Получено из примеров диаграмм в https://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/xssf/usermodel/examples/. Вот пример PieChart
, использующий материал XDDF
:
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xddf.usermodel.chart.LegendPosition;
import org.apache.poi.xddf.usermodel.chart.XDDFChartData;
import org.apache.poi.xddf.usermodel.chart.XDDFChartLegend;
import org.apache.poi.xddf.usermodel.chart.XDDFDataSource;
import org.apache.poi.xddf.usermodel.chart.XDDFDataSourcesFactory;
import org.apache.poi.xddf.usermodel.chart.XDDFNumericalDataSource;
import org.apache.poi.xddf.usermodel.chart.XDDFPieChartData;
import org.apache.poi.xssf.usermodel.XSSFChart;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFDrawing;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class PieChart {
public static void main(String[] args) throws IOException {
try (XSSFWorkbook wb = new XSSFWorkbook()) {
XSSFSheet sheet = wb.createSheet("piechart");
final int NUM_OF_ROWS = 2;
final int NUM_OF_COLUMNS = 10;
// Create a row and put some cells in it. Rows are 0 based.
Row row;
Cell cell;
for (int rowIndex = 0; rowIndex < NUM_OF_ROWS; rowIndex++) {
row = sheet.createRow((short) rowIndex);
for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) {
cell = row.createCell((short) colIndex);
if (rowIndex == 0) cell.setCellValue("Cat " + (colIndex + 1));
else cell.setCellValue((colIndex + 1) * (rowIndex + 1));
}
}
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 4, 10, 25);
XSSFChart chart = drawing.createChart(anchor);
chart.setTitleText("Pie Chart");
chart.setTitleOverlay(false);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.TOP_RIGHT);
XDDFDataSource<String> cat = XDDFDataSourcesFactory.fromStringCellRange(sheet,
new CellRangeAddress(0, 0, 0, NUM_OF_COLUMNS - 1));
XDDFNumericalDataSource<Double> val = XDDFDataSourcesFactory.fromNumericCellRange(sheet,
new CellRangeAddress(1, 1, 0, NUM_OF_COLUMNS - 1));
XDDFChartData data = new XDDFPieChartData(chart.getCTChart().getPlotArea().addNewPieChart());
data.setVaryColors(true);
data.addSeries(cat, val);
chart.plot(data);
// Write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("ooxml-pie-chart.xlsx")) {
wb.write(fileOut);
}
}
}
}
Выше приведен минимальный пример, использующий толькоXDDF
вещи.Вот более расширенная версия, которая устанавливает метки данных и делает диаграмму видимой в LibreOffice/OpenOffice Calc
.Но для этого нужно использовать материал низкого уровня org.openxmlformats.schemas.drawingml.x2006.chart.*
.
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xddf.usermodel.chart.LegendPosition;
import org.apache.poi.xddf.usermodel.chart.XDDFChartData;
import org.apache.poi.xddf.usermodel.chart.XDDFChartLegend;
import org.apache.poi.xddf.usermodel.chart.XDDFDataSource;
import org.apache.poi.xddf.usermodel.chart.XDDFDataSourcesFactory;
import org.apache.poi.xddf.usermodel.chart.XDDFNumericalDataSource;
import org.apache.poi.xddf.usermodel.chart.XDDFPieChartData;
import org.apache.poi.xssf.usermodel.XSSFChart;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFDrawing;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.DefaultIndexedColorMap;
public class PieChart {
public static void main(String[] args) throws IOException {
try (XSSFWorkbook wb = new XSSFWorkbook()) {
XSSFSheet sheet = wb.createSheet("piechart");
final int NUM_OF_ROWS = 2;
final int NUM_OF_COLUMNS = 10;
// Create a row and put some cells in it. Rows are 0 based.
Row row;
Cell cell;
for (int rowIndex = 0; rowIndex < NUM_OF_ROWS; rowIndex++) {
row = sheet.createRow((short) rowIndex);
for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) {
cell = row.createCell((short) colIndex);
if (rowIndex == 0) cell.setCellValue("Cat " + (colIndex + 1));
else cell.setCellValue((colIndex + 1) * (rowIndex + 1));
}
}
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 4, 10, 25);
XSSFChart chart = drawing.createChart(anchor);
chart.setTitleText("Pie Chart");
chart.setTitleOverlay(false);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.TOP_RIGHT);
XDDFDataSource<String> cat = XDDFDataSourcesFactory.fromStringCellRange(sheet,
new CellRangeAddress(0, 0, 0, NUM_OF_COLUMNS - 1));
XDDFNumericalDataSource<Double> val = XDDFDataSourcesFactory.fromNumericCellRange(sheet,
new CellRangeAddress(1, 1, 0, NUM_OF_COLUMNS - 1));
XDDFChartData data = new XDDFPieChartData(chart.getCTChart().getPlotArea().addNewPieChart());
data.setVaryColors(true);
XDDFChartData.Series series = data.addSeries(cat, val);
chart.plot(data);
// Add data labels
if (!chart.getCTChart().getPlotArea().getPieChartArray(0).getSerArray(0).isSetDLbls())
chart.getCTChart().getPlotArea().getPieChartArray(0).getSerArray(0).addNewDLbls();
chart.getCTChart().getPlotArea().getPieChartArray(0).getSerArray(0).getDLbls()
.addNewDLblPos().setVal(org.openxmlformats.schemas.drawingml.x2006.chart.STDLblPos.OUT_END);
chart.getCTChart().getPlotArea().getPieChartArray(0).getSerArray(0).getDLbls()
.addNewShowLegendKey().setVal(true);
chart.getCTChart().getPlotArea().getPieChartArray(0).getSerArray(0).getDLbls()
.addNewShowPercent().setVal(true);
// Do not auto delete the title; is necessary for showing title in Calc
if (chart.getCTChart().getAutoTitleDeleted() == null) chart.getCTChart().addNewAutoTitleDeleted();
chart.getCTChart().getAutoTitleDeleted().setVal(false);
// Data point colors; is necessary for showing data points in Calc
int pointCount = series.getCategoryData().getPointCount();
for (int p = 0; p < pointCount; p++) {
chart.getCTChart().getPlotArea().getPieChartArray(0).getSerArray(0).addNewDPt().addNewIdx().setVal(p);
chart.getCTChart().getPlotArea().getPieChartArray(0).getSerArray(0).getDPtArray(p)
.addNewSpPr().addNewSolidFill().addNewSrgbClr().setVal(DefaultIndexedColorMap.getDefaultRGB(p+10));
}
// Write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("ooxml-pie-chart.xlsx")) {
wb.write(fileOut);
}
}
}
}