@Override
protected JFreeChart createGraph() {
final JFreeChart chart =
ChartFactory.createLineChart(
null, // chart title
null, // unused
yLabel, // range axis label
categoryDataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
final LegendTitle legend = chart.getLegend();
legend.setPosition(RectangleEdge.RIGHT);
chart.setBackgroundPaint(Color.white);
final CategoryPlot plot = chart.getCategoryPlot();
// plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
plot.setBackgroundPaint(Color.WHITE);
plot.setOutlinePaint(null);
plot.setRangeGridlinesVisible(true);
plot.setRangeGridlinePaint(Color.black);
CategoryAxis domainAxis = new ShiftedCategoryAxis(null);
plot.setDomainAxis(domainAxis);
domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);
domainAxis.setLowerMargin(0.0);
domainAxis.setUpperMargin(0.0);
domainAxis.setCategoryMargin(0.0);
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setLowerBound(0);
rangeAxis.setAutoRange(true);
final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
renderer.setBaseStroke(new BasicStroke(2.0f));
ColorPalette.apply(renderer);
// crop extra space around the graph
plot.setInsets(new RectangleInsets(5.0, 0, 0, 5.0));
return chart;
}
/** Creates a trend chart. */
public JFreeChart createChart(CategoryDataset ds) {
final JFreeChart chart =
ChartFactory.createLineChart(
null, // chart title
null, // unused
null, // range axis label
ds, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
chart.setBackgroundPaint(Color.white);
final CategoryPlot plot = chart.getCategoryPlot();
plot.setBackgroundPaint(Color.WHITE);
plot.setOutlinePaint(null);
plot.setRangeGridlinesVisible(true);
plot.setRangeGridlinePaint(Color.black);
final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
renderer.setBaseStroke(new BasicStroke(3));
configureRenderer(renderer);
final CategoryAxis domainAxis = new NoOverlapCategoryAxis(null);
plot.setDomainAxis(domainAxis);
domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);
domainAxis.setLowerMargin(0.0);
domainAxis.setUpperMargin(0.0);
domainAxis.setCategoryMargin(0.0);
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// crop extra space around the graph
plot.setInsets(new RectangleInsets(0, 0, 0, 5.0));
return chart;
}
protected void configureRenderer(LineAndShapeRenderer renderer) {
renderer.setBaseStroke(new BasicStroke(3));
for (int i = 0; i < series.size(); i++) renderer.setSeriesPaint(i, series.get(i).color);
}