private JFreeChart buildDifferenceChart(TimeSeriesCollection dataset, String title) {
// Creat the chart
JFreeChart chart =
ChartFactory.createTimeSeriesChart(
title,
"Date",
"Price",
dataset,
true, // legend
true, // tool tips
false // URLs
);
chart.setBackgroundPaint(Color.white);
XYPlot plot = chart.getXYPlot();
plot.setRenderer(
new XYDifferenceRenderer(new Color(112, 128, 222), new Color(112, 128, 222), false));
plot.setBackgroundPaint(Color.white);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
plot.setAxisOffset(new RectangleInsets(UnitType.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
ValueAxis domainAxis = new DateAxis("Date");
domainAxis.setLowerMargin(0.0);
domainAxis.setUpperMargin(0.0);
plot.setDomainAxis(domainAxis);
plot.setForegroundAlpha(0.5f);
return chart;
}
protected JFreeChart createChart(
DSLAMSource source,
String LID,
Timeinterval time,
Properties properties,
GraphRenderingInput input,
Map<String, Object> colorScheme,
Properties outputProperties)
throws IOException {
JFreeChart res = null;
{
JFreeChart chart = null;
Timeinterval domainAxisTime = null;
// Set 'chart':
{
String domainAxisTitle = null;
// Set 'domainAxisTime':
{
DateFormat format = (DateFormat) colorScheme.get("date.format");
domainAxisTitle = "Time (" + time.toString(format) + ")";
}
chart =
ChartFactory.createTimeSeriesChart(
null, // chart-title
domainAxisTitle, // domain-axis label
null, // value-axis label
null, // dataset
true, // legends required
true, // generate tooltips
false // generate URLs
);
}
XYPlot plot = chart.getXYPlot();
plot.setOrientation(PlotOrientation.VERTICAL);
plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
plot.getRangeAxis().setFixedDimension(15.0);
// Fix the domain axis:
{
fixDateAxisToTimeinterval(plot, time);
domainAxisTime = time;
}
// Set the y-axis:
{
String axisTitle = "Count (/900s)";
ValueAxis a = new LogarithmicAxis(axisTitle);
a.setLowerBound(0);
a.setUpperBound(1000); // TODO: '1000' is '900' rounded up to nearest power of 10!
// TODO: Get unit from data-model!
// TODO: Get upper bound from data-model!
plot.setRangeAxis(a);
}
String title = getTitle();
setDefaults(chart, colorScheme);
setTitle(chart, LID, colorScheme, title, source, time);
String filter = ""; // an empty string implies the default filter!
// Set 'filter':
{
if (input != null) {
Properties p = input.getProperties();
if (p != null) {
String v = p.getProperty("data.filter");
if (v != null) {
filter = v;
}
}
}
}
addData(chart, source, time, filter, properties, colorScheme, outputProperties);
if (outputProperties != null) {
if (domainAxisTime != null) {
outputProperties.setProperty("axis.domain.time", time.toString());
}
}
res = chart;
}
return res;
}