com.approximatrix.charting.render
Class ImageRenderer

java.lang.Object
  com.approximatrix.charting.render.AbstractChartRenderer
      com.approximatrix.charting.render.ImageRenderer

All Implemented Interfaces:

Renderer

public class ImageRenderer
extends AbstractChartRenderer

Renderer for creating dot plots. Renderer is relatively simple because the model itself holds an image of the data. The renderer buffers an appropriate-for-drawing image, which is only recreated if the coordinate system transform changes.

Author:

armstrong

Field Summary

private IntegratedImageModel	dpmodel The image model for rendering
private java.awt.geom.AffineTransform	last Buffered version of the coordinate transform used for painting
private java.awt.Image	renderImage BufferedImage object used for plotting
private int	scaleHints The hint for scaling the viewable image to fit the bounds

Fields inherited from class com.approximatrix.charting.render.AbstractChartRenderer

bounds, coord, listener, model, rcm, stopFlag

Constructor Summary

ImageRenderer(CoordSystem cs, IntegratedImageModel model)
Creates the renderer from the coordinate system and the model

Method Summary

void	renderChart(java.awt.Graphics2D g) Renders the image.
void	setScaleHint(int value) Sets the image scaling hint

Methods inherited from class com.approximatrix.charting.render.AbstractChartRenderer

addRenderChangeListener, clearRenderChangeListeners, fireRenderChangeEvent, getBounds, getChartDataModel, getCoordSystem, getPreferredSize, getRowColorModel, getTransform, interruptRendering, removeRenderChangeListener, render, resetStopFlag, setBounds, setChartDataModel, setCoordSystem, setRowColorModel

Methods inherited from class java.lang.Object

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

Field Detail

last

private java.awt.geom.AffineTransform last

Buffered version of the coordinate transform used for painting

renderImage

private java.awt.Image renderImage

BufferedImage object used for plotting

dpmodel

private IntegratedImageModel dpmodel

The image model for rendering

scaleHints

private int scaleHints

The hint for scaling the viewable image to fit the bounds

Constructor Detail

ImageRenderer

public ImageRenderer(CoordSystem cs,
                     IntegratedImageModel model)

Creates the renderer from the coordinate system and the model

Parameters:

cs - the coordinate system

model - the model for rendering

Method Detail

renderChart

public void renderChart(java.awt.Graphics2D g)

Renders the image. If the transform has changed, the buffer is refreshed.

Specified by:

renderChart in class AbstractChartRenderer

setScaleHint

public void setScaleHint(int value)

Sets the image scaling hint

Parameters:

value - a valid scaling hint

See Also:

Image