public void drawChart(String filename, int width, int height) throws IOException { // Create plot NumberAxis xAxis = new NumberAxis(xAxisLabel); NumberAxis yAxis = new NumberAxis(yAxisLabel); XYSplineRenderer renderer = new XYSplineRenderer(); XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(4, 4, 4, 4)); // Create chart JFreeChart chart = new JFreeChart(chartTitle, JFreeChart.DEFAULT_TITLE_FONT, plot, true); ChartUtilities.applyCurrentTheme(chart); ChartPanel chartPanel = new ChartPanel(chart, false); // Draw png BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR); Graphics graphics = bi.getGraphics(); chartPanel.setBounds(0, 0, width, height); chartPanel.paint(graphics); ImageIO.write(bi, "png", new File(filename)); }
public void drawChart(String filename, int width, int height) throws IOException { // Create plot NumberAxis xAxis = new NumberAxis(xAxisLabel); NumberAxis yAxis = new NumberAxis(yAxisLabel); XYSplineRenderer renderer = new XYSplineRenderer(); XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(4, 4, 4, 4)); // Create chart JFreeChart chart = new JFreeChart(chartTitle, JFreeChart.DEFAULT_TITLE_FONT, plot, true); ChartUtilities.applyCurrentTheme(chart); ChartPanel chartPanel = new ChartPanel(chart, false); // Draw png BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR); Graphics graphics = bi.getGraphics(); chartPanel.setBounds(0, 0, width, height); chartPanel.paint(graphics); ImageIO.write(bi, "png", new File(filename)); }
chart.addSubtitle(legend); ChartUtilities.applyCurrentTheme(chart);