Package org.hortonmachine.gears.io.grasslegacy.map.color

Class ColorTable

java.lang.Object

org.hortonmachine.gears.io.grasslegacy.map.color.ColorTable

Direct Known Subclasses:

GrassColorTable

public abstract class ColorTable
extends Object

A JGrass colortable.

The color table consists of a list of catagory intervals sorted by starting catagory (cat0:RR:GG:BB - cat1:RR:GG:BB).

Since:

1.1.0

Author:

Andrea Antonello - www.hydrologis.com

Field Summary

Fields

Modifier and Type	Field	Description
protected Color	backgroundColor
static byte[]	blank
protected boolean	colorTableEmpty
protected static int	FIXED_COLORMAP
protected static int	GRADIENT_COLORMAP
protected Vector<ColorRule>	rules

Constructor Summary

Constructors

Constructor	Description
ColorTable()	Creates a new instance of ColorTable

Method Summary

Modifier and Type	Method	Description
protected void	addColorRule(float cat0, int r0, int g0, int b0, float cat1, int r1, int g1, int b1)
protected void	addColorRule(int cat, int r, int g, int b)
void	createDefaultColorTable(double[] dataRange)
int	getAlpha()
byte[]	getColor(float x)
Enumeration<ColorRule>	getColorRules()
void	insertRule(float cat, ColorRule newrule)
ByteBuffer	interpolateColorMap(int mapType, ByteBuffer data, int dataOffset)	Create the buffer with the rbg colormap.
void	interpolateColorValue(ByteBuffer cmapBuffer, double cell)	Create the buffer with the rbg colormap.
void	interpolateColorValue(ByteBuffer cmapBuffer, float cell)	Create the buffer with the rbg colormap.
void	interpolateColorValue(ByteBuffer cmapBuffer, int cell)	Create the buffer with the rbg colormap.
boolean	isEmpty()
void	setBackgroundColor(Color clr)
int	size()

Methods inherited from class java.lang.Object

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

Field Detail

blank

public static final byte[] blank

backgroundColor

protected Color backgroundColor

FIXED_COLORMAP

protected static final int FIXED_COLORMAP

See Also:

Constant Field Values

GRADIENT_COLORMAP

protected static final int GRADIENT_COLORMAP

See Also:

Constant Field Values

colorTableEmpty

protected boolean colorTableEmpty

rules

protected Vector<ColorRule> rules

Constructor Detail

ColorTable

public ColorTable()

Creates a new instance of ColorTable

Method Detail

getColorRules

public Enumeration<ColorRule> getColorRules()

size

public int size()

setBackgroundColor

public void setBackgroundColor(Color clr)

isEmpty

public boolean isEmpty()

addColorRule

protected void addColorRule(int cat,
                            int r,
                            int g,
                            int b)

addColorRule

protected void addColorRule(float cat0,
                            int r0,
                            int g0,
                            int b0,
                            float cat1,
                            int r1,
                            int g1,
                            int b1)

interpolateColorMap

public ByteBuffer interpolateColorMap(int mapType,
                                      ByteBuffer data,
                                      int dataOffset)

Create the buffer with the rbg colormap.

Parameters:

mapType - - type of map, from which to understand the single value offset

data - - the buffer with the data

dataOffset - - offset to define rows

Returns:

the colormap byte buffer

interpolateColorValue

public void interpolateColorValue(ByteBuffer cmapBuffer,
                                  int cell)

Create the buffer with the rbg colormap.

interpolateColorValue

public void interpolateColorValue(ByteBuffer cmapBuffer,
                                  float cell)

Create the buffer with the rbg colormap.

interpolateColorValue

public void interpolateColorValue(ByteBuffer cmapBuffer,
                                  double cell)

Create the buffer with the rbg colormap.

insertRule

public void insertRule(float cat,
                       ColorRule newrule)

getColor

public byte[] getColor(float x)

createDefaultColorTable

public void createDefaultColorTable(double[] dataRange)

getAlpha

public int getAlpha()