org.jfree.chart.plot.PolarPlot Java Examples

/**
 * Creates a polar plot for the specified dataset (x-values interpreted as
 * angles in degrees).  The chart object returned by this method uses a
 * {@link PolarPlot} instance as the plot, with a {@link NumberAxis} for
 * the radial axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset (<code>null</code> permitted).
 * @param legend  legend required?
 * @param tooltips  tooltips required?
 * @param urls  URLs required?
 *
 * @return A chart.
 */
public static JFreeChart createPolarChart(String title, XYDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    PolarPlot plot = new PolarPlot();
    plot.setDataset(dataset);
    NumberAxis rangeAxis = new NumberAxis();
    rangeAxis.setAxisLineVisible(false);
    rangeAxis.setTickMarksVisible(false);
    rangeAxis.setTickLabelInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0));
    plot.setAxis(rangeAxis);
    plot.setRenderer(new DefaultPolarItemRenderer());
    JFreeChart chart = new JFreeChart(
            title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Creates a polar plot for the specified dataset (x-values interpreted as
 * angles in degrees).  The chart object returned by this method uses a
 * {@link PolarPlot} instance as the plot, with a {@link NumberAxis} for
 * the radial axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset (<code>null</code> permitted).
 * @param legend  legend required?
 * @param tooltips  tooltips required?
 * @param urls  URLs required?
 *
 * @return A chart.
 */
public static JFreeChart createPolarChart(String title, XYDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    PolarPlot plot = new PolarPlot();
    plot.setDataset(dataset);
    NumberAxis rangeAxis = new NumberAxis();
    rangeAxis.setAxisLineVisible(false);
    rangeAxis.setTickMarksVisible(false);
    rangeAxis.setTickLabelInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0));
    plot.setAxis(rangeAxis);
    plot.setRenderer(new DefaultPolarItemRenderer());
    JFreeChart chart = new JFreeChart(
            title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Creates a polar plot for the specified dataset (x-values interpreted as
 * angles in degrees).  The chart object returned by this method uses a
 * {@link PolarPlot} instance as the plot, with a {@link NumberAxis} for
 * the radial axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset (<code>null</code> permitted).
 * @param legend  legend required?
 * @param tooltips  tooltips required?
 * @param urls  URLs required?
 *
 * @return A chart.
 */
public static JFreeChart createPolarChart(String title, XYDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    PolarPlot plot = new PolarPlot();
    plot.setDataset(dataset);
    NumberAxis rangeAxis = new NumberAxis();
    rangeAxis.setAxisLineVisible(false);
    rangeAxis.setTickMarksVisible(false);
    rangeAxis.setTickLabelInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0));
    plot.setAxis(rangeAxis);
    plot.setRenderer(new DefaultPolarItemRenderer());
    JFreeChart chart = new JFreeChart(
            title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Creates a polar plot for the specified dataset (x-values interpreted as
 * angles in degrees).  The chart object returned by this method uses a
 * {@link PolarPlot} instance as the plot, with a {@link NumberAxis} for
 * the radial axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset (<code>null</code> permitted).
 * @param legend  legend required?
 * @param tooltips  tooltips required?
 * @param urls  URLs required?
 *
 * @return A chart.
 */
public static JFreeChart createPolarChart(String title, XYDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    PolarPlot plot = new PolarPlot();
    plot.setDataset(dataset);
    NumberAxis rangeAxis = new NumberAxis();
    rangeAxis.setAxisLineVisible(false);
    rangeAxis.setTickMarksVisible(false);
    rangeAxis.setTickLabelInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0));
    plot.setAxis(rangeAxis);
    plot.setRenderer(new DefaultPolarItemRenderer());
    JFreeChart chart = new JFreeChart(
            title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Applies the attributes of this theme to a {@link PolarPlot}.  This
 * method is called from the {@link #applyToPlot(Plot)} method.
 *
 * @param plot  the plot (<code>null</code> not permitted).
 */
protected void applyToPolarPlot(PolarPlot plot) {
    plot.setAngleLabelFont(this.regularFont);
    plot.setAngleLabelPaint(this.tickLabelPaint);
    plot.setAngleGridlinePaint(this.domainGridlinePaint);
    plot.setRadiusGridlinePaint(this.rangeGridlinePaint);
    ValueAxis axis = plot.getAxis();
    if (axis != null) {
        applyToValueAxis(axis);
    }
}
 

/**
 * Draw the radial gridlines - the rings.
 *
 * @param g2  the drawing surface (<code>null</code> not permitted).
 * @param plot  the plot (<code>null</code> not permitted).
 * @param radialAxis  the radial axis (<code>null</code> not permitted).
 * @param ticks  the ticks (<code>null</code> not permitted).
 * @param dataArea  the data area.
 */
@Override
public void drawRadialGridLines(Graphics2D g2, PolarPlot plot, 
        ValueAxis radialAxis, List ticks, Rectangle2D dataArea) {

    ParamChecks.nullNotPermitted(radialAxis, "radialAxis");
    g2.setFont(radialAxis.getTickLabelFont());
    g2.setPaint(plot.getRadiusGridlinePaint());
    g2.setStroke(plot.getRadiusGridlineStroke());

    double centerValue;
    if (radialAxis.isInverted()) {
        centerValue = radialAxis.getUpperBound();
    } else {
        centerValue = radialAxis.getLowerBound();
    }
    Point center = plot.translateToJava2D(0, centerValue, radialAxis, dataArea);

    Iterator iterator = ticks.iterator();
    while (iterator.hasNext()) {
        NumberTick tick = (NumberTick) iterator.next();
        double angleDegrees = plot.isCounterClockwise() 
                ? plot.getAngleOffset() : -plot.getAngleOffset();
        Point p = plot.translateToJava2D(angleDegrees,
                tick.getNumber().doubleValue(), radialAxis, dataArea);
        int r = p.x - center.x;
        int upperLeftX = center.x - r;
        int upperLeftY = center.y - r;
        int d = 2 * r;
        Ellipse2D ring = new Ellipse2D.Double(upperLeftX, upperLeftY, d, d);
        g2.setPaint(plot.getRadiusGridlinePaint());
        g2.draw(ring);
    }
}
 

/**
 * Test that the chart is using an xy plot with time as the domain axis.
 *
 * @param chart  the chart.
 */
private void checkChart(JFreeChart chart) {
    Plot plot = chart.getPlot();
    if (!(plot instanceof PolarPlot)) {
        throw new IllegalArgumentException("plot is not a PolarPlot");
   }
}
 

/**
 * Test that the chart is using an xy plot with time as the domain axis.
 * 
 * @param chart  the chart.
 */
private void checkChart(JFreeChart chart) {
    Plot plot = chart.getPlot();
    if (!(plot instanceof PolarPlot)) {
        throw new IllegalArgumentException("plot is not a PolarPlot");
   }
}
 

/**
 * Applies the attributes of this theme to a {@link PolarPlot}.  This
 * method is called from the {@link #applyToPlot(Plot)} method.
 *
 * @param plot  the plot (<code>null</code> not permitted).
 */
protected void applyToPolarPlot(PolarPlot plot) {
    plot.setAngleLabelFont(this.regularFont);
    plot.setAngleLabelPaint(this.tickLabelPaint);
    plot.setAngleGridlinePaint(this.domainGridlinePaint);
    plot.setRadiusGridlinePaint(this.rangeGridlinePaint);
    ValueAxis axis = plot.getAxis();
    if (axis != null) {
        applyToValueAxis(axis);
    }
}
 

/**
 * Standard constructor - constructs a panel for editing the properties of
 * the specified plot.
 *
 * @param plot  the plot, which should be changed.
 */
public DefaultPolarPlotEditor(PolarPlot plot) {
    super(plot);
    this.angleOffsetValue = plot.getAngleOffset();
    this.angleOffset.setText(Double.toString(this.angleOffsetValue));
    this.manualTickUnitValue = plot.getAngleTickUnit().getSize();
    this.manualTickUnit.setText(Double.toString(this.manualTickUnitValue));
}
 

/**
 * Returns the drawing supplier from the plot.
 *
 * @return The drawing supplier.
 */
@Override
public DrawingSupplier getDrawingSupplier() {
    DrawingSupplier result = null;
    PolarPlot p = getPlot();
    if (p != null) {
        result = p.getDrawingSupplier();
    }
    return result;
}
 

/**
 * Applies the attributes of this theme to a {@link PolarPlot}.  This
 * method is called from the {@link #applyToPlot(Plot)} method.
 *
 * @param plot  the plot (<code>null</code> not permitted).
 */
protected void applyToPolarPlot(PolarPlot plot) {
    plot.setAngleLabelFont(this.regularFont);
    plot.setAngleLabelPaint(this.tickLabelPaint);
    plot.setAngleGridlinePaint(this.domainGridlinePaint);
    plot.setRadiusGridlinePaint(this.rangeGridlinePaint);
    ValueAxis axis = plot.getAxis();
    if (axis != null) {
        applyToValueAxis(axis);
    }
}
 

/**
 * Draw the radial gridlines - the rings.
 *
 * @param g2  the drawing surface.
 * @param plot  the plot.
 * @param radialAxis  the radial axis.
 * @param ticks  the ticks.
 * @param dataArea  the data area.
 */
public void drawRadialGridLines(Graphics2D g2,
                                PolarPlot plot,
                                ValueAxis radialAxis,
                                List ticks,
                                Rectangle2D dataArea) {

    g2.setFont(radialAxis.getTickLabelFont());
    g2.setPaint(plot.getRadiusGridlinePaint());
    g2.setStroke(plot.getRadiusGridlineStroke());

    double axisMin = radialAxis.getLowerBound();
    Point center = plot.translateValueThetaRadiusToJava2D(axisMin, axisMin,
            dataArea);

    Iterator iterator = ticks.iterator();
    while (iterator.hasNext()) {
        NumberTick tick = (NumberTick) iterator.next();
        Point p = plot.translateValueThetaRadiusToJava2D(90.0,
                tick.getNumber().doubleValue(), dataArea);
        int r = p.x - center.x;
        int upperLeftX = center.x - r;
        int upperLeftY = center.y - r;
        int d = 2 * r;
        Ellipse2D ring = new Ellipse2D.Double(upperLeftX, upperLeftY, d, d);
        g2.setPaint(plot.getRadiusGridlinePaint());
        g2.draw(ring);
    }
}
 

/**
 * Draw the radial gridlines - the rings.
 * 
 * @param g2  the drawing surface.
 * @param plot  the plot.
 * @param radialAxis  the radial axis.
 * @param ticks  the ticks.
 * @param dataArea  the data area.
 */
public void drawRadialGridLines(Graphics2D g2, 
                                PolarPlot plot,
                                ValueAxis radialAxis,
                                List ticks,
                                Rectangle2D dataArea) {
    
    g2.setFont(radialAxis.getTickLabelFont());
    g2.setPaint(plot.getRadiusGridlinePaint());
    g2.setStroke(plot.getRadiusGridlineStroke());

    double axisMin = radialAxis.getLowerBound();
    Point center = plot.translateValueThetaRadiusToJava2D(axisMin, axisMin,
            dataArea);
    
    Iterator iterator = ticks.iterator();
    while (iterator.hasNext()) {
        NumberTick tick = (NumberTick) iterator.next();
        Point p = plot.translateValueThetaRadiusToJava2D(90.0, 
                tick.getNumber().doubleValue(), dataArea);
        int r = p.x - center.x;
        int upperLeftX = center.x - r;
        int upperLeftY = center.y - r;
        int d = 2 * r;
        Ellipse2D ring = new Ellipse2D.Double(upperLeftX, upperLeftY, d, d);
        g2.setPaint(plot.getRadiusGridlinePaint());
        g2.draw(ring);
    }
}
 

/**
 * Draw the radial gridlines - the rings.
 *
 * @param g2  the drawing surface (<code>null</code> not permitted).
 * @param plot  the plot (<code>null</code> not permitted).
 * @param radialAxis  the radial axis (<code>null</code> not permitted).
 * @param ticks  the ticks (<code>null</code> not permitted).
 * @param dataArea  the data area.
 */
@Override
public void drawRadialGridLines(Graphics2D g2, PolarPlot plot, 
        ValueAxis radialAxis, List ticks, Rectangle2D dataArea) {

    ParamChecks.nullNotPermitted(radialAxis, "radialAxis");
    g2.setFont(radialAxis.getTickLabelFont());
    g2.setPaint(plot.getRadiusGridlinePaint());
    g2.setStroke(plot.getRadiusGridlineStroke());

    double centerValue;
    if (radialAxis.isInverted()) {
        centerValue = radialAxis.getUpperBound();
    } else {
        centerValue = radialAxis.getLowerBound();
    }
    Point center = plot.translateToJava2D(0, centerValue, radialAxis, dataArea);

    Iterator iterator = ticks.iterator();
    while (iterator.hasNext()) {
        NumberTick tick = (NumberTick) iterator.next();
        double angleDegrees = plot.isCounterClockwise() 
                ? plot.getAngleOffset() : -plot.getAngleOffset();
        Point p = plot.translateToJava2D(angleDegrees,
                tick.getNumber().doubleValue(), radialAxis, dataArea);
        int r = p.x - center.x;
        int upperLeftX = center.x - r;
        int upperLeftY = center.y - r;
        int d = 2 * r;
        Ellipse2D ring = new Ellipse2D.Double(upperLeftX, upperLeftY, d, d);
        g2.setPaint(plot.getRadiusGridlinePaint());
        g2.draw(ring);
    }
}
 

/**
 * Test that the chart is using an xy plot with time as the domain axis.
 *
 * @param chart  the chart.
 */
private void checkChart(JFreeChart chart) {
    Plot plot = chart.getPlot();
    if (!(plot instanceof PolarPlot)) {
        throw new IllegalArgumentException("plot is not a PolarPlot");
   }
}
 

/**
 * Applies the attributes of this theme to a {@link PolarPlot}.  This
 * method is called from the {@link #applyToPlot(Plot)} method.
 *
 * @param plot  the plot (<code>null</code> not permitted).
 */
protected void applyToPolarPlot(PolarPlot plot) {
    plot.setAngleLabelFont(this.regularFont);
    plot.setAngleLabelPaint(this.tickLabelPaint);
    plot.setAngleGridlinePaint(this.domainGridlinePaint);
    plot.setRadiusGridlinePaint(this.rangeGridlinePaint);
    ValueAxis axis = plot.getAxis();
    if (axis != null) {
        applyToValueAxis(axis);
    }
}
 

/**
 * Standard constructor - constructs a panel for editing the properties of
 * the specified plot.
 *
 * @param plot  the plot, which should be changed.
 */
public DefaultPolarPlotEditor(PolarPlot plot) {
    super(plot);
    this.angleOffsetValue = plot.getAngleOffset();
    this.angleOffset.setText(Double.toString(this.angleOffsetValue));
    this.manualTickUnitValue = plot.getAngleTickUnit().getSize();
    this.manualTickUnit.setText(Double.toString(this.manualTickUnitValue));
}
 

/**
 * Test that the chart is using an xy plot with time as the domain axis.
 *
 * @param chart  the chart.
 */
private void checkChart(JFreeChart chart) {
    Plot plot = chart.getPlot();
    if (!(plot instanceof PolarPlot)) {
        throw new IllegalArgumentException("plot is not a PolarPlot");
   }
}
 

/**
 * Standard constructor - constructs a panel for editing the properties of
 * the specified plot.
 *
 * @param plot  the plot, which should be changed.
 */
public DefaultPolarPlotEditor(PolarPlot plot) {
    super(plot);
    this.angleOffsetValue = plot.getAngleOffset();
    this.angleOffset.setText(Double.toString(this.angleOffsetValue));
    this.manualTickUnitValue = plot.getAngleTickUnit().getSize();
    this.manualTickUnit.setText(Double.toString(this.manualTickUnitValue));
}
 

/**
 * Plots the data for a given series.
 * 
 * @param g2  the drawing surface.
 * @param dataArea  the data area.
 * @param info  collects plot rendering info.
 * @param plot  the plot.
 * @param dataset  the dataset.
 * @param seriesIndex  the series index.
 */
public void drawSeries(Graphics2D g2, 
                       Rectangle2D dataArea, 
                       PlotRenderingInfo info,
                       PolarPlot plot,
                       XYDataset dataset,
                       int seriesIndex) {
    
    Polygon poly = new Polygon();
    int numPoints = dataset.getItemCount(seriesIndex);
    for (int i = 0; i < numPoints; i++) {
        double theta = dataset.getXValue(seriesIndex, i);
        double radius = dataset.getYValue(seriesIndex, i);
        Point p = plot.translateValueThetaRadiusToJava2D(theta, radius, 
                dataArea);
        poly.addPoint(p.x, p.y);
    }
    g2.setPaint(getSeriesPaint(seriesIndex));
    g2.setStroke(getSeriesStroke(seriesIndex));
    if (isSeriesFilled(seriesIndex)) {
        Composite savedComposite = g2.getComposite();
        g2.setComposite(AlphaComposite.getInstance(
                AlphaComposite.SRC_OVER, 0.5f));
        g2.fill(poly);
        g2.setComposite(savedComposite);
    }
    else {
        g2.draw(poly);
    }
}
 

/**
 * Draw the radial gridlines - the rings.
 *
 * @param g2  the drawing surface (<code>null</code> not permitted).
 * @param plot  the plot (<code>null</code> not permitted).
 * @param radialAxis  the radial axis (<code>null</code> not permitted).
 * @param ticks  the ticks (<code>null</code> not permitted).
 * @param dataArea  the data area.
 */
@Override
public void drawRadialGridLines(Graphics2D g2, PolarPlot plot, 
        ValueAxis radialAxis, List ticks, Rectangle2D dataArea) {

    ParamChecks.nullNotPermitted(radialAxis, "radialAxis");
    g2.setFont(radialAxis.getTickLabelFont());
    g2.setPaint(plot.getRadiusGridlinePaint());
    g2.setStroke(plot.getRadiusGridlineStroke());

    double centerValue;
    if (radialAxis.isInverted()) {
        centerValue = radialAxis.getUpperBound();
    } else {
        centerValue = radialAxis.getLowerBound();
    }
    Point center = plot.translateToJava2D(0, centerValue, radialAxis, dataArea);

    Iterator iterator = ticks.iterator();
    while (iterator.hasNext()) {
        NumberTick tick = (NumberTick) iterator.next();
        double angleDegrees = plot.isCounterClockwise() 
                ? plot.getAngleOffset() : -plot.getAngleOffset();
        Point p = plot.translateToJava2D(angleDegrees,
                tick.getNumber().doubleValue(), radialAxis, dataArea);
        int r = p.x - center.x;
        int upperLeftX = center.x - r;
        int upperLeftY = center.y - r;
        int d = 2 * r;
        Ellipse2D ring = new Ellipse2D.Double(upperLeftX, upperLeftY, d, d);
        g2.setPaint(plot.getRadiusGridlinePaint());
        g2.draw(ring);
    }
}
 

/**
 * Returns the drawing supplier from the plot.
 *
 * @return The drawing supplier.
 */
@Override
public DrawingSupplier getDrawingSupplier() {
    DrawingSupplier result = null;
    PolarPlot p = getPlot();
    if (p != null) {
        result = p.getDrawingSupplier();
    }
    return result;
}
 

/**
 * Draw the radial gridlines - the rings.
 *
 * @param g2  the drawing surface (<code>null</code> not permitted).
 * @param plot  the plot (<code>null</code> not permitted).
 * @param radialAxis  the radial axis (<code>null</code> not permitted).
 * @param ticks  the ticks (<code>null</code> not permitted).
 * @param dataArea  the data area.
 */
@Override
public void drawRadialGridLines(Graphics2D g2, PolarPlot plot, 
        ValueAxis radialAxis, List ticks, Rectangle2D dataArea) {

    ParamChecks.nullNotPermitted(radialAxis, "radialAxis");
    g2.setFont(radialAxis.getTickLabelFont());
    g2.setPaint(plot.getRadiusGridlinePaint());
    g2.setStroke(plot.getRadiusGridlineStroke());

    double centerValue;
    if (radialAxis.isInverted()) {
        centerValue = radialAxis.getUpperBound();
    } else {
        centerValue = radialAxis.getLowerBound();
    }
    Point center = plot.translateToJava2D(0, centerValue, radialAxis, dataArea);

    Iterator iterator = ticks.iterator();
    while (iterator.hasNext()) {
        NumberTick tick = (NumberTick) iterator.next();
        double angleDegrees = plot.isCounterClockwise() 
                ? plot.getAngleOffset() : -plot.getAngleOffset();
        Point p = plot.translateToJava2D(angleDegrees,
                tick.getNumber().doubleValue(), radialAxis, dataArea);
        int r = p.x - center.x;
        int upperLeftX = center.x - r;
        int upperLeftY = center.y - r;
        int d = 2 * r;
        Ellipse2D ring = new Ellipse2D.Double(upperLeftX, upperLeftY, d, d);
        g2.setPaint(plot.getRadiusGridlinePaint());
        g2.draw(ring);
    }
}
 

/**
 * Returns the drawing supplier from the plot.
 *
 * @return The drawing supplier.
 */
@Override
public DrawingSupplier getDrawingSupplier() {
    DrawingSupplier result = null;
    PolarPlot p = getPlot();
    if (p != null) {
        result = p.getDrawingSupplier();
    }
    return result;
}
 

/**
 * Test that the chart is using an xy plot with time as the domain axis.
 *
 * @param chart  the chart.
 */
private void checkChart(JFreeChart chart) {
    Plot plot = chart.getPlot();
    if (!(plot instanceof PolarPlot)) {
        throw new IllegalArgumentException("plot is not a PolarPlot");
   }
}
 

@Override
public void updatePlotProperties(Plot plot) {
    super.updatePlotProperties(plot);
    PolarPlot pp = (PolarPlot) plot;
    pp.setAngleTickUnit(new NumberTickUnit(this.manualTickUnitValue));
    pp.setAngleOffset(this.angleOffsetValue);
}
 

/**
 * Standard constructor - constructs a panel for editing the properties of
 * the specified plot.
 *
 * @param plot  the plot, which should be changed.
 */
public DefaultPolarPlotEditor(PolarPlot plot) {
    super(plot);
    this.angleOffsetValue = plot.getAngleOffset();
    this.angleOffset.setText(Double.toString(this.angleOffsetValue));
    this.manualTickUnitValue = plot.getAngleTickUnit().getSize();
    this.manualTickUnit.setText(Double.toString(this.manualTickUnitValue));
}
 

/**
 * Test that the chart is using an xy plot with time as the domain axis.
 *
 * @param chart  the chart.
 */
private void checkChart(JFreeChart chart) {
    Plot plot = chart.getPlot();
    if (!(plot instanceof PolarPlot)) {
        throw new IllegalArgumentException("plot is not a PolarPlot");
   }
}
 

/** 
 * Returns the drawing supplier from the plot.
 *
 * @return The drawing supplier.
 */
public DrawingSupplier getDrawingSupplier() {
    DrawingSupplier result = null;
    PolarPlot p = getPlot();
    if (p != null) {
        result = p.getDrawingSupplier();
    }
    return result;
}