Module org.jfree.chart

Package org.jfree.data.general

Class HeatMapUtils

java.lang.Object

org.jfree.data.general.HeatMapUtils

public abstract class HeatMapUtils
extends Object

A utility class for the HeatMapDataset.

Since:

1.0.13

Constructor Summary

Constructors

Constructor	Description
HeatMapUtils()

Method Summary

Modifier and Type	Method	Description
static BufferedImage	createHeatMapImage(HeatMapDataset dataset, PaintScale paintScale)	Creates an image that displays the values from the specified dataset.
static XYDataset	extractColumnFromHeatMapDataset(HeatMapDataset dataset, int column, Comparable seriesName)	Returns a dataset containing one series that holds a copy of the (y, z) data from one column (x-index) of the specified dataset.
static XYDataset	extractRowFromHeatMapDataset(HeatMapDataset dataset, int row, Comparable seriesName)	Returns a dataset containing one series that holds a copy of the (x, z) data from one row (y-index) of the specified dataset.

Methods inherited from class java.lang.Object

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

Constructor Detail

HeatMapUtils

public HeatMapUtils()

Method Detail

extractRowFromHeatMapDataset

public static XYDataset extractRowFromHeatMapDataset(HeatMapDataset dataset,
                                                     int row,
                                                     Comparable seriesName)

Returns a dataset containing one series that holds a copy of the (x, z) data from one row (y-index) of the specified dataset.

Parameters:

dataset - the dataset (null not permitted).

row - the row (y) index.

seriesName - the series name/key (null not permitted).

Returns:

The dataset.

extractColumnFromHeatMapDataset

public static XYDataset extractColumnFromHeatMapDataset(HeatMapDataset dataset,
                                                        int column,
                                                        Comparable seriesName)

Returns a dataset containing one series that holds a copy of the (y, z) data from one column (x-index) of the specified dataset.

Parameters:

dataset - the dataset (null not permitted).

column - the column (x) index.

seriesName - the series name (null not permitted).

Returns:

The dataset.

createHeatMapImage

public static BufferedImage createHeatMapImage(HeatMapDataset dataset,
                                               PaintScale paintScale)

Creates an image that displays the values from the specified dataset.

Parameters:

dataset - the dataset (null not permitted).

paintScale - the paint scale for the z-values (null not permitted).

Returns:

A buffered image.