private PdfPCell createKPGSPieChartCell(KeyValue[] values, String title)
throws IOException, BadElementException {
DefaultPieDataset dataset = new DefaultPieDataset();
for (int n = 0; n < values.length; n++) {
dataset.setValue(values[n].getKey(), new Double(values[n].getValue()).doubleValue());
}
// create chart
final JFreeChart chart =
ChartFactory.createPieChart(
title, // chart title
dataset, // data
true, // legend
false, // tooltips
false // urls
);
// customize chart
PiePlot plot = (PiePlot) chart.getPlot();
plot.setBackgroundPaint(java.awt.Color.WHITE);
if (values.length > 0) {
if (values[0].getKey().equalsIgnoreCase("?") && values.length > 1) {
plot.setExplodePercent(values[1].getKey(), 0.2);
} else {
plot.setExplodePercent(values[0].getKey(), 0.2);
}
}
plot.setLegendLabelGenerator(new KPGSLegendGenerator());
plot.setLabelGenerator(new KPGSLabelGenerator(values));
plot.setOutlineVisible(false);
chart.setAntiAlias(true);
LegendTitle legendTitle = (LegendTitle) chart.getSubtitle(0);
legendTitle.setFrame(BlockBorder.NONE);
legendTitle.setBackgroundPaint(null);
ByteArrayOutputStream os = new ByteArrayOutputStream();
ChartUtilities.writeChartAsPNG(
os,
chart,
MedwanQuery.getInstance().getConfigInt("stats.piechartwidth", 640),
MedwanQuery.getInstance().getConfigInt("stats.piechartheight", 480));
cell = new PdfPCell();
cell.setColspan(50);
cell.setImage(Image.getInstance(os.toByteArray()));
cell.setBorder(PdfPCell.NO_BORDER);
cell.setPaddingLeft(5);
cell.setPaddingRight(5);
return cell;
}
private JFreeChart getPieChart() {
// Load the data, if necessary
loadData();
// Create a chart and return it
final JFreeChart chart =
ChartFactory.createPieChart(
getTitle(), getPieDataset(), useLegend(), useTooltips(), useURLs());
// Customize the labels and legend
final PiePlot pieplot = (PiePlot) chart.getPlot();
pieplot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0} ({2})"));
// pieplot.setSimpleLabels(true);
pieplot.setNoDataMessage("No data available");
if (useLegend()) {
pieplot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator("{0} ({1})"));
chart.getLegend().setPosition(RectangleEdge.RIGHT);
// pieplot.setLegendLabelToolTipGenerator(new StandardPieSectionLabelGenerator("{0}: {2}%"));
}
return chart;
}
public static JFreeChart createPieChart(String chartName, DBSeerDataSet dataset) {
StatisticalPackageRunner runner = DBSeerGUI.runner;
runner.eval(
"[title legends Xdata Ydata Xlabel Ylabel timestamp] = plotter.plot" + chartName + ";");
String title = runner.getVariableString("title");
Object[] legends = (Object[]) runner.getVariableCell("legends");
Object[] xCellArray = (Object[]) runner.getVariableCell("Xdata");
Object[] yCellArray = (Object[]) runner.getVariableCell("Ydata");
String xLabel = runner.getVariableString("Xlabel");
String yLabel = runner.getVariableString("Ylabel");
timestamp = runner.getVariableDouble("timestamp");
DefaultPieDataset pieDataSet = new DefaultPieDataset();
int numLegends = legends.length;
int numXCellArray = xCellArray.length;
int numYCellArray = yCellArray.length;
int dataCount = 0;
if (numXCellArray != numYCellArray) {
JOptionPane.showMessageDialog(
null,
"The number of X dataset and Y dataset does not match.",
"The number of X dataset and Y dataset does not match.",
JOptionPane.ERROR_MESSAGE);
return null;
}
final java.util.List<String> transactionTypeNames = dataset.getTransactionTypeNames();
for (int i = 0; i < numYCellArray; ++i) {
double[] xArray = (double[]) xCellArray[i];
runner.eval("yArraySize = size(Ydata{" + (i + 1) + "});");
runner.eval("yArray = Ydata{" + (i + 1) + "};");
double[] yArraySize = runner.getVariableDouble("yArraySize");
double[] yArray = runner.getVariableDouble("yArray");
int xLength = xArray.length;
int row = (int) yArraySize[0];
int col = (int) yArraySize[1];
for (int c = 0; c < col; ++c) {
if (c < transactionTypeNames.size()) {
String name = transactionTypeNames.get(c);
if (!name.isEmpty()) {
// pieDataSet.setValue(name, new Double(yArray.getRealValue(0, c)));
pieDataSet.setValue(name, yArray[c]);
} else {
// pieDataSet.setValue("Transaction Type " + (c+1), yArray.getRealValue(0, c));
pieDataSet.setValue("Transaction Type " + (c + 1), yArray[c]);
}
}
}
}
JFreeChart chart = ChartFactory.createPieChart(title, pieDataSet, true, true, false);
PiePlot plot = (PiePlot) chart.getPlot();
plot.setLabelGenerator(
new StandardPieSectionLabelGenerator(
"{0}: {1} ({2})", new DecimalFormat("0"), new DecimalFormat("0%")));
plot.setLegendLabelGenerator(
new PieSectionLabelGenerator() {
@Override
public String generateSectionLabel(PieDataset pieDataset, Comparable comparable) {
return (String) comparable;
}
@Override
public AttributedString generateAttributedSectionLabel(
PieDataset pieDataset, Comparable comparable) {
return null;
}
});
return chart;
}
/* (non-Javadoc)
* @see com.lily.dap.service.report2.impl.chart.ChartStrategy#outputChart(java.lang.String, int, int, java.util.Map, java.util.List, java.io.OutputStream)
*/
public void outputChart(
String type,
int height,
int width,
Map<String, String> paramMap,
Map<String, Object> variableMap,
List<Map<String, Object>> dataList,
OutputStream os)
throws IOException {
String nameField = ChartUtils.evaluateParam(paramMap.get("namefield"), variableMap);
String valueField = ChartUtils.evaluateParam(paramMap.get("valuefield"), variableMap);
DefaultPieDataset dataset = createDataset(dataList, nameField, valueField);
String title = ChartUtils.evaluateParam(paramMap.get("title"), variableMap);
boolean legend =
paramMap.get("legend") == null
? true
: "true"
.equals(
ChartUtils.evaluateParam(paramMap.get("legend"), variableMap).toLowerCase());
JFreeChart chart;
if (ChartConstants.TYPE_PIE3D.equals(type))
chart =
ChartFactory.createPieChart3D(
title, // 图表标题
dataset, // 数据集
legend, // 是否显示图例
false, // 是否生成工具
false // 是否生成URL链接
);
else
chart =
ChartFactory.createPieChart(
title, // 图表标题
dataset, // 数据集
legend, // 是否显示图例
false, // 是否生成工具
false // 是否生成URL链接
);
// 设置标题字体
if (chart.getTitle() != null) chart.getTitle().setFont(titleFont);
// 设置图例字体
if (chart.getLegend() != null) chart.getLegend().setItemFont(legendFont);
PiePlot pie = (PiePlot) chart.getPlot();
// if (pie instanceof PiePlot3D) {
// PiePlot3D pie3d = (PiePlot3D)pie;
// }
// 设置前景透明度
if (paramMap.get("foregroundAlpha") != null) {
float f =
Float.parseFloat(ChartUtils.evaluateParam(paramMap.get("foregroundAlpha"), variableMap));
pie.setForegroundAlpha(f);
}
// 设置标签的最大宽度
if (paramMap.get("maximumlabelwidth") != null) {
float f =
Float.parseFloat(
ChartUtils.evaluateParam(paramMap.get("maximumlabelwidth"), variableMap));
pie.setMaximumLabelWidth(f);
}
// 设置标饼上标签的标签字体
pie.setLabelFont(labelFont);
String labelFormat = paramMap.get("labelformat");
if (labelFormat != null) {
/*
* 因为labelformat参数可能包含{0}、{1}、{2}这样的字符串，所以要通过检查'{'后面跟的字符是不是数字，来判断labelformat参数是不是表达式
*/
int index = labelFormat.indexOf('{');
if (index >= 0) {
char ch = labelFormat.charAt(index + 1);
if (!CharUtils.isAsciiNumeric(ch))
labelFormat = ChartUtils.evaluateParam(labelFormat, variableMap);
}
// 设置饼上标签的显示格式，其中，0：数据名称，1：数据值，2：数据占整个百分比
StandardPieSectionLabelGenerator generator =
new StandardPieSectionLabelGenerator(labelFormat);
pie.setLabelGenerator(generator);
}
String legendformat = paramMap.get("legendformat");
if (legendformat != null) {
/*
* 因为legendformat参数可能包含{0}、{1}、{2}这样的字符串，所以要通过检查'{'后面跟的字符是不是数字，来判断legendformat参数是不是表达式
*/
int index = legendformat.indexOf('{');
if (index >= 0) {
char ch = legendformat.charAt(index + 1);
if (!CharUtils.isAsciiNumeric(ch))
legendformat = ChartUtils.evaluateParam(legendformat, variableMap);
}
// 设置饼上标签的显示格式，其中，0：数据名称，1：数据值，2：数据占整个百分比
StandardPieSectionLabelGenerator generator =
new StandardPieSectionLabelGenerator(legendformat);
pie.setLegendLabelGenerator(generator);
}
if (paramMap.get("color") != null) {
int index = 0;
String[] colGroups = ChartUtils.evaluateParam(paramMap.get("color"), variableMap).split(",");
for (String colVal : colGroups) {
Color color = ChartUtils.createColor(colVal.trim());
pie.setSectionPaint(index++, color);
}
}
// 设置饼图是圆形还是椭圆形
if (paramMap.get("circular") != null) {
boolean isCircular =
"true"
.equals(
ChartUtils.evaluateParam(paramMap.get("circular"), variableMap).toLowerCase());
pie.setCircular(isCircular);
}
ChartUtilities.writeChartAsJPEG(os, 1, chart, width, height, null);
}
