Example usage for org.jfree.chart.plot.dial DialPlot mapDatasetToScale

Introduction

In this page you can find the example usage for org.jfree.chart.plot.dial DialPlot mapDatasetToScale.

Prototype

public void mapDatasetToScale(int index, int scaleIndex) 

Source Link

Document

Maps a dataset to a particular scale.

Usage

From source file:se.technipelago.weather.chart.Generator.java

private void createTemperatureDial(float temperature, int humidity, final String filename) throws IOException {
    ValueDataset dataset1 = new DefaultValueDataset(temperature);
    ValueDataset dataset2 = new DefaultValueDataset(humidity);

    // get data for diagrams
    DialPlot plot = new DialPlot();
    plot.setView(0.0, 0.0, 1.0, 1.0);/*from   w w w .j  a  v a 2  s.  c om*/
    plot.setDataset(0, dataset1);
    plot.setDataset(1, dataset2);
    StandardDialFrame dialFrame = new StandardDialFrame();
    dialFrame.setBackgroundPaint(Color.lightGray);
    dialFrame.setForegroundPaint(Color.darkGray);
    plot.setDialFrame(dialFrame);

    GradientPaint gp = new GradientPaint(new Point(), new Color(255, 255, 255), new Point(),
            new Color(170, 170, 220));
    DialBackground db = new DialBackground(gp);
    db.setGradientPaintTransformer(new StandardGradientPaintTransformer(GradientPaintTransformType.VERTICAL));
    plot.setBackground(db);

    // Temperature
    DialTextAnnotation annotation1 = new DialTextAnnotation("\u00B0C");
    annotation1.setFont(new Font("Dialog", Font.BOLD, 10));
    annotation1.setRadius(0.76);

    plot.addLayer(annotation1);

    // Humidity
    DialTextAnnotation annotation2 = new DialTextAnnotation("%");
    annotation2.setFont(new Font("Dialog", Font.BOLD, 10));
    annotation2.setPaint(Color.blue);
    annotation2.setRadius(0.4);

    plot.addLayer(annotation2);

    // Temperature
    DialValueIndicator dvi = new DialValueIndicator(0);
    dvi.setFont(new Font("Dialog", Font.PLAIN, 9));
    dvi.setOutlinePaint(Color.darkGray);
    //dvi.setBackgroundPaint(new Color(0xee, 0xee, 0xf6));
    NumberFormat fmt = new DecimalFormat("#");
    fmt.setMaximumFractionDigits(1);
    fmt.setMinimumIntegerDigits(1);
    dvi.setNumberFormat(fmt);
    dvi.setRadius(0.71);
    dvi.setAngle(-88.0); // -103
    dvi.setInsets(new RectangleInsets(0.0, 8.0, 0.0, 2.0)); // top, left, bottom, right
    plot.addLayer(dvi);

    StandardDialScale scale = new StandardDialScale(-30, 30, -120, -300, 5, 4);
    scale.setTickRadius(0.88);
    scale.setTickLabelOffset(0.15);
    scale.setTickLabelFont(new Font("Dialog", Font.PLAIN, 10));
    NumberFormat fmt3 = new DecimalFormat("#");
    fmt3.setMaximumFractionDigits(0);
    scale.setTickLabelFormatter(fmt3);
    plot.addScale(0, scale);

    // Humidity
    DialValueIndicator dvi2 = new DialValueIndicator(1);
    dvi2.setFont(new Font("Dialog", Font.PLAIN, 9));
    dvi2.setOutlinePaint(Color.blue);
    //dvi2.setBackgroundPaint(new Color(0xee, 0xee, 0xf6));
    NumberFormat fmt2 = new DecimalFormat("#");
    fmt2.setMaximumFractionDigits(0);
    dvi2.setNumberFormat(fmt2);

    dvi2.setRadius(0.59);
    dvi2.setAngle(-90.0); // -77
    dvi2.setInsets(new RectangleInsets(0.0, 1.0, 0.0, 1.0));
    plot.addLayer(dvi2);

    StandardDialScale scale2 = new StandardDialScale(0, 100, -120, -300, 10, 4);
    scale2.setTickRadius(0.50);
    scale2.setTickLabelOffset(0.15);
    scale2.setTickLabelFont(new Font("Dialog", Font.PLAIN, 9));
    scale2.setTickLabelFormatter(fmt3);
    scale2.setMajorTickPaint(Color.blue);
    plot.addScale(1, scale2);
    plot.mapDatasetToScale(1, 1);

    // Add needles.
    // To make the temperature needle the front-most needle,
    // it must be added after humidity needle.
    // Humidity needle.
    DialPointer needle2 = new DialPointer.Pin(1);
    needle2.setRadius(0.50);
    plot.addLayer(needle2);

    // Temperature needle.
    DialPointer needle = new DialPointer.Pointer(0);
    Color darkGreen = new Color(0x15, 0x49, 0x1f);
    ((DialPointer.Pointer) needle).setFillPaint(darkGreen);
    plot.addLayer(needle);

    // Add a cap at the dial center.
    DialCap cap = new DialCap();
    cap.setRadius(0.10);
    plot.setCap(cap);

    JFreeChart chart = new JFreeChart(plot);
    //TextTitle title = new TextTitle("Temperatur/luftfuktighet", new Font("Dialog", Font.BOLD, 12));
    //title.setPaint(Color.DARK_GRAY);
    //chart.setTitle(title);
    chart.setBackgroundPaint(VERY_LIGHT_GRAY);

    OutputStream out = null;
    try {
        out = new FileOutputStream(outputDir != null ? outputDir + "/" + filename : filename);
        ChartUtilities.writeChartAsPNG(out, chart, DIAL_WIDTH, DIAL_HEIGHT);
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

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