djfractal
Class FastFractalComputer

java.lang.Object
  djfractal.AbstractFractalComputer
      djfractal.FastFractalComputer

All Implemented Interfaces:

FractalComputer, java.io.Serializable

public class FastFractalComputer

extends AbstractFractalComputer

Fast implementation of the FractalComputer interface using raw doubles.

See Also:

FractalComputer, Serialized Form

Field Summary

Fields inherited from class djfractal.AbstractFractalComputer

bounds, colors, scale, verbose

Constructor Summary

FastFractalComputer()

Method Summary

void	_init(int iterations, java.math.BigDecimal bailout)
protected int	calculate(java.math.BigDecimal cr, java.math.BigDecimal ci)
static void	main(java.lang.String[] args)
protected void	subRegion(int startX, int startY, int subRegionWidth, int subRegionHeight, int offsetX, int offsetY, int width, int height, FractalResult fr) Compute a subRegion of a fractal data.

Methods inherited from class djfractal.AbstractFractalComputer

calculateAll, discrepancy, init, insert, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FastFractalComputer

public FastFractalComputer()

Method Detail

_init

public void _init(int iterations,
                  java.math.BigDecimal bailout)

Specified by:

_init in class AbstractFractalComputer

subRegion

protected void subRegion(int startX,
                         int startY,
                         int subRegionWidth,
                         int subRegionHeight,
                         int offsetX,
                         int offsetY,
                         int width,
                         int height,
                         FractalResult fr)

Description copied from class: AbstractFractalComputer

Compute a subRegion of a fractal data.

This method is invoked by AbstractFractalComputer.calculateAll(FractalData fd) to prevent the computation of precomputed corners.

Specified by:

subRegion in class AbstractFractalComputer

Parameters:

startX - the X value of the point this subregion begins

startY - the Y value of the point this subregion begins

subRegionWidth - the width of the subregion

subRegionHeight - the height of the subregion

offsetX - the X offset in the fr.values array

offsetY - the Y offset in the fr.values array

width - the width of the fractal data the specified subregion belongs to

height - the height of the fractal data the specified subregion belongs to

fr - the FractalResult object to fill

calculate

protected final int calculate(java.math.BigDecimal cr,
                              java.math.BigDecimal ci)

Specified by:

calculate in class AbstractFractalComputer

main

public static void main(java.lang.String[] args)