public void addSeries(String yaxisName, TimeSeries series) {
NumberAxis axis2 = new NumberAxis(yaxisName);
axis2.setFixedDimension(10.0);
axis2.setAutoRangeIncludesZero(false);
XYPlot plot = (XYPlot) chart.getPlot();
plot.setRangeAxis(axisNum, axis2);
plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);
TimeSeriesCollection dataset = new TimeSeriesCollection();
dataset.addSeries(series);
plot.setDataset(axisNum, dataset);
plot.mapDatasetToRangeAxis(axisNum, axisNum);
XYItemRenderer renderer2 = new StandardXYItemRenderer();
plot.setRenderer(axisNum, renderer2);
axisNum++;
}
/**
* Generates a chart in PNG format.
*
* @param outputFile the output file, it should exist.
* @param pxWidth the image width in pixels.
* @param pxHeight the image height in pixels.
* @param chartTitle the chart title, may be null.
* @param xAxisTitle the x axis title
* @param yDataSeriesRange the axis range (null for auto)
* @param yDataSeriesTitles the Y axis titles.
* @param timeValuesInSeconds the time values in seconds
* @param yDataSeries the Y axis value series.
* @param yDataSeriesColors the Y axis value series drawing colors.
* @param yDataSeriesTickSuffix TODO explain argument yDataSeriesTickSuffix
* @param drawBorder draw, or not, the border.
* @param backgroundColor the chart background color.
*/
final void generatePngChart(
File outputFile,
int pxWidth,
int pxHeight,
String chartTitle,
String xAxisTitle,
String[] yDataSeriesTitles,
double[] timeValuesInSeconds,
double[][] yDataSeriesRange,
double[][] yDataSeries,
Color[] yDataSeriesColors,
String[] yDataSeriesTickSuffix,
boolean drawBorder,
Color backgroundColor) {
// Domain axis
NumberAxis xAxis = new NumberAxis(xAxisTitle);
xAxis.setFixedDimension(CHART_AXIS_DIMENSION);
xAxis.setLabelPaint(Color.black);
xAxis.setTickLabelPaint(Color.black);
double maxSeconds = getMaxValue(timeValuesInSeconds);
TimeAxisResolution xAxisRes = TimeAxisResolution.findTimeUnit(maxSeconds);
xAxis.setTickUnit(new NumberTickUnit(xAxisRes.tickStep));
double[] scaledTimeValues = xAxisRes.scale(timeValuesInSeconds);
String tickSymbol =
I18N.getString(locale, "running.job.details.chart.timeunit.symbol." + xAxisRes.name());
xAxis.setNumberFormatOverride(new DecimalFormat("###.##'" + tickSymbol + "'"));
// First dataset
String firstDataSetTitle = yDataSeriesTitles[0];
XYDataset firstDataSet = createXYDataSet(firstDataSetTitle, scaledTimeValues, yDataSeries[0]);
Color firstDataSetColor = yDataSeriesColors[0];
// First range axis
NumberAxis firstYAxis = new NumberAxis(firstDataSetTitle);
firstYAxis.setFixedDimension(CHART_AXIS_DIMENSION);
setAxisRange(firstYAxis, yDataSeriesRange[0]);
firstYAxis.setLabelPaint(firstDataSetColor);
firstYAxis.setTickLabelPaint(firstDataSetColor);
String firstAxisTickSuffix = yDataSeriesTickSuffix[0];
if (firstAxisTickSuffix != null && !firstAxisTickSuffix.isEmpty()) {
firstYAxis.setNumberFormatOverride(new DecimalFormat("###.##'" + firstAxisTickSuffix + "'"));
}
// Create the plot with domain axis and first range axis
XYPlot plot = new XYPlot(firstDataSet, xAxis, firstYAxis, null);
XYLineAndShapeRenderer firstRenderer = new XYLineAndShapeRenderer(true, false);
plot.setRenderer(firstRenderer);
plot.setOrientation(PlotOrientation.VERTICAL);
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
firstRenderer.setSeriesPaint(0, firstDataSetColor);
// Now iterate on next axes
for (int i = 1; i < yDataSeries.length; i++) {
// Create axis
String seriesTitle = yDataSeriesTitles[i];
Color seriesColor = yDataSeriesColors[i];
NumberAxis yAxis = new NumberAxis(seriesTitle);
yAxis.setFixedDimension(CHART_AXIS_DIMENSION);
setAxisRange(yAxis, yDataSeriesRange[i]);
yAxis.setLabelPaint(seriesColor);
yAxis.setTickLabelPaint(seriesColor);
String yAxisTickSuffix = yDataSeriesTickSuffix[i];
if (yAxisTickSuffix != null && !yAxisTickSuffix.isEmpty()) {
yAxis.setNumberFormatOverride(new DecimalFormat("###.##'" + yAxisTickSuffix + "'"));
}
// Create dataset and add axis to plot
plot.setRangeAxis(i, yAxis);
plot.setRangeAxisLocation(i, AxisLocation.BOTTOM_OR_LEFT);
plot.setDataset(i, createXYDataSet(seriesTitle, scaledTimeValues, yDataSeries[i]));
plot.mapDatasetToRangeAxis(i, i);
XYItemRenderer renderer = new StandardXYItemRenderer();
renderer.setSeriesPaint(0, seriesColor);
plot.setRenderer(i, renderer);
}
// Create the chart
JFreeChart chart = new JFreeChart(chartTitle, JFreeChart.DEFAULT_TITLE_FONT, plot, false);
// Customize rendering
chart.setBackgroundPaint(Color.white);
chart.setBorderVisible(true);
chart.setBorderPaint(Color.BLACK);
// Render image
try {
ChartUtilities.saveChartAsPNG(outputFile, chart, pxWidth, pxHeight);
} catch (IOException e) {
LOG.error("Chart export failed", e);
}
}