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## com.mxgraph.util
Class mxRectangle

    java.lang.Object
      com.mxgraph.util.mxPoint
          com.mxgraph.util.mxRectangle

All Implemented Interfaces:
  Serializable, Cloneable

Direct Known Subclasses:
  mxCellState, mxGeometry

    public class mxRectangle

extends mxPoint

Implements a 2-dimensional rectangle with double precision coordinates.

See Also:
  Serialized Form

Field Summary
`protected double` | `height` Holds the width and the height.
`protected double` | `width` Holds the width and the height.

Fields inherited from class com.mxgraph.util.mxPoint
`x, y`

Constructor Summary
`mxRectangle()` Constructs a new rectangle at (0, 0) with the width and height set to 0.
`mxRectangle(double x, double y, double width, double height)` Constructs a rectangle using the given parameters.
`mxRectangle(mxRectangle rect)` Constructs a copy of the given rectangle.
`mxRectangle(Rectangle2D rect)` Constructs a copy of the given rectangle.

Method Summary
`void` | `add(mxRectangle rect)` Adds the given rectangle to this rectangle.
`Object` | `clone()` Returns a new instance of the same rectangle.
`boolean` | `contains(double x, double y)` Returns true if the given point is contained in the rectangle.
`boolean` | `equals(Object obj)` Returns true if the given object equals this rectangle.
`double` | `getCenterX()` Returns the x-coordinate of the center.
`double` | `getCenterY()` Returns the y-coordinate of the center.
`double` | `getHeight()` Returns the height of the rectangle.
`Rectangle` | `getRectangle()` Returns the bounds as a new rectangle.
`double` | `getWidth()` Returns the width of the rectangle.
`void` | `grow(double amount)` Grows the rectangle by the given amount, that is, this method subtracts the given amount from the x- and y-coordinates and adds twice the amount to the width and height.
`mxPoint` | `intersectLine(double x0, double y0, double x1, double y1)` Returns the point at which the specified point intersects the perimeter of this rectangle or null if there is no intersection.
`void` | `setHeight(double value)` Sets the height of the rectangle.
`void` | `setWidth(double value)` Sets the width of the rectangle.

Methods inherited from class com.mxgraph.util.mxPoint
`getPoint, getX, getY, setX, setY`

Methods inherited from class java.lang.Object
`finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### width

    protected double width

  Holds the width and the height. Default is 0.

### height

    protected double height

  Holds the width and the height. Default is 0.

Constructor Detail

### mxRectangle

    public mxRectangle()

  Constructs a new rectangle at (0, 0) with the width and height set to 0.

### mxRectangle

    public mxRectangle(Rectangle2D rect)

  Constructs a copy of the given rectangle.

  Parameters:
    `rect` - Rectangle to construct a copy of.

### mxRectangle

    public mxRectangle(mxRectangle rect)

  Constructs a copy of the given rectangle.

  Parameters:
    `rect` - Rectangle to construct a copy of.

### mxRectangle

    public mxRectangle(double x,
                       double y,
                       double width,
                       double height)

  Constructs a rectangle using the given parameters.

  Parameters:
    `x` - X-coordinate of the new rectangle.
    `y` - Y-coordinate of the new rectangle.
    `width` - Width of the new rectangle.
    `height` - Height of the new rectangle.

Method Detail

### getWidth

    public double getWidth()

  Returns the width of the rectangle.

  Returns:
    Returns the width.

### setWidth

    public void setWidth(double value)

  Sets the width of the rectangle.

  Parameters:
    `value` - Double that specifies the new width.

### getHeight

    public double getHeight()

  Returns the height of the rectangle.

  Returns:
    Returns the height.

### setHeight

    public void setHeight(double value)

  Sets the height of the rectangle.

  Parameters:
    `value` - Double that specifies the new height.

### add

    public void add(mxRectangle rect)

  Adds the given rectangle to this rectangle.

### getCenterX

    public double getCenterX()

  Returns the x-coordinate of the center.

  Returns:
    Returns the x-coordinate of the center.

### getCenterY

    public double getCenterY()

  Returns the y-coordinate of the center.

  Returns:
    Returns the y-coordinate of the center.

### grow

    public void grow(double amount)

  Grows the rectangle by the given amount, that is, this method subtracts the given amount from the x- and y-coordinates and adds twice the amount to the width and height.

  Parameters:
    `amount` - Amount by which the rectangle should be grown.

### contains

    public boolean contains(double x,
                            double y)

  Returns true if the given point is contained in the rectangle.

  Parameters:
    `x` - X-coordinate of the point.
    `y` - Y-coordinate of the point.
  Returns:
    Returns true if the point is contained in the rectangle.

### intersectLine

    public mxPoint intersectLine(double x0,
                                 double y0,
                                 double x1,
                                 double y1)

  Returns the point at which the specified point intersects the perimeter of this rectangle or null if there is no intersection.

  Parameters:
    `x0` - the x co-ordinate of the first point of the line
    `y0` - the y co-ordinate of the first point of the line
    `x1` - the x co-ordinate of the second point of the line
    `y1` - the y co-ordinate of the second point of the line
  Returns:
    the point at which the line intersects this rectangle, or null if there is no intersection

### getRectangle

    public Rectangle getRectangle()

  Returns the bounds as a new rectangle.

  Returns:
    Returns a new rectangle for the bounds.

### equals

    public boolean equals(Object obj)

  Returns true if the given object equals this rectangle.

  Overrides:
    `equals` in class `mxPoint`

### clone

    public Object clone()

  Returns a new instance of the same rectangle.

  Overrides:
    `clone` in class `mxPoint`

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Copyright (c) 2010 Gaudenz Alder. All rights reserved.