org.eclipse.gef.geometry.planar

Class Polyline

java.lang.Object

org.eclipse.gef.geometry.planar.Polyline

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, ICurve, IGeometry, IRotatable<Polyline>, IScalable<Polyline>, ITranslatable<Polyline>

public class Polyline
extends java.lang.Object
implements ICurve

Represents the geometric shape of a polyline. Note that while all manipulations (e.g. within shrink, expand) within this class are based on double precision, all comparisons (e.g. within contains, intersects, equals, etc.) are based on a limited precision (with an accuracy defined within PrecisionUtils) to compensate for rounding effects.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Polyline(double... coordinates) Constructs a new Polyline from a even-numbered sequence of coordinates.
Polyline(Line[] segmentsArray) Constructs a new Polyline from the given array of Line segments.
Polyline(Point... points) Constructs a new Polyline from the given sequence of Point s.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone() Overridden with public visibility as recommended within Cloneable .
boolean	contains(double x, double y) Checks whether the point that is represented by its x- and y-coordinates is contained within this Polyline.
boolean	contains(Point p) Returns whether the given Point is contained within this IGeometry.
boolean	equals(java.lang.Object o)
boolean	equals(Point... points) Checks whether this Polyline and the one that is indirectly given via the sequence of points are regarded to be equal.
Rectangle	getBounds() Returns the smallest Rectangle fully enclosing this IGeometry.
Point	getCentroid() Computes the centroid of this AbstractPointListBasedGeometry.
double[]	getCoordinates() Returns a double array which represents the sequence of coordinates of the Points that make up this AbstractPointListBasedGeometry.
Polyline	getCopy() Returns a new identical copy of this IGeometry.
Line[]	getCurves() Returns a sequence of Lines, representing the segments that are obtained by linking each two successive point of this Polyline (including the last and the first one).
Point[]	getIntersections(ICurve c) Returns the points of intersection between this ICurve and the given ICurve.
double	getLength() Returns the length of this Polyline by adding up the lengths of the individual Lines.
ICurve[]	getOverlaps(ICurve c) Returns the curve segments at which this ICurve and the given ICurve overlap.
Point	getP1() Returns a Point representing the start point of this ICurve.
Point	getP2() Returns a Point representing the end point of this ICurve .
Point[]	getPoints() Returns a copy of the Points that make up this AbstractPointListBasedGeometry.
Point	getProjection(Point reference) Returns a projection of the given reference Point onto this ICurve, i.e. a Point on this ICurve that is closest to the given reference Point.
T	getRotatedCCW(Angle alpha) Rotates the calling object by specified Angle counter-clock-wise (CCW) around its center Point.
T	getRotatedCCW(Angle angle, double cx, double cy) Rotates the calling object by the specified Angle counter-clock-wise (CCW) around the specified center Point (cx, cy).
T	getRotatedCCW(Angle alpha, Point center) Rotates the calling object by the specified Angle counter-clock-wise (CCW) around the specified center Point.
T	getRotatedCW(Angle alpha) Rotates the calling object by specified Angle clock-wise (CW) around its center Point.
T	getRotatedCW(Angle angle, double cx, double cy) Rotates the calling object by the specified Angle clock-wise (CW) around the specified center Point (cx, cy).
T	getRotatedCW(Angle alpha, Point center) Rotates the calling object by the specified Angle clock-wise (CW) around the specified center Point.
T	getScaled(double factor) Scales a copy of the calling object by the given factor relative to its center Point.
T	getScaled(double factorX, double factorY) Scales a copy of the calling object by the given factors relative to its center Point.
T	getScaled(double factor, double cx, double cy) Scales a copy of the calling object by the given factor relative to the given center Point (cx, cy).
T	getScaled(double fx, double fy, double cx, double cy) Scales a copy of the calling object by the given factors relative to the given center Point (cx, cy).
T	getScaled(double factorX, double factorY, Point center) Scales a copy of the calling object by the given factors relative to the given center Point.
T	getScaled(double factor, Point center) Scales a copy of the calling object by the given factor relative to the given center Point.
Polyline	getTransformed(AffineTransform t) Default implementation returning a transformed Path representation of this IGeometry.
T	getTranslated(double dx, double dy) Translates a copy of this object by the given values in x and y direction.
T	getTranslated(Point pt) Translates a copy of this object by the given Point.
double	getX1() Returns the start Point's x coordinate.
double	getX2() Returns the end Point's x coordinate.
double	getY1() Returns the start Point's y coordinate.
double	getY2() Returns the end Point's y coordinate.
int	hashCode()
boolean	intersects(ICurve c) Tests if this ICurve and the given ICurve intersect, i.e.
boolean	overlaps(ICurve c) Tests if this ICurve and the given ICurve overlap, i.e.
T	rotateCCW(Angle alpha) Rotates this AbstractPointListBasedGeometry counter-clockwise (CCW) by the given Angle around its centroid (see getCentroid()).
T	rotateCCW(Angle alpha, double cx, double cy) Rotates this AbstractPointListBasedGeometry counter-clockwise (CCW) by the given Angle around the Point specified by the passed-in x and y coordinates.
T	rotateCCW(Angle alpha, Point center) Rotates this AbstractPointListBasedGeometry counter-clockwise (CCW) by the given Angle around the given Point.
T	rotateCW(Angle alpha) Rotates this AbstractPointListBasedGeometry clockwise (CW) by the given Angle around its centroid (see getCentroid()).
T	rotateCW(Angle alpha, double cx, double cy) Rotates this AbstractPointListBasedGeometry clockwise (CW) by the given Angle around the Point specified by the passed-in x and y coordinates.
T	rotateCW(Angle alpha, Point center) Rotates this AbstractPointListBasedGeometry clockwise (CW) by the given Angle around the given Point.
T	scale(double factor) Scales the calling object by the given factor relative to its center Point.
T	scale(double fx, double fy) Scales the calling object by the given factors relative to the given center Point.
T	scale(double factor, double cx, double cy) Scales the calling object by the given factor relative to the given center Point (cx, cy).
T	scale(double fx, double fy, double cx, double cy) Scales the calling object by the given factors relative to the given center Point (cx, cy).
T	scale(double fx, double fy, Point center) Scales the calling object by the given factors relative to the given center Point.
T	scale(double factor, Point center) Scales the calling object by the given factor relative to the given center Point.
Line[]	toBezier() Computes a list of BezierCurves that approximate the ICurve.
Path	toPath() Converts this IGeometry into a Path representation.
PolyBezier	toPolyBezier() Transforms this Polyline into a PolyBezier.
java.lang.String	toString()
boolean	touches(IGeometry g) Returns true if the input IGeometry touches this IGeometry, i.e. there is at least one common point.
T	translate(double dx, double dy) Translates the object by the given values in x and y direction.
T	translate(Point p) Translates the object by the given Point.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.gef.geometry.planar.IGeometry

getBounds, touches

Constructor Detail

Polyline

public Polyline(double... coordinates)

Constructs a new Polyline from a even-numbered sequence of coordinates. Similar to Polyline(Point...), only that coordinates of points rather than Points are provided.

Parameters:

coordinates - an alternating, even-numbered sequence of x- and y-coordinates, representing the points from which the Polyline is to be created

Polyline

public Polyline(Line[] segmentsArray)

Constructs a new Polyline from the given array of Line segments.

Parameters:

segmentsArray - The array of Lines from which this Polyline is constructed.

Polyline

public Polyline(Point... points)

Constructs a new Polyline from the given sequence of Point s. The Polyline that is created will be automatically closed, i.e. it will not only contain a segment between succeeding points of the sequence but as well back from the last to the first point.

Parameters:

points - a sequence of points, from which the Polyline is to be created

Method Detail

contains

public boolean contains(double x,
                        double y)

Checks whether the point that is represented by its x- and y-coordinates is contained within this Polyline.

Parameters:

x - the x coordinate of the point to test

y - the y coordinate of the point to test

Returns:

true if the point represented by its coordinates if contained within this Polyline, otherwise false

contains

public boolean contains(Point p)

Description copied from interface: IGeometry

Returns whether the given Point is contained within this IGeometry. This includes the case that the Point lies on the border of this IGeometry.

Specified by:

contains in interface IGeometry

Parameters:

p - The Point being tested for containment

Returns:

true if the Point is contained within this IGeometry, false otherwise.

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

equals

public boolean equals(Point... points)

Checks whether this Polyline and the one that is indirectly given via the sequence of points are regarded to be equal. The Polyline s will be regarded equal, if they are characterized by the same segments.

Parameters:

points - an array of Point characterizing a Polyline to be checked for equality

Returns:

true if the sequence of points that characterize this Polyline and the Polyline indirectly given via the array of points are regarded to form the same segments

getCopy

public Polyline getCopy()

Description copied from interface: IGeometry

Returns a new identical copy of this IGeometry.

Specified by:

getCopy in interface IGeometry

Returns:

a copy identical to this IGeometry

getCurves

public Line[] getCurves()

Returns a sequence of Lines, representing the segments that are obtained by linking each two successive point of this Polyline (including the last and the first one).

Returns:

an array of Lines, representing the segments that make up this Polyline

getIntersections

public Point[] getIntersections(ICurve c)

Description copied from interface: ICurve

Returns the points of intersection between this ICurve and the given ICurve.

Specified by:

getIntersections in interface ICurve

Parameters:

c - The ICurve to compute intersection points with.

Returns:

The points of intersection.

getLength

public double getLength()

Returns the length of this Polyline by adding up the lengths of the individual Lines.

Returns:

The length of this Polyline.

getOverlaps

public ICurve[] getOverlaps(ICurve c)

Description copied from interface: ICurve

Returns the curve segments at which this ICurve and the given ICurve overlap.

Specified by:

getOverlaps in interface ICurve

Parameters:

c - The curve to compute overlaps with.

Returns:

The segments where both curves overlap.

getP1

public Point getP1()

Description copied from interface: ICurve

Returns a Point representing the start point of this ICurve.

Specified by:

getP1 in interface ICurve

Returns:

a new Point with the coordinates of the ICurve's start point.

getP2

public Point getP2()

Description copied from interface: ICurve

Returns a Point representing the end point of this ICurve .

Specified by:

getP2 in interface ICurve

Returns:

a new Point with the coordinates of the ICurve's end point.

getProjection

public Point getProjection(Point reference)

Description copied from interface: ICurve

Returns a projection of the given reference Point onto this ICurve, i.e. a Point on this ICurve that is closest to the given reference Point. Note, that

Specified by:

getProjection in interface ICurve

Parameters:

reference - The reference Point for which to return the projection.

Returns:

The projection of the given reference Point onto this ICurve.

getTransformed

public Polyline getTransformed(AffineTransform t)

Default implementation returning a transformed Path representation of this IGeometry. Subclasses may override this method to return a more specific representation.

Specified by:

getTransformed in interface IGeometry

Parameters:

t - The AffineTransform to be applied

Returns:

a transformed Path representation of this IGeometry

getX1

public double getX1()

Description copied from interface: ICurve

Returns the start Point's x coordinate.

Specified by:

getX1 in interface ICurve

Returns:

the start Point's x coordinate

getX2

public double getX2()

Description copied from interface: ICurve

Returns the end Point's x coordinate.

Specified by:

getX2 in interface ICurve

Returns:

the end Point's x coordinate

getY1

public double getY1()

Description copied from interface: ICurve

Returns the start Point's y coordinate.

Specified by:

getY1 in interface ICurve

Returns:

the start Point's y coordinate

getY2

public double getY2()

Description copied from interface: ICurve

Returns the end Point's y coordinate.

Specified by:

getY2 in interface ICurve

Returns:

the end Point's y coordinate

intersects

public boolean intersects(ICurve c)

Description copied from interface: ICurve

Tests if this ICurve and the given ICurve intersect, i.e. whether a final set of intersection points exists. Two curves intersect if they touch (see IGeometry.touches(IGeometry)) but do not overlap (see ICurve.overlaps(ICurve)).

Specified by:

intersects in interface ICurve

Parameters:

c - The ICurve to test for intersections.

Returns:

true if they intersect, false otherwise

overlaps

public boolean overlaps(ICurve c)

Description copied from interface: ICurve

Tests if this ICurve and the given ICurve overlap, i.e. whether an infinite set of intersection points exists. Two curves overlap if they touch (see IGeometry.touches(IGeometry)) but not intersect (see ICurve.intersects(ICurve)).

Specified by:

overlaps in interface ICurve

Parameters:

c - The ICurve to test for overlap.

Returns:

true if they overlap, false otherwise

toBezier

public Line[] toBezier()

Description copied from interface: ICurve

Computes a list of BezierCurves that approximate the ICurve. For example, a Line or a BezierCurve in general could return a list with the curve itself as its only element. But an Ellipse or an Arc may return a list of consecutive BezierCurves which approximate the ICurve.

Specified by:

toBezier in interface ICurve

Returns:

a list of BezierCurves that approximate the ICurve

toPath

public Path toPath()

Description copied from interface: IGeometry

Converts this IGeometry into a Path representation.

Specified by:

toPath in interface IGeometry

Returns:

A new Path representation for this IGeometry.

toPolyBezier

public PolyBezier toPolyBezier()

Transforms this Polyline into a PolyBezier.

Returns:

a PolyBezier representing this Polyline

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getBounds

public final Rectangle getBounds()

Description copied from interface: IGeometry

Returns the smallest Rectangle fully enclosing this IGeometry.

Specified by:

getBounds in interface IGeometry

Returns:

A new Rectangle object that fully encloses this IGeometry

getCentroid

public Point getCentroid()

Computes the centroid of this AbstractPointListBasedGeometry. The centroid is the "center of gravity", i.e. assuming a Polygon is spanned by the Points of this AbstractPointListBasedGeometry and it is made of a material of constant density, then it is in a balanced state, if you put it on a pin that is placed exactly on its centroid.

Returns:

the center Point (or centroid) of this AbstractPointListBasedGeometry

getCoordinates

public final double[] getCoordinates()

Returns a double array which represents the sequence of coordinates of the Points that make up this AbstractPointListBasedGeometry.

Returns:

an array that alternately contains the x and y coordinates of this AbstractPointListBasedGeometry's points

getPoints

public final Point[] getPoints()

Returns a copy of the Points that make up this AbstractPointListBasedGeometry.

Returns:

an array of Points representing the Points that make up this AbstractPointListBasedGeometry

getRotatedCCW

public T getRotatedCCW(Angle alpha)

Description copied from interface: IRotatable

Rotates the calling object by specified Angle counter-clock-wise (CCW) around its center Point. Does not necessarily return an object of the same type.

Specified by:

getRotatedCCW in interface IRotatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

alpha - rotation Angle

Returns:

an IGeometry representing the result of the rotation

getRotatedCCW

public T getRotatedCCW(Angle angle,
                       double cx,
                       double cy)

Description copied from interface: IRotatable

Rotates the calling object by the specified Angle counter-clock-wise (CCW) around the specified center Point (cx, cy). Does not necessarily return an object of the same type.

Specified by:

getRotatedCCW in interface IRotatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

angle - rotation Angle

cx - x-coordinate of the relative Point for the rotation

cy - y-coordinate of the relative Point for the rotation

Returns:

an IGeometry representing the result of the rotation

getRotatedCCW

public T getRotatedCCW(Angle alpha,
                       Point center)

Description copied from interface: IRotatable

Rotates the calling object by the specified Angle counter-clock-wise (CCW) around the specified center Point. Does not necessarily return an object of the same type.

Specified by:

getRotatedCCW in interface IRotatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

alpha - rotation Angle

center - relative Point for the rotation

Returns:

an IGeometry representing the result of the rotation

getRotatedCW

public T getRotatedCW(Angle alpha)

Description copied from interface: IRotatable

Rotates the calling object by specified Angle clock-wise (CW) around its center Point. Does not necessarily return an object of the same type.

Specified by:

getRotatedCW in interface IRotatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

alpha - rotation Angle

Returns:

an IGeometry representing the result of the rotation

getRotatedCW

public T getRotatedCW(Angle angle,
                      double cx,
                      double cy)

Description copied from interface: IRotatable

Rotates the calling object by the specified Angle clock-wise (CW) around the specified center Point (cx, cy). Does not necessarily return an object of the same type.

Specified by:

getRotatedCW in interface IRotatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

angle - rotation Angle

cx - x-coordinate of the relative Point for the rotation

cy - y-coordinate of the relative Point for the rotation

Returns:

an IGeometry representing the result of the rotation

getRotatedCW

public T getRotatedCW(Angle alpha,
                      Point center)

Description copied from interface: IRotatable

Rotates the calling object by the specified Angle clock-wise (CW) around the specified center Point. Does not necessarily return an object of the same type.

Specified by:

getRotatedCW in interface IRotatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

alpha - rotation Angle

center - relative Point for the rotation

Returns:

an IGeometry representing the result of the rotation

getScaled

public T getScaled(double factor)

Description copied from interface: IScalable

Scales a copy of the calling object by the given factor relative to its center Point.

Specified by:

getScaled in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

factor - scale-factor

Returns:

the new, scaled object

getScaled

public T getScaled(double factorX,
                   double factorY)

Description copied from interface: IScalable

Scales a copy of the calling object by the given factors relative to its center Point.

Specified by:

getScaled in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

factorX - x-scale-factor

factorY - y-scale-factor

Returns:

the new, scaled object

getScaled

public T getScaled(double factor,
                   double cx,
                   double cy)

Description copied from interface: IScalable

Scales a copy of the calling object by the given factor relative to the given center Point (cx, cy).

Specified by:

getScaled in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

factor - scale-factor

cx - x-coordinate of the relative Point for the scaling

cy - y-coordinate of the relative Point for the scaling

Returns:

the new, scaled object

getScaled

public T getScaled(double fx,
                   double fy,
                   double cx,
                   double cy)

Description copied from interface: IScalable

Scales a copy of the calling object by the given factors relative to the given center Point (cx, cy).

Specified by:

getScaled in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

fx - x-scale-factor

fy - y-scale-factor

cx - x-coordinate of the relative Point for the scaling

cy - y-coordinate of the relative Point for the scaling

Returns:

the new, scaled object

getScaled

public T getScaled(double factorX,
                   double factorY,
                   Point center)

Description copied from interface: IScalable

Scales a copy of the calling object by the given factors relative to the given center Point.

Specified by:

getScaled in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

factorX - x-scale-factor

factorY - y-scale-factor

center - relative Point for the scaling

Returns:

the new, scaled object

getScaled

public T getScaled(double factor,
                   Point center)

Description copied from interface: IScalable

Scales a copy of the calling object by the given factor relative to the given center Point.

Specified by:

getScaled in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

factor - scale-factor

center - relative Point for the scaling

Returns:

the new, scaled object

getTranslated

public T getTranslated(double dx,
                       double dy)

Description copied from interface: ITranslatable

Translates a copy of this object by the given values in x and y direction.

Specified by:

getTranslated in interface ITranslatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

dx - x-translation

dy - y-translation

Returns:

a new, translated object

getTranslated

public T getTranslated(Point pt)

Description copied from interface: ITranslatable

Translates a copy of this object by the given Point.

Specified by:

getTranslated in interface ITranslatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

pt - translation Point

Returns:

a new, translated object

rotateCCW

public T rotateCCW(Angle alpha)

Rotates this AbstractPointListBasedGeometry counter-clockwise (CCW) by the given Angle around its centroid (see getCentroid()).

Parameters:

alpha - the rotation Angle

Returns:

this for convenience

See Also:

rotateCCW(Angle, Point)

rotateCCW

public T rotateCCW(Angle alpha,
                   double cx,
                   double cy)

Rotates this AbstractPointListBasedGeometry counter-clockwise (CCW) by the given Angle around the Point specified by the passed-in x and y coordinates.

Parameters:

alpha - the rotation Angle

cx - the x coordinate of the Point to rotate around

cy - the y coordinate of the Point to rotate around

Returns:

this for convenience

See Also:

rotateCCW(Angle, Point)

rotateCCW

public T rotateCCW(Angle alpha,
                   Point center)

Rotates this AbstractPointListBasedGeometry counter-clockwise (CCW) by the given Angle around the given Point. The rotation is done by

1. translating this AbstractPointListBasedGeometry by the negated Point center
2. rotating each Point of this AbstractPointListBasedGeometry counter-clockwise by the given Angle
3. translating this AbstractPointListBasedGeometry back by the Point center

Parameters:

alpha - the rotation Angle

center - the Point to rotate around

Returns:

this for convenience

rotateCW

public T rotateCW(Angle alpha)

Rotates this AbstractPointListBasedGeometry clockwise (CW) by the given Angle around its centroid (see getCentroid()).

Parameters:

alpha - the rotation Angle

Returns:

this for convenience

See Also:

rotateCW(Angle, Point)

rotateCW

public T rotateCW(Angle alpha,
                  double cx,
                  double cy)

Rotates this AbstractPointListBasedGeometry clockwise (CW) by the given Angle around the Point specified by the passed-in x and y coordinates.

Parameters:

alpha - the rotation Angle

cx - the x coordinate of the Point to rotate around

cy - the y coordinate of the Point to rotate around

Returns:

this for convenience

See Also:

rotateCW(Angle, Point)

rotateCW

public T rotateCW(Angle alpha,
                  Point center)

Rotates this AbstractPointListBasedGeometry clockwise (CW) by the given Angle around the given Point. The rotation is done by

1. translating this AbstractPointListBasedGeometry by the negated Point center
2. rotating each Point of this AbstractPointListBasedGeometry clockwise by the given Angle
3. translating this AbstractPointListBasedGeometry back by the Point center

Parameters:

alpha - the rotation Angle

center - the Point to rotate around

Returns:

this for convenience

scale

public T scale(double factor)

Description copied from interface: IScalable

Scales the calling object by the given factor relative to its center Point.

Specified by:

scale in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

factor - scale-factor

Returns:

this for convenience

scale

public T scale(double fx,
               double fy)

Description copied from interface: IScalable

Scales the calling object by the given factors relative to the given center Point.

Specified by:

scale in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

fx - x-scale-factor

fy - y-scale-factor

Returns:

this for convenience

scale

public T scale(double factor,
               double cx,
               double cy)

Description copied from interface: IScalable

Scales the calling object by the given factor relative to the given center Point (cx, cy).

Specified by:

scale in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

factor - scale-factor

cx - x-coordinate of the relative Point for the scaling

cy - y-coordinate of the relative Point for the scaling

Returns:

this for convenience

scale

public T scale(double fx,
               double fy,
               double cx,
               double cy)

Description copied from interface: IScalable

Scales the calling object by the given factors relative to the given center Point (cx, cy).

Specified by:

scale in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

fx - x-scale-factor

fy - y-scale-factor

cx - x-coordinate of the relative Point for the scaling

cy - y-coordinate of the relative Point for the scaling

Returns:

this for convenience

scale

public T scale(double fx,
               double fy,
               Point center)

Description copied from interface: IScalable

Scales the calling object by the given factors relative to the given center Point.

Specified by:

scale in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

fx - x-scale-factor

fy - y-scale-factor

center - relative Point for the scaling

Returns:

this for convenience

scale

public T scale(double factor,
               Point center)

Description copied from interface: IScalable

Scales the calling object by the given factor relative to the given center Point.

Specified by:

scale in interface IScalable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

factor - scale-factor

center - relative Point for the scaling

Returns:

this for convenience

translate

public T translate(double dx,
                   double dy)

Description copied from interface: ITranslatable

Translates the object by the given values in x and y direction.

Specified by:

translate in interface ITranslatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

dx - x-translation

dy - y-translation

Returns:

this for convenience

translate

public T translate(Point p)

Description copied from interface: ITranslatable

Translates the object by the given Point.

Specified by:

translate in interface ITranslatable<T extends org.eclipse.gef.geometry.planar.AbstractPointListBasedGeometry<?>>

Parameters:

p - translation Point

Returns:

this for convenience

clone

public java.lang.Object clone()

Overridden with public visibility as recommended within Cloneable .

Overrides:

clone in class java.lang.Object

hashCode

public final int hashCode()

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

touches

public boolean touches(IGeometry g)

Description copied from interface: IGeometry

Returns true if the input IGeometry touches this IGeometry, i.e. there is at least one common point.

Specified by:

touches in interface IGeometry

Parameters:

g - The IGeometry for the intersection test

Returns:

true if the input IGeometry and this IGeometry have at least one common point.