Example usage for org.jfree.data DomainInfo getDomainUpperBound

Introduction

In this page you can find the example usage for org.jfree.data DomainInfo getDomainUpperBound.

Prototype

public double getDomainUpperBound(boolean includeInterval);

Source Link

Document

Returns the maximum x-value in the dataset.

Usage

From source file:org.jfree.data.general.DatasetUtils.java

/**
 * Returns the maximum domain value for the specified dataset.  This is
 * easy if the dataset implements the {@link DomainInfo} interface (a good
 * idea if there is an efficient way to determine the maximum value).
 * Otherwise, it involves iterating over the entire data-set.  Returns
 * {@code null} if all the data values in the dataset are
 * {@code null}.//ww  w.j  ava 2  s  .c o m
 *
 * @param dataset  the dataset ({@code null} not permitted).
 *
 * @return The maximum value (possibly {@code null}).
 */
public static Number findMaximumDomainValue(XYDataset dataset) {
    Args.nullNotPermitted(dataset, "dataset");
    Number result;
    // if the dataset implements DomainInfo, life is easy
    if (dataset instanceof DomainInfo) {
        DomainInfo info = (DomainInfo) dataset;
        return new Double(info.getDomainUpperBound(true));
    }

    // hasn't implemented DomainInfo, so iterate...
    else {
        double maximum = Double.NEGATIVE_INFINITY;
        int seriesCount = dataset.getSeriesCount();
        for (int series = 0; series < seriesCount; series++) {
            int itemCount = dataset.getItemCount(series);
            for (int item = 0; item < itemCount; item++) {

                double value;
                if (dataset instanceof IntervalXYDataset) {
                    IntervalXYDataset intervalXYData = (IntervalXYDataset) dataset;
                    value = intervalXYData.getEndXValue(series, item);
                } else {
                    value = dataset.getXValue(series, item);
                }
                if (!Double.isNaN(value)) {
                    maximum = Math.max(maximum, value);
                }
            }
        }
        if (maximum == Double.NEGATIVE_INFINITY) {
            result = null;
        } else {
            result = new Double(maximum);
        }

    }

    return result;
}

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From source file:org.jfree.data.general.DatasetUtilities.java

/**
 * Returns the maximum domain value for the specified dataset.  This is
 * easy if the dataset implements the {@link DomainInfo} interface (a good
 * idea if there is an efficient way to determine the maximum value).
 * Otherwise, it involves iterating over the entire data-set.  Returns
 * <code>null</code> if all the data values in the dataset are
 * <code>null</code>./*  w w  w.  j  a v a  2s. c om*/
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 *
 * @return The maximum value (possibly <code>null</code>).
 */
public static Number findMaximumDomainValue(XYDataset dataset) {
    ParamChecks.nullNotPermitted(dataset, "dataset");
    Number result;
    // if the dataset implements DomainInfo, life is easy
    if (dataset instanceof DomainInfo) {
        DomainInfo info = (DomainInfo) dataset;
        return new Double(info.getDomainUpperBound(true));
    }

    // hasn't implemented DomainInfo, so iterate...
    else {
        double maximum = Double.NEGATIVE_INFINITY;
        int seriesCount = dataset.getSeriesCount();
        for (int series = 0; series < seriesCount; series++) {
            int itemCount = dataset.getItemCount(series);
            for (int item = 0; item < itemCount; item++) {

                double value;
                if (dataset instanceof IntervalXYDataset) {
                    IntervalXYDataset intervalXYData = (IntervalXYDataset) dataset;
                    value = intervalXYData.getEndXValue(series, item);
                } else {
                    value = dataset.getXValue(series, item);
                }
                if (!Double.isNaN(value)) {
                    maximum = Math.max(maximum, value);
                }
            }
        }
        if (maximum == Double.NEGATIVE_INFINITY) {
            result = null;
        } else {
            result = new Double(maximum);
        }

    }

    return result;
}

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