Java Code Examples for org.jfree.chart.axis.DateAxis#setTimeZone()

@Override
protected void updatePlotter() {
	int categoryCount = prepareData();
	String maxClassesProperty = ParameterService
			.getParameterValue(MainFrame.PROPERTY_RAPIDMINER_GUI_PLOTTER_COLORS_CLASSLIMIT);
	int maxClasses = 20;
	try {
		if (maxClassesProperty != null) {
			maxClasses = Integer.parseInt(maxClassesProperty);
		}
	} catch (NumberFormatException e) {
		// LogService.getGlobal().log("Series plotter: cannot parse property 'rapidminer.gui.plotter.colors.classlimit', using maximal 20 different classes.",
		// LogService.WARNING);
		LogService.getRoot().log(Level.WARNING,
				"com.rapidminer.gui.plotter.charts.SeriesChartPlotter.parsing_property_error");
	}
	boolean createLegend = categoryCount > 0 && categoryCount < maxClasses;

	JFreeChart chart = createChart(this.dataset, createLegend);

	// set the background color for the chart...
	chart.setBackgroundPaint(Color.white);

	// domain axis
	if (axis[INDEX] >= 0) {
		if (!dataTable.isNominal(axis[INDEX])) {
			if (dataTable.isDate(axis[INDEX]) || dataTable.isDateTime(axis[INDEX])) {
				DateAxis domainAxis = new DateAxis(dataTable.getColumnName(axis[INDEX]));
				domainAxis.setTimeZone(Tools.getPreferredTimeZone());
				chart.getXYPlot().setDomainAxis(domainAxis);
				if (getRangeForDimension(axis[INDEX]) != null) {
					domainAxis.setRange(getRangeForDimension(axis[INDEX]));
				}
				domainAxis.setLabelFont(LABEL_FONT_BOLD);
				domainAxis.setTickLabelFont(LABEL_FONT);
				domainAxis.setVerticalTickLabels(isLabelRotating());
			}
		} else {
			LinkedHashSet<String> values = new LinkedHashSet<String>();
			for (DataTableRow row : dataTable) {
				String stringValue = dataTable.mapIndex(axis[INDEX], (int) row.getValue(axis[INDEX]));
				if (stringValue.length() > 40) {
					stringValue = stringValue.substring(0, 40);
				}
				values.add(stringValue);
			}
			ValueAxis categoryAxis = new SymbolAxis(dataTable.getColumnName(axis[INDEX]),
					values.toArray(new String[values.size()]));
			categoryAxis.setLabelFont(LABEL_FONT_BOLD);
			categoryAxis.setTickLabelFont(LABEL_FONT);
			categoryAxis.setVerticalTickLabels(isLabelRotating());
			chart.getXYPlot().setDomainAxis(categoryAxis);
		}
	}

	// legend settings
	LegendTitle legend = chart.getLegend();
	if (legend != null) {
		legend.setPosition(RectangleEdge.TOP);
		legend.setFrame(BlockBorder.NONE);
		legend.setHorizontalAlignment(HorizontalAlignment.LEFT);
		legend.setItemFont(LABEL_FONT);
	}

	AbstractChartPanel panel = getPlotterPanel();
	if (panel == null) {
		panel = createPanel(chart);
	} else {
		panel.setChart(chart);
	}

	// ATTENTION: WITHOUT THIS WE GET SEVERE MEMORY LEAKS!!!
	panel.getChartRenderingInfo().setEntityCollection(null);
}
 

@Override
public void configureChart(JFreeChart chart) {
    // this setup is required before any data is in the chart
    // or auto ranging on the y-axis breaks
    if (app.getBooleanProperty("chartRelativeTime")) {
        LineChartBuilder.setRelativeAxis(chart, app.getMinSystemTime());
    }
    else {
        LineChartBuilder.setAbsoluteAxis(chart);
    }

    DateAxis axis = (DateAxis) chart.getXYPlot().getDomainAxis();
    Interval current = app.getIntervalManager().getCurrentInterval();

    axis.setTimeZone(app.getDisplayTimeZone());

    if (chart.getXYPlot().getRenderer().getBaseToolTipGenerator().getClass() == TimeAndValueTooltipGenerator.class) {
        ((TimeAndValueTooltipGenerator) chart.getXYPlot().getRenderer().getBaseToolTipGenerator()).setTimeZone(app
                .getDisplayTimeZone());
    }

    if (Interval.DEFAULT.equals(current)) {
        if (app.getMinSystemTime() == 0) {
            // implies no current datasets, so keep the axis range sane
            // fixes near infinite loop displaying chart with no data
            long now = System.currentTimeMillis();
            axis.setRange(now - (86400000 / 2), now + ((86400000 - 1000) / 2));
        }
        else {
            long min = app.getMinSystemTime();
            long max = app.getMaxSystemTime();

            // exception thrown if min and max are the same
            if (min == max) {
                min -= 1000;
            }

            axis.setRange(min, max);
        }
    }
    else {
        axis.setRange(current.getStart(), current.getEnd());
    }
}
 

protected JFreeChart renderPreChart(Map<String, OXFFeatureCollection> entireCollMap, String[] observedProperties,
        ArrayList<TimeSeriesCollection> timeSeries, Calendar begin, Calendar end) {

    JFreeChart chart = ChartFactory.createTimeSeriesChart(null, // title
            "Date", // x-axis label
            observedProperties[0], // y-axis label
            timeSeries.get(0), // data
            true, // create legend?
            true, // generate tooltips?
            false // generate URLs?
            );

    chart.setBackgroundPaint(Color.white);

    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setBackgroundPaint(Color.white);
    plot.setDomainGridlinePaint(Color.lightGray);
    plot.setRangeGridlinePaint(Color.lightGray);
    plot.setAxisOffset(new RectangleInsets(2.0, 2.0, 2.0, 2.0));
    plot.setDomainCrosshairVisible(true);
    plot.setRangeCrosshairVisible(true);
    XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) plot.getRenderer();
    renderer.setBaseShapesVisible(true);
    renderer.setBaseShapesFilled(true);

    // add additional datasets:
    DateAxis axis = (DateAxis) plot.getDomainAxis();
    axis.setRange(begin.getTime(), end.getTime());
    axis.setDateFormatOverride(new SimpleDateFormat());
    axis.setTimeZone(end.getTimeZone());
    for (int i = 1; i < observedProperties.length; i++) {
        XYDataset additionalDataset = timeSeries.get(i);
        plot.setDataset(i, additionalDataset);
        plot.setRangeAxis(i, new NumberAxis(observedProperties[i]));
        // plot.getRangeAxis(i).setRange((Double)
        // overAllSeriesCollection.getMinimum(i),
        // (Double) overAllSeriesCollection.getMaximum(i));
        plot.mapDatasetToRangeAxis(i, i);
        // plot.getDataset().getXValue(i, i);
    }
    return chart;
}