Examples of org.jfree.chart.labels.ItemLabelPosition

org.jfree.chart.labels.ItemLabelPosition
The attributes that control the position of the label for each data item on a chart. Instances of this class are immutable.

        CategoryAxis categoryAxis = new CategoryAxis(categoryAxisLabel);
        ValueAxis valueAxis = new NumberAxis(valueAxisLabel);


        BarRenderer renderer = new BarRenderer();
        if (orientation == PlotOrientation.HORIZONTAL) {
            ItemLabelPosition position1 = new ItemLabelPosition(
                    ItemLabelAnchor.OUTSIDE3, TextAnchor.CENTER_LEFT);
            renderer.setBasePositiveItemLabelPosition(position1);
            ItemLabelPosition position2 = new ItemLabelPosition(
                    ItemLabelAnchor.OUTSIDE9, TextAnchor.CENTER_RIGHT);
            renderer.setBaseNegativeItemLabelPosition(position2);
         }
        else if (orientation == PlotOrientation.VERTICAL) {
            ItemLabelPosition position1 = new ItemLabelPosition(
                    ItemLabelAnchor.OUTSIDE12, TextAnchor.BOTTOM_CENTER);
            renderer.setBasePositiveItemLabelPosition(position1);
            ItemLabelPosition position2 = new ItemLabelPosition(
                    ItemLabelAnchor.OUTSIDE6, TextAnchor.TOP_CENTER);
            renderer.setBaseNegativeItemLabelPosition(position2);
        }
        if (tooltips) {
            renderer.setBaseToolTipGenerator(

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        ValueAxis valueAxis = new NumberAxis(valueAxisLabel);


        WaterfallBarRenderer renderer = new WaterfallBarRenderer();
        if (orientation == PlotOrientation.HORIZONTAL) {
            ItemLabelPosition position = new ItemLabelPosition(
                    ItemLabelAnchor.CENTER, TextAnchor.CENTER,
                    TextAnchor.CENTER, Math.PI / 2.0);
            renderer.setBasePositiveItemLabelPosition(position);
            renderer.setBaseNegativeItemLabelPosition(position);
         }
        else if (orientation == PlotOrientation.VERTICAL) {
            ItemLabelPosition position = new ItemLabelPosition(
                    ItemLabelAnchor.CENTER, TextAnchor.CENTER,
                    TextAnchor.CENTER, 0.0);
            renderer.setBasePositiveItemLabelPosition(position);
            renderer.setBaseNegativeItemLabelPosition(position);
        }

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            Font labelFont = getItemLabelFont(row, column);
            Paint paint = getItemLabelPaint(row, column);
            g2.setFont(labelFont);
            g2.setPaint(paint);
            String label = generator.generateLabel(dataset, row, column);
            ItemLabelPosition position = null;
            if (!negative) {
                position = getPositiveItemLabelPosition(row, column);
            }
            else {
                position = getNegativeItemLabelPosition(row, column);
            }
            Point2D anchorPoint = calculateLabelAnchorPoint(
                    position.getItemLabelAnchor(), x, y, orientation);
            TextUtilities.drawRotatedString(label, g2,
                    (float) anchorPoint.getX(), (float) anchorPoint.getY(),
                    position.getTextAnchor(),
                    position.getAngle(), position.getRotationAnchor());
        }


    }

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            g2.setFont(labelFont);
            g2.setPaint(paint);
            String label = generator.generateLabel(dataset, series, item);


            // get the label position..
            ItemLabelPosition position = null;
            if (!negative) {
                position = getPositiveItemLabelPosition(series, item);
            }
            else {
                position = getNegativeItemLabelPosition(series, item);
            }


            // work out the label anchor point...
            Point2D anchorPoint = calculateLabelAnchorPoint(
                    position.getItemLabelAnchor(), x, y, orientation);
            TextUtilities.drawRotatedString(label, g2,
                    (float) anchorPoint.getX(), (float) anchorPoint.getY(),
                    position.getTextAnchor(), position.getAngle(),
                    position.getRotationAnchor());
        }


    }

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        g2.setFont(labelFont);
        g2.setPaint(paint);
        String label = this.additionalItemLabelGenerator.generateLabel(dataset,
                series, item);


        ItemLabelPosition position = getNegativeItemLabelPosition(series, item);
        Point2D anchorPoint = calculateLabelAnchorPoint(
                position.getItemLabelAnchor(), x, y, orientation);
        TextUtilities.drawRotatedString(label, g2,
                (float) anchorPoint.getX(), (float) anchorPoint.getY(),
                position.getTextAnchor(), position.getAngle(),
                position.getRotationAnchor());
    }

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        this.itemLabelPaintList = new PaintList();
        this.baseItemLabelPaint = Color.black;


        this.positiveItemLabelPosition = null;
        this.positiveItemLabelPositionList = new ObjectList();
        this.basePositiveItemLabelPosition = new ItemLabelPosition(
                ItemLabelAnchor.OUTSIDE12, TextAnchor.BOTTOM_CENTER);


        this.negativeItemLabelPosition = null;
        this.negativeItemLabelPositionList = new ObjectList();
        this.baseNegativeItemLabelPosition = new ItemLabelPosition(
                ItemLabelAnchor.OUTSIDE6, TextAnchor.TOP_CENTER);


        this.createEntities = null;
        this.createEntitiesList = new BooleanList();
        this.baseCreateEntities = true;

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        if (this.positiveItemLabelPosition != null) {
            return this.positiveItemLabelPosition;
        }


        // otherwise look up the position table
        ItemLabelPosition position = (ItemLabelPosition)
            this.positiveItemLabelPositionList.get(series);
        if (position == null) {
            position = this.basePositiveItemLabelPosition;
        }
        return position;

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        if (this.negativeItemLabelPosition != null) {
            return this.negativeItemLabelPosition;
        }


        // otherwise look up the position list
        ItemLabelPosition position = (ItemLabelPosition)
            this.negativeItemLabelPositionList.get(series);
        if (position == null) {
            position = this.baseNegativeItemLabelPosition;
        }
        return position;

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        return plot;
    }


    private BarRenderer createBarChartRenderer(NumberFormat numberFormat) {
        BarRenderer renderer = new BarRenderer();
        ItemLabelPosition positiveItemLabelPosition = new ItemLabelPosition(
                ItemLabelAnchor.OUTSIDE12, TextAnchor.BOTTOM_CENTER);
        renderer.setBasePositiveItemLabelPosition(positiveItemLabelPosition);
        ItemLabelPosition negativeItemLabelPosition = new ItemLabelPosition(
                ItemLabelAnchor.OUTSIDE6, TextAnchor.TOP_CENTER);
        renderer.setBaseNegativeItemLabelPosition(negativeItemLabelPosition);
        renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator(
                StandardCategoryItemLabelGenerator.DEFAULT_LABEL_FORMAT_STRING, numberFormat));
        renderer.setBaseItemLabelsVisible(true);

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    NumberAxis numberaxis = (NumberAxis) plot.getRangeAxis();
    numberaxis.setUpperMargin(0.25);
    CategoryItemRenderer renderer = plot.getRenderer();
    renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
    //注意：使用?ChartFactory创建的3D的，设置这个还不一定会出来，需要设置位置，如：
    ItemLabelPosition position1 = new ItemLabelPosition( ItemLabelAnchor.OUTSIDE12, TextAnchor.BOTTOM_CENTER);
        renderer.setBasePositiveItemLabelPosition(position1);
        ItemLabelPosition position2 = new ItemLabelPosition(ItemLabelAnchor.OUTSIDE6, TextAnchor.TOP_CENTER);
        renderer.setBaseNegativeItemLabelPosition(position2);
    renderer.setSeriesItemLabelsVisible(2, Boolean.TRUE);
    return chart;
  }

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