Package org.opensourcephysics.display2d

Class TriangularByteLattice

java.lang.Object

org.opensourcephysics.display2d.TriangularByteLattice

All Implemented Interfaces:

Drawable, Measurable

public class TriangularByteLattice
extends java.lang.Object
implements Measurable

A TriangularByteLattice is an array where each array element can assume one of 256 values. Values can be set between -128 and 127. Because byte values larger than 127 overflow to negative, values can also be set between 0 and 255.

Constructor Summary

Constructors

Constructor	Description
TriangularByteLattice(int _row, int _col)	Constructs a byte lattice with the given size.

Method Summary

Modifier and Type	Method	Description
void	createDefaultColors()
void	draw(DrawingPanel panel, java.awt.Graphics g)	Draws the lattice.
int	getCell(int row, int col)	Gets a lattice cell value.
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	randomize()	Ranomizes the lattice values.
void	resizeLattice(int _row, int _col)
void	setBlock(int row_offset, int col_offset, byte[][] val)	Sets a block of cells to new values.
void	setBlock(int row_offset, int col_offset, int[][] val)	Sets a block of cells to new values.
void	setCell(int row, int col, byte val)	Sets a lattice cell to a new value.
void	setCol(int row_offset, int col, byte[] val)	Sets a column of cells to new values.
void	setColorPalette(java.awt.Color[] colors)	Sets the color palette.
void	setIndexedColor(int i, java.awt.Color color)	Sets the color for a single index.
void	setMinMax(double xmin, double xmax, double ymin, double ymax)
void	setRow(int row, int col_offset, byte[] val)	Sets a row of cells to new values.
void	setVisible(boolean _vis)
void	showLegend()	Shows the color associated with each value.

Methods inherited from class java.lang.Object

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

Constructor Detail

TriangularByteLattice

public TriangularByteLattice(int _row,
                             int _col)

Constructs a byte lattice with the given size. Cell values are -128 to 127.

Parameters:

_row - the number of rows

_col - the number of columns

Method Detail

resizeLattice

public void resizeLattice(int _row,
                          int _col)

setVisible

public void setVisible(boolean _vis)

setMinMax

public void setMinMax(double xmin,
                      double xmax,
                      double ymin,
                      double ymax)

draw

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

Draws the lattice.

Specified by:

draw in interface Drawable

Parameters:

panel -

g -

setBlock

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

Sets a block of cells to new values.

Parameters:

row_offset -

col_offset -

val -

setBlock

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

Sets a block of cells to new values.

Parameters:

row_offset -

col_offset -

val -

setCol

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

Sets a column of cells to new values.

Parameters:

row_offset -

col -

val -

setRow

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

Sets a row of cells to new values.

Parameters:

row -

col_offset -

val -

setCell

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

Sets a lattice cell to a new value.

Parameters:

row -

col -

val -

getCell

public int getCell(int row,
                   int col)

Gets a lattice cell value.

Parameters:

row -

col -

Returns:

the cell value.

randomize

public void randomize()

Ranomizes the lattice values.

showLegend

public void showLegend()

Shows the color associated with each value.

setColorPalette

public void setColorPalette(java.awt.Color[] colors)

Sets the color palette.

Parameters:

colors -

setIndexedColor

public void setIndexedColor(int i,
                            java.awt.Color color)

Sets the color for a single index.

Parameters:

i -

color -

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

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

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

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

createDefaultColors

public void createDefaultColors()