BitSetPixellator (Starjava TTOOLS API)

java.lang.Object
- uk.ac.starlink.ttools.plot.BitSetPixellator

All Implemented Interfaces:

Pixellator
```
public class BitSetPixellator
extends java.lang.Object
implements Pixellator
```
Pixellator built on a bit vector.

Since:

23 Aug 2007

Author:

Mark Taylor

Constructor Summary

Constructors
Constructor Description

BitSetPixellator(java.awt.Rectangle bounds, java.util.BitSet mask)
Constructor.

Constructors
Constructor	Description
`BitSetPixellator(java.awt.Rectangle bounds, java.util.BitSet mask)`	Constructor.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static BitSetPixellator`	`copy(Pixellator pixer)`	Creates a new pixellator with the same content as an existing one.
`java.awt.Rectangle`	`getBounds()`	Returns a copy of the bounding rectangle for this pixellator.
`int`	`getX()`	Returns the X value for the current point.
`int`	`getY()`	Returns the Y value for the current point.
`boolean`	`next()`	Moves to the next point in the sequence.
`void`	`start()`	Makes this object ready to iterate.

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

- Constructor Detail
  - BitSetPixellator
```
public BitSetPixellator(java.awt.Rectangle bounds,
                        java.util.BitSet mask)
```
    Constructor. Point (x,y) of the pixellator is represented by mask index (x-bounds.x) + bounds.width * (y-bounds.y).
    
    Parameters:
    
    bounds - bounds of this pixellator
    
    mask - bit vector with a point set for each filled in pixel
- Method Detail
  - getBounds
```
public java.awt.Rectangle getBounds()
```
    Description copied from interface: Pixellator
    
    Returns a copy of the bounding rectangle for this pixellator. All points iterated over by this object will fall within this rectangle. If this object has no points, null may be returned.
    
    Specified by:
    
    getBounds in interface Pixellator
    
    Returns:
    
    bounds
  - start
```
public void start()
```
    Description copied from interface: Pixellator
    
    Makes this object ready to iterate. Should be called before any call to Pixellator.next().
    
    Specified by:
    
    start in interface Pixellator
  - next
```
public boolean next()
```
    Description copied from interface: Pixellator
    
    Moves to the next point in the sequence. Must be called before any call to Pixellator.getX()/Pixellator.getY(). Returns value indicates whether there is a next point.
    
    Specified by:
    
    next in interface Pixellator
    
    Returns:
    
    next true iff there are more points
  - getX
```
public int getX()
```
    Description copied from interface: Pixellator
    
    Returns the X value for the current point.
    
    Specified by:
    
    getX in interface Pixellator
    
    Returns:
    
    x
  - getY
```
public int getY()
```
    Description copied from interface: Pixellator
    
    Returns the Y value for the current point.
    
    Specified by:
    
    getY in interface Pixellator
    
    Returns:
    
    y
  - copy
```
public static BitSetPixellator copy(Pixellator pixer)
```
    Creates a new pixellator with the same content as an existing one. The bounds of the new one are derived from the actual limits of the pixels in the input, so may differ from those reported by the getBounds method of the input.
    
    Parameters:
    
    pixer - pixellator to copy
    
    Returns:
    
    clone

Class BitSetPixellator

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

BitSetPixellator

Method Detail

getBounds

start

next

getX

getY

copy