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

Example 11 with Range

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

the class Axis method zoomOut.

/*
	 * @see IAxis#zoomOut(double)
	 */
public void zoomOut(double coordinate) {
    double lower = min;
    double upper = max;
    if (isValidCategoryAxis()) {
        if ((min + max) / 2d < coordinate && min != 0) {
            lower = min - 1;
        } else if (coordinate < (min + max) / 2d && max != categorySeries.length - 1) {
            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 - ZOOM_RATIO * digitCoordinate) / (1 - ZOOM_RATIO));
        upper = Math.pow(10, (digitMax - ZOOM_RATIO * digitCoordinate) / (1 - ZOOM_RATIO));
    } else {
        lower = (min - 2 * ZOOM_RATIO * coordinate) / (1 - 2 * ZOOM_RATIO);
        upper = (max - 2 * ZOOM_RATIO * coordinate) / (1 - 2 * ZOOM_RATIO);
    }
    setRange(new Range(lower, upper));
}

Example 12 with Range

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

the class Axis method scrollUp.

/*
	 * @see IAxis#scrollUp()
	 */
public void scrollUp() {
    double lower = min;
    double upper = max;
    if (isValidCategoryAxis()) {
        if (upper < categorySeries.length - 1) {
            lower = min + 1;
            upper = max + 1;
        }
    } else if (isLogScaleEnabled()) {
        double digitMax = Math.log10(upper);
        double digitMin = Math.log10(lower);
        upper = Math.pow(10, digitMax + (digitMax - digitMin) * SCROLL_RATIO);
        lower = Math.pow(10, digitMin + (digitMax - digitMin) * SCROLL_RATIO);
    } else {
        lower = min + (max - min) * SCROLL_RATIO;
        upper = max + (max - min) * SCROLL_RATIO;
    }
    setRange(new Range(lower, upper));
}

Example 13 with Range

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

the class Axis method scrollDown.

/*
	 * @see IAxis#scrollDown()
	 */
public void scrollDown() {
    double lower = min;
    double upper = max;
    if (isValidCategoryAxis()) {
        if (lower >= 1) {
            lower = min - 1;
            upper = max - 1;
        }
    } else if (isLogScaleEnabled()) {
        double digitMax = Math.log10(upper);
        double digitMin = Math.log10(lower);
        upper = Math.pow(10, digitMax - (digitMax - digitMin) * SCROLL_RATIO);
        lower = Math.pow(10, digitMin - (digitMax - digitMin) * SCROLL_RATIO);
    } else {
        lower = min - (max - min) * SCROLL_RATIO;
        upper = max - (max - min) * SCROLL_RATIO;
    }
    setRange(new Range(lower, upper));
}

Example 14 with Range

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

the class LineSeries method getAdjustedRange.

/*
	 * @see Series#getAdjustedRange(Axis, int)
	 */
@Override
public Range getAdjustedRange(Axis axis, int length) {
    Range range;
    if (axis.getDirection() == Direction.X) {
        range = getXRange();
    } else {
        range = getYRange();
    }
    int lowerPlotMargin = getSymbolSize() + MARGIN_AT_MIN_MAX_PLOT;
    int upperPlotMargin = getSymbolSize() + MARGIN_AT_MIN_MAX_PLOT;
    return getRangeWithMargin(lowerPlotMargin, upperPlotMargin, length, axis, range);
}

Example 15 with Range

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

the class Series method getRangeWithMargin.

/**
 * Gets the range with given margin.
 *
 * @param lowerPlotMargin
 *            the lower margin in pixels
 * @param upperPlotMargin
 *            the upper margin in pixels
 * @param length
 *            the axis length in pixels
 * @param axis
 *            the axis
 * @param range
 *            the range
 * @return the range with margin
 */
protected Range getRangeWithMargin(int lowerPlotMargin, int upperPlotMargin, int length, Axis axis, Range range) {
    if (length == 0) {
        return range;
    }
    int lowerPixelCoordinate = axis.getPixelCoordinate(range.lower, range.lower, range.upper) + lowerPlotMargin * (axis.isHorizontalAxis() ? -1 : 1);
    int upperPixelCoordinate = axis.getPixelCoordinate(range.upper, range.lower, range.upper) + upperPlotMargin * (axis.isHorizontalAxis() ? 1 : -1);
    double lower = axis.getDataCoordinate(lowerPixelCoordinate, range.lower, range.upper);
    double upper = axis.getDataCoordinate(upperPixelCoordinate, range.lower, range.upper);
    return new Range(lower, upper);
}