Example usage for org.jfree.data.xy WindDataItem WindDataItem

Introduction

In this page you can find the example usage for org.jfree.data.xy WindDataItem WindDataItem.

Prototype

public WindDataItem(final Number x, final Number windDir, final Number windForce) 

Source Link

Usage

From source file:org.jfree.data.xy.DefaultWindDataset.java

/**
 * Constructs a dataset based on the specified data array.  The array
 * can contain multiple series, each series can contain multiple items,
 * and each item is as follows://ww  w  .j av  a2  s.c  om
 * <ul>
 * <li><code>data[series][item][0]</code> - the date (either a
 *   <code>Date</code> or a <code>Number</code> that is the milliseconds
 *   since 1-Jan-1970);</li>
 * <li><code>data[series][item][1]</code> - the wind direction (1 - 12,
 *   like the numbers on a clock face);</li>
 * <li><code>data[series][item][2]</code> - the wind force (1 - 12 on the
 *   Beaufort scale)</li>
 * </ul>
 *
 * @param seriesKeys  the names of the series (<code>null</code> not
 *     permitted).
 * @param data  the wind dataset (<code>null</code> not permitted).
 *
 * @throws IllegalArgumentException if <code>seriesKeys</code> is
 *     <code>null</code>.
 * @throws IllegalArgumentException if the number of series keys does not
 *     match the number of series in the array.
 * @throws NullPointerException if <code>data</code> is <code>null</code>.
 */
public DefaultWindDataset(List seriesKeys, Object[][][] data) {
    ParamChecks.nullNotPermitted(seriesKeys, "seriesKeys");
    if (seriesKeys.size() != data.length) {
        throw new IllegalArgumentException(
                "The number of series keys does " + "not match the number of series in the data array.");
    }
    this.seriesKeys = seriesKeys;
    int seriesCount = data.length;
    this.allSeriesData = new java.util.ArrayList(seriesCount);

    for (int seriesIndex = 0; seriesIndex < seriesCount; seriesIndex++) {
        List oneSeriesData = new java.util.ArrayList();
        int maxItemCount = data[seriesIndex].length;
        for (int itemIndex = 0; itemIndex < maxItemCount; itemIndex++) {
            Object xObject = data[seriesIndex][itemIndex][0];
            if (xObject != null) {
                Number xNumber;
                if (xObject instanceof Number) {
                    xNumber = (Number) xObject;
                } else {
                    if (xObject instanceof Date) {
                        Date xDate = (Date) xObject;
                        xNumber = new Long(xDate.getTime());
                    } else {
                        xNumber = new Integer(0);
                    }
                }
                Number windDir = (Number) data[seriesIndex][itemIndex][1];
                Number windForce = (Number) data[seriesIndex][itemIndex][2];
                oneSeriesData.add(new WindDataItem(xNumber, windDir, windForce));
            }
        }
        Collections.sort(oneSeriesData);
        this.allSeriesData.add(seriesIndex, oneSeriesData);
    }

}

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