Package org.jfree.data.general

Class HeatMapUtils

  • public abstract class HeatMapUtils
extends java.lang.Object
    A utility class for the HeatMapDataset.

    • Constructor Summary

      Constructors 
      Constructor Description
      HeatMapUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.awt.image.BufferedImage createHeatMapImage​(HeatMapDataset dataset, PaintScale paintScale)
      Creates an image that displays the values from the specified dataset.
      static XYDataset extractColumnFromHeatMapDataset​(HeatMapDataset dataset, int column, java.lang.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, java.lang.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,
                                                     java.lang.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,
                                                        java.lang.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 java.awt.image.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.