Package org.opensourcephysics.display

Class ByteImage

java.lang.Object

org.opensourcephysics.display.ByteImage

All Implemented Interfaces:

Drawable, Measurable

public class ByteImage
extends java.lang.Object
implements Measurable

A ByteImage contains an array of bytes int[row][col] where each integer represents an image pixel. The row index determines the y-location of the pixel and the col index determines the x-location in the drawing panel.

Constructor Summary

Constructors

Constructor	Description
ByteImage(byte[][] data)	Constructs ByteImage with the given data.
ByteImage(java.awt.image.ColorModel colorModel, byte[][] data)	Constructs IntegerImage with the given ColorModel and data.

Method Summary

Modifier and Type	Method	Description
void	draw(DrawingPanel panel, java.awt.Graphics g)	Draws the image.
static ByteImage	getBinaryImage(byte[][] data)	Gets a two-color ByteImage with 0 -> red and 1 -> blue.
static ByteImage	getColorImage(java.awt.Color[] colors, byte[][] data)
double	getXMax()	Gets the maximum x needed to draw this object.
double	getXMin()	Gets the minimum x needed to draw this object.
double	getYMax()	Gets the maximum y needed to draw this object.
double	getYMin()	Gets the minimum y needed to draw this object.
boolean	isMeasured()	Determines if information is available to set min/max values.
void	setBlock(int row_offset, int col_offset, byte[][] val)	Sets an offset block to new values.
void	setCell(int row, int col, byte val)	Sets a cell to a new value.
void	setCol(int col, byte[] val)	Sets a column to new values.
void	setMinMax(double _xmin, double _xmax, double _ymin, double _ymax)
void	setRow(int row, byte[] val)	Sets array elements in a row to new values.
void	setXMax(double _xmax)
void	setXMin(double _xmin)
void	setYMax(double _ymax)
void	setYMin(double _ymin)
void	updateImage(byte[][] val)	Sets new values assuming that the integer array has not changed.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteImage

public ByteImage(byte[][] data)

Constructs ByteImage with the given data.

Parameters:

data -

ByteImage

public ByteImage(java.awt.image.ColorModel colorModel,
                 byte[][] data)

Constructs IntegerImage with the given ColorModel and data.

Parameters:

colorModel -

data -

Method Detail

getBinaryImage

public static ByteImage getBinaryImage(byte[][] data)

Gets a two-color ByteImage with 0 -> red and 1 -> blue.

getColorImage

public static ByteImage getColorImage(java.awt.Color[] colors,
                                      byte[][] data)

updateImage

public void updateImage(byte[][] val)

Sets new values assuming that the integer array has not changed.

Parameters:

val -

setBlock

public void setBlock(int row_offset,
                     int col_offset,
                     byte[][] val)

Sets an offset block to new values.

Parameters:

row_offset -

col_offset -

val -

setRow

public void setRow(int row,
                   byte[] val)

Sets array elements in a row to new values.

Parameters:

row -

val -

setCol

public void setCol(int col,
                   byte[] val)

Sets a column to new values.

Parameters:

col -

val -

setCell

public void setCell(int row,
                    int col,
                    byte val)

Sets a cell to a new value.

draw

public void draw(DrawingPanel panel,
                 java.awt.Graphics g)

Draws the image.

Specified by:

draw in interface Drawable

Parameters:

panel -

g -

isMeasured

public boolean isMeasured()

Description copied from interface: Measurable

Determines if information is available to set min/max values. Objects that store data should return false if data is null.

Specified by:

isMeasured in interface Measurable

Returns:

true if min/max values are valid

getXMin

public double getXMin()

Description copied from interface: Measurable

Gets the minimum x needed to draw this object.

Specified by:

getXMin in interface Measurable

Returns:

minimum

getXMax

public double getXMax()

Description copied from interface: Measurable

Gets the maximum x needed to draw this object.

Specified by:

getXMax in interface Measurable

Returns:

maximum

getYMin

public double getYMin()

Description copied from interface: Measurable

Gets the minimum y needed to draw this object.

Specified by:

getYMin in interface Measurable

Returns:

minimum

getYMax

public double getYMax()

Description copied from interface: Measurable

Gets the maximum y needed to draw this object.

Specified by:

getYMax in interface Measurable

Returns:

minimum

setXMin

public void setXMin(double _xmin)

setXMax

public void setXMax(double _xmax)

setYMin

public void setYMin(double _ymin)

setYMax

public void setYMax(double _ymax)

setMinMax

public void setMinMax(double _xmin,
                      double _xmax,
                      double _ymin,
                      double _ymax)