Package org.evoludo.simulator

Class ColorMap3D

Object

ColorMap<MeshLambertMaterial>

ColorMap3D

public abstract class ColorMap3D
extends ColorMap<MeshLambertMaterial>

Coloring3D is a wrapper class for different schemes to map data onto colors for 3D visualization using WebGL. Each inner class implements the ColorMap interface to provide an implementation agnostic manner to translate data into colors.

The following color mappings are currently available:

Index

Associates integer indices with colors.

Gradient1D

One dimensional color gradient spanning two or more colors.

Hue

Special case of Gradient1D where the gradient follows the color hue.

Gradient2D

Two dimensional gradient with each dimension represented by one color.

GradientND

Multi-dimensional gradient spanned by an identical number of colors

Important: the Parallax library provides access to WebGL technology directly from GWT. The following code is compliant with Parallax version 1.6. Unfortunately, colors are handled differently in the two frameworks. In particular, java.awt.Color and thothbot.parallax.core.shared.math.Color are incompatible. In the following any reference to Color refers to the WebGL version, while references to regular java Color's use the fully qualified name, java.awt.Color.

Author:

Christoph Hauert

See Also:

• Github: Parallax, Java 3D SDK

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ColorMap3D.Gradient1D	One dimensional color gradient spanning two or more colors
static class	ColorMap3D.Gradient2D	Two dimensional color gradient with one color for each dimension.
static class	ColorMap3D.GradientND	N dimensional color gradient with one color for each dimension.
static class	ColorMap3D.Hue	Color gradient following the hue.
static class	ColorMap3D.Index	Associates integer indices with colors.

Nested classes/interfaces inherited from class ColorMap

ColorMap.Gradient<T>

Field Summary

Fields

Modifier and Type	Field	Description
static final Color	BLACK	The color black.
static final Color	DIRECTED	The baseline color of directed links.
static final Color	DIRECTED_DST	The color of directed links at the destination.
static final Color	DIRECTED_SRC	The color of directed links at the origin.
private static final double	FACTOR	Helper constant: the factor to derive darker shades of a color.
static final Color	UNDIRECTED	The color of undirected links.

Fields inherited from class ColorMap

INV255

Constructor Summary

Constructors

Constructor	Description
ColorMap3D()	Constructs a new color map.

Method Summary

Modifier and Type	Method	Description
static Color	Color2Color(double r, double g, double b)	Convert red, green, blue to a WebGL Color object.
static Color	Color2Color(Color color)	Convert a java.awt.Color object to a Color object.
static MeshLambertMaterial	Color2Material(double r, double g, double b, double a)	Convert red, green, blue and transparency values (RGBA) to a WebGL Material object.
static MeshLambertMaterial	Color2Material(Color color)	Convert a java.awt.Color to a WebGL Material object.

Methods inherited from class ColorMap

addAlpha, addAlpha, addColors, blendColors, blendColors, color2Color, translate, translate, translate, translate, translate, translate

Methods inherited from class Object

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

Field Details

BLACK

public static final Color BLACK

The color black.

UNDIRECTED

public static final Color UNDIRECTED

The color of undirected links.

DIRECTED

public static final Color DIRECTED

The baseline color of directed links.

DIRECTED_SRC

public static final Color DIRECTED_SRC

The color of directed links at the origin.

DIRECTED_DST

public static final Color DIRECTED_DST

The color of directed links at the destination.

FACTOR

private static final double FACTOR

Helper constant: the factor to derive darker shades of a color.

See Also:

• Color
• Constant Field Values

Constructor Details

ColorMap3D

public ColorMap3D()

Constructs a new color map.

Method Details

Color2Color

public static Color Color2Color(Color color)

Convert a java.awt.Color object to a Color object.

Parameters:

color - the java.awt.Color

Returns:

the corresponding thothbot.parallax.core.shared.math.Color

Color2Color

public static Color Color2Color(double r,
 double g,
 double b)

Convert red, green, blue to a WebGL Color object.

Parameters:

r - the red component of the color in [0.0, 1.0]

g - the green component of the color in [0.0, 1.0]

b - the blue component of the color in [0.0, 1.0]

Returns:

the corresponding thothbot.parallax.core.shared.math.Color object

Color2Material

public static MeshLambertMaterial Color2Material(double r,
 double g,
 double b,
 double a)

Convert red, green, blue and transparency values (RGBA) to a WebGL Material object.

Parameters:

r - the red component of the color in [0.0, 1.0]

g - the green component of the color in [0.0, 1.0]

b - the blue component of the color in [0.0, 1.0]

a - the transparency (alpha) component of the color in [0.0, 1.0]

Returns:

the Material object for non-shiny surfaces representing the RGB value with transparency (if applicable)

See Also:

• Color.darker()

Color2Material

public static MeshLambertMaterial Color2Material(Color color)

Convert a java.awt.Color to a WebGL Material object. In order to enhance 3D effects the ambient color is set to color.darker().

Parameters:

color - the java.awt.Color

Returns:

the Material object for non-shiny surfaces with color and transparency (if applicable)