Java XYZDataset类代码示例

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Get the paint for a given series and item from a dataset.
 *
 * @param dataset  the dataset..
 * @param series  the series index.
 * @param item  the item index.
 *
 * @return The paint.
 */
protected Paint getPaint(XYDataset dataset, int series, int item) {
    Paint p;
    if (dataset instanceof XYZDataset) {
        double z = ((XYZDataset) dataset).getZValue(series, item);
        p = this.paintScale.getPaint(z);
    }
    else {
        if (this.useFillPaint) {
            p = getItemFillPaint(series, item);
        }
        else {
            p = getItemPaint(series, item);
        }
    }
    return p;
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Iterates over the data items of the xyz dataset to find
 * the z-dimension bounds.
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param includeInterval  include the z-interval (if the dataset has a
 *     z-interval.
 *
 * @return The range (possibly <code>null</code>).
 */
public static Range iterateZBounds(XYZDataset dataset,
        boolean includeInterval) {
    double minimum = Double.POSITIVE_INFINITY;
    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 = dataset.getZValue(series, item);
            if (!Double.isNaN(value)) {
                minimum = Math.min(minimum, value);
                maximum = Math.max(maximum, value);
            }
        }
    }

    if (minimum == Double.POSITIVE_INFINITY) {
        return null;
    }
    else {
        return new Range(minimum, maximum);
    }
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Get the paint for a given series and item from a dataset.
 *
 * @param dataset  the dataset.
 * @param series  the series index.
 * @param item  the item index.
 *
 * @return The paint.
 */
protected Paint getPaint(XYDataset dataset, int series, int item) {
    Paint p;
    if (dataset instanceof XYZDataset) {
        double z = ((XYZDataset) dataset).getZValue(series, item);
        p = this.paintScale.getPaint(z);
    } else {
        if (this.useFillPaint) {
            p = getItemFillPaint(series, item);
        }
        else {
            p = getItemPaint(series, item);
        }
    }
    return p;
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Iterates over the data items of the xyz dataset to find
 * the z-dimension bounds.
 *
 * @param dataset  the dataset ({@code null} not permitted).
 * @param includeInterval  include the z-interval (if the dataset has a
 *     z-interval.
 *
 * @return The range (possibly {@code null}).
 */
public static Range iterateZBounds(XYZDataset dataset,
        boolean includeInterval) {
    double minimum = Double.POSITIVE_INFINITY;
    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 = dataset.getZValue(series, item);
            if (!Double.isNaN(value)) {
                minimum = Math.min(minimum, value);
                maximum = Math.max(maximum, value);
            }
        }
    }

    if (minimum == Double.POSITIVE_INFINITY) {
        return null;
    }
    else {
        return new Range(minimum, maximum);
    }
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
private XYZDataset createXyzDataset()
{
	if (sampleXyzDataset == null)
	{
		DefaultXYZDataset dataset = new DefaultXYZDataset(); 
		
		dataset.addSeries(
			"First", 
			new double[][]{ 
				{2.1, 2.3, 2.3, 2.2, 2.2, 1.8, 1.8, 1.9, 2.3, 3.8}, 
				{14.1, 11.1, 10.0, 8.8, 8.7, 8.4, 5.4, 4.1, 4.1, 25}, 
				{2.4, 2.7, 2.7, 2.2, 2.2, 2.2, 2.1, 2.2, 1.6, 4}
				}
			);
		
		sampleXyzDataset = dataset;
	}
	
	return sampleXyzDataset;
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 *  create chart using data from the dataTable
 */
public void doChart(){

	if(dataTable.isEditing())
		dataTable.getCellEditor().stopCellEditing();
	if (! hasExample ) {
		showMessageDialog(DATA_MISSING_MESSAGE);
		resetChart();
		return;
	}
	
	isDemo = false;
	XYZDataset dataset = createDataset(isDemo);	
	
	JFreeChart chart = createChart(dataset);	
	chartPanel = new ChartPanel(chart, isDemo); 
	setChart();
	//updateStatus("Chart has been updated, click GRAPH to view it.");
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Get the paint for a given series and item from a dataset.
 *
 * @param dataset  the dataset..
 * @param series  the series index.
 * @param item  the item index.
 *
 * @return The paint.
 */
protected Paint getPaint(XYDataset dataset, int series, int item) {
    Paint p = null;
    if (dataset instanceof XYZDataset) {
        double z = ((XYZDataset) dataset).getZValue(series, item);
        p = this.paintScale.getPaint(z);
    }
    else {
        if (this.useFillPaint) {
            p = getItemFillPaint(series, item);
        }
        else {
            p = getItemPaint(series, item);
        }
    }
    return p;
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Creates a bubble chart with default settings.  The chart is composed of
 * an {@link XYPlot}, with a {@link NumberAxis} for the domain axis,
 * a {@link NumberAxis} for the range axis, and an {@link XYBubbleRenderer}
 * to draw the data items.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param xAxisLabel  a label for the X-axis (<code>null</code> permitted).
 * @param yAxisLabel  a label for the Y-axis (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 *
 * @return A bubble chart.
 */
public static JFreeChart createBubbleChart(String title, String xAxisLabel,
        String yAxisLabel, XYZDataset dataset, boolean legend) {

    NumberAxis xAxis = new NumberAxis(xAxisLabel);
    xAxis.setAutoRangeIncludesZero(false);
    NumberAxis yAxis = new NumberAxis(yAxisLabel);
    yAxis.setAutoRangeIncludesZero(false);
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, null);
    XYItemRenderer renderer = new XYBubbleRenderer(
            XYBubbleRenderer.SCALE_ON_RANGE_AXIS);
    renderer.setBaseToolTipGenerator(new StandardXYZToolTipGenerator());
    plot.setRenderer(renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Get the paint for a given series and item from a dataset.
 *
 * @param dataset  the dataset..
 * @param series  the series index.
 * @param item  the item index.
 * @param selected  is the data item selected?
 *
 * @return The paint.
 *
 * @since 1.2.0
 */
protected Paint getPaint(XYDataset dataset, int series, int item,
        boolean selected) {
    Paint p = null;
    if (dataset instanceof XYZDataset) {
        double z = ((XYZDataset) dataset).getZValue(series, item);
        p = this.paintScale.getPaint(z);
    }
    else {
        if (this.useFillPaint) {
            p = getItemFillPaint(series, item, selected);
        }
        else {
            p = getItemPaint(series, item, selected);
        }
    }
    return p;
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Creates a bubble chart with default settings.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param xAxisLabel  a label for the X-axis (<code>null</code> permitted).
 * @param yAxisLabel  a label for the Y-axis (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param orientation  the orientation (horizontal or vertical) (<code>null</code> NOT
 *                     permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return a bubble chart.
 */
public static JFreeChart createBubbleChart(String title,
                                           String xAxisLabel,
                                           String yAxisLabel,
                                           XYZDataset dataset,
                                           PlotOrientation orientation,
                                           boolean legend,
                                           boolean tooltips,
                                           boolean urls) {

    if (orientation == null) {
        throw new IllegalArgumentException("Null 'orientation' argument.");
    }
    NumberAxis xAxis = new NumberAxis(xAxisLabel);
    xAxis.setAutoRangeIncludesZero(false);
    NumberAxis yAxis = new NumberAxis(yAxisLabel);
    yAxis.setAutoRangeIncludesZero(false);

    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, null);

    XYItemRenderer renderer = new XYBubbleRenderer(XYBubbleRenderer.SCALE_ON_RANGE_AXIS);
    if (tooltips) {
        renderer.setToolTipGenerator(new StandardXYZToolTipGenerator());
    }
    if (urls) {
        renderer.setURLGenerator(new StandardXYZURLGenerator());
    }
    plot.setRenderer(renderer);
    plot.setOrientation(orientation);

    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);

    return chart;

}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Creates the array of items that can be passed to the {@link MessageFormat} class
 * for creating labels.
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param series  the series (zero-based index).
 * @param item  the item (zero-based index).
 *
 * @return The items (never <code>null</code>).
 */
protected Object[] createItemArray(XYZDataset dataset, int series, int item) {

    Object[] result = new Object[4];
    result[0] = dataset.getSeriesName(series);
    
    Number x = dataset.getX(series, item);
    DateFormat xf = getXDateFormat();
    if (xf != null) {
        result[1] = xf.format(x);   
    }
    else {
        result[1] = getXFormat().format(x);
    }
    
    Number y = dataset.getY(series, item);
    DateFormat yf = getYDateFormat();
    if (yf != null) {
        result[2] = yf.format(y);
    }
    else {
        result[2] = getYFormat().format(y);
    }
    
    Number z = dataset.getZ(series, item);
    if (this.zDateFormat != null) {
        result[3] = this.zDateFormat.format(z);   
    }
    else {
        result[3] = this.zFormat.format(z);   
    }
    
    return result;
    
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Creates a bubble chart with default settings.  The chart is composed of
 * an {@link XYPlot}, with a {@link NumberAxis} for the domain axis,
 * a {@link NumberAxis} for the range axis, and an {@link XYBubbleRenderer}
 * to draw the data items.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param xAxisLabel  a label for the X-axis (<code>null</code> permitted).
 * @param yAxisLabel  a label for the Y-axis (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param orientation  the orientation (horizontal or vertical) 
 *                     (<code>null</code> NOT permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A bubble chart.
 */
public static JFreeChart createBubbleChart(String title,
                                           String xAxisLabel,
                                           String yAxisLabel,
                                           XYZDataset dataset,
                                           PlotOrientation orientation,
                                           boolean legend,
                                           boolean tooltips,
                                           boolean urls) {

    if (orientation == null) {
        throw new IllegalArgumentException("Null 'orientation' argument.");
    }
    NumberAxis xAxis = new NumberAxis(xAxisLabel);
    xAxis.setAutoRangeIncludesZero(false);
    NumberAxis yAxis = new NumberAxis(yAxisLabel);
    yAxis.setAutoRangeIncludesZero(false);

    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, null);

    XYItemRenderer renderer = new XYBubbleRenderer(
            XYBubbleRenderer.SCALE_ON_RANGE_AXIS);
    if (tooltips) {
        renderer.setBaseToolTipGenerator(new StandardXYZToolTipGenerator());
    }
    if (urls) {
        renderer.setURLGenerator(new StandardXYZURLGenerator());
    }
    plot.setRenderer(renderer);
    plot.setOrientation(orientation);

    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);

    return chart;

}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Draws the block representing the specified item.
 * 
 * @param g2  the graphics device.
 * @param state  the state.
 * @param dataArea  the data area.
 * @param info  the plot rendering info.
 * @param plot  the plot.
 * @param domainAxis  the x-axis.
 * @param rangeAxis  the y-axis.
 * @param dataset  the dataset.
 * @param series  the series index.
 * @param item  the item index.
 * @param crosshairState  the crosshair state.
 * @param pass  the pass index.
 */
public void drawItem(Graphics2D g2, XYItemRendererState state, 
        Rectangle2D dataArea, PlotRenderingInfo info, XYPlot plot, 
        ValueAxis domainAxis, ValueAxis rangeAxis, XYDataset dataset, 
        int series, int item, CrosshairState crosshairState, int pass) {
    
    double x = dataset.getXValue(series, item);
    double y = dataset.getYValue(series, item);
    double z = 0.0;
    if (dataset instanceof XYZDataset) {
        z = ((XYZDataset) dataset).getZValue(series, item);
    }
    Paint p = this.paintScale.getPaint(z);
    double xx0 = domainAxis.valueToJava2D(x + this.xOffset, dataArea, 
            plot.getDomainAxisEdge());
    double yy0 = rangeAxis.valueToJava2D(y + this.yOffset, dataArea, 
            plot.getRangeAxisEdge());
    double xx1 = domainAxis.valueToJava2D(x + this.blockWidth 
            + this.xOffset, dataArea, plot.getDomainAxisEdge());
    double yy1 = rangeAxis.valueToJava2D(y + this.blockHeight 
            + this.yOffset, dataArea, plot.getRangeAxisEdge());
    Rectangle2D block;
    PlotOrientation orientation = plot.getOrientation();
    if (orientation.equals(PlotOrientation.HORIZONTAL)) {
        block = new Rectangle2D.Double(Math.min(yy0, yy1), 
                Math.min(xx0, xx1), Math.abs(yy1 - yy0), 
                Math.abs(xx0 - xx1));
    }
    else {
        block = new Rectangle2D.Double(Math.min(xx0, xx1), 
                Math.min(yy0, yy1), Math.abs(xx1 - xx0), 
                Math.abs(yy1 - yy0));            
    }
    g2.setPaint(p);
    g2.fill(block);
    g2.setStroke(new BasicStroke(1.0f));
    g2.draw(block);
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Generates a label string for an item in the dataset.
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param series  the series (zero-based index).
 * @param item  the item (zero-based index).
 *
 * @return The label (possibly <code>null</code>).
 */
public String generateLabelString(XYDataset dataset, int series, int item) {
    String result = null;    
    Object[] items = null;
    if (dataset instanceof XYZDataset) {
        items = createItemArray((XYZDataset) dataset, series, item);
    }
    else {
        items = createItemArray(dataset, series, item);
    }
    result = MessageFormat.format(getFormatString(), items);
    return result;
}
 

import org.jfree.data.xy.XYZDataset; //导入依赖的package包/类
/**
 * Creates the array of items that can be passed to the 
 * {@link MessageFormat} class for creating labels.
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param series  the series (zero-based index).
 * @param item  the item (zero-based index).
 *
 * @return The items (never <code>null</code>).
 */
protected Object[] createItemArray(XYZDataset dataset, 
                                   int series, int item) {

    Object[] result = new Object[4];
    result[0] = dataset.getSeriesKey(series).toString();
 
    Number x = dataset.getX(series, item);
    DateFormat xf = getXDateFormat();
    if (xf != null) {
        result[1] = xf.format(x);   
    }
    else {
        result[1] = getXFormat().format(x);
    }
    
    Number y = dataset.getY(series, item);
    DateFormat yf = getYDateFormat();
    if (yf != null) {
        result[2] = yf.format(y);
    }
    else {
        result[2] = getYFormat().format(y);
    }
    
    Number z = dataset.getZ(series, item);
    if (this.zDateFormat != null) {
        result[3] = this.zDateFormat.format(z);   
    }
    else {
        result[3] = this.zFormat.format(z);   
    }
    
    return result;
    
}