prajna.viz.render

Class ImageGridRenderer<C>

java.lang.Object

prajna.viz.render.ImageGridRenderer<C>

Type Parameters:

C - The class representing the cells of the grid

public abstract class ImageGridRenderer<C>
extends java.lang.Object

Abstract renderer which transforms a grid into an image. If the grid has three or more dimensions, a cutting plane must be specified. The renderer creates an image from a grid with one or two dimensions by simply iterating over the values. Concrete implementations of this class only need to provide a method to determine the color for a given cell value in the grid.

This class currently only supports CellGrids.

Author:

Edward Swing

Constructor Summary

Constructors

Constructor and Description
ImageGridRenderer()

Method Summary

Methods

Modifier and Type	Method and Description
java.awt.image.BufferedImage	createImage(CellGrid<C> grid) Render a grid into an image.
java.awt.image.BufferedImage	createImage(CellGrid<C> grid, int[] plane) Render a grid into an image using a cutting plane.
protected abstract java.awt.Color	getColor(C cell) Get the color for a particular cell of data.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageGridRenderer

public ImageGridRenderer()

Method Detail

createImage

public java.awt.image.BufferedImage createImage(CellGrid<C> grid)

Render a grid into an image. This method may be used for grids of dimension 1 or 2. It will iterate through the grid naturally, constructing an image from the natural order and dimension of the grid. If the grid is one-dimensional, the image will have a height of one pixel. Otherwise, the dimensions of the image will correspond to the coordinate ranges of the first and second coordinate.

Parameters:

grid - the grid to convert to an image

Returns:

the image created

createImage

public java.awt.image.BufferedImage createImage(CellGrid<C> grid,
                                       int[] plane)

Render a grid into an image using a cutting plane. This method may be used for grids of any dimensionality. The cutting plane specifies where to place the plane which is used to derive the image. This method is experimental.

Parameters:

grid - the grid to convert to an image

plane - the cutting plane

Returns:

the image created

getColor

protected abstract java.awt.Color getColor(C cell)

Get the color for a particular cell of data. This method should return a Color for any particular value in the grid. It should also handle null values.

Parameters:

cell - the cell value to be colored

Returns:

the color for the cell