math.geom2d.polygon
Class HRectangle2D

Package class diagram package HRectangle2D
java.lang.Object
  extended by java.awt.geom.RectangularShape
      extended by java.awt.geom.Rectangle2D
          extended by java.awt.geom.Rectangle2D.Double
              extended by math.geom2d.polygon.HRectangle2D
All Implemented Interfaces:
Shape, Serializable, Cloneable, CirculinearDomain2D, CirculinearShape2D, Domain2D, Polygon2D, Shape2D

public class HRectangle2D
extends Rectangle2D.Double
implements Polygon2D

HRectangle2D defines a rectangle with edges parallel to main axis. Thus, it can not be rotated, contrary to Rectangle2D. This class is actually simply a wrapper of class java.awt.geom.Rectangle2D.Double with interface AbstractPolygon.

See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class java.awt.geom.Rectangle2D
Rectangle2D.Double, Rectangle2D.Float
 
Field Summary
 
Fields inherited from class java.awt.geom.Rectangle2D.Double
height, width, x, y
 
Fields inherited from class java.awt.geom.Rectangle2D
OUT_BOTTOM, OUT_LEFT, OUT_RIGHT, OUT_TOP
 
Fields inherited from interface math.geom2d.Shape2D
ACCURACY
 
Constructor Summary
HRectangle2D()
          Empty constructor (size and position zero)
HRectangle2D(double x0, double y0, double w, double h)
          Main constructor
HRectangle2D(Point2D point, double w, double h)
          Main constructor
HRectangle2D(Rectangle2D rect)
          Constructor from awt, to allow easy construction from existing apps.
 
Method Summary
 Domain2D clip(Box2D box)
          Returns the clipping of the rectangle, as an instance of HRectangle2D.
 Polygon2D complement()
          Returns the complementary polygon.
 void draw(Graphics2D g2)
          Draw the shape on the given graphics.
 boolean equals(Object obj)
          Test if rectangles are the same.
 void fill(Graphics2D g2)
          Fills the interior of the domain, using the Graphics current Paint.
 CirculinearBoundarySet2D<LinearRing2D> getBoundary()
          Returns the boundary of the set.
 Box2D getBoundingBox()
          Returns the bounding box of the shape.
 CirculinearDomain2D getBuffer(double dist)
          Computes the buffer of the shape, formed by the set of points located at a distance from the shape that is lower or equal to d.
 double getDistance(double x, double y)
          get the distance of the shape to the given point, specified by x and y, or the distance of point to the frontier of the shape in the case of a plain (i.e.
 double getDistance(Point2D p)
          get the distance of the shape to the given point, or the distance of point to the frontier of the shape in the case of a plain shape.
 int getEdgeNumber()
          Returns the number of edges of the polygon
 Collection<LineSegment2D> getEdges()
          Return the edges as line segments of the polygon
 Collection<LinearRing2D> getRings()
          Returns the set of rings comprising the boundary of this polygon.
 double getSignedDistance(double x, double y)
          Get the signed distance of the shape 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.
 double getSignedDistance(Point2D p)
          Get the signed distance of the shape 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.
 Point2D getVertex(int i)
          Returns the i-th vertex of the polygon.
 int getVertexNumber()
          Returns the number of vertex, which is 4.
 Collection<Point2D> getVertices()
          Returns the vertices (singular points) of the polygon
 boolean isBounded()
          Always returns true, because a rectangle is always bounded.
 SimplePolygon2D transform(AffineTransform2D trans)
          Return the new Polygon created by an affine transform of this polygon.
 CirculinearDomain2D transform(CircleInversion2D inv)
          Transforms the shape by a circle inversion.
 
Methods inherited from class java.awt.geom.Rectangle2D.Double
createIntersection, createUnion, getBounds2D, getHeight, getWidth, getX, getY, isEmpty, outcode, setRect, setRect, toString
 
Methods inherited from class java.awt.geom.Rectangle2D
add, add, add, contains, contains, getPathIterator, getPathIterator, hashCode, intersect, intersects, intersectsLine, intersectsLine, outcode, setFrame, union
 
Methods inherited from class java.awt.geom.RectangularShape
clone, contains, contains, getBounds, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface math.geom2d.Shape2D
contains, contains, isEmpty
 

Constructor Detail

HRectangle2D

public HRectangle2D(double x0,
                    double y0,
                    double w,
                    double h)
Main constructor


HRectangle2D

public HRectangle2D()
Empty constructor (size and position zero)


HRectangle2D

public HRectangle2D(Rectangle2D rect)
Constructor from awt, to allow easy construction from existing apps.


HRectangle2D

public HRectangle2D(Point2D point,
                    double w,
                    double h)
Main constructor

Method Detail

isBounded

public boolean isBounded()
Always returns true, because a rectangle is always bounded.

Specified by:
isBounded in interface Shape2D

getVertices

public Collection<Point2D> getVertices()
Description copied from interface: Polygon2D
Returns the vertices (singular points) of the polygon

Specified by:
getVertices in interface Polygon2D

getVertex

public Point2D getVertex(int i)
Returns the i-th vertex of the polygon.

Specified by:
getVertex in interface Polygon2D
Parameters:
i - index of the vertex, between 0 and 3

getVertexNumber

public int getVertexNumber()
Returns the number of vertex, which is 4.

Specified by:
getVertexNumber in interface Polygon2D
Since:
0.6.3

getEdges

public Collection<LineSegment2D> getEdges()
Description copied from interface: Polygon2D
Return the edges as line segments of the polygon

Specified by:
getEdges in interface Polygon2D

getEdgeNumber

public int getEdgeNumber()
Description copied from interface: Polygon2D
Returns the number of edges of the polygon

Specified by:
getEdgeNumber in interface Polygon2D

getRings

public Collection<LinearRing2D> getRings()
Description copied from interface: Polygon2D
Returns the set of rings comprising the boundary of this polygon.

Specified by:
getRings in interface Polygon2D
Returns:
the set of boundary rings.

transform

public CirculinearDomain2D transform(CircleInversion2D inv)
Description copied from interface: CirculinearShape2D
Transforms the shape by a circle inversion. The result is still an instance a CirculinearShape2D.

Specified by:
transform in interface CirculinearDomain2D
Specified by:
transform in interface CirculinearShape2D
Parameters:
inv - the circle inversion
Returns:
the transformed shape

getBuffer

public CirculinearDomain2D getBuffer(double dist)
Description copied from interface: CirculinearShape2D
Computes the buffer of the shape, formed by the set of points located at a distance from the shape that is lower or equal to d.

Specified by:
getBuffer in interface CirculinearShape2D
Parameters:
dist - the maximal distance between a point of the buffer and the shape
Returns:
the buffer of the shape

getBoundary

public CirculinearBoundarySet2D<LinearRing2D> getBoundary()
Description copied from interface: Domain2D
Returns the boundary of the set. This boundary is either a continuous non intersecting curve (connected domain), or a set of non intersecting continuous curve (one continuous non-intersection for each connected part of the domain).

The returned curve is oriented, with an interior and an exterior.

Specified by:
getBoundary in interface CirculinearDomain2D
Specified by:
getBoundary in interface Domain2D
Specified by:
getBoundary in interface Polygon2D
Returns:
the boundary of the domain

complement

public Polygon2D complement()
Description copied from interface: Polygon2D
Returns the complementary polygon.

Specified by:
complement in interface Domain2D
Specified by:
complement in interface Polygon2D
Returns:
the polygon complementary to this

getDistance

public double getDistance(Point2D p)
Description copied from interface: Shape2D
get the distance of the shape to the given point, or the distance of point to the frontier of the shape in the case of a plain shape.

Specified by:
getDistance in interface Shape2D

getDistance

public double getDistance(double x,
                          double y)
Description copied from interface: Shape2D
get the distance of the shape to the given point, specified by x and y, or the distance of point to the frontier of the shape in the case of a plain (i.e. fillable) shape.

Specified by:
getDistance in interface Shape2D

getSignedDistance

public double getSignedDistance(Point2D p)
Get the signed distance of the shape 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.


getSignedDistance

public double getSignedDistance(double x,
                                double y)
Get the signed distance of the shape 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.


clip

public Domain2D clip(Box2D box)
Returns the clipping of the rectangle, as an instance of HRectangle2D. If rectangle is outside clipping box, returns an instance of HRectangle with 0 width and height.

Specified by:
clip in interface Domain2D
Specified by:
clip in interface Shape2D
Parameters:
box - the clipping box
Returns:
the clipped shape

draw

public void draw(Graphics2D g2)
Description copied from interface: Shape2D
Draw the shape on the given graphics. If the shape is empty, nothing is drawn. If the shape is unbounded, an exception is thrown.

Specified by:
draw in interface Domain2D
Specified by:
draw in interface Shape2D
Parameters:
g2 - the Graphics to draw on

fill

public void fill(Graphics2D g2)
Description copied from interface: Domain2D
Fills the interior of the domain, using the Graphics current Paint.

Specified by:
fill in interface Domain2D
Parameters:
g2 - the Graphics to fill on

getBoundingBox

public Box2D getBoundingBox()
Description copied from interface: Shape2D
Returns the bounding box of the shape.

Specified by:
getBoundingBox in interface Shape2D
Returns:
the bounding box of the shape.

equals

public boolean equals(Object obj)
Test if rectangles are the same. We consider two rectangles are equal if their corners are the same. Then, we can have different origins and different angles, but equal rectangles.

Overrides:
equals in class Rectangle2D

transform

public SimplePolygon2D transform(AffineTransform2D trans)
Return the new Polygon created by an affine transform of this polygon.

Specified by:
transform in interface Domain2D
Specified by:
transform in interface Polygon2D
Specified by:
transform in interface Shape2D
Parameters:
trans - an affine transform
Returns:
the transformed shape


Copyright © 2015 AMIS research group, Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic. All Rights Reserved.