double getStopCondition(void) const

returns stop condition (true means stop at first gradient voxel)

void setStopCondition(bool stop)

set stop condition (true means stop at first gradient voxel)

static RangeInformation* readGradientInformation(GFInput &input)

create a gradient information Object from a file

virtual RangeInformation* duplicate()

create a copy of this gradient information object. This is used to apply the same algorithm to all vertices of a mesh

virtual void writeInFile(GFOutput &output)

write in a file the data stored in a gradient information object

Parameters:

output - a pointer on a file

alphabetic index hierarchy of classes

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(c)opyright by Malte Zöckler, Roland Wunderling
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