Package net.paulhertz.pixelaudio

Class MultiGen

java.lang.Object

net.paulhertz.pixelaudio.PixelMapGen

net.paulhertz.pixelaudio.MultiGen

public class MultiGen
extends PixelMapGen

A PixelMapGen child class that combines multiple PixelMapGen instances with a single signal path. The signal path is not necessarily continuous over a 4-connected grid, i.e., the bitmap used by a PixelAudioMapper instance initialized with a MultiGen, but it may be.

Field Summary

Fields

Modifier and Type	Field	Description
int	columns
static final String	description
ArrayList<PixelMapGen>	genList
ArrayList<int[]>	offsetList
int	rows

Fields inherited from class net.paulhertz.pixelaudio.PixelMapGen

coords, flipx, flipy, fx270, fx90, h, nada, pixelMap, r180, r270, r90, sampleMap, size, transArray, transformType, w

Constructor Summary

Constructors

Constructor	Description
MultiGen(int width, int height)
MultiGen(int width, int height, int rows, int columns, ArrayList<PixelMapGen> genList)
MultiGen(int width, int height, ArrayList<int[]> offsetList, ArrayList<PixelMapGen> genList)
MultiGen(int width, int height, AffineTransformType transform)

Method Summary

Modifier and Type	Method	Description
String	describe()
int[]	generate()	Initialize this.coords, this.pixelMap, this.sampleMap.
private ArrayList<int[]>	generateCoordinates()	Generically-named method that calls the custom coordinate generation method (here, generateMultiCoordinates).
private ArrayList<int[]>	generateMultiCoordinates(int width, int height)	The coordinate generation method for this class.
int	getColumns()
ArrayList<PixelMapGen>	getGenList()
ArrayList<int[]>	getOffsetList()
int	getRows()
static MultiGen	hilbertZigzagLoop6x4(int genW, int genH)	This method creates a MultiGen consisting of a mix of zigzag and Hilbert curves in 6 columns and 4 rows arranged to provide a continuous loop.
ArrayList<int[]>	translateCoords(ArrayList<int[]> coordList, int tx, int ty)
boolean	validate(int width, int height)

Methods inherited from class net.paulhertz.pixelaudio.PixelMapGen

findNearestPowerOfTwoLessThan, findPowerOfTwo, getCoordinates, getCoordinatesCopy, getHeight, getInversMapFromPixelArray, getPixelMap, getPixelMapCopy, getPixelMapFromCoordinates, getSampleMap, getSampleMapCopy, getSize, getTransformType, getWidth, isPowerOfTwo, loadIndexMaps, randomTransform, setMapsFromCoords, setTransformType, transformCoords

Methods inherited from class java.lang.Object

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

Field Details

rows

public int rows

columns

public int columns

genList

public ArrayList<PixelMapGen> genList

offsetList

public ArrayList<int[]> offsetList

description

public static final String description

See Also:

• Constant Field Values

Constructor Details

MultiGen

public MultiGen(int width,
 int height,
 AffineTransformType transform)

Parameters:

width -

height -

transform -

MultiGen

public MultiGen(int width,
 int height)

MultiGen

public MultiGen(int width,
 int height,
 int rows,
 int columns,
 ArrayList<PixelMapGen> genList)

MultiGen

public MultiGen(int width,
 int height,
 ArrayList<int[]> offsetList,
 ArrayList<PixelMapGen> genList)

Method Details

describe

public String describe()

Specified by:

describe in class PixelMapGen

Returns:

A String describing the mapping generated by your class and any initialization requirements.

validate

public boolean validate(int width,
 int height)

Specified by:

validate in class PixelMapGen

Returns:

true if the width and height parameters are valid for creating a mapping with this generator, otherwise, false.

generate

public int[] generate()

Initialize this.coords, this.pixelMap, this.sampleMap.

Specified by:

generate in class PixelMapGen

Returns:

this.pixelMap, the value for PixelAudioMapper.signalToImageLUT.

generateCoordinates

private ArrayList<int[]> generateCoordinates()

Generically-named method that calls the custom coordinate generation method (here, generateMultiCoordinates). Consider putting additional initializations here, if required by your coordinate generation method, rather than in the generate() method, which will then only handle coords initialization and the built-in pixelMap and sampleMap initializations.

Returns:

An ArrayList<int[]> of bitmap coordinates in the order the signal mapping would visit them.

generateMultiCoordinates

private ArrayList<int[]> generateMultiCoordinates(int width,
 int height)

The coordinate generation method for this class. Both lookup tables are derived from the coordinate list created by this method.

Parameters:

width - width of the 2D bitmap pixel array

height - height of the 2D bitmap pixel array

Returns:

an array of coordinate pairs

translateCoords

public ArrayList<int[]> translateCoords(ArrayList<int[]> coordList,
 int tx,
 int ty)

getRows

public int getRows()

getColumns

public int getColumns()

getGenList

public ArrayList<PixelMapGen> getGenList()

getOffsetList

public ArrayList<int[]> getOffsetList()

hilbertZigzagLoop6x4

public static MultiGen hilbertZigzagLoop6x4(int genW,
 int genH)

This method creates a MultiGen consisting of a mix of zigzag and Hilbert curves in 6 columns and 4 rows arranged to provide a continuous loop.

Parameters:

genW -

genH -

Returns: