BoundingBox2DFloat

java.lang.Object
- frink.graphics.BoundingBox2DFloat

```
public class BoundingBox2DFloat
extends java.lang.Object
```
This represents the bounding box of a 3-D object with float boundaries. If minX.isNaN() then this is the empty bounding box.

Author:

Alan Eliasen, eliasen@mindspring.com

Field Summary

Fields
Modifier and Type	Field and Description
`private float`	`maxX` The maximum X coordinate.
`private float`	`maxY` The maximum Y coordinate.
`private float`	`minX` The minimum X coordinate.
`private float`	`minY` The minimum Y coordinate.

Constructor Summary

Constructors
Constructor and Description
`BoundingBox2DFloat()` Public constructor to construct an empty bounding box.
`BoundingBox2DFloat(BoundingBox2DFloat orig)` Copy constructor.
`BoundingBox2DFloat(float x, float y)` Construct a zero-sized BoundingBox around a single point.
`BoundingBox2DFloat(float x1, float y1, float x2, float y2)` Construct a BoundingBox with the specified coordinates.
`BoundingBox2DFloat(Point2DFloat p)` Construct a zero-sized BoundingBox around a single point.
`BoundingBox2DFloat(Point2DFloat p1, Point2DFloat p2)` Construct a BoundingBox with the specified coordinates.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addPoint(float x, float y)` Add a point to a BoundingBox.
`void`	`addPoint(Point2DFloat p)` Add a point to a BoundingBox.
`BoundingBox2DFloat`	`expand(float expandBy)` Expands a BoundingBox2DFloat by the specified value on each side and returns a new bounding box.
`BoundingBox2DFloat`	`expand(float expandX, float expandY)` Expands a BoundingBox2DFloat by the specified value on each side and returns a new bounding box.
`BoundingBox2DFloat`	`expand(float xmin, float ymin, float xmax, float ymax)` Expands a BoundingBox2DFloat by the specified value on each side and returns a new bounding box.
`float`	`getMaxX()` Returns the maximum value of x.
`float`	`getMaxY()` Returns the maximum value of y.
`float`	`getMinX()` Returns the minimum value of x.
`float`	`getMinY()` Returns the minimum value of y.
`BoundingBox2DFloat`	`intersection(BoundingBox2DFloat b1, BoundingBox2DFloat b2)` Returns a new BoundingBox2DFloat which is the intersection of two bounding boxes.
`boolean`	`isEmpty()` Returns true if this is empty.
`boolean`	`isInside(float x, float y)` Returns true if the point is within the bounding box.
`BoundingBox2DFloat`	`scaleAround(float cx, float cy, float scale)` Scales a BoundingBox2DFloat around a point [cx, cy] and returns a new bounding box that could contain its scaled area.
`java.lang.String`	`toString()` Returns the bounding box as a human-readable string.
`static BoundingBox2DFloat`	`union(BoundingBox2DFloat b1, BoundingBox2DFloat b2)` Returns a new BoundingBox2DFloat which is the union of two bounding boxes.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - minX
```
private float minX
```
    The minimum X coordinate.
  - maxX
```
private float maxX
```
    The maximum X coordinate.
  - minY
```
private float minY
```
    The minimum Y coordinate.
  - maxY
```
private float maxY
```
    The maximum Y coordinate.
- Constructor Detail
  - BoundingBox2DFloat
```
public BoundingBox2DFloat()
```
    Public constructor to construct an empty bounding box.
  - BoundingBox2DFloat
```
public BoundingBox2DFloat(float x,
                          float y)
```
    Construct a zero-sized BoundingBox around a single point.
  - BoundingBox2DFloat
```
public BoundingBox2DFloat(BoundingBox2DFloat orig)
```
    Copy constructor. Returns a copy of the specified BoundingBox.
  - BoundingBox2DFloat
```
public BoundingBox2DFloat(Point2DFloat p)
```
    Construct a zero-sized BoundingBox around a single point.
  - BoundingBox2DFloat
```
public BoundingBox2DFloat(float x1,
                          float y1,
                          float x2,
                          float y2)
```
    Construct a BoundingBox with the specified coordinates. The constructor will take care of ordering the coordinates appropriately.
  - BoundingBox2DFloat
```
public BoundingBox2DFloat(Point2DFloat p1,
                          Point2DFloat p2)
```
    Construct a BoundingBox with the specified coordinates. The constructor will take care of ordering the coordinates appropriately.
- Method Detail
  - addPoint
```
public void addPoint(float x,
                     float y)
```
    Add a point to a BoundingBox. This expands the BoundingBox if necessary.
  - addPoint
```
public void addPoint(Point2DFloat p)
```
    Add a point to a BoundingBox. This expands the BoundingBox if necessary.
  - getMinX
```
public float getMinX()
```
    Returns the minimum value of x.
  - getMaxX
```
public float getMaxX()
```
    Returns the maximum value of x.
  - getMinY
```
public float getMinY()
```
    Returns the minimum value of y.
  - getMaxY
```
public float getMaxY()
```
    Returns the maximum value of y.
  - isEmpty
```
public boolean isEmpty()
```
    Returns true if this is empty.
  - union
```
public static BoundingBox2DFloat union(BoundingBox2DFloat b1,
                                       BoundingBox2DFloat b2)
```
    Returns a new BoundingBox2DFloat which is the union of two bounding boxes.
  - intersection
```
public BoundingBox2DFloat intersection(BoundingBox2DFloat b1,
                                       BoundingBox2DFloat b2)
```
    Returns a new BoundingBox2DFloat which is the intersection of two bounding boxes.
  - isInside
```
public boolean isInside(float x,
                        float y)
```
    Returns true if the point is within the bounding box. This can be used as a quick test.
  - toString
```
public java.lang.String toString()
```
    Returns the bounding box as a human-readable string.
    
    Overrides:
    
    toString in class java.lang.Object
  - scaleAround
```
public BoundingBox2DFloat scaleAround(float cx,
                                      float cy,
                                      float scale)
```
    Scales a BoundingBox2DFloat around a point [cx, cy] and returns a new bounding box that could contain its scaled area.
  - expand
```
public BoundingBox2DFloat expand(float expandBy)
```
    Expands a BoundingBox2DFloat by the specified value on each side and returns a new bounding box. The argument should be positive. This is useful when drawing the stroke of an outline with a symmetric brush.
  - expand
```
public BoundingBox2DFloat expand(float expandX,
                                 float expandY)
```
    Expands a BoundingBox2DFloat by the specified value on each side and returns a new bounding box. All arguments should be positive.
  - expand
```
public BoundingBox2DFloat expand(float xmin,
                                 float ymin,
                                 float xmax,
                                 float ymax)
```
    Expands a BoundingBox2DFloat by the specified value on each side and returns a new bounding box. All arguments should be positive.

Class BoundingBox2DFloat

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

minX

maxX

minY

maxY

Constructor Detail

BoundingBox2DFloat

BoundingBox2DFloat

BoundingBox2DFloat

BoundingBox2DFloat

BoundingBox2DFloat

BoundingBox2DFloat

Method Detail

addPoint

addPoint

getMinX

getMaxX

getMinY

getMaxY

isEmpty

union

intersection

isInside

toString

scaleAround

expand

expand

expand