org.dmonix.util.image.imageobjects
Class GraphImageObject

java.lang.Object
  org.dmonix.util.image.imageobjects.BaseImageObject
      org.dmonix.util.image.imageobjects.GraphImageObject

All Implemented Interfaces:

ImageObject

public class GraphImageObject

extends BaseImageObject

The class will paint one or more graphs on a graphics object.
Differenct colors are allowed for each graph.

Copyright: Copyright (c) 2004

Company: dmonix.org

Version:

1.0

Author:

Peter Nerg

Field Summary

static int	GRAPH_TYPE_CUBIC Uses a cubic style algorithm to connect the dots of the graph.
static int	GRAPH_TYPE_QUAD Uses a quadratic style algorithm to connect the dots of the graph.

Fields inherited from class org.dmonix.util.image.imageobjects.BaseImageObject

bg, dash1, fg, HEIGHT, NOTCH_LENGTH, stroke, STROKE_DASHED_LINE, STROKE_DOTTED_LINE, STROKE_LINE, STROKE_LINE_THICKER, STROKE_POINT, wideStroke, WIDTH, X_AXIS_ABSOLUTE_LENGTH, X_AXIS_HORIZONTAL_END_OFFSET, X_AXIS_HORIZONTAL_START_OFFSET, X_AXIS_NOTCH_COUNT, X_AXIS_NOTCH_DISTANCE, X_AXIS_SCALE_FACTOR, X_AXIS_SCALE_STEP, X_AXIS_VERTICAL_OFFSET, Y_AXIS_ABSOLUTE_LENGTH, Y_AXIS_HORIZONTAL_OFFSET, Y_AXIS_NOTCH_COUNT, Y_AXIS_NOTCH_DISTANCE, Y_AXIS_SCALE_FACTOR, Y_AXIS_SCALE_STEP, Y_AXIS_VERTICAL_END_OFFSET, Y_AXIS_VERTICAL_START_OFFSET

Constructor Summary

GraphImageObject(int width, int height)
Constructor [obviously].

Method Summary

void	addData(int graph, int value) Add data to a specific graph.
int	addGraph(int graphType, java.awt.Color color) Add a new graph to the image.
void	paint(java.awt.Graphics2D g2) Paint the image.
void	setXAxisHeaders(java.lang.String[] headers) Sets the text printed on the x-axis.

Methods inherited from class org.dmonix.util.image.imageobjects.BaseImageObject

calculateXAxisNotchDistanceBasedOnObjects, calculateXAxisNotchDistanceBasedOnValue, calculateYAxisNotchDistanceBasedOnObjects, calculateYAxisNotchDistanceBasedOnValue, drawXAxis, drawYAxis, getBounds

Methods inherited from class java.lang.Object

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

Field Detail

GRAPH_TYPE_CUBIC

public static final int GRAPH_TYPE_CUBIC

Uses a cubic style algorithm to connect the dots of the graph.

See Also:

Constant Field Values

GRAPH_TYPE_QUAD

public static final int GRAPH_TYPE_QUAD

Uses a quadratic style algorithm to connect the dots of the graph.

See Also:

Constant Field Values

Constructor Detail

GraphImageObject

public GraphImageObject(int width,
                        int height)

Constructor [obviously].

Parameters:

width - The width of the image

height - The height of the image

Method Detail

addGraph

public int addGraph(int graphType,
                    java.awt.Color color)

Add a new graph to the image.
The user may choose the type of algorithm used to connect the dots of the graph.

Parameters:

graphType - The type of the graph

color - The color of the graph

Returns:

A reference to the graph

See Also:

GRAPH_TYPE_CUBIC, GRAPH_TYPE_QUAD

addData

public void addData(int graph,
                    int value)

Add data to a specific graph.

Parameters:

graph - The graph to add the data to

value - The value

setXAxisHeaders

public void setXAxisHeaders(java.lang.String[] headers)

Sets the text printed on the x-axis.

Parameters:

headers - The text

paint

public void paint(java.awt.Graphics2D g2)

Description copied from class: BaseImageObject

Paint the image.

Specified by:

paint in interface ImageObject

Specified by:

paint in class BaseImageObject

Parameters:

g2 - The graphics object.