Package org.gephi.utils.sparklines

Class SparklineGraph

java.lang.Object

org.gephi.utils.sparklines.SparklineGraph

public class SparklineGraph
extends Object

Class for drawing sparkline graphics.

Drawing settings are controlled with SparklineParameters class

Use SparklineComponent class to easily include interactive sparklines in your GUI

Author:

Eduardo Ramos

See Also:

SparklineParameters

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	SparklineGraph.HighlightParameters

Field Summary

Fields

Modifier and Type	Field	Description
private static int	HIGHLIGHT_RADIUS

Constructor Summary

Constructors

Constructor	Description
SparklineGraph()

Method Summary

Modifier and Type	Method	Description
private static String	buildHighlightText(SparklineParameters.HighlightTextMode highlightTextMode, Number x, Number y)
private static float	calculateMax(Number[] yValues)
private static float	calculateMin(Number[] yValues)
static BufferedImage	draw(Number[] xValues, Number[] yValues, Number yMinValue, Number yMaxValue, SparklineParameters parameters)	Draw a sparkline with x axis and y axis values, and pre-calculated min and max of the y axis values.
static BufferedImage	draw(Number[] xValues, Number[] yValues, SparklineParameters parameters)	Draw a sparkline with x axis and y axis values.
static BufferedImage	draw(Number[] yValues, Number yMinValue, Number yMaxValue, SparklineParameters parameters)	Draw a sparkline only providing y axis values, and pre-calculated min and max of the y axis values.
static BufferedImage	draw(Number[] values, SparklineParameters parameters)	Draw a sparkline only providing y axis values (1 x tick per number assumed)
private static void	drawHighlight(Graphics2D g, float x, float y, Color highlightColor)

Methods inherited from class java.lang.Object

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

Field Detail

HIGHLIGHT_RADIUS

private static final int HIGHLIGHT_RADIUS

See Also:

Constant Field Values

Constructor Detail

SparklineGraph

public SparklineGraph()

Method Detail

draw

public static BufferedImage draw(Number[] values,
                                 SparklineParameters parameters)

Draw a sparkline only providing y axis values (1 x tick per number assumed)

Parameters:

values - Y axis values

parameters - Rendering parameters

Returns:

Image of the sparkline

draw

public static BufferedImage draw(Number[] xValues,
                                 Number[] yValues,
                                 SparklineParameters parameters)

Draw a sparkline with x axis and y axis values. X values must be ordered and not repeated.

Parameters:

xValues - X axis values

yValues - Y axis values

parameters - Rendering parameters

Returns:

Image of the sparkline

draw

public static BufferedImage draw(Number[] yValues,
                                 Number yMinValue,
                                 Number yMaxValue,
                                 SparklineParameters parameters)

Draw a sparkline only providing y axis values, and pre-calculated min and max of the y axis values. Use this when you already have min/max values calculated and want to avoid extra calculations by SparklineGraph

Parameters:

yValues - Y axis values

yMinValue - Minimum value of the Y axis, should be correct

yMaxValue - Maximum value of the Y axis, should be correct

parameters - Rendering parameters

Returns:

Image of the sparkline

draw

public static BufferedImage draw(Number[] xValues,
                                 Number[] yValues,
                                 Number yMinValue,
                                 Number yMaxValue,
                                 SparklineParameters parameters)

Draw a sparkline with x axis and y axis values, and pre-calculated min and max of the y axis values. Use this when you already have min/max values calculated and want to avoid extra calculations by SparklineGraph X values must be ordered and not repeated.

Parameters:

xValues - X axis values

yValues - Y axis values

yMinValue - Minimum value of the Y axis, should be correct

yMaxValue - Maximum value of the Y axis, should be correct

parameters - Rendering parameters

Returns:

Image of the sparkline

drawHighlight

private static void drawHighlight(Graphics2D g,
                                  float x,
                                  float y,
                                  Color highlightColor)

calculateMin

private static float calculateMin(Number[] yValues)

calculateMax

private static float calculateMax(Number[] yValues)

buildHighlightText

private static String buildHighlightText(SparklineParameters.HighlightTextMode highlightTextMode,
                                         Number x,
                                         Number y)