Package org.opensourcephysics.display2d

Class CellLattice

java.lang.Object

org.opensourcephysics.display2d.CellLattice

All Implemented Interfaces:

Drawable, Measurable, ByteLattice

public class CellLattice
extends java.lang.Object
implements ByteLattice

A CellLattice that displays 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. The lattice is drawn as an array of rectangles to distinguish between the two possible values.

Constructor Summary

Constructors

Constructor	Description
CellLattice()	Constructor CellLattice
CellLattice(int nx, int ny)	Constructor CellLattice

Method Summary

Modifier and Type	Method	Description
void	createDefaultColors()	Creates the default palette.
SiteLattice	createSiteLattice()	Creates a new SiteLattice containing the same data as this lattice.
void	draw(DrawingPanel panel, java.awt.Graphics g)	Draws a representation of an object in a drawing panel.
int	getNx()	Gets the number of x entries.
int	getNy()	Gets the number of y entries.
byte	getValue(int ix, int iy)	Gets a value from the given location.
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.
int	indexFromPoint(double x, double y)	Determines the lattice index (row-major order) from given x and y world coordinates.
boolean	isMeasured()	Determines if information is available to set min/max values.
void	randomize()	Randomizes the values.
void	resizeLattice(int nx, int ny)	Resizes the lattice.
void	setAll(byte[][] val, double xmin, double xmax, double ymin, double ymax)	Sets the lattice values and scale.
void	setBlock(byte[][] val)	Sets a block of data starting at (0,0) to new values.
void	setBlock(int ix_offset, int iy_offset, byte[][] val)	Sets a block of data to new values.
void	setBlock(int ix_offset, int iy_offset, int[][] val)	Sets a block of cells using integer values.
void	setCol(int ix, int iy_offset, byte[] val)	Sets a column to new values.
void	setColorPalette(java.awt.Color[] colors)	Sets the color palette.
void	setGridLineColor(java.awt.Color c)	Sets the color for grid line boundaries
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)	Assigns a scale to the lattice in world units.
void	setRow(int iy, int ix_offset, byte[] val)	Sets a row to new values.
void	setShowGridLines(boolean show)	Outlines the lattice boundaries with a grid.
void	setValue(int ix, int iy, byte val)	Sets the given x,y location to a value.
void	setVisible(boolean isVisible)	Sets the visibility of the lattice.
void	setXMax(double xmax)	Sets xmax.
void	setXMin(double xmin)	Sets xmin.
void	setYMax(double ymax)	Sets ymax.
void	setYMin(double ymin)	Sets ymin.
javax.swing.JFrame	showLegend()	Shows the color associated with each value.
int	xToIndex(double x)	Gets closest index from the given x world coordinate.
int	yToIndex(double y)	Gets closest index from the given y world coordinate.

Methods inherited from class java.lang.Object

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

Constructor Detail

CellLattice

public CellLattice()

Constructor CellLattice

CellLattice

public CellLattice(int nx,
                   int ny)

Constructor CellLattice

Parameters:

nx -

ny -

Method Detail

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

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

draw

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

Description copied from interface: Drawable

Draws a representation of an object in a drawing panel.

Specified by:

draw in interface Drawable

getNx

public int getNx()

Description copied from interface: ByteLattice

Gets the number of x entries.

Specified by:

getNx in interface ByteLattice

Returns:

nx

getNy

public int getNy()

Description copied from interface: ByteLattice

Gets the number of y entries.

Specified by:

getNy in interface ByteLattice

Returns:

ny

indexFromPoint

public int indexFromPoint(double x,
                          double y)

Description copied from interface: ByteLattice

Determines the lattice index (row-major order) from given x and y world coordinates. Returns -1 if the world coordinates are outside the lattice.

Specified by:

indexFromPoint in interface ByteLattice

Returns:

index

xToIndex

public int xToIndex(double x)

Description copied from interface: ByteLattice

Gets closest index from the given x world coordinate.

Specified by:

xToIndex in interface ByteLattice

Parameters:

x - double the coordinate

Returns:

int the index

yToIndex

public int yToIndex(double y)

Description copied from interface: ByteLattice

Gets closest index from the given y world coordinate.

Specified by:

yToIndex in interface ByteLattice

Parameters:

y - double the coordinate

Returns:

int the index

getValue

public byte getValue(int ix,
                     int iy)

Description copied from interface: ByteLattice

Gets a value from the given location.

Specified by:

getValue in interface ByteLattice

Returns:

the value.

setValue

public void setValue(int ix,
                     int iy,
                     byte val)

Description copied from interface: ByteLattice

Sets the given x,y location to a value.

Specified by:

setValue in interface ByteLattice

randomize

public void randomize()

Description copied from interface: ByteLattice

Randomizes the values.

Specified by:

randomize in interface ByteLattice

resizeLattice

public void resizeLattice(int nx,
                          int ny)

Description copied from interface: ByteLattice

Resizes the lattice.

Specified by:

resizeLattice in interface ByteLattice

setAll

public void setAll(byte[][] val,
                   double xmin,
                   double xmax,
                   double ymin,
                   double ymax)

Sets the lattice values and scale. The lattice is resized to fit the new data if needed.

Specified by:

setAll in interface ByteLattice

Parameters:

val - int[][] the new values

xmin - double

xmax - double

ymin - double

ymax - double

setBlock

public void setBlock(int ix_offset,
                     int iy_offset,
                     byte[][] val)

Description copied from interface: ByteLattice

Sets a block of data to new values.

Specified by:

setBlock in interface ByteLattice

Parameters:

ix_offset - the x offset into the lattice

iy_offset - the y offset into the lattice

setBlock

public void setBlock(byte[][] val)

Description copied from interface: ByteLattice

Sets a block of data starting at (0,0) to new values.

Specified by:

setBlock in interface ByteLattice

setCol

public void setCol(int ix,
                   int iy_offset,
                   byte[] val)

Description copied from interface: ByteLattice

Sets a column to new values.

Specified by:

setCol in interface ByteLattice

Parameters:

ix - the x index of the column

iy_offset - the y offset in the column

val - values in column

setRow

public void setRow(int iy,
                   int ix_offset,
                   byte[] val)

Description copied from interface: ByteLattice

Sets a row to new values.

Specified by:

setRow in interface ByteLattice

Parameters:

iy - the y index of the row

ix_offset - the x offset in the row

setShowGridLines

public void setShowGridLines(boolean show)

Description copied from interface: ByteLattice

Outlines the lattice boundaries with a grid.

Specified by:

setShowGridLines in interface ByteLattice

setGridLineColor

public void setGridLineColor(java.awt.Color c)

Description copied from interface: ByteLattice

Sets the color for grid line boundaries

Specified by:

setGridLineColor in interface ByteLattice

showLegend

public javax.swing.JFrame showLegend()

Description copied from interface: ByteLattice

Shows the color associated with each value.

Specified by:

showLegend in interface ByteLattice

Returns:

the JFrame containing the legend

setVisible

public void setVisible(boolean isVisible)

Description copied from interface: ByteLattice

Sets the visibility of the lattice. Drawing will be disabled if visible is false.

Specified by:

setVisible in interface ByteLattice

setColorPalette

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

Description copied from interface: ByteLattice

Sets the color palette.

Specified by:

setColorPalette in interface ByteLattice

setIndexedColor

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

Description copied from interface: ByteLattice

Sets the color for a single index.

Specified by:

setIndexedColor in interface ByteLattice

setMinMax

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

Description copied from interface: ByteLattice

Assigns a scale to the lattice in world units. This method does not change lattice values; it assigns units corners of the lattice.

Specified by:

setMinMax in interface ByteLattice

createSiteLattice

public SiteLattice createSiteLattice()

Creates a new SiteLattice containing the same data as this lattice.

setBlock

public void setBlock(int ix_offset,
                     int iy_offset,
                     int[][] val)

Sets a block of cells using integer values.

Parameters:

ix_offset - int

iy_offset - int

val - int[][]

setXMin

public void setXMin(double xmin)

Description copied from interface: ByteLattice

Sets xmin.

Specified by:

setXMin in interface ByteLattice

Parameters:

xmin - double

setXMax

public void setXMax(double xmax)

Description copied from interface: ByteLattice

Sets xmax.

Specified by:

setXMax in interface ByteLattice

Parameters:

xmax - double

setYMin

public void setYMin(double ymin)

Description copied from interface: ByteLattice

Sets ymin.

Specified by:

setYMin in interface ByteLattice

Parameters:

ymin - double

setYMax

public void setYMax(double ymax)

Description copied from interface: ByteLattice

Sets ymax.

Specified by:

setYMax in interface ByteLattice

Parameters:

ymax - double

createDefaultColors

public void createDefaultColors()

Description copied from interface: ByteLattice

Creates the default palette.

Specified by:

createDefaultColors in interface ByteLattice