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

Introduction

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

Prototype

public void setInsets(RectangleInsets insets) 

Source Link

Document

Sets the insets for the plot and sends a PlotChangeEvent to all registered listeners.

Usage

From source file:it.marcoberri.mbmeteo.action.chart.GetLastUDial.java

/**
 * Processes requests for both HTTP/*from ww  w .j ava 2s.c  o  m*/
 * <code>GET</code> and
 * <code>POST</code> methods.
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    log.debug("start : " + this.getClass().getName());

    final HashMap<String, String> params = getParams(request.getParameterMap());
    final Integer dimy = Default.toInteger(params.get("dimy"), 600);
    final Integer dimx = Default.toInteger(params.get("dimx"), 800);

    Meteolog meteolog = ds.find(Meteolog.class).order("-time").limit(1).get();

    DefaultValueDataset dataset = new DefaultValueDataset(meteolog.getOutdoorHumidity());

    // get data for diagrams
    DialPlot plot = new DialPlot();
    plot.setInsets(RectangleInsets.ZERO_INSETS);
    //plot.setView(0.1, 0.1, 0.9, 0.9);
    // plot.set
    plot.setDataset(0, dataset);

    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.CENTER_HORIZONTAL));
    plot.setBackground(db);

    StandardDialScale scale = new StandardDialScale();
    scale.setLowerBound(0);
    scale.setUpperBound(100);
    scale.setTickLabelOffset(0.14);
    scale.setTickLabelFont(new Font("Dialog", Font.PLAIN, 10));
    plot.addScale(0, scale);
    plot.setInsets(RectangleInsets.ZERO_INSETS);

    DialPointer needle = new DialPointer.Pointer(0);

    plot.addLayer(needle);

    JFreeChart chart1 = new JFreeChart(plot);
    chart1.setTitle("Humidity %");

    final File f = File.createTempFile("mbmeteo", ".jpg");
    ChartUtilities.saveChartAsJPEG(f, chart1, dimx, dimy);

    response.setContentType("image/jpeg");
    response.setHeader("Content-Length", "" + f.length());
    response.setHeader("Content-Disposition", "inline; filename=\"" + f.getName() + "\"");
    final OutputStream out = response.getOutputStream();
    final FileInputStream in = new FileInputStream(f.toString());
    final int size = in.available();
    final byte[] content = new byte[size];
    in.read(content);
    out.write(content);
    in.close();
    out.close();
}

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