Examples of org.jfree.data.xy.IntervalXYDataset

org.jfree.data.xy.IntervalXYDataset
An extension of the {@link XYDataset} interface that allows an x-intervaland a y-interval to be defined. Note that the x and y values defined by the parent interface are NOT required to fall within these intervals. This interface is used to support (among other things) bar plots against numerical axes.

            int itemCount = dataset.getItemCount(series);
            for (int item = 0; item < itemCount; item++) {
                double lvalue;
                double uvalue;
                if (dataset instanceof IntervalXYDataset) {
                    IntervalXYDataset intervalXYData 
                        = (IntervalXYDataset) dataset;
                    lvalue = intervalXYData.getStartYValue(series, item);
                    uvalue = intervalXYData.getEndYValue(series, item);
                }
                else if (dataset instanceof OHLCDataset) {
                    OHLCDataset highLowData = (OHLCDataset) dataset;
                    lvalue = highLowData.getLowValue(series, item);
                    uvalue = highLowData.getHighValue(series, item);

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                int itemCount = dataset.getItemCount(series);
                for (int item = 0; item < itemCount; item++) {


                    double value;
                    if (dataset instanceof IntervalXYDataset) {
                        IntervalXYDataset intervalXYData 
                            = (IntervalXYDataset) dataset;
                        value = intervalXYData.getStartXValue(series, item);
                    }
                    else {
                        value = dataset.getXValue(series, item);
                    }
                    if (!Double.isNaN(value)) {

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                int itemCount = dataset.getItemCount(series);
                for (int item = 0; item < itemCount; item++) {


                    double value;
                    if (dataset instanceof IntervalXYDataset) {
                        IntervalXYDataset intervalXYData 
                            = (IntervalXYDataset) dataset;
                        value = intervalXYData.getEndXValue(series, item);
                    }
                    else {
                        value = dataset.getXValue(series, item);
                    }
                    if (!Double.isNaN(value)) {

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                int itemCount = dataset.getItemCount(series);
                for (int item = 0; item < itemCount; item++) {


                    double value;
                    if (dataset instanceof IntervalXYDataset) {
                        IntervalXYDataset intervalXYData 
                            = (IntervalXYDataset) dataset;
                        value = intervalXYData.getStartYValue(series, item);
                    }
                    else if (dataset instanceof OHLCDataset) {
                        OHLCDataset highLowData = (OHLCDataset) dataset;
                        value = highLowData.getLowValue(series, item);
                    }

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            for (int series = 0; series < seriesCount; series++) {
                int itemCount = dataset.getItemCount(series);
                for (int item = 0; item < itemCount; item++) {
                    double value;
                    if (dataset instanceof IntervalXYDataset) {
                        IntervalXYDataset intervalXYData 
                            = (IntervalXYDataset) dataset;
                        value = intervalXYData.getEndYValue(series, item);
                    }
                    else if (dataset instanceof OHLCDataset) {
                        OHLCDataset highLowData = (OHLCDataset) dataset;
                        value = highLowData.getHighValue(series, item);
                    }

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                         ValueAxis rangeAxis,
                         XYDataset dataset, int series, int item,
                         CrosshairState crosshairState,
                         int pass) {


        IntervalXYDataset intervalDataset = (IntervalXYDataset) dataset;


        double y0;
        double y1;
        if (getUseYInterval()) {
            y0 = intervalDataset.getStartYValue(series, item);
            y1 = intervalDataset.getEndYValue(series, item);
        }
        else {
            y0 = getBase();
            y1 = intervalDataset.getYValue(series, item);
        }
        if (Double.isNaN(y0) || Double.isNaN(y1)) {
            return;
        }


        double yy0 = rangeAxis.valueToJava2D(y0, dataArea, 
                plot.getRangeAxisEdge());
        double yy1 = rangeAxis.valueToJava2D(y1, dataArea, 
                plot.getRangeAxisEdge());


        RectangleEdge xAxisLocation = plot.getDomainAxisEdge();
        double x0 = intervalDataset.getStartXValue(series, item);
        double xx0 = domainAxis.valueToJava2D(x0, dataArea, xAxisLocation);
        
        double x1 = intervalDataset.getEndXValue(series, item);
        double xx1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation);
        
        double intervalW = xx1 - xx0;  // this may be negative
        double baseX = xx0;
        if (this.centerBarAtStartValue) {

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                        lastPos = pos;
                    }
                    break;


                case WIDTHMETHOD_INTERVALDATA:
                    IntervalXYDataset intervalXYData
                            = (IntervalXYDataset) dataset;
                    double startPos = domainAxis.valueToJava2D(
                            intervalXYData.getStartXValue(series, item),
                            dataArea, plot.getDomainAxisEdge());
                    double endPos = domainAxis.valueToJava2D(
                            intervalXYData.getEndXValue(series, item),
                            dataArea, plot.getDomainAxisEdge());
                    xxWidth = Math.abs(endPos - startPos);
                    break;


            }

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            }


            throw new IllegalArgumentException(message);
        }


        IntervalXYDataset intervalDataset = (IntervalXYDataset) dataset;
        double value = intervalDataset.getYValue(series, item);
        if (Double.isNaN(value)) {
            return;
        }


        // if we are rendering the values as percentages, we need to calculate
        // the total for the current item.  Unfortunately here we end up
        // repeating the calculation more times than is strictly necessary -
        // hopefully I'll come back to this and find a way to add the
        // total(s) to the renderer state.  The other problem is we implicitly
        // assume the dataset has no negative values...perhaps that can be
        // fixed too.
        double total = 0.0;
        if (this.renderAsPercentages) {
            total = DatasetUtilities.calculateStackTotal(
                    (TableXYDataset) dataset, item);
            value = value / total;
        }


        double positiveBase = 0.0;
        double negativeBase = 0.0;


        for (int i = 0; i < series; i++) {
            double v = dataset.getYValue(i, item);
            if (!Double.isNaN(v)) {
                if (this.renderAsPercentages) {
                    v = v / total;
                }
                if (v > 0) {
                    positiveBase = positiveBase + v;
                }
                else {
                    negativeBase = negativeBase + v;
                }
            }
        }


        double translatedBase;
        double translatedValue;
        RectangleEdge edgeR = plot.getRangeAxisEdge();
        if (value > 0.0) {
            translatedBase = rangeAxis.valueToJava2D(positiveBase, dataArea,
                    edgeR);
            translatedValue = rangeAxis.valueToJava2D(positiveBase + value,
                    dataArea, edgeR);
        }
        else {
            translatedBase = rangeAxis.valueToJava2D(negativeBase, dataArea,
                    edgeR);
            translatedValue = rangeAxis.valueToJava2D(negativeBase + value,
                    dataArea, edgeR);
        }


        RectangleEdge edgeD = plot.getDomainAxisEdge();
        double startX = intervalDataset.getStartXValue(series, item);
        if (Double.isNaN(startX)) {
            return;
        }
        double translatedStartX = domainAxis.valueToJava2D(startX, dataArea,
                edgeD);


        double endX = intervalDataset.getEndXValue(series, item);
        if (Double.isNaN(endX)) {
            return;
        }
        double translatedEndX = domainAxis.valueToJava2D(endX, dataArea, edgeD);

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        EntityCollection entities = null;
        if (info != null) {
            entities = info.getOwner().getEntityCollection();
        }


        IntervalXYDataset intervalDataset = (IntervalXYDataset) dataset;


        double x = intervalDataset.getXValue(series, item);
        double yLow   = intervalDataset.getStartYValue(series, item);
        double yHigh  = intervalDataset.getEndYValue(series, item);


        RectangleEdge xAxisLocation = plot.getDomainAxisEdge();
        RectangleEdge yAxisLocation = plot.getRangeAxisEdge();


        double xx = domainAxis.valueToJava2D(x, dataArea, xAxisLocation);

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            ValueAxis domainAxis, ValueAxis rangeAxis, XYDataset dataset,
            int series, int item, CrosshairState crosshairState, int pass) {


        if (pass == 0 && dataset instanceof IntervalXYDataset
                && getItemVisible(series, item)) {
            IntervalXYDataset ixyd = (IntervalXYDataset) dataset;
            PlotOrientation orientation = plot.getOrientation();
            if (this.drawXError) {
                // draw the error bar for the x-interval
                double x0 = ixyd.getStartXValue(series, item);
                double x1 = ixyd.getEndXValue(series, item);
                double y = ixyd.getYValue(series, item);
                RectangleEdge edge = plot.getDomainAxisEdge();
                double xx0 = domainAxis.valueToJava2D(x0, dataArea, edge);
                double xx1 = domainAxis.valueToJava2D(x1, dataArea, edge);
                double yy = rangeAxis.valueToJava2D(y, dataArea,
                        plot.getRangeAxisEdge());
                Line2D line;
                Line2D cap1 = null;
                Line2D cap2 = null;
                double adj = this.capLength / 2.0;
                if (orientation == PlotOrientation.VERTICAL) {
                    line = new Line2D.Double(xx0, yy, xx1, yy);
                    cap1 = new Line2D.Double(xx0, yy - adj, xx0, yy + adj);
                    cap2 = new Line2D.Double(xx1, yy - adj, xx1, yy + adj);
                }
                else {  // PlotOrientation.HORIZONTAL
                    line = new Line2D.Double(yy, xx0, yy, xx1);
                    cap1 = new Line2D.Double(yy - adj, xx0, yy + adj, xx0);
                    cap2 = new Line2D.Double(yy - adj, xx1, yy + adj, xx1);
                }
                g2.setStroke(new BasicStroke(1.0f));
                if (this.errorPaint != null) {
                    g2.setPaint(this.errorPaint);
                }
                else {
                    g2.setPaint(getItemPaint(series, item));
                }
                g2.draw(line);
                g2.draw(cap1);
                g2.draw(cap2);
            }
            if (this.drawYError) {
                // draw the error bar for the y-interval
                double y0 = ixyd.getStartYValue(series, item);
                double y1 = ixyd.getEndYValue(series, item);
                double x = ixyd.getXValue(series, item);
                RectangleEdge edge = plot.getRangeAxisEdge();
                double yy0 = rangeAxis.valueToJava2D(y0, dataArea, edge);
                double yy1 = rangeAxis.valueToJava2D(y1, dataArea, edge);
                double xx = domainAxis.valueToJava2D(x, dataArea,
                        plot.getDomainAxisEdge());

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