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

Example 6 with Range

use of org.eclipse.swtchart.Range in project swtchart by eclipse.

the class RangeSelector method adjustRanges.

public void adjustRanges(boolean redraw) {
    BaseChart baseChart = scrollableChart.getBaseChart();
    // 
    int indexX = (comboScaleX.getSelectionIndex() >= 0) ? comboScaleX.getSelectionIndex() : BaseChart.ID_PRIMARY_X_AXIS;
    int indexY = (comboScaleY.getSelectionIndex() >= 0) ? comboScaleY.getSelectionIndex() : BaseChart.ID_PRIMARY_Y_AXIS;
    IAxis xAxis = baseChart.getAxisSet().getXAxis(indexX);
    IAxis yAxis = baseChart.getAxisSet().getYAxis(indexY);
    Range rangeX = xAxis.getRange();
    Range rangeY = yAxis.getRange();
    // 
    DecimalFormat decimalFormatX = baseChart.getDecimalFormat(IExtendedChart.X_AXIS, indexX);
    DecimalFormat decimalFormatY = baseChart.getDecimalFormat(IExtendedChart.Y_AXIS, indexY);
    // 
    if (rangeX != null && rangeY != null) {
        /*
			 * Update the text boxes.
			 */
        textStartX.setText(decimalFormatX.format(rangeX.lower));
        textStopX.setText(decimalFormatX.format(rangeX.upper));
        textStartY.setText(decimalFormatY.format(rangeY.lower));
        textStopY.setText(decimalFormatY.format(rangeY.upper));
        /*
			 * Redraw the base chart.
			 */
        if (redraw) {
            baseChart.redraw();
        }
    }
}

Example 7 with Range

use of org.eclipse.swtchart.Range in project swtchart by eclipse.

the class ScrollableChart method calculateShiftedRange.

private Range calculateShiftedRange(Range range, Slider slider) {
    int selection = slider.getSelection();
    double min = selection;
    double max = (range.upper - range.lower) + selection;
    return new Range(min, max);
}

Example 8 with Range

use of org.eclipse.swtchart.Range in project swtchart by eclipse.

the class ZoomEvent method handleEvent.

@Override
public void handleEvent(BaseChart baseChart, Event event) {
    IAxisSet axisSet = baseChart.getAxisSet();
    IAxis xAxis = axisSet.getXAxis(BaseChart.ID_PRIMARY_X_AXIS);
    IAxis yAxis = axisSet.getYAxis(BaseChart.ID_PRIMARY_Y_AXIS);
    // 
    RangeRestriction rangeRestriction = baseChart.getRangeRestriction();
    if (baseChart.isZoomXAndY(rangeRestriction)) {
        /*
			 * X and Y zoom.
			 */
        baseChart.zoomX(xAxis, event);
        baseChart.zoomY(yAxis, event);
    } else {
        /*
			 * X or Y zoom.
			 */
        if (rangeRestriction.isXZoomOnly()) {
            baseChart.zoomX(xAxis, event);
        } else if (rangeRestriction.isYZoomOnly()) {
            baseChart.zoomY(yAxis, event);
        }
    }
    /*
		 * Adjust the range if it shall not exceed the initial
		 * min and max values.
		 */
    if (rangeRestriction.isRestrictZoom()) {
        /*
			 * Adjust the primary axes.
			 * The secondary axes are adjusted by setting the range.
			 */
        Range rangeX = xAxis.getRange();
        Range rangeY = yAxis.getRange();
        baseChart.setRange(xAxis, rangeX.lower, rangeX.upper, true);
        baseChart.setRange(yAxis, rangeY.lower, rangeY.upper, true);
    } else {
        /*
			 * Update the secondary axes.
			 */
        baseChart.adjustSecondaryXAxes();
        baseChart.adjustSecondaryYAxes();
    }
    // 
    baseChart.fireUpdateCustomRangeSelectionHandlers(event);
    baseChart.redraw();
}

Example 9 with Range

use of org.eclipse.swtchart.Range in project swtchart by eclipse.

the class Axis method adjustRange.

/**
 * Adjusts the axis range to the series belonging to the axis.
 *
 * @param update
 *            true if updating chart layout
 */
public void adjustRange(boolean update) {
    if (isValidCategoryAxis()) {
        setRange(new Range(0, categorySeries.length - 1));
        return;
    }
    double minimum = Double.NaN;
    double maximum = Double.NaN;
    for (ISeries series : chart.getSeriesSet().getSeries()) {
        int axisId = direction == Direction.X ? series.getXAxisId() : series.getYAxisId();
        if (!series.isVisible() || getId() != axisId) {
            continue;
        }
        // get axis length
        int length;
        if (isHorizontalAxis) {
            length = chart.getPlotArea().getSize().x;
        } else {
            length = chart.getPlotArea().getSize().y;
        }
        // get min and max value of series
        Range range = ((Series) series).getAdjustedRange(this, length);
        if (Double.isNaN(minimum) || range.lower < minimum) {
            minimum = range.lower;
        }
        if (Double.isNaN(maximum) || range.upper > maximum) {
            maximum = range.upper;
        }
    }
    // set adjusted range
    if (!Double.isNaN(minimum) && !Double.isNaN(maximum)) {
        if (minimum == maximum) {
            double margin = (minimum == 0) ? 1d : Math.abs(minimum / 2d);
            minimum -= margin;
            maximum += margin;
        }
        setRange(new Range(minimum, maximum), update);
    }
}

Example 10 with Range

use of org.eclipse.swtchart.Range in project swtchart by eclipse.

the class Axis method zoomIn.

/*
	 * @see IAxis#zoomIn(double)
	 */
public void zoomIn(double coordinate) {
    double lower = min;
    double upper = max;
    if (isValidCategoryAxis()) {
        if (lower != upper) {
            if ((min + max) / 2d < coordinate) {
                lower = min + 1;
            } else if (coordinate < (min + max) / 2d) {
                upper = max - 1;
            } else {
                lower = min + 1;
                upper = max - 1;
            }
        }
    } else if (isLogScaleEnabled()) {
        double digitMin = Math.log10(min);
        double digitMax = Math.log10(max);
        double digitCoordinate = Math.log10(coordinate);
        lower = Math.pow(10, digitMin + 2 * SCROLL_RATIO * (digitCoordinate - digitMin));
        upper = Math.pow(10, digitMax + 2 * SCROLL_RATIO * (digitCoordinate - digitMax));
    } else {
        lower = min + 2 * ZOOM_RATIO * (coordinate - min);
        upper = max + 2 * ZOOM_RATIO * (coordinate - max);
    }
    setRange(new Range(lower, upper));
}