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java.lang.Object math.geom2d.curve.AbstractContinuousCurve2D math.geom2d.polygon.LinearCurve2D math.geom2d.polygon.LinearRing2D
public class LinearRing2D
A LinearRing2D is a Polyline2D whose last point is connected to the first one. This is typically the boundary of a SimplePolygon2D.
The name 'LinearRing2D' was used for 2 reasons:
Constructor Summary  

LinearRing2D()


LinearRing2D(java.util.Collection<? extends Point2D> points)


LinearRing2D(double[] xcoords,
double[] ycoords)


LinearRing2D(Point2D... vertices)


LinearRing2D(Point2D initialPoint)

Method Summary  

boolean 
almostEquals(GeometricObject2D obj,
double eps)
Checks if the two objects are similar up to a given threshold value. 
java.awt.geom.GeneralPath 
appendPath(java.awt.geom.GeneralPath path)
Append the path of the curve to the given path. 
double 
area()
Computes the signed area of the linear ring. 
LinearRing2D 
clone()
Overrides Object declaration to ensure Curve2D implementation are cloned as Curve2D. 
java.util.Collection<? extends LinearRing2D> 
continuousCurves()
Returns the collection of continuous curves which constitute this curve. 
static LinearRing2D 
create(java.util.Collection<? extends Point2D> points)
Static factory for creating a new LinearRing2D from a collection of points. 
static LinearRing2D 
create(Point2D... vertices)
Static factory for creating a new LinearRing2D from an array of points. 
CirculinearDomain2D 
domain()
Returns the domain delimited by this boundary. 
LineSegment2D 
edge(int index)
Returns the ith edge of this linear curve. 
int 
edgeNumber()
Returns the number of edges of this linear curve. 
java.util.Collection<LineSegment2D> 
edges()
Returns an array of LineSegment2D. 
boolean 
equals(java.lang.Object object)

void 
fill(java.awt.Graphics2D g2)
Fills the interior of the boundary, using the Graphics current Paint. 
double 
getT1()
Deprecated. replaced by t1() (since 0.11.1). 
boolean 
isClosed()
Returns true, by definition of linear ring. 
boolean 
isInside(double x,
double y)

boolean 
isInside(Point2D point)
Returns true if the point is 'inside' the domain bounded by the curve. 
LineSegment2D 
lastEdge()
Returns the last edge of this linear ring. 
Point2D 
lastPoint()
Returns the first point, as this is the same as the last point. 
CirculinearRing2D 
parallel(double dist)
Creates a new curve, formed by the points with parameterization: p(t) = c(t) + d*n(t)/n(t) , with p(t) being a point of
the original curve, n(t) the normal of the curve, and n being the
norm of n. 
Point2D 
point(double t)
Returns point from position as double. 
LinearRing2D 
reverse()
Returns the linear ring with same points taken in reverse order. 
Polyline2D 
subCurve(double t0,
double t1)
Return an instance of Polyline2D. 
double 
t1()
Returns the number of points in the linear ring. 
LinearRing2D 
transform(AffineTransform2D trans)
Returns the transformed shape, as a LinerRing2D. 
CirculinearRing2D 
transform(CircleInversion2D inv)
Transforms the shape by a circle inversion. 
double 
windingAngle(Point2D point)
Return the angle portion that the curve turn around the given point. 
Methods inherited from class math.geom2d.polygon.LinearCurve2D 

addVertex, asGeneralPath, boundingBox, buffer, clearVertices, clip, closestVertexIndex, contains, contains, curvature, distance, distance, draw, firstEdge, firstPoint, getT0, insertVertex, intersections, isBounded, isEmpty, isSingular, leftTangent, length, length, position, position, project, removeVertex, removeVertex, rightTangent, setVertex, signedDistance, signedDistance, singularPoints, smoothPieces, t0, vertex, vertexArray, vertexIterator, vertexNumber, vertices 
Methods inherited from class math.geom2d.curve.AbstractContinuousCurve2D 

asAwtShape, asPolyline 
Methods inherited from class java.lang.Object 

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 
Methods inherited from interface math.geom2d.circulinear.CirculinearContinuousCurve2D 

clip, smoothPieces 
Methods inherited from interface math.geom2d.curve.ContinuousCurve2D 

asPolyline, curvature, leftTangent, rightTangent 
Methods inherited from interface math.geom2d.circulinear.CirculinearBoundary2D 

clip 
Methods inherited from interface math.geom2d.circulinear.CirculinearCurve2D 

length, length, position 
Methods inherited from interface math.geom2d.circulinear.CirculinearShape2D 

buffer 
Methods inherited from interface math.geom2d.domain.OrientedCurve2D 

signedDistance, signedDistance 
Constructor Detail 

public LinearRing2D()
public LinearRing2D(Point2D initialPoint)
public LinearRing2D(Point2D... vertices)
public LinearRing2D(double[] xcoords, double[] ycoords)
public LinearRing2D(java.util.Collection<? extends Point2D> points)
Method Detail 

public static LinearRing2D create(java.util.Collection<? extends Point2D> points)
public static LinearRing2D create(Point2D... vertices)
public double area()
public java.util.Collection<LineSegment2D> edges()
edges
in class LinearCurve2D
public int edgeNumber()
LinearCurve2D
edgeNumber
in class LinearCurve2D
public LineSegment2D edge(int index)
LinearCurve2D
edge
in class LinearCurve2D
public LineSegment2D lastEdge()
lastEdge
in class LinearCurve2D
public CirculinearRing2D parallel(double dist)
CirculinearCurve2D
p(t) = c(t) + d*n(t)/n(t)
, with p(t) being a point of
the original curve, n(t) the normal of the curve, and n being the
norm of n.
parallel
in interface CirculinearBoundary2D
parallel
in interface CirculinearContinuousCurve2D
parallel
in interface CirculinearContour2D
parallel
in interface CirculinearCurve2D
parallel
in interface CirculinearRing2D
parallel
in class LinearCurve2D
dist
 the distance between the original curve and he parallel curve.
public CirculinearRing2D transform(CircleInversion2D inv)
CirculinearShape2D
transform
in interface CirculinearBoundary2D
transform
in interface CirculinearContinuousCurve2D
transform
in interface CirculinearContour2D
transform
in interface CirculinearCurve2D
transform
in interface CirculinearShape2D
inv
 the circle inversion
public CirculinearDomain2D domain()
Boundary2D
domain
in interface CirculinearBoundary2D
domain
in interface CirculinearRing2D
domain
in interface Boundary2D
public void fill(java.awt.Graphics2D g2)
Boundary2D
fill
in interface Boundary2D
g2
 the Graphics to fill onpublic double windingAngle(Point2D point)
OrientedCurve2D
windingAngle
in interface OrientedCurve2D
point
 a point of the plane
public boolean isInside(double x, double y)
public boolean isInside(Point2D point)
Boundary2D
isInside
in interface Boundary2D
isInside
in interface OrientedCurve2D
point
 a point in the plane
public boolean isClosed()
isClosed
in interface ContinuousCurve2D
public Point2D point(double t)
point
in interface Curve2D
public double t1()
t1
in interface Curve2D
@Deprecated public double getT1()
getT1
in interface Curve2D
public Point2D lastPoint()
lastPoint
in interface Curve2D
lastPoint
in class AbstractContinuousCurve2D
Curve2D.t1()
,
Curve2D.point(double)
public java.util.Collection<? extends LinearRing2D> continuousCurves()
Curve2D
continuousCurves
in interface CirculinearBoundary2D
continuousCurves
in interface CirculinearCurve2D
continuousCurves
in interface Curve2D
continuousCurves
in interface Boundary2D
continuousCurves
in class LinearCurve2D
public LinearRing2D reverse()
reverse
in interface CirculinearBoundary2D
reverse
in interface CirculinearContinuousCurve2D
reverse
in interface CirculinearContour2D
reverse
in interface CirculinearCurve2D
reverse
in interface CirculinearRing2D
reverse
in interface ContinuousCurve2D
reverse
in interface Curve2D
reverse
in interface Boundary2D
reverse
in interface ContinuousOrientedCurve2D
reverse
in interface Contour2D
reverse
in interface OrientedCurve2D
public Polyline2D subCurve(double t0, double t1)
subCurve
in interface CirculinearContinuousCurve2D
subCurve
in interface CirculinearCurve2D
subCurve
in interface ContinuousCurve2D
subCurve
in interface Curve2D
subCurve
in interface ContinuousOrientedCurve2D
t0
 position of the start of the subcurvet1
 position of the end of the subcurve
public LinearRing2D transform(AffineTransform2D trans)
transform
in interface ContinuousCurve2D
transform
in interface Curve2D
transform
in interface Boundary2D
transform
in interface ContinuousOrientedCurve2D
transform
in interface Contour2D
transform
in interface OrientedCurve2D
transform
in interface Shape2D
trans
 an affine transform
public java.awt.geom.GeneralPath appendPath(java.awt.geom.GeneralPath path)
ContinuousCurve2D
appendPath
in interface ContinuousCurve2D
path
 a path to modify
public boolean almostEquals(GeometricObject2D obj, double eps)
GeometricObject2D
almostEquals
in interface GeometricObject2D
obj
 the object to compareeps
 a threshold value, for example the minimal coordinate difference
public boolean equals(java.lang.Object object)
equals
in class java.lang.Object
public LinearRing2D clone()
Curve2D
clone
in interface Curve2D
clone
in class AbstractContinuousCurve2D


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