Examples with JFreeChart org.jfree.chart.JFreeChart used on opensource projects

Example 1 with JFreeChart

use of org.jfree.chart.JFreeChart in project GT by Tencent.

the class CPURealTimeChart method createChart.

@Override
public JFreeChart createChart() {
    final JFreeChart chart = ChartFactory.createTimeSeriesChart("CPU实时曲线图", "时间", "CPU%", dataset, true, true, false);
    //设置，不然中文会存在乱码
    chart.getTitle().setFont(new Font("宋体", Font.BOLD, 20));
    XYPlot xyPlot = (XYPlot) chart.getXYPlot();
    ValueAxis domainAxis = xyPlot.getDomainAxis();
    ValueAxis rangeAxis = xyPlot.getRangeAxis();
    domainAxis.setLabelFont(new Font("宋体", Font.BOLD, 14));
    domainAxis.setTickLabelFont(new Font("宋体", Font.BOLD, 12));
    rangeAxis.setLabelFont(new Font("宋体", Font.BOLD, 14));
    rangeAxis.setTickLabelFont(new Font("宋体", Font.BOLD, 12));
    return chart;
}

Example 2 with JFreeChart

use of org.jfree.chart.JFreeChart in project GT by Tencent.

the class PieChart method createChart.

private JFreeChart createChart() {
    this.dataset = new DefaultPieDataset();
    final JFreeChart chart = ChartFactory.createPieChart("内存构成分析", this.dataset, true, true, false);
    chart.getTitle().setFont(new Font("宋体", Font.BOLD, 20));
    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}:{1}"));
    plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12));
    plot.setNoDataMessage("No data available");
    plot.setCircular(false);
    plot.setLabelGap(0.02);
    return chart;
}

Example 3 with JFreeChart

use of org.jfree.chart.JFreeChart in project hudson-2.x by hudson.

the class LoadStatisticsTest method testGraph.

public void testGraph() throws IOException {
    LoadStatistics ls = new LoadStatistics(0, 0) {

        public int computeIdleExecutors() {
            throw new UnsupportedOperationException();
        }

        public int computeTotalExecutors() {
            throw new UnsupportedOperationException();
        }

        public int computeQueueLength() {
            throw new UnsupportedOperationException();
        }
    };
    for (int i = 0; i < 50; i++) {
        ls.totalExecutors.update(4);
        ls.busyExecutors.update(3);
        ls.queueLength.update(3);
    }
    for (int i = 0; i < 50; i++) {
        ls.totalExecutors.update(0);
        ls.busyExecutors.update(0);
        ls.queueLength.update(1);
    }
    JFreeChart chart = ls.createTrendChart(TimeScale.SEC10).createChart();
    BufferedImage image = chart.createBufferedImage(400, 200);
    File tempFile = File.createTempFile("chart-", "png");
    FileOutputStream os = new FileOutputStream(tempFile);
    try {
        ImageIO.write(image, "PNG", os);
    } finally {
        IOUtils.closeQuietly(os);
        tempFile.delete();
    }
}

Example 4 with JFreeChart

use of org.jfree.chart.JFreeChart in project Openfire by igniterealtime.

the class GraphEngine method createChart.

private JFreeChart createChart(String title, XYPlot plot) {
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, false);
    chart.setBackgroundPaint(Color.white);
    return chart;
}

Example 5 with JFreeChart

use of org.jfree.chart.JFreeChart in project Openfire by igniterealtime.

the class GraphEngine method generateSparklineAreaChart.

/**
     * Generates a SparkLine Time Area Chart.
     * @param key
     * @param stats
     * @param startTime
     * @param endTime
     * @return chart
     */
private JFreeChart generateSparklineAreaChart(String key, String color, Statistic[] stats, long startTime, long endTime, int dataPoints) {
    Color backgroundColor = getBackgroundColor();
    XYDataset dataset = populateData(key, stats, startTime, endTime, dataPoints);
    JFreeChart chart = ChartFactory.createXYAreaChart(// chart title
    null, // xaxis label
    null, // yaxis label
    null, // data
    dataset, PlotOrientation.VERTICAL, // include legend
    false, // tooltips?
    false, // URLs?
    false);
    chart.setBackgroundPaint(backgroundColor);
    chart.setBorderVisible(false);
    chart.setBorderPaint(null);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setForegroundAlpha(1.0f);
    plot.setDomainGridlinesVisible(false);
    plot.setDomainCrosshairVisible(false);
    plot.setRangeCrosshairVisible(false);
    plot.setBackgroundPaint(backgroundColor);
    plot.setRangeGridlinesVisible(false);
    GraphDefinition graphDef = GraphDefinition.getDefinition(color);
    Color plotColor = graphDef.getInlineColor(0);
    plot.getRenderer().setSeriesPaint(0, plotColor);
    plot.getRenderer().setBaseItemLabelsVisible(false);
    plot.getRenderer().setBaseOutlinePaint(backgroundColor);
    plot.setOutlineStroke(null);
    plot.setDomainGridlinePaint(null);
    NumberAxis xAxis = (NumberAxis) chart.getXYPlot().getDomainAxis();
    xAxis.setLabel(null);
    xAxis.setTickLabelsVisible(true);
    xAxis.setTickMarksVisible(true);
    xAxis.setAxisLineVisible(false);
    xAxis.setNegativeArrowVisible(false);
    xAxis.setPositiveArrowVisible(false);
    xAxis.setVisible(false);
    NumberAxis yAxis = (NumberAxis) chart.getXYPlot().getRangeAxis();
    yAxis.setTickLabelsVisible(false);
    yAxis.setTickMarksVisible(false);
    yAxis.setAxisLineVisible(false);
    yAxis.setNegativeArrowVisible(false);
    yAxis.setPositiveArrowVisible(false);
    yAxis.setVisible(false);
    return chart;
}