Package org.jfree.data.general
Class HeatMapUtilities
- java.lang.Object
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- org.jfree.data.general.HeatMapUtilities
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public abstract class HeatMapUtilities extends Object
A utility class for theHeatMapDataset
.- Since:
- 1.0.13
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Constructor Summary
Constructors Constructor Description HeatMapUtilities()
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Method Summary
All Methods Static Methods Concrete Methods 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.
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Method Detail
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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.
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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.
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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.
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