math.geom2d.curve
Class BoundarySet2D<T extends ContinuousBoundary2D>

java.lang.Object
  math.geom2d.curve.CurveSet2D<T>
      math.geom2d.curve.BoundarySet2D<T>

All Implemented Interfaces:

java.awt.Shape, java.lang.Iterable<T>, Boundary2D, Curve2D, OrientedCurve2D, Shape2D

Direct Known Subclasses:

Hyperbola2D

public class BoundarySet2D<T extends ContinuousBoundary2D>
extends CurveSet2D<T>
implements Boundary2D

A BoundarySet2D is a set of continuous oriented curves. Each curve of the set defines its own domain.

Author:

dlegland

Field Summary

Fields inherited from class math.geom2d.curve.CurveSet2D

curves

Fields inherited from interface math.geom2d.Shape2D

ACCURACY, defaultClipWindow, EMPTY_SET

Constructor Summary

BoundarySet2D()

BoundarySet2D(java.util.Collection<? extends T> curves)

BoundarySet2D(T curve)

BoundarySet2D(T[] curves)

Method Summary

CurveSet2D<? extends ContinuousOrientedCurve2D>	clip(Box2D box) Clip the curve by a box.
java.util.Collection<ContinuousBoundary2D>	getBoundaryCurves() Return the different continuous curves composing the boundary
BoundarySet2D<? extends ContinuousBoundary2D>	getReverseCurve() Returns the curve with same trace on the plane with parametrization in reverse order.
double	getSignedDistance(double x, double y) The same as getSignedDistance(Point2D), but by passing 2 double as arguments.
double	getSignedDistance(java.awt.geom.Point2D p) Get the signed distance of the curve to the given point : this distance is positive if the point lies outside the shape, and is negative if the point lies inside the shape.
CurveSet2D<? extends ContinuousOrientedCurve2D>	getSubCurve(double t0, double t1) Return an instance of CurveSet2D.
double	getWindingAngle(java.awt.geom.Point2D point) Return the angle portion that the curve turn around the given point.
boolean	isInside(java.awt.geom.Point2D point) return true if the point is 'inside' the domain bounded by the curve.
BoundarySet2D<? extends ContinuousBoundary2D>	transform(AffineTransform2D trans) Transform each curve, and build a new CurveSet2D with the set of transformed curves.

Methods inherited from class math.geom2d.curve.CurveSet2D

addCurve, clearCurves, contains, contains, contains, contains, equals, fromUnitSegment, getBoundingBox, getBounds, getBounds2D, getContinuousCurves, getCurveNumber, getCurves, getDistance, getDistance, getFirstCurve, getFirstPoint, getGeneralPath, getIntersections, getLastCurve, getLastPoint, getPathIterator, getPathIterator, getPoint, getPoint, getPosition, getT0, getT1, intersects, intersects, isBounded, isEmpty, iterator, project, removeCurve, toUnitSegment

Methods inherited from class java.lang.Object

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

Methods inherited from interface math.geom2d.curve.Curve2D

getContinuousCurves, getFirstPoint, getIntersections, getLastPoint, getPoint, getPoint, getPosition, getT0, getT1, project

Methods inherited from interface math.geom2d.Shape2D

getBoundingBox, getDistance, getDistance, isBounded

Methods inherited from interface java.awt.Shape

contains, contains, contains, contains, getBounds, getBounds2D, getPathIterator, getPathIterator, intersects, intersects

Constructor Detail

BoundarySet2D

public BoundarySet2D()

BoundarySet2D

public BoundarySet2D(T[] curves)

BoundarySet2D

public BoundarySet2D(java.util.Collection<? extends T> curves)

BoundarySet2D

public BoundarySet2D(T curve)

Method Detail

getWindingAngle

public double getWindingAngle(java.awt.geom.Point2D point)

Description copied from interface: OrientedCurve2D

Return the angle portion that the curve turn around the given point. Result is a signed angle.

Specified by:

getWindingAngle in interface OrientedCurve2D

Parameters:

point - a point of the plane

Returns:

a signed angle

getSignedDistance

public double getSignedDistance(java.awt.geom.Point2D p)

Description copied from interface: OrientedCurve2D

Get the signed distance of the curve to the given point : this distance is positive if the point lies outside the shape, and is negative if the point lies inside the shape. In this case, absolute value of distance is equals to the distance to the border of the shape.

Specified by:

getSignedDistance in interface OrientedCurve2D

Parameters:

p - a point of the plane

Returns:

the signed distance to the curve

getBoundaryCurves

public java.util.Collection<ContinuousBoundary2D> getBoundaryCurves()

Description copied from interface: Boundary2D

Return the different continuous curves composing the boundary

Specified by:

getBoundaryCurves in interface Boundary2D

getSignedDistance

public double getSignedDistance(double x,
                                double y)

Description copied from interface: OrientedCurve2D

The same as getSignedDistance(Point2D), but by passing 2 double as arguments.

Specified by:

getSignedDistance in interface OrientedCurve2D

Parameters:

x - x-coord of a point

y - y-coord of a point

Returns:

the signed distance of the point (x,y) to the curve

isInside

public boolean isInside(java.awt.geom.Point2D point)

Description copied from interface: OrientedCurve2D

return true if the point is 'inside' the domain bounded by the curve.

Specified by:

isInside in interface OrientedCurve2D

Parameters:

point - a point in the plane

Returns:

true if the point is on the left side of the curve.

getReverseCurve

public BoundarySet2D<? extends ContinuousBoundary2D> getReverseCurve()

Description copied from interface: Curve2D

Returns the curve with same trace on the plane with parametrization in reverse order.

Specified by:

getReverseCurve in interface Boundary2D

Specified by:

getReverseCurve in interface Curve2D

Specified by:

getReverseCurve in interface OrientedCurve2D

Overrides:

getReverseCurve in class CurveSet2D<T extends ContinuousBoundary2D>

getSubCurve

public CurveSet2D<? extends ContinuousOrientedCurve2D> getSubCurve(double t0,
                                                                   double t1)

Description copied from class: CurveSet2D

Return an instance of CurveSet2D.

Specified by:

getSubCurve in interface Curve2D

Overrides:

getSubCurve in class CurveSet2D<T extends ContinuousBoundary2D>

Parameters:

t0 - position of the start of the sub-curve

t1 - position of the end of the sub-curve

Returns:

the portion of original curve comprised between t0 and t1.

clip

public CurveSet2D<? extends ContinuousOrientedCurve2D> clip(Box2D box)

Clip the curve by a box. The result is an instance of ContinuousOrientedCurveSet2D, which contains only instances of ContinuousOrientedCurve2D. If the curve is not clipped, the result is an instance of ContinuousOrientedCurveSet2D which contains 0 curves.

Specified by:

clip in interface Curve2D

Specified by:

clip in interface OrientedCurve2D

Specified by:

clip in interface Shape2D

Overrides:

clip in class CurveSet2D<T extends ContinuousBoundary2D>

Parameters:

box - the clipping box

Returns:

the clipped shape

transform

public BoundarySet2D<? extends ContinuousBoundary2D> transform(AffineTransform2D trans)

Description copied from class: CurveSet2D

Transform each curve, and build a new CurveSet2D with the set of transformed curves.

Specified by:

transform in interface Boundary2D

Specified by:

transform in interface Curve2D

Specified by:

transform in interface OrientedCurve2D

Specified by:

transform in interface Shape2D

Overrides:

transform in class CurveSet2D<T extends ContinuousBoundary2D>

Parameters:

trans - an affine transform

Returns:

the transformed shape