Package net.algart.matrices.scanning

Enum Class Boundary2DSimpleMeasurer.ObjectParameter

java.lang.Object

java.lang.Enum<Boundary2DSimpleMeasurer.ObjectParameter>

net.algart.matrices.scanning.Boundary2DSimpleMeasurer.ObjectParameter

All Implemented Interfaces:

Serializable, Comparable<Boundary2DSimpleMeasurer.ObjectParameter>, Constable

Enclosing class:

Boundary2DSimpleMeasurer

public static enum Boundary2DSimpleMeasurer.ObjectParameter
extends Enum<Boundary2DSimpleMeasurer.ObjectParameter>

The class describing what parameters of the connected object boundary should be measured by Boundary2DSimpleMeasurer class.

This class is immutable and thread-safe: there are no ways to modify settings of the created instance.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
AREA	Instructs Boundary2DSimpleMeasurer to measure the oriented area inside the contour, following along the scanned boundary.
CENTROID	Instructs Boundary2DSimpleMeasurer to find the centroid (center of mass) of the figure, lying inside the contour, following along the scanned boundary.
COORD_RANGES	Instructs Boundary2DSimpleMeasurer to measure the maximums and minimums of x, y, x+y, x−y values while scanning the boundary, where x and y are coordinates of all points at the contour, following along the scanned boundary.
PERIMETER	Instructs Boundary2DSimpleMeasurer to measure the perimeter of the object: the length of the contour, following along the scanned boundary.

Method Summary

Modifier and Type	Method	Description
static Boundary2DSimpleMeasurer.ObjectParameter	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Boundary2DSimpleMeasurer.ObjectParameter[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

AREA

public static final Boundary2DSimpleMeasurer.ObjectParameter AREA

Instructs Boundary2DSimpleMeasurer to measure the oriented area inside the contour, following along the scanned boundary. See definition of the "boundary" term in comments to Boundary2DScanner class and the list of possible contour types in ContourLineType class.

See Also:

• Boundary2DSimpleMeasurer.area()

PERIMETER

public static final Boundary2DSimpleMeasurer.ObjectParameter PERIMETER

Instructs Boundary2DSimpleMeasurer to measure the perimeter of the object: the length of the contour, following along the scanned boundary. See definition of the "boundary" term in comments to Boundary2DScanner class and the list of possible contour types in ContourLineType class.

See Also:

• Boundary2DSimpleMeasurer.perimeter()

COORD_RANGES

public static final Boundary2DSimpleMeasurer.ObjectParameter COORD_RANGES

Instructs Boundary2DSimpleMeasurer to measure the maximums and minimums of x, y, x+y, x−y values while scanning the boundary, where x and y are coordinates of all points at the contour, following along the scanned boundary. See definition of the "boundary" term in comments to Boundary2DScanner class and the list of possible contour types in ContourLineType class.

See Also:

• Boundary2DSimpleMeasurer.minX()
• Boundary2DSimpleMeasurer.maxX()
• Boundary2DSimpleMeasurer.minY()
• Boundary2DSimpleMeasurer.maxY()
• Boundary2DSimpleMeasurer.minXPlusY()
• Boundary2DSimpleMeasurer.maxXPlusY()
• Boundary2DSimpleMeasurer.minXMinusY()
• Boundary2DSimpleMeasurer.maxXMinusY()

CENTROID

public static final Boundary2DSimpleMeasurer.ObjectParameter CENTROID

Instructs Boundary2DSimpleMeasurer to find the centroid (center of mass) of the figure, lying inside the contour, following along the scanned boundary. See definition of the "boundary" term in comments to Boundary2DScanner class and the list of possible contour types in ContourLineType class.

Note that the centroid may be undefined for some styles of contours, if the area of the figure inside the contour is zero. For example, it is possible for "thin" 1-pixel "lines" in a case of ContourLineType.PIXEL_CENTERS_POLYLINE. In this case, Boundary2DSimpleMeasurer.centroidX() and Boundary2DSimpleMeasurer.centroidY() methods return Double.NaN.

See Also:

• Boundary2DSimpleMeasurer.centroidX()
• Boundary2DSimpleMeasurer.centroidY()

Method Details

values

public static Boundary2DSimpleMeasurer.ObjectParameter[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static Boundary2DSimpleMeasurer.ObjectParameter valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null