Package org.djutils.draw.bounds

Class Bounds2d

java.lang.Object
org.djutils.draw.bounds.Bounds2d
All Implemented Interfaces:
Serializable, Iterable<Point2d>, Bounds<Bounds2d,Point2d>, Drawable<Point2d>, Drawable2d
public class Bounds2d extends Object implements Drawable2d, Bounds<Bounds2d,Point2d>
A Bounds2d stores the rectangular 2D bounds of a 2d object, or a collection of 2d objects. The Bounds2d is an immutable object.

Copyright (c) 2020-2025 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See DJUTILS License.

Author:
Alexander Verbraeck, Peter Knoppers, Wouter Schakel
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    Bounds2d(double deltaX, double deltaY)
    Constructs a new Bounds2d around the origin (0, 0).
    Bounds2d(double minX, double maxX, double minY, double maxY)
    Construct a Bounds2d by providing its lower and upper bounds in both dimensions.
    Bounds2d(Collection<Drawable2d> drawableCollection)
    Construct a Bounds2d for a Collection of Drawable2d objects.
    Bounds2d(Iterator<? extends Point2d> points)
    Construct a Bounds2d from some collection of points, finding the lowest and highest x and y coordinates.
    Bounds2d(Drawable2d drawable2d)
    Construct a Bounds2d for a Drawable2d.
    Bounds2d(Drawable2d... drawable2d)
    Construct a Bounds2d for several Drawable2d objects.
    Bounds2d(Point2d[] points)
    Construct a Bounds2d from an array of Point2d, finding the lowest and highest x and y coordinates.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    contains(double x, double y)
    Check if this Bounds2d contains a point.
    boolean
    contains(Bounds2d otherBounds)
    Check if this Bounds completely contains another Bounds.
    boolean
    contains(Point2d point)
    Check if a point is contained in this Bounds.
    boolean
    covers(double x, double y)
    Check if this Bounds2d covers a point.
    boolean
    covers(Bounds2d otherBounds)
    Check if no part of a Bounds is outside this Bounds.
    boolean
    covers(Point2d point)
    Check if this Bounds covers or touches a point.
    boolean
    disjoint(Bounds2d otherBounds)
    Return whether a Bounds is disjoint from this Bounds.
    static Iterator<Drawable2d>
    ensureHasOne(Iterator<Drawable2d> iterator)
    Verify that the iterator has something to return.
    (package private) static Drawable2d[]
    ensureHasOne(Drawable2d[] drawable2dArray)
    Verify that the array contains at least one entry.
    boolean
    equals(Object obj)
     
    Bounds2d
    getAbsoluteBounds()
    Retrieve the bounding rectangle of the object in absolute coordinates.
    double
    getArea()
    Return the area of this Bounds2d.
    double
    getMaxX()
    Return the absolute upper bound for x.
    double
    getMaxY()
    Return the absolute upper bound for y.
    double
    getMinX()
    Return the absolute lower bound for x.
    double
    getMinY()
    Return the absolute lower bound for y.
    int
    hashCode()
     
    Bounds2d
    intersection(Bounds2d otherBounds2d)
    Return the intersecting Bounds of this Bounds and another Bounds.
    boolean
    intersects(Bounds2d otherBounds2d)
    Return whether this Bounds intersects another Bounds.
    Iterator<Point2d>
    iterator()
    After version 2.3.1, the order of the points returned by the iterator of a Bounds object is documented (and changed compared with earlier versions).
    Point2d
    midPoint()
    Return the mid point of this Bounds object.
    static Iterator<Point2d>
    pointsOf(Collection<Drawable2d> drawableCollection)
    Return an iterator that will return all points of one or more Drawable2d objects.
    static Iterator<Point2d>
    pointsOf(Drawable2d... drawable2d)
    Return an iterator that will return all points of one or more Drawable objects.
    int
    size()
    Retrieve the number of points that make up the object.
    Rectangle2D
    toRectangle2D()
    Return an AWT Rectangle2D that covers the same area as this Bounds2d.
    String
    toString()
    Produce a string describing the Drawable using default conversion for the (double) coordinate values.
    String
    toString(String doubleFormat, boolean doNotIncludeClassName)
    Produce a String describing the Drawable.

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface org.djutils.draw.bounds.Bounds

    getDeltaX, getDeltaY

    Methods inherited from interface org.djutils.draw.Drawable

    getPointList, toString, toString

    Methods inherited from interface org.djutils.draw.Drawable2d

    getDimensions

    Methods inherited from interface java.lang.Iterable

    forEach, spliterator

  • Constructor Details

    • Bounds2d

      public Bounds2d(double minX, double maxX, double minY, double maxY) throws ArithmeticException, IllegalArgumentException
      Construct a Bounds2d by providing its lower and upper bounds in both dimensions.
      Parameters:
      minX - the lower bound for x
      maxX - the upper bound for x
      minY - the lower bound for y
      maxY - the upper bound for y
      Throws:
      ArithmeticException - when minX, maxX, minY, or maxY is NaN
      IllegalArgumentException - when minX > maxX, or minY > maxY

    • Bounds2d

      public Bounds2d(double deltaX, double deltaY)
      Constructs a new Bounds2d around the origin (0, 0).
      Parameters:
      deltaX - the deltaX value around the origin
      deltaY - the deltaY value around the origin
      Throws:
      ArithmeticException - when deltaX, or deltaY is NaN
      IllegalArgumentException - when deltaX < 0.0, or deltaY < 0.0

    • Bounds2d

      public Bounds2d(Iterator<? extends Point2d> points)
      Construct a Bounds2d from some collection of points, finding the lowest and highest x and y coordinates.
      Parameters:
      points - Iterator that will generate all the points for which to construct a Bounds2d
      Throws:
      NullPointerException - when points is null
      IllegalArgumentException - when the points iterator provides zero points

    • Bounds2d

      public Bounds2d(Point2d[] points)
      Construct a Bounds2d from an array of Point2d, finding the lowest and highest x and y coordinates.
      Parameters:
      points - the points to construct a Bounds2d from
      Throws:
      NullPointerException - when points is null
      IllegalArgumentException - when zero points are provided

    • Bounds2d

      public Bounds2d(Drawable2d drawable2d)
      Construct a Bounds2d for a Drawable2d.
      Parameters:
      drawable2d - any object that implements the Drawable2d interface
      Throws:
      NullPointerException - when drawable2d is null

    • Bounds2d

      public Bounds2d(Drawable2d... drawable2d)
      Construct a Bounds2d for several Drawable2d objects.
      Parameters:
      drawable2d - the Drawable2d objects
      Throws:
      NullPointerException - when the drawable2d array is null, or contains a null value
      IllegalArgumentException - when the length of the drawable2d array is 0

    • Bounds2d

      public Bounds2d(Collection<Drawable2d> drawableCollection)
      Construct a Bounds2d for a Collection of Drawable2d objects.
      Parameters:
      drawableCollection - the collection
      Throws:
      NullPointerException - when the drawableCollection is null, or contains a null value
      IllegalArgumentException - when the drawableCollection is empty

  • Method Details

    • ensureHasOne

      static Drawable2d[] ensureHasOne(Drawable2d[] drawable2dArray)
      Verify that the array contains at least one entry.
      Parameters:
      drawable2dArray - array of Drawable2d objects
      Returns:
      the array
      Throws:
      NullPointerException - when drawable2darray is null
      IllegalArgumentException - when the drawable2dArray contains 0 elements

    • pointsOf

      public static Iterator<Point2d> pointsOf(Drawable2d... drawable2d)
      Return an iterator that will return all points of one or more Drawable objects.
      Parameters:
      drawable2d - the Drawable objects
      Returns:
      iterator that will return all points of the Drawable objects
      Throws:
      NullPointerException - when drawable2d is null, or contains a null value
      IllegalArgumentException - when drawable2d is empty

    • pointsOf

      public static Iterator<Point2d> pointsOf(Collection<Drawable2d> drawableCollection)
      Return an iterator that will return all points of one or more Drawable2d objects.
      Parameters:
      drawableCollection - the collection of Drawable2d objects
      Returns:
      iterator that will return all points of the Drawable objects
      Throws:
      NullPointerException - when the drawableCollection is null, or contains a null value
      IllegalArgumentException - when the drawableCollection is empty

    • ensureHasOne

      public static Iterator<Drawable2d> ensureHasOne(Iterator<Drawable2d> iterator)
      Verify that the iterator has something to return.
      Parameters:
      iterator - the iterator
      Returns:
      the iterator
      Throws:
      NullPointerException - when the iterator is null
      IllegalArgumentException - when the hasNext method of the iterator returns false before even one Drawable2d was delivered

    • iterator

      public Iterator<Point2d> iterator()
      After version 2.3.1, the order of the points returned by the iterator of a Bounds object is documented (and changed compared with earlier versions). The returned points now form a Hamiltonian circuit through all the vertices of the bounding box, all steps follow an edge (in the 3D case, not all edges are visited).
      Specified by:
      iterator in interface Bounds<Bounds2d,Point2d>
      Specified by:
      iterator in interface Iterable<Point2d>

    • size

      public int size()
      Description copied from interface: Drawable
      Retrieve the number of points that make up the object.
      Specified by:
      size in interface Drawable<Point2d>
      Returns:
      the number of points that make up the object

    • contains

      public boolean contains(double x, double y)
      Check if this Bounds2d contains a point. Contains considers a point on the border of this Bounds2d to be outside.
      Parameters:
      x - the x-coordinate of the point
      y - the y-coordinate of the point
      Returns:
      whether this Bounds2d contains the point
      Throws:
      ArithmeticException - when x, or y is NaN

    • contains

      public boolean contains(Point2d point)
      Description copied from interface: Bounds
      Check if a point is contained in this Bounds.
      Specified by:
      contains in interface Bounds<Bounds2d,Point2d>
      Parameters:
      point - the point
      Returns:
      true if the point is within this Bounds; false if the point is not within this Bounds, or on an edge of this Bounds

    • contains

      public boolean contains(Bounds2d otherBounds) throws NullPointerException
      Description copied from interface: Bounds
      Check if this Bounds completely contains another Bounds. If any point of the other Bounds lies on an edge (2d) or surface (3d) of this Bounds, this method returns false.
      Specified by:
      contains in interface Bounds<Bounds2d,Point2d>
      Parameters:
      otherBounds - the Bounds to check for complete containment within this Bounds.
      Returns:
      false if any point of D is on or outside one of the borders of this Bounds; true when all points of D are contained within this Bounds.
      Throws:
      NullPointerException - when otherBounds is null

    • covers

      public boolean covers(double x, double y)
      Check if this Bounds2d covers a point. Covers returns true when the point is on, or inside this Bounds2d.
      Parameters:
      x - the x-coordinate of the point
      y - the y-coordinate of the point
      Returns:
      whether this Bounds2d, including its borders, contains the point
      Throws:
      ArithmeticException - when x, or y is NaN

    • covers

      public boolean covers(Point2d point)
      Description copied from interface: Bounds
      Check if this Bounds covers or touches a point.
      Specified by:
      covers in interface Bounds<Bounds2d,Point2d>
      Parameters:
      point - the Point for which to check if it is covered/touched by this Bounds
      Returns:
      whether this Bounds covers or touches the point

    • covers

      public boolean covers(Bounds2d otherBounds)
      Description copied from interface: Bounds
      Check if no part of a Bounds is outside this Bounds. The edges/surfaces of this Bounds are considered inside.
      Specified by:
      covers in interface Bounds<Bounds2d,Point2d>
      Parameters:
      otherBounds - the Bounds for which to check if it is covered by this Bounds
      Returns:
      whether this Bounds contains the provided Bounds, including overlapping borders

    • disjoint

      public boolean disjoint(Bounds2d otherBounds)
      Description copied from interface: Bounds
      Return whether a Bounds is disjoint from this Bounds. Touching at an edge is not considered disjoint. A Bounds that completely surrounds this Bounds is not disjoint.
      Specified by:
      disjoint in interface Bounds<Bounds2d,Point2d>
      Parameters:
      otherBounds - the other Bounds
      Returns:
      true if the drawable is disjoint from this Bounds, or only touches an edge; false if any point of the other Bounds is inside this Bounds, or the other Bounds surrounds this Bounds

    • intersects

      public boolean intersects(Bounds2d otherBounds2d)
      Description copied from interface: Bounds
      Return whether this Bounds intersects another Bounds. Touching at an edge is considered intersecting.
      Specified by:
      intersects in interface Bounds<Bounds2d,Point2d>
      Parameters:
      otherBounds2d - the other Bounds
      Returns:
      whether this bounding box/rectangle intersects the other Bounds

    • intersection

      public Bounds2d intersection(Bounds2d otherBounds2d)
      Description copied from interface: Bounds
      Return the intersecting Bounds of this Bounds and another Bounds. Touching at an edge is considered intersecting. In case there is no intersection, null is returned.
      Specified by:
      intersection in interface Bounds<Bounds2d,Point2d>
      Parameters:
      otherBounds2d - the other Bounds
      Returns:
      the intersecting Bounds of this Bounds and another Bounds. Touching at the edge is not seen as intersecting. If not intersecting; null is returned

    • toRectangle2D

      public Rectangle2D toRectangle2D()
      Return an AWT Rectangle2D that covers the same area as this Bounds2d.
      Returns:
      java.awt.geom.Rectangle2D; the rectangle that covers the same area as this Bounds2d

    • getMinX

      public double getMinX()
      Description copied from interface: Bounds
      Return the absolute lower bound for x.
      Specified by:
      getMinX in interface Bounds<Bounds2d,Point2d>
      Returns:
      the absolute lower bound for x

    • getMaxX

      public double getMaxX()
      Description copied from interface: Bounds
      Return the absolute upper bound for x.
      Specified by:
      getMaxX in interface Bounds<Bounds2d,Point2d>
      Returns:
      the absolute upper bound for x

    • getMinY

      public double getMinY()
      Description copied from interface: Bounds
      Return the absolute lower bound for y.
      Specified by:
      getMinY in interface Bounds<Bounds2d,Point2d>
      Returns:
      the absolute lower bound for y

    • getMaxY

      public double getMaxY()
      Description copied from interface: Bounds
      Return the absolute upper bound for y.
      Specified by:
      getMaxY in interface Bounds<Bounds2d,Point2d>
      Returns:
      the absolute upper bound for y

    • midPoint

      public Point2d midPoint()
      Description copied from interface: Bounds
      Return the mid point of this Bounds object.
      Specified by:
      midPoint in interface Bounds<Bounds2d,Point2d>
      Returns:
      the mid point of this Bounds object

    • getArea

      public double getArea()
      Return the area of this Bounds2d.
      Returns:
      the area of this Bounds2d

    • getAbsoluteBounds

      public Bounds2d getAbsoluteBounds()
      Description copied from interface: Drawable2d
      Retrieve the bounding rectangle of the object in absolute coordinates.
      Specified by:
      getAbsoluteBounds in interface Drawable2d
      Returns:
      the bounding box of the object in absolute coordinates

    • toString

      public String toString()
      Description copied from interface: Drawable
      Produce a string describing the Drawable using default conversion for the (double) coordinate values. Regrettably, it is not allowed to provide a default implementation here.
      Specified by:
      toString in interface Drawable<Point2d>
      Overrides:
      toString in class Object
      Returns:
      a string describing the Drawable

    • toString

      public String toString(String doubleFormat, boolean doNotIncludeClassName)
      Description copied from interface: Drawable
      Produce a String describing the Drawable.
      Specified by:
      toString in interface Drawable<Point2d>
      Parameters:
      doubleFormat - a format string (something like "%6.3f") which will be used to render every coordinate value)
      doNotIncludeClassName - if true; the output of toString is not prefixed by the class name. This is useful for concatenating the textual representation of lots of Drawables (e.g. an array, or a List).
      Returns:
      textual representation of the Drawable

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object