Examples with IAxis org.eclipse.swtchart.IAxis used on opensource projects

Example 36 with IAxis

use of org.eclipse.swtchart.IAxis in project netxms by netxms.

the class LineChart method getClosestDataPoint.

/**
 * Get data point closest to given point in plot area
 *
 * @param px
 * @param py
 * @return
 */
public DataPoint getClosestDataPoint(int px, int py) {
    IAxis xAxis = getAxisSet().getXAxis(0);
    IAxis yAxis = getAxisSet().getYAxis(0);
    double x = xAxis.getDataCoordinate(px);
    double y = yAxis.getDataCoordinate(py);
    double closestX = 0;
    double closestY = 0;
    double minDist = Double.MAX_VALUE;
    ISeries<?> closestSeries = null;
    /* over all series */
    ISeries<?>[] series = getSeriesSet().getSeries();
    for (ISeries<?> s : series) {
        double[] xS = s.getXSeries();
        double[] yS = s.getYSeries();
        /* check all data points */
        for (int i = 0; i < xS.length; i++) {
            /* compute distance to mouse position */
            double newDist = Math.sqrt(Math.pow((x - xS[i]), 2) + Math.pow((y - yS[i]), 2));
            /* if closer to mouse, remember */
            if (newDist < minDist) {
                minDist = newDist;
                closestX = xS[i];
                closestY = yS[i];
                closestSeries = s;
            }
        }
    }
    return (closestSeries != null) ? new DataPoint(new Date((long) closestX), closestY, closestSeries) : null;
}

Example 37 with IAxis

use of org.eclipse.swtchart.IAxis in project org.eclipse.linuxtools by eclipse-linuxtools.

the class ChartFactory method produceBarChart.

/**
 * Produces a 2D bar chart from the input objects.
 *
 * @param objects
 *            the input data
 * @param nameField
 *            the field used to get the labels of the objects (the labels of the series groups).
 * @param valFields
 *            the fields providing the values for the different bars in a series group.
 * @param title Title of the chart.
 * @param horizontal
 *            if true the bars are displayed horizontally, else vertically.
 * @return a new 2D bar chart
 */
public static InteractiveChart produceBarChart(Object[] objects, final ISTDataViewersField nameField, List<IChartField> valFields, String title, boolean horizontal) {
    ChartView view;
    try {
        final Color WHITE = PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_WHITE);
        final Color BLACK = PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_BLACK);
        final Color GRAD = PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND);
        view = (ChartView) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().showView(ChartView.VIEW_ID, String.valueOf(ChartView.getSecId()), IWorkbenchPage.VIEW_ACTIVATE);
        InteractiveChart chart = new InteractiveChart(view.getParent(), SWT.NONE);
        chart.setBackground(WHITE);
        chart.getPlotArea().setBackground(GRAD);
        chart.getTitle().setText(title);
        chart.getTitle().setForeground(BLACK);
        chart.setProposedSaveAsFilename(title.replace(' ', '_'));
        // this is correct (refers to orientation of x-axis, not bars)
        if (horizontal) {
            chart.setOrientation(SWT.VERTICAL);
        } else {
            chart.setOrientation(SWT.HORIZONTAL);
        }
        chart.getLegend().setPosition(SWT.RIGHT);
        String[] textLabels = new String[objects.length];
        for (int i = 0; i < objects.length; i++) {
            textLabels[i] = nameField.getValue(objects[i]);
        }
        // x-axis
        IAxis xAxis = chart.getAxisSet().getXAxis(0);
        xAxis.getGrid().setStyle(LineStyle.NONE);
        xAxis.getTick().setForeground(BLACK);
        ITitle xTitle = xAxis.getTitle();
        xTitle.setForeground(BLACK);
        xTitle.setText(nameField.getColumnHeaderText());
        xAxis.setCategorySeries(textLabels);
        xAxis.enableCategory(true);
        // y-axis
        IAxis yAxis = chart.getAxisSet().getYAxis(0);
        yAxis.getGrid().setStyle(LineStyle.NONE);
        yAxis.getTick().setForeground(BLACK);
        yAxis.getTitle().setVisible(false);
        // data
        for (IChartField field : valFields) {
            final IBarSeries bs = (IBarSeries) chart.getSeriesSet().createSeries(SeriesType.BAR, field.getColumnHeaderText());
            bs.setBarColor(new Color(Display.getDefault(), getRC(), getRC(), getRC()));
            double[] doubleValues = new double[objects.length];
            for (int i = 0; i < objects.length; i++) {
                Number num = field.getNumber(objects[i]);
                double longVal = num.doubleValue();
                doubleValues[i] = longVal;
            }
            bs.setYSeries(doubleValues);
        }
        chart.getAxisSet().adjustRange();
        return chart;
    } catch (PartInitException e) {
        Activator.getDefault().getLog().log(e.getStatus());
    }
    return null;
}

Example 38 with IAxis

use of org.eclipse.swtchart.IAxis in project org.eclipse.linuxtools by eclipse-linuxtools.

the class PieChart method setSeriesNames.

/**
 * Sets this chart's category names such that the number of names
 * is equal to the number of pies. This method will only make changes
 * to category series if they are not already properly set.
 * @param numExpected The number of pies / the expected number of category names.
 */
private void setSeriesNames(int numExpected) {
    IAxis xAxis = getAxisSet().getXAxis(0);
    if (xAxis.getCategorySeries().length != numExpected) {
        String[] seriesNames = new String[numExpected];
        for (int i = 0, n = Math.min(xAxis.getCategorySeries().length, numExpected); i < n; i++) {
            seriesNames[i] = xAxis.getCategorySeries()[i];
        }
        for (int i = xAxis.getCategorySeries().length; i < numExpected; i++) {
            // $NON-NLS-1$
            seriesNames[i] = "";
        }
        xAxis.setCategorySeries(seriesNames);
    }
}

Example 39 with IAxis

use of org.eclipse.swtchart.IAxis in project org.eclipse.linuxtools by eclipse-linuxtools.

the class AbstractChartWithAxisBuilder method buildXAxis.

/**
 * Builds X axis.
 */
@Override
protected void buildXAxis() {
    String[] labels = adapter.getLabels();
    IAxis xAxis = this.chart.getAxisSet().getXAxis(0);
    if (xLineGrid) {
        xAxis.getGrid().setStyle(LineStyle.SOLID);
    } else {
        xAxis.getGrid().setStyle(LineStyle.NONE);
    }
    xAxis.getTick().setForeground(BLACK);
    xAxis.getTick().setTickMarkStepHint(xSeriesTicks);
    ITitle xTitle = xAxis.getTitle();
    xTitle.setForeground(BLACK);
    if (labels.length > 0) {
        xTitle.setText(labels[0]);
    } else {
        // $NON-NLS-1$
        xTitle.setText("");
    }
}

Example 40 with IAxis

use of org.eclipse.swtchart.IAxis in project org.eclipse.linuxtools by eclipse-linuxtools.

the class PieChartBuilder method buildXAxis.

@Override
protected void buildXAxis() {
    String[] labels = adapter.getLabels();
    String[] seriesLabels = new String[labels.length - 1];
    for (int i = 0; i < seriesLabels.length; i++) {
        seriesLabels[i] = labels[i + 1];
    }
    IAxis xAxis = this.chart.getAxisSet().getXAxis(0);
    xAxis.getTitle().setText(labels[0]);
    xAxis.setCategorySeries(seriesLabels);
}