Package net.algart.matrices.scanning

Class Boundary2DProjectionMeasurer

java.lang.Object

net.algart.matrices.scanning.Boundary2DScanner

net.algart.matrices.scanning.Boundary2DWrapper

net.algart.matrices.scanning.Boundary2DProjectionMeasurer

public abstract class Boundary2DProjectionMeasurer
extends Boundary2DWrapper

Nested Class Summary

Nested classes/interfaces inherited from class net.algart.matrices.scanning.Boundary2DScanner

Boundary2DScanner.Side, Boundary2DScanner.Step

Field Summary

Fields inherited from class net.algart.matrices.scanning.Boundary2DWrapper

parent

Method Summary

Modifier and Type	Method	Description
double	area()	Returns the oriented area inside the contour, following along the scanned boundary.
ContourLineType	contourLineType()	Returns the contour line style, used for measuring by this instance.
double	directionAngleInRadians(int directionIndex)
static Boundary2DProjectionMeasurer	getInstance(Boundary2DScanner parent, ContourLineType contourLineType, double startAngleInRadians, int numberOfDirections)
int	indexOfMaxProjectionLength()
int	indexOfMinCircumscribedRhombus(int stepBetweenDirections)
int	indexOfMinProjectionLength()
double	maxProjectionLength()
double	meanProjectionLength()
double	minCircumscribedRhombus(int stepBetweenDirections)
double	minProjectionLength()
int	numberOfDirections()
double	perimeter()	Returns the total length of the contour, following along the scanned boundary: an estimated perimeter of the measured object, "drawn" at the bit matrix.
abstract double	projectionLength(int directionIndex)
abstract double	projectionMax(int directionIndex)
abstract double	projectionMin(int directionIndex)
double	startAngleInRadians()
String	toString()	Returns a brief string description of this object.

Methods inherited from class net.algart.matrices.scanning.Boundary2DWrapper

atMatrixBoundary, boundaryFinished, connectivityType, coordinatesChanged, currentIndexInArray, diagonalStepCount, get, goTo, isAllBoundariesScanner, isInitialized, isMainBoundariesScanner, isMovedAlongBoundary, isSingleBoundaryScanner, lastStep, nestingLevel, next, nextBoundary, orientedArea, parent, resetCounters, rotationStepCount, side, stepCount, x, y

Methods inherited from class net.algart.matrices.scanning.Boundary2DScanner

area, checkInterruption, dimX, dimY, fillHoles, fillHoles, getAllBoundariesScanner, getMainBoundariesScanner, getSingleBoundaryScanner, goToSamePosition, isInternalBoundary, matrix, perimeter, scanBoundary, scanBoundary, straightStepCount, updateProgress

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

getInstance

public static Boundary2DProjectionMeasurer getInstance(Boundary2DScanner parent,
 ContourLineType contourLineType,
 double startAngleInRadians,
 int numberOfDirections)

contourLineType

public ContourLineType contourLineType()

Returns the contour line style, used for measuring by this instance. The returned reference is identical to the corresponding argument of getInstance(Boundary2DScanner, ContourLineType, double, int) method, used for creating this instance.

Returns:

the contour line style, used for measuring by this instance.

startAngleInRadians

public double startAngleInRadians()

numberOfDirections

public int numberOfDirections()

directionAngleInRadians

public double directionAngleInRadians(int directionIndex)

area

public double area()

Returns the oriented area inside the contour, following along the scanned boundary. "Oriented" means that the result is equal to the area of the figure inside this contour, Equivalent to area(thisObject.contourLineType()).

Returns:

the oriented area inside the scanned contour.

perimeter

public double perimeter()

Returns the total length of the contour, following along the scanned boundary: an estimated perimeter of the measured object, "drawn" at the bit matrix. Equivalent to perimeter(thisObject.contourLineType()).

Returns:

the length of the contour line, following along the scanned boundary.

projectionMin

public abstract double projectionMin(int directionIndex)

projectionMax

public abstract double projectionMax(int directionIndex)

projectionLength

public abstract double projectionLength(int directionIndex)

meanProjectionLength

public double meanProjectionLength()

indexOfMinProjectionLength

public int indexOfMinProjectionLength()

indexOfMaxProjectionLength

public int indexOfMaxProjectionLength()

indexOfMinCircumscribedRhombus

public int indexOfMinCircumscribedRhombus(int stepBetweenDirections)

minProjectionLength

public double minProjectionLength()

maxProjectionLength

public double maxProjectionLength()

minCircumscribedRhombus

public double minCircumscribedRhombus(int stepBetweenDirections)

toString

public String toString()

Description copied from class: Boundary2DScanner

Returns a brief string description of this object.

The result of this method may depend on implementation.

Overrides:

toString in class Boundary2DScanner

Returns:

a brief string description of this object.