Example usage for org.jfree.chart.annotations CategoryPointerAnnotation CategoryPointerAnnotation

Introduction

In this page you can find the example usage for org.jfree.chart.annotations CategoryPointerAnnotation CategoryPointerAnnotation.

Prototype

public CategoryPointerAnnotation(String label, Comparable key, double value, double angle) 

Source Link

Document

Creates a new label and arrow annotation.

Usage

From source file:org.jfree.chart.demo.CategoryPointerAnnotationDemo1.java

private static JFreeChart createChart(CategoryDataset categorydataset) {
    JFreeChart jfreechart = ChartFactory.createLineChart("Java Standard Class Library", "Release",
            "Class Count", categorydataset, PlotOrientation.VERTICAL, false, true, false);
    jfreechart.addSubtitle(new TextTitle("Number of Classes By Release"));
    TextTitle texttitle = new TextTitle(
            "Source: Java In A Nutshell (4th Edition) by David Flanagan (O'Reilly)");
    texttitle.setFont(new Font("SansSerif", 0, 10));
    texttitle.setPosition(RectangleEdge.BOTTOM);
    texttitle.setHorizontalAlignment(HorizontalAlignment.RIGHT);
    jfreechart.addSubtitle(texttitle);//w  w w.  j  a  v a  2  s.c o m
    jfreechart.setBackgroundPaint(Color.white);
    CategoryPlot categoryplot = (CategoryPlot) jfreechart.getPlot();
    categoryplot.setBackgroundPaint(Color.lightGray);
    categoryplot.setRangeGridlinePaint(Color.white);
    NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();
    numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    LineAndShapeRenderer lineandshaperenderer = (LineAndShapeRenderer) categoryplot.getRenderer();
    lineandshaperenderer.setBaseShapesVisible(true);
    lineandshaperenderer.setDrawOutlines(true);
    lineandshaperenderer.setUseFillPaint(true);
    lineandshaperenderer.setBaseFillPaint(Color.white);
    CategoryPointerAnnotation categorypointerannotation = new CategoryPointerAnnotation("Released 4-Dec-1998",
            "JDK 1.2", 1530D, -2.3561944901923448D);
    categorypointerannotation.setTextAnchor(TextAnchor.BOTTOM_RIGHT);
    categoryplot.addAnnotation(categorypointerannotation);
    return jfreechart;
}

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From source file:org.operamasks.faces.render.graph.ChartRenderer.java

private CategoryTextAnnotation createCategoryTextAnnotation(UITextAnnotation at, Comparable key) {
    CategoryTextAnnotation result;/*ww w  . ja  v a2  s .  co  m*/

    String label = at.getText();
    double value = Coercion.coerceToDouble(at.getyValue());

    if (at.isDrawArrow()) {
        Double angle = at.getArrowAngle();
        if (angle == null)
            angle = 0.0;
        CategoryPointerAnnotation pointer = new CategoryPointerAnnotation(label, key, value,
                angle * Math.PI / 180.0);

        Double length = at.getArrowLength();
        if (length != null) {
            pointer.setBaseRadius(length);
        }

        Paint arrowColor = at.getArrowColor();
        if (arrowColor == null)
            arrowColor = at.getColor();
        if (arrowColor != null)
            pointer.setArrowPaint(arrowColor);

        result = pointer;
    } else {
        result = new CategoryTextAnnotation(label, key, value);
    }

    Font font = at.getFont();
    if (font != null) {
        result.setFont(font);
    }

    Paint color = at.getColor();
    if (color != null) {
        result.setPaint(color);
    }

    TextAnchor anchor = getTextAnchor(at.getAnchor());
    if (anchor != null) {
        result.setTextAnchor(anchor);
    }

    Double rotationAngle = at.getRotationAngle();
    if (rotationAngle != null) {
        result.setRotationAngle(rotationAngle * Math.PI / 180.0);
    }

    return result;
}

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