List of usage examples for org.jfree.chart.plot.dial DialValueIndicator setAngle
public void setAngle(double angle)
From source file:meter_rpm.Stackoverflow.java
private ChartPanel buildDialPlot(int minimumValue, int maximumValue, int majorTickGap) { DialPlot plot = new DialPlot(); plot.setView(0.0D, 0.0D, 1.0D, 1.0D); plot.setDataset(0, dataset0);/* w ww.j av a2 s .co m*/ plot.setDataset(1, dataset1); plot.setDialFrame(new StandardDialFrame()); DialTextAnnotation dialtextannotation = new DialTextAnnotation("RPM"); dialtextannotation.setFont(new Font("Dialog", 1, 12)); dialtextannotation.setRadius(0.69999999999999996D); plot.addLayer(dialtextannotation); // value indicator uses the real data set //plot.addLayer(new DialValueIndicator(0)); DialValueIndicator dialvalueindicator = new DialValueIndicator(0); dialvalueindicator.setFont(new Font("Dialog", Font.BOLD, 12)); dialvalueindicator.setOutlinePaint(Color.YELLOW); dialvalueindicator.setRadius(0.6D); dialvalueindicator.setAngle(-90D); dialvalueindicator.setTemplateValue(1000); plot.addLayer(dialvalueindicator); org.jfree.chart.plot.dial.DialPointer.Pin pin1 = new org.jfree.chart.plot.dial.DialPointer.Pin(1); pin1.setRadius(0.55000000000000004D); plot.addPointer(pin1); // needle uses constrained data set plot.addLayer(new DialPointer.Pointer(0)); StandardDialScale scale = new StandardDialScale(0d, 6000, -110, -320, majorTickGap, 4); scale.setTickRadius(0.88); scale.setTickLabelOffset(0.20); scale.setTickLabelFormatter(new DecimalFormat("####")); plot.addScale(0, scale); StandardDialScale standarddialscale1 = new StandardDialScale(0D, 30D, -120D, -300D, 5D, 4); standarddialscale1.setTickRadius(0.5D); standarddialscale1.setTickLabelOffset(0.14999999999999999D); standarddialscale1.setTickLabelFont(new Font("Dialog", 0, 10)); standarddialscale1.setMajorTickPaint(Color.RED); standarddialscale1.setMinorTickPaint(Color.RED); plot.addScale(1, standarddialscale1); plot.mapDatasetToScale(1, 1); JFreeChart jfreechart = new JFreeChart(plot); jfreechart.setTitle("ENGINE RPM & MANIFOLD PRESSURE"); ChartPanel chartpanel = new ChartPanel(jfreechart); chartpanel.setPreferredSize(new Dimension(400, 400)); return chartpanel; }
From source file:it.alus.GPSreceiver.instruments.Speedometer.java
public Speedometer(int Vs0, int Vfe, int Vs, int Vno, int Vne, int endScaleKmh) { super(null);/* w ww.java 2 s . c om*/ currentGroundSpeedKmh = 0; if (!setArcs(Vs0, Vfe, Vs, Vno, Vne, endScaleKmh)) { this.Vx = 90; this.Vy = 100; this.Vs0 = 45; this.Vs = 55; this.Vfe = 86; this.Va = 135; this.Vno = 160; this.Vne = 180; this.endScale = 185; } groundSpeedDataset = new DefaultValueDataset(0); totalSpeedDataset = new DefaultValueDataset(0); DialPlot dialplot = new DialPlot(); dialplot.setDataset(0, groundSpeedDataset); dialplot.setDataset(1, totalSpeedDataset); StandardDialFrame dialFrame = new StandardDialFrame(); dialFrame.setBackgroundPaint(Color.lightGray); dialFrame.setForegroundPaint(Color.gray); DialBackground db = new DialBackground(Color.black); dialplot.setBackground(db); dialplot.setDialFrame(dialFrame); DialTextAnnotation dialtextannotation = new DialTextAnnotation("Km/h"); dialtextannotation.setFont(new Font("Arial", 1, 14)); dialtextannotation.setRadius(0.4D); dialtextannotation.setPaint(Color.lightGray); dialplot.addLayer(dialtextannotation); //DialValueIndicator dialvalueindicator = new DialValueIndicator(0); //dialplot.addLayer(dialvalueindicator); DialValueIndicator groundIndicator = new DialValueIndicator(0); groundIndicator.setFont(new Font("Dialog", 0, 10)); groundIndicator.setOutlinePaint(Color.green); groundIndicator.setRadius(0.3); groundIndicator.setAngle(-110D); dialplot.addLayer(groundIndicator); DialValueIndicator realIndicator = new DialValueIndicator(1); realIndicator.setFont(new Font("Dialog", 0, 10)); realIndicator.setOutlinePaint(Color.cyan); realIndicator.setRadius(0.3); realIndicator.setAngle(-70); dialplot.addLayer(realIndicator); StandardDialScale scale = new StandardDialScale(0, endScale, 90, -350, 10, 5); scale.setFirstTickLabelVisible(true); scale.setTickRadius(0.9D); scale.setTickLabelOffset(0.14999999999999999D); NumberFormat formatter = new DecimalFormat("#"); scale.setTickLabelFormatter(formatter); scale.setTickLabelFont(new Font("Arial", Font.BOLD, 16)); scale.setMajorTickPaint(Color.white); scale.setMinorTickPaint(Color.lightGray); scale.setTickLabelPaint(Color.white); dialplot.addScale(0, scale); dialplot.addPointer(new org.jfree.chart.plot.dial.DialPointer.Pin()); DialCap dialcap = new DialCap(); dialcap.setRadius(0.10); dialcap.setFillPaint(Color.lightGray); dialplot.setCap(dialcap); jChart = new JFreeChart(dialplot); StandardDialRange standarddialrange = new StandardDialRange(this.Vne, endScale, Color.red); standarddialrange.setInnerRadius(0.54D); standarddialrange.setOuterRadius(0.56D); dialplot.addLayer(standarddialrange); StandardDialRange standarddialrange1 = new StandardDialRange(this.Vno, this.Vne, Color.yellow); standarddialrange1.setInnerRadius(0.54D); standarddialrange1.setOuterRadius(0.56D); dialplot.addLayer(standarddialrange1); StandardDialRange standarddialrange2 = new StandardDialRange(this.Vs, this.Vno, Color.green); standarddialrange2.setInnerRadius(0.54D); standarddialrange2.setOuterRadius(0.56D); dialplot.addLayer(standarddialrange2); StandardDialRange standarddialrange3 = new StandardDialRange(this.Vs0, this.Vfe, Color.white); standarddialrange3.setInnerRadius(0.50D); standarddialrange3.setOuterRadius(0.52D); dialplot.addLayer(standarddialrange3); //dialplot.removePointer(0); Pointer realPointer = new Pointer(1); realPointer.setFillPaint(Color.cyan); dialplot.addPointer(realPointer); Pointer groundPointer = new Pointer(0); groundPointer.setFillPaint(Color.green); dialplot.addPointer(groundPointer); /* PER NASCONDERE GLI INDICATORI groundIndicator.setVisible(false); realIndicator.setVisible(false); groundPointer.setVisible(false); realPointer.setVisible(false); */ super.setChart(jChart); super.setPreferredSize(new Dimension(400, 400)); }
From source file:netplot.DialPlotPanel.java
public void addPlot() throws NetPlotException { chart.setTitle(plotTitle);//from w ww. j a v a 2 s . c o m DialTextAnnotation annotation = new DialTextAnnotation(plotName); annotation.setFont(new Font("Dialog", Font.BOLD, 14)); if (plotCount == 0) { DialValueIndicator dvi = new DialValueIndicator(0); dvi.setFont(new Font("Dialog", Font.PLAIN, 10)); annotation.setRadius(0.7); annotation.setPaint(DialPlotPanel.Plot0Color); dvi.setRadius(0.60); dvi.setAngle(-103.0); dvi.setOutlinePaint(DialPlotPanel.Plot0Color); StandardDialScale scale = new StandardDialScale(minScaleValue, maxScaleValue, -120, -300, yAxisTickCount, yAxisTickCount / 2 - 1); scale.setTickRadius(0.88); scale.setTickLabelOffset(0.15); scale.setTickLabelFont(new Font("Dialog", Font.PLAIN, 14)); plot.addScale(0, scale); plot.mapDatasetToScale(0, 0); DialPointer.Pointer p = new DialPointer.Pointer(0); p.setFillPaint(DialPlotPanel.Plot0Color); plot.addPointer(p); plot.addLayer(annotation); plot.addLayer(dvi); } else if (plotCount == 1) { annotation.setRadius(0.8); annotation.setPaint(DialPlotPanel.Plot1Color); DialValueIndicator dvi = new DialValueIndicator(1); dvi.setFont(new Font("Dialog", Font.PLAIN, 10)); dvi.setRadius(0.60); dvi.setAngle(-77.0); dvi.setOutlinePaint(DialPlotPanel.Plot1Color); StandardDialScale scale2 = new StandardDialScale(minScaleValue, maxScaleValue, -120, -300, yAxisTickCount, yAxisTickCount / 2 - 1); scale2.setTickRadius(0.50); scale2.setTickLabelOffset(0.15); scale2.setTickLabelFont(new Font("Dialog", Font.PLAIN, 10)); scale2.setMajorTickPaint(DialPlotPanel.Plot1Color); plot.addScale(1, scale2); plot.mapDatasetToScale(1, 1); DialPointer.Pointer p = new DialPointer.Pointer(1); p.setFillPaint(DialPlotPanel.Plot1Color); p.setRadius(0.55); plot.addPointer(p); plot.addLayer(annotation); plot.addLayer(dvi); } else { throw new NetPlotException( "DialPlotPanel.addPlot(). Only two plots available on this plot, this is the third."); } plotCount++; }
From source file:ecg.ecgshow.ECGShowUI.java
private void createGuardData() { GuardDataPanel = new JPanel(); GuardDataPanel.setBackground(new Color(0, 150, 255)); // GuardDataPanel.setBounds(); // BoxLayout layout=new BoxLayout(GuardDataPanel,BoxLayout.Y_AXIS); // GuardDataPanel.setLayout(layout); GroupLayout layout = new GroupLayout(GuardDataPanel); GuardDataPanel.setLayout(layout);// w ww. j a va2 s.c om JPanel temperatureData = new JPanel(); temperatureData.setLayout(new FlowLayout()); // temperatureData.setLayout(null); // temperatureData.setBounds(0,0,(int) (WIDTH * 0.14), (int) (HEIGHT * 0.15)); temperatureData.setSize((int) (WIDTH * 0.16), (int) (HEIGHT * 0.11)); temperatureData.setBackground(new Color(0, 150, 255)); temperatureLabel = new JLabel("--.- "); temperatureLabel.setFont(loadFont("LED.tff", (float) (HEIGHT * 0.070))); temperatureLabel.setBackground(new Color(0, 150, 255)); temperatureLabel.setForeground(Color.RED); // temperatureLabel.setBounds(0,0,200,100); temperatureLabel.setOpaque(true); JLabel temperatureLabelName = new JLabel(" "); temperatureLabelName.setFont(new Font("SansSerif", 0, (int) (HEIGHT * 0.020))); temperatureLabelName.setBackground(new Color(0, 150, 255)); temperatureLabelName.setForeground(Color.BLACK); temperatureLabelName.setBounds(0, 0, 100, 100); temperatureLabelName.setOpaque(true); //?? temperatureData.add(temperatureLabelName); temperatureData.add(temperatureLabel); // JPanel emptyPanel=new JPanel(); // emptyPanel.setSize((int)(WIDTH*0.14),(int)(HEIGHT*0.2)); // emptyPanel.setBackground(new Color(0,150,255)); // GuardDataPanel.add(emptyPanel); JPanel lightValueData = new JPanel(); lightValueData.setLayout(new BorderLayout()); lightValueData.setBackground(new Color(0, 150, 255)); // lightValueData.setBounds(0,(int)(HEIGHT*0.28),(int)(WIDTH*0.14),(int)(HEIGHT*0.30)); lightValueData.setSize((int) (WIDTH * 0.14), (int) (HEIGHT * 0.22)); lightValueDataSet = new DefaultValueDataset(); DialPlot lightValueDialPlot = new DialPlot(); lightValueDialPlot.setDataset(lightValueDataSet); StandardDialFrame dialFrame = new StandardDialFrame(); dialFrame.setVisible(false); lightValueDialPlot.setDialFrame(dialFrame); GradientPaint gradientpaint = new GradientPaint(new Point(), new Color(255, 255, 255), new Point(), new Color(170, 170, 170)); DialBackground dialBackground = new DialBackground(gradientpaint); dialBackground.setGradientPaintTransformer( new StandardGradientPaintTransformer(GradientPaintTransformType.VERTICAL)); lightValueDialPlot.setBackground(dialBackground); // ?? DialTextAnnotation dialtextannotation = new DialTextAnnotation(""); dialtextannotation.setFont(new Font("Dialog", 0, (int) (0.016 * HEIGHT))); dialtextannotation.setRadius(0.1D); lightValueDialPlot.addLayer(dialtextannotation); DialValueIndicator dialValueIndicator = new DialValueIndicator(0); dialValueIndicator.setFont(new Font("Dialog", Font.PLAIN, (int) (0.011 * HEIGHT))); dialValueIndicator.setOutlinePaint(Color.darkGray); dialValueIndicator.setRadius(0.4D); dialValueIndicator.setAngle(-90.0); lightValueDialPlot.addLayer(dialValueIndicator); StandardDialScale dialScale = new StandardDialScale(); dialScale.setLowerBound(0D); // dialScale.setUpperBound(1024); // dialScale.setMajorTickIncrement(100); dialScale.setStartAngle(-120D); // 120,? dialScale.setExtent(-300D); // 300,? dialScale.setTickRadius(0.85D); // , dialScale.setTickLabelOffset(0.1D); // ,0 bloodDialRange = new StandardDialRange(500D, 750D, Color.red); bloodDialRange.setInnerRadius(0.52000000000000002D); bloodDialRange.setOuterRadius(0.55000000000000004D); lightValueDialPlot.addLayer(bloodDialRange); // bubbleDialRange = new StandardDialRange(0D, 500D, Color.black); bubbleDialRange.setInnerRadius(0.52000000000000002D); bubbleDialRange.setOuterRadius(0.55000000000000004D); lightValueDialPlot.addLayer(bubbleDialRange); // normalDialRange = new StandardDialRange(750D, 1024D, Color.green); normalDialRange.setInnerRadius(0.52000000000000002D); normalDialRange.setOuterRadius(0.55000000000000004D); lightValueDialPlot.addLayer(normalDialRange); dialScale.setTickLabelFont(new Font("Dialog", 0, (int) (0.011 * HEIGHT))); // lightValueDialPlot.addScale(0, dialScale); DialPointer.Pointer pointer = new DialPointer.Pointer(); lightValueDialPlot.addPointer(pointer); lightValueDialPlot.mapDatasetToScale(0, 0); DialCap dialCap = new DialCap(); dialCap.setRadius(0.07D); JFreeChart lightValueDialChart = new JFreeChart(lightValueDialPlot); lightValueDialChart.setBackgroundPaint(new Color(0, 150, 255)); lightValueDialChart.setTitle("??"); lightValueDialChart.getTitle().setFont(new Font("SansSerif", 0, (int) (HEIGHT * 0.020))); ChartPanel lightValueDialChartPanel = new ChartPanel(lightValueDialChart, (int) (WIDTH * 0.15), (int) (HEIGHT * 0.27), 0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE, true, true, false, true, false, false); lightValueData.add(lightValueDialChartPanel, BorderLayout.CENTER); layout.setHorizontalGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(GroupLayout.Alignment.TRAILING) .addComponent(temperatureData, GroupLayout.Alignment.LEADING) .addComponent(lightValueData, GroupLayout.Alignment.LEADING)))); layout.setVerticalGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap((int) (HEIGHT * 0.05), (int) (HEIGHT * 0.05), (int) (HEIGHT * 0.05)) .addComponent(temperatureData) .addGap((int) (HEIGHT * 0.05), (int) (HEIGHT * 0.05), (int) (HEIGHT * 0.05)) .addComponent(lightValueData) .addGap((int) (HEIGHT * 0.05), (int) (HEIGHT * 0.05), (int) (HEIGHT * 0.05)))); // JPanel alarmMessage=new JPanel(); // alarmMessage.setBackground(new Color(0,150,255)); // alarmMessLabel=new JLabel(""); // alarmMessLabel.setFont(new Font("SansSerif", 0, (int)(HEIGHT *0.020))); // alarmMessLabel.setBackground(new Color(0,150,255)); // alarmMessage.add(alarmMessLabel); // GuardDataPanel.add(alarmMessage); }
From source file:se.technipelago.weather.chart.Generator.java
private void createWindDial(float speed, float high, final String filename) throws IOException { ValueDataset dataset1 = new DefaultValueDataset(speed); ValueDataset dataset2 = new DefaultValueDataset(high); // get data for diagrams DialPlot plot = new DialPlot(); plot.setView(0.0, 0.0, 1.0, 1.0);//w ww .j a va2 s.co m 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); // Wind Speed DialTextAnnotation annotation1 = new DialTextAnnotation("m/s"); annotation1.setFont(new Font("Dialog", Font.BOLD, 10)); annotation1.setRadius(0.76); plot.addLayer(annotation1); 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(-89.0); // -103 dvi.setInsets(new RectangleInsets(0.0, 2.0, 0.0, 2.0)); // top, left, bottom, right plot.addLayer(dvi); StandardDialScale scale = new StandardDialScale(0, 20, -120, -300, 1, 0); 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); // Add needles. // To make the average speed needle the front-most needle, // it must be added after high speed needle. // High speed needle. DialPointer needle2 = new DialPointer.Pin(1); needle2.setRadius(0.62); plot.addLayer(needle2); // Average speed 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("Vindhastighet", 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(); } } }
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);/* w ww .j a v a 2 s . c o m*/ 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(); } } }