Package gov.nih.mipav.model.algorithms

Class ContourPlot.BarycentricGradientPaint

java.lang.Object

gov.nih.mipav.model.algorithms.ContourPlot.BarycentricGradientPaint

All Implemented Interfaces:

java.awt.Paint, java.awt.Transparency

Enclosing class:

ContourPlot

public class ContourPlot.BarycentricGradientPaint
extends java.lang.Object
implements java.awt.Paint

The BarycentricGradientPaint class provides a way to fill a Shape with a triangular color gradient. Colors are specified for the vertices of a triangle and interpolated within the triangle according to barycentric coordinates. Only areas of the filled shape that are intersecting with the triangle of this paint are colored.

This paint supports the ANTIALIASING rendering hint (RenderingHints) using a 4x multisampling approach. When enabled, the edges of the triangle will appear anti-aliased. It is recommended to disable AA when filling a triangle mesh (where triangles are adjacent), since otherwise triangle edges become visible.

Note that it is not necessary to use a triangular Shape to render a triangle. Instead a rectangle can be used as well, since only the intersecting area will be filled.

Author:

hageldave

Field Summary

Fields

Modifier and Type	Field	Description
protected java.awt.Color	color1
protected java.awt.Color	color2
protected java.awt.Color	color3
protected java.awt.geom.Point2D.Float	p1
protected java.awt.geom.Point2D.Float	p2
protected java.awt.geom.Point2D.Float	p3

Fields inherited from interface java.awt.Transparency

BITMASK, OPAQUE, TRANSLUCENT

Constructor Summary

Constructors

Constructor	Description
BarycentricGradientPaint(double x1, double y1, double x2, double y2, double x3, double y3, java.awt.Color color1, java.awt.Color color2, java.awt.Color color3)	Creates a new ContourPlot.BarycentricGradientPaint object with specified triangle vertices and vertex colors.
BarycentricGradientPaint(float[] x, float[] y, java.awt.Color color1, java.awt.Color color2, java.awt.Color color3)	Creates a new ContourPlot.BarycentricGradientPaint object with specified triangle vertices and vertex colors.
BarycentricGradientPaint(float x1, float y1, float x2, float y2, float x3, float y3, java.awt.Color color1, java.awt.Color color2, java.awt.Color color3)	Creates a new ContourPlot.BarycentricGradientPaint object with specified triangle vertices and vertex colors.
BarycentricGradientPaint(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2, java.awt.geom.Point2D p3, java.awt.Color color1, java.awt.Color color2, java.awt.Color color3)	Creates a new ContourPlot.BarycentricGradientPaint object with specified triangle vertices and vertex colors.

Method Summary

Modifier and Type	Method	Description
java.awt.PaintContext	createContext(java.awt.image.ColorModel cm, java.awt.Rectangle deviceBounds, java.awt.geom.Rectangle2D userBounds, java.awt.geom.AffineTransform xform, java.awt.RenderingHints hints)
int	getTransparency()

Methods inherited from class java.lang.Object

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

Field Detail

p1

protected java.awt.geom.Point2D.Float p1

p2

protected java.awt.geom.Point2D.Float p2

p3

protected java.awt.geom.Point2D.Float p3

color1

protected java.awt.Color color1

color2

protected java.awt.Color color2

color3

protected java.awt.Color color3

Constructor Detail

BarycentricGradientPaint

public BarycentricGradientPaint(java.awt.geom.Point2D p1,
                                java.awt.geom.Point2D p2,
                                java.awt.geom.Point2D p3,
                                java.awt.Color color1,
                                java.awt.Color color2,
                                java.awt.Color color3)

Creates a new ContourPlot.BarycentricGradientPaint object with specified triangle vertices and vertex colors.

Parameters:

p1 - vertex of triangle

p2 - vertex of triangle

p3 - vertex of triangle

color1 - color of vertex

color2 - color of vertex

color3 - color of vertex

BarycentricGradientPaint

public BarycentricGradientPaint(float[] x,
                                float[] y,
                                java.awt.Color color1,
                                java.awt.Color color2,
                                java.awt.Color color3)

Creates a new ContourPlot.BarycentricGradientPaint object with specified triangle vertices and vertex colors.

Parameters:

x - x-coordinates for the triangle vertices

y - y-coordinates for the triangle vertices

color1 - color of vertex

color2 - color of vertex

color3 - color of vertex

BarycentricGradientPaint

public BarycentricGradientPaint(double x1,
                                double y1,
                                double x2,
                                double y2,
                                double x3,
                                double y3,
                                java.awt.Color color1,
                                java.awt.Color color2,
                                java.awt.Color color3)

Creates a new ContourPlot.BarycentricGradientPaint object with specified triangle vertices and vertex colors.

Parameters:

x1 - x-coord of triangle vertex

y1 - y-coord of triangle vertex

x2 - x-coord of triangle vertex

y2 - y-coord of triangle vertex

x3 - x-coord of triangle vertex

y3 - y-coord of triangle vertex

color1 - color of vertex

color2 - color of vertex

color3 - color of vertex

BarycentricGradientPaint

public BarycentricGradientPaint(float x1,
                                float y1,
                                float x2,
                                float y2,
                                float x3,
                                float y3,
                                java.awt.Color color1,
                                java.awt.Color color2,
                                java.awt.Color color3)

Creates a new ContourPlot.BarycentricGradientPaint object with specified triangle vertices and vertex colors.

Parameters:

x1 - x-coord of triangle vertex

y1 - y-coord of triangle vertex

x2 - x-coord of triangle vertex

y2 - y-coord of triangle vertex

x3 - x-coord of triangle vertex

y3 - y-coord of triangle vertex

color1 - color of vertex

color2 - color of vertex

color3 - color of vertex

Method Detail

getTransparency

public int getTransparency()

Specified by:

getTransparency in interface java.awt.Transparency

createContext

public java.awt.PaintContext createContext(java.awt.image.ColorModel cm,
                                           java.awt.Rectangle deviceBounds,
                                           java.awt.geom.Rectangle2D userBounds,
                                           java.awt.geom.AffineTransform xform,
                                           java.awt.RenderingHints hints)

Specified by:

createContext in interface java.awt.Paint