com.itextpdf.kernel.geom

Class Subpath

java.lang.Object

com.itextpdf.kernel.geom.Subpath

All Implemented Interfaces:

Serializable

public class Subpath
extends Object
implements Serializable

As subpath is a part of a path comprising a sequence of connected segments.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Subpath() Creates a new SubPath instance.
Subpath(float startPointX, float startPointY) Constructs a new subpath starting at the given point.
Subpath(Point startPoint) Constructs a new subpath starting at the given point.
Subpath(Subpath subpath) Copy constructor.

Method Summary

Modifier and Type	Method and Description
void	addSegment(IShape segment) Adds a segment to the subpath.
Point	getLastPoint()
List<Point>	getPiecewiseLinearApproximation()
List<IShape>	getSegments()
Point	getStartPoint()
boolean	isClosed() Returns a boolean value indicating whether the subpath must be closed or not.
boolean	isDegenerate() Returns a boolean indicating whether the subpath is degenerate or not.
boolean	isEmpty() Checks whether subpath is empty or not.
boolean	isSinglePointClosed()
boolean	isSinglePointOpen()
void	setClosed(boolean closed) See isClosed()
void	setStartPoint(float x, float y) Sets the start point of the subpath.
void	setStartPoint(Point startPoint) Sets the start point of the subpath.

Methods inherited from class java.lang.Object

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

Constructor Detail

Subpath

public Subpath()

Creates a new SubPath instance.

Subpath

public Subpath(Subpath subpath)

Copy constructor.

Parameters:

subpath - Subpath which contents will be used to create this Subpath

Subpath

public Subpath(Point startPoint)

Constructs a new subpath starting at the given point.

Parameters:

startPoint - the point this subpath starts at

Subpath

public Subpath(float startPointX,
               float startPointY)

Constructs a new subpath starting at the given point.

Parameters:

startPointX - x-coordinate of the start point of subpath

startPointY - y-coordinate of the start point of subpath

Method Detail

setStartPoint

public void setStartPoint(Point startPoint)

Sets the start point of the subpath.

Parameters:

startPoint - the point this subpath starts at

setStartPoint

public void setStartPoint(float x,
                          float y)

Sets the start point of the subpath.

Parameters:

x - x-coordinate of the start pint

y - y-coordinate of the start pint

getStartPoint

public Point getStartPoint()

Returns:

The point this subpath starts at.

getLastPoint

public Point getLastPoint()

Returns:

The last point of the subpath.

addSegment

public void addSegment(IShape segment)

Adds a segment to the subpath. Note: each new segment shall start at the end of the previous segment.

Parameters:

segment - new segment.

getSegments

public List<IShape> getSegments()

Returns:

List comprising all the segments the subpath made on.

isEmpty

public boolean isEmpty()

Checks whether subpath is empty or not.

Returns:

true if the subpath is empty, false otherwise.

isSinglePointOpen

public boolean isSinglePointOpen()

Returns:

true if this subpath contains only one point and it is not closed, false otherwise

isSinglePointClosed

public boolean isSinglePointClosed()

Returns:

true if this subpath contains only one point and it is closed, false otherwise

isClosed

public boolean isClosed()

Returns a boolean value indicating whether the subpath must be closed or not. Ignore this value if the subpath is a rectangle because in this case it is already closed (of course if you paint the path using re operator)

Returns:

boolean value indicating whether the path must be closed or not.

setClosed

public void setClosed(boolean closed)

See isClosed()

Parameters:

closed - boolean value indicating whether the path is closed or not.

isDegenerate

public boolean isDegenerate()

Returns a boolean indicating whether the subpath is degenerate or not. A degenerate subpath is the subpath consisting of a single-point closed path or of two or more points at the same coordinates.

Returns:

boolean value indicating whether the path is degenerate or not.

getPiecewiseLinearApproximation

public List<Point> getPiecewiseLinearApproximation()

Returns:

List containing points of piecewise linear approximation for this subpath.