private static JFreeChart createChart(PieDataset dataset, String title) {
JFreeChart chart = ChartFactory.createPieChart3D(title, dataset, true, true, false);
PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setStartAngle(290.0d);
plot.setDirection(Rotation.CLOCKWISE);
plot.setForegroundAlpha(JFreeChart.DEFAULT_BACKGROUND_IMAGE_ALPHA);
return chart;
}
private static JFreeChart createChart(PieDataset piedataset) {
JFreeChart jfreechart =
ChartFactory.createPieChart3D("Statitic", piedataset, true, false, false);
PiePlot3D pieplot3d = (PiePlot3D) jfreechart.getPlot();
pieplot3d.setStartAngle(270D);
pieplot3d.setDirection(Rotation.ANTICLOCKWISE);
pieplot3d.setForegroundAlpha(0.6F);
return jfreechart;
}
// creates JFreeChart pie chart with data set
private JFreeChart createPieChart(PieDataset dataSet, String title) {
JFreeChart chart =
ChartFactory.createPieChart3D(
title, // chart title
dataSet, // data
true, // include legend
true, false);
PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setStartAngle(290);
plot.setDirection(Rotation.CLOCKWISE);
plot.setForegroundAlpha(0.5f);
return chart;
}
@Override
public JFreeChart createChart(PieDataset pieDataSet, boolean createLegend) {
JFreeChart chart =
ChartFactory.createPieChart3D(
null,
pieDataSet,
createLegend, // legend
true,
false);
PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setForegroundAlpha(0.5f);
return chart;
}
private JFreeChart createChart(final PieDataset dataset) {
final JFreeChart chart =
ChartFactory.createPieChart3D(
"Pie Chart 3D Demo 1 ", // chart title
dataset, // data
true, // include legend
true,
false);
final PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setStartAngle(290);
plot.setDirection(Rotation.CLOCKWISE);
plot.setForegroundAlpha(0.5f);
plot.setNoDataMessage("No data to display");
return chart;
}
public InputStream create3DPieChart(String title, PieDataset data, int pngwidth, int pngheight)
throws IOException {
JFreeChart localJFreeChart = ChartFactory.createPieChart3D(title, data, true, true, false);
PiePlot3D localPiePlot3D = (PiePlot3D) localJFreeChart.getPlot();
localPiePlot3D.setStartAngle(290.0D);
localPiePlot3D.setDirection(Rotation.CLOCKWISE);
localPiePlot3D.setForegroundAlpha(0.5F);
localPiePlot3D.setNoDataMessage("No data to display");
localPiePlot3D.setSectionPaint(0, new Color(152, 251, 152));
localPiePlot3D.setSectionPaint(1, new Color(238, 221, 130));
localPiePlot3D.setSectionPaint(2, new Color(255, 62, 150));
localPiePlot3D.setSectionPaint(3, new Color(139, 0, 0));
localPiePlot3D.setSectionPaint(4, new Color(181, 181, 181));
ChartRenderingInfo info = new ChartRenderingInfo();
BufferedImage bi =
localJFreeChart.createBufferedImage(pngwidth, pngheight, BufferedImage.SCALE_FAST, info);
ByteArrayOutputStream bs = new ByteArrayOutputStream();
ImageOutputStream imOut = ImageIO.createImageOutputStream(bs);
ImageIO.write(bi, "GIF", imOut);
// scaledImage1ΪBufferedImage£¬jpgΪͼÏñµÄÀàÐÍ
InputStream istream = new ByteArrayInputStream(bs.toByteArray());
return istream;
}
private void taxPie(
Rectangle rct, double totalValue, double tax, String taxLabel, String netLabel) {
double taxPercent = (tax / totalValue) * 100;
double netValuePercent = 100 - taxPercent;
DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue(taxLabel, taxPercent);
dataset.setValue(netLabel, netValuePercent);
PiePlot3D plot = new PiePlot3D(dataset);
plot.setLabelGenerator(new StandardPieItemLabelGenerator());
plot.setInsets(new Insets(0, 5, 5, 5));
plot.setToolTipGenerator(new CustomToolTipGenerator());
plot.setLabelGenerator(new CustomLabelGenerator());
plot.setSectionPaint(0, new Color(pgRed));
plot.setSectionPaint(1, new Color(pgGreen));
plot.setForegroundAlpha(.6f);
plot.setOutlinePaint(Color.white);
plot.setBackgroundPaint(Color.white);
JFreeChart chart =
new JFreeChart("Asset Distribution", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
chart.setBackgroundPaint(Color.white);
chart.setAntiAlias(true);
Rectangle page = rct;
try {
Image img =
Image.getInstance(
chart.createBufferedImage((int) page.getWidth(), (int) page.getHeight()), null);
drawDiagram(img, rct, 0, 72);
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
public static String getSimplePieChart(Map dataSource, String objectName, HttpSession session)
throws Throwable {
DefaultPieDataset dataset = new DefaultPieDataset();
Element chartObject =
XMLHandler.getElementByAttribute(getChartObjectList(), "name", objectName);
String title = chartObject.getAttributeValue("title");
int width = Integer.parseInt(chartObject.getAttributeValue("width"));
int height = Integer.parseInt(chartObject.getAttributeValue("height"));
Element LabelKeys = chartObject.getChild("Labels");
Element ValueKeys = chartObject.getChild("Values");
String valueKey = ValueKeys.getText();
String valueType = ValueKeys.getAttributeValue("type");
List labelKeys = LabelKeys.getChildren("Label");
String labelKey = LabelKeys.getText();
if (valueType.equalsIgnoreCase("number")) {
for (int i = 0; i < dataSource.size(); i++) {
Map rec = (Map) dataSource.get("ROW" + i);
Number value = (Number) rec.get(valueKey);
String label;
if (labelKeys.isEmpty()) {
label = DataFilter.show(rec, labelKey);
} else {
label = ((Element) labelKeys.get(i)).getText();
}
dataset.setValue(label, value);
}
} else {
for (int i = 0; i < dataSource.size(); i++) {
Map rec = (Map) dataSource.get("ROW" + i);
double value = (Double) rec.get(valueKey);
String label;
if (labelKeys.isEmpty()) {
label = DataFilter.show(rec, labelKey);
} else {
label = ((Element) labelKeys.get(i)).getText();
}
dataset.setValue(label, value);
}
}
JFreeChart chart =
ChartFactory.createPieChart3D(
title,
dataset,
chartObject.getAttribute("showLegend").getBooleanValue(),
chartObject.getAttribute("showToolTips").getBooleanValue(),
chartObject.getAttribute("urls").getBooleanValue());
PiePlot3D pie3dplot = (PiePlot3D) chart.getPlot();
float alpha = 0.7F;
if (chartObject.getAttribute("alpha") != null) {
alpha = chartObject.getAttribute("alpha").getFloatValue();
}
pie3dplot.setForegroundAlpha(alpha);
return ServletUtilities.saveChartAsPNG(chart, width, height, null, session);
}