Examples with Axis org.swtchart.internal.axis.Axis used on opensource projects

Example 6 with Axis

use of org.swtchart.internal.axis.Axis in project netxms by netxms.

the class SeriesSet method updateStackAndRiserData.

/**
 * Updates the stack and riser data for given axes.
 *
 * @param xAxis the X axis
 * @param yAxis the Y axis
 */
private void updateStackAndRiserData(IAxis xAxis, IAxis yAxis) {
    int riserCnt = 0;
    int stackRiserPosition = -1;
    double[] stackBarSeries = null;
    double[] stackLineSeries = null;
    double[] invertedStackLineSeries = null;
    if (((Axis) xAxis).isValidCategoryAxis()) {
        String[] categorySeries = xAxis.getCategorySeries();
        if (categorySeries != null) {
            int size = categorySeries.length;
            stackBarSeries = new double[size];
            stackLineSeries = new double[size];
            invertedStackLineSeries = new double[size];
        }
    } else {
        // Build combined time series
        // Time stamps in series are reversed - latest value first
        List<Date> combinedTimeSeries = new ArrayList<Date>();
        for (ISeries series : getSeries()) {
            if (!series.isStackEnabled())
                continue;
            for (Date d : series.getXDateSeries()) {
                int i;
                for (i = 0; i < combinedTimeSeries.size(); i++) {
                    if (combinedTimeSeries.get(i).getTime() == d.getTime())
                        break;
                    if (combinedTimeSeries.get(i).getTime() < d.getTime()) {
                        combinedTimeSeries.add(i, d);
                        break;
                    }
                }
                if (i == combinedTimeSeries.size())
                    combinedTimeSeries.add(d);
            }
        }
        // insert missing values
        for (ISeries series : getSeries()) {
            if (!series.isStackEnabled())
                continue;
            double[] ySeries = new double[combinedTimeSeries.size()];
            int combinedIndex = 0;
            double lastValue = 0;
            long lastTimestamp = 0;
            for (int i = 0; i < series.getYSeries().length; i++) {
                Date currentTimestamp = series.getXDateSeries()[i];
                double currentValue = series.getYSeries()[i];
                long currentCombinedTimestamp = combinedTimeSeries.get(combinedIndex).getTime();
                while (currentCombinedTimestamp > currentTimestamp.getTime()) {
                    if (lastTimestamp != 0) {
                        // do linear interpolation for missed value
                        ySeries[combinedIndex] = lastValue + (currentValue - lastValue) * ((double) (lastTimestamp - currentCombinedTimestamp) / (double) (lastTimestamp - currentTimestamp.getTime()));
                    } else {
                        ySeries[combinedIndex] = currentValue;
                    }
                    combinedIndex++;
                    currentCombinedTimestamp = combinedTimeSeries.get(combinedIndex).getTime();
                }
                ySeries[combinedIndex++] = currentValue;
                lastTimestamp = currentTimestamp.getTime();
                lastValue = currentValue;
            }
            while (combinedIndex < ySeries.length) ySeries[combinedIndex++] = lastValue;
            series.setXDateSeries(combinedTimeSeries.toArray(new Date[combinedTimeSeries.size()]));
            series.setYSeries(ySeries);
        }
        stackLineSeries = new double[combinedTimeSeries.size()];
        invertedStackLineSeries = new double[combinedTimeSeries.size()];
    }
    for (ISeries series : getSeries()) {
        if (series.getXAxisId() != xAxis.getId() || series.getYAxisId() != yAxis.getId() || !series.isVisible()) {
            continue;
        }
        if (series.isStackEnabled() && !chart.getAxisSet().getYAxis(series.getYAxisId()).isLogScaleEnabled()) {
            if (series.getType() == SeriesType.BAR) {
                if (stackRiserPosition == -1) {
                    stackRiserPosition = riserCnt;
                    riserCnt++;
                }
                ((BarSeries) series).setRiserIndex(((Axis) xAxis).getNumRisers() + stackRiserPosition);
                setStackSeries(stackBarSeries, series);
            } else if (series.getType() == SeriesType.LINE) {
                setStackSeries(series.isInverted() ? invertedStackLineSeries : stackLineSeries, series);
            }
        } else {
            if (series.getType() == SeriesType.BAR) {
                ((BarSeries) series).setRiserIndex(((Axis) xAxis).getNumRisers() + riserCnt++);
            }
        }
    }
    ((Axis) xAxis).setNumRisers(((Axis) xAxis).getNumRisers() + riserCnt);
}

Example 7 with Axis

use of org.swtchart.internal.axis.Axis in project netxms by netxms.

the class SeriesSet method createSeries.

/* (non-Javadoc)
    * @see org.swtchart.ISeriesSet#createSeries(org.swtchart.ISeries.SeriesType, java.lang.String, boolean)
    */
@Override
public ISeries createSeries(SeriesType type, String id, boolean updateChart) {
    if (id == null) {
        SWT.error(SWT.ERROR_NULL_ARGUMENT);
        // to suppress warning...
        return null;
    }
    String identifier = id.trim();
    if ("".equals(identifier)) {
        SWT.error(SWT.ERROR_INVALID_ARGUMENT);
    }
    Series series = null;
    if (type == SeriesType.BAR) {
        series = new BarSeries(chart, identifier);
    } else if (type == SeriesType.LINE) {
        series = new LineSeries(chart, identifier);
    } else {
        SWT.error(SWT.ERROR_INVALID_ARGUMENT);
        // to suppress warning...
        return null;
    }
    Series oldSeries = seriesMap.get(identifier);
    if (oldSeries != null) {
        oldSeries.dispose();
    }
    int[] xAxisIds = chart.getAxisSet().getXAxisIds();
    int[] yAxisIds = chart.getAxisSet().getYAxisIds();
    series.setXAxisId(xAxisIds[0]);
    series.setYAxisId(yAxisIds[0]);
    seriesMap.put(identifier, series);
    if (updateChart) {
        Axis axis = (Axis) chart.getAxisSet().getXAxis(xAxisIds[0]);
        if (axis != null) {
            updateStackAndRiserData();
        }
    }
    // legend will be shown if there is previously no series.
    chart.updateLayout();
    return series;
}