如何使用POI将竖线添加到条形图(水平)中。我正在尝试添加类似于此橙色垂直线的线。 Bar chart + vertical line
有关手动MS Excel工作的信息,请参见此处 https://www.extendoffice.com/documents/excel/2344-excel-add-vertical-line-to-bar-chart.html
我已将此答案用于将柱状图与水平折线图相结合 https://stackoverflow.com/a/47080178/9693259
要创建此图 Column chart + horizontal line
我已将柱形图更改为条形图 Bar chart + horizontal line
但是我找不到像将列更改为条形图那样如何更改折线图的方向。 条形图的类别轴在左侧,值轴在底部。 折线图仅在底部接受类别轴。
答案 0 :(得分:0)
如果您正确阅读了链接的How to add vertical/average line to bar chart in Excel?,那么您会看到,有条形图和散点图组合在一起,而不是条形图和折线图。这是因为平均值必须在图表的X轴上,并且只有散点图才能在X轴上显示十进制值。对于所有其他图表,X轴是类别轴。
因此,要使用apache poi
与链接文章中的内容相同,我们可以使用底层底层ooxml bean(ooxml-schemas-*.jar
必须在类路径中)来做到这一点:
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.usermodel.charts.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFChart;
import org.apache.poi.xssf.usermodel.XSSFDrawing;
import org.openxmlformats.schemas.drawingml.x2006.chart.*;
public class BarAndScatterChartLowLevel {
public static void main(String[] args) throws Exception {
Workbook wb = new XSSFWorkbook();
Sheet sheet = wb.createSheet("Sheet1");
Row row;
Cell cell;
row = sheet.createRow(0);
row.createCell(0);
row.createCell(1).setCellValue("Bars");
for (int r = 1; r < 7; r++) {
row = sheet.createRow(r);
cell = row.createCell(0);
cell.setCellValue("C" + r);
cell = row.createCell(1);
cell.setCellFormula("RANDBETWEEN(5, 10)/10");
}
row = sheet.createRow(7);
row.createCell(0).setCellValue("Average");
row = sheet.createRow(8);
row.createCell(0).setCellValue("Y");
row.createCell(1).setCellValue("X");
row = sheet.createRow(9);
row.createCell(0).setCellValue(0);
row.createCell(1).setCellFormula("AVERAGE($B$2:$B$7)");
row = sheet.createRow(10);
row.createCell(0).setCellValue(1);
row.createCell(1).setCellFormula("AVERAGE($B$2:$B$7)");
Drawing drawing = sheet.createDrawingPatriarch();
ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 4, 0, 11, 15);
XSSFChart chart = ((XSSFDrawing)drawing).createChart(anchor);
CTChart ctChart = chart.getCTChart();
CTPlotArea ctPlotArea = ctChart.getPlotArea();
//the bar chart
CTBarChart ctBarChart = ctPlotArea.addNewBarChart();
CTBoolean ctBoolean = ctBarChart.addNewVaryColors();
ctBoolean.setVal(true);
ctBarChart.addNewBarDir().setVal(STBarDir.BAR);
//the bar series
CTBarSer ctBarSer = ctBarChart.addNewSer();
CTSerTx ctSerTx = ctBarSer.addNewTx();
CTStrRef ctStrRef = ctSerTx.addNewStrRef();
ctStrRef.setF("Sheet1!$B$1");
ctBarSer.addNewIdx().setVal(0);
CTAxDataSource cttAxDataSource = ctBarSer.addNewCat();
ctStrRef = cttAxDataSource.addNewStrRef();
ctStrRef.setF("Sheet1!$A$2:$A$7");
CTNumDataSource ctNumDataSource = ctBarSer.addNewVal();
CTNumRef ctNumRef = ctNumDataSource.addNewNumRef();
ctNumRef.setF("Sheet1!$B$2:$B$7");
//telling the BarChart that it has axes and giving them Ids
ctBarChart.addNewAxId().setVal(123456); //cat axis 1 (bars)
ctBarChart.addNewAxId().setVal(123457); //val axis 1 (left)
//the scatter chart
CTScatterChart ctScatterChart = ctPlotArea.addNewScatterChart();
ctBoolean = ctScatterChart.addNewVaryColors();
ctBoolean.setVal(true);
//the scatter series
CTScatterSer ctScatterSer = ctScatterChart.addNewSer();
ctSerTx = ctScatterSer.addNewTx();
ctStrRef = ctSerTx.addNewStrRef();
ctStrRef.setF("Sheet1!$A$8");
ctScatterSer.addNewIdx().setVal(1);
cttAxDataSource = ctScatterSer.addNewXVal();
ctStrRef = cttAxDataSource.addNewStrRef();
ctStrRef.setF("Sheet1!$B$10:$B$11");
ctNumDataSource = ctScatterSer.addNewYVal();
ctNumRef = ctNumDataSource.addNewNumRef();
ctNumRef.setF("Sheet1!$A$10:$A$11");
//telling the ScatterChart that it has axes and giving them Ids
ctScatterChart.addNewAxId().setVal(123458); //cat axis 2 (scatter)
ctScatterChart.addNewAxId().setVal(123459); //val axis 2 (right)
//cat axis 1 (bars)
CTCatAx ctCatAx = ctPlotArea.addNewCatAx();
ctCatAx.addNewAxId().setVal(123456); //id of the cat axis
CTScaling ctScaling = ctCatAx.addNewScaling();
ctScaling.addNewOrientation().setVal(STOrientation.MIN_MAX);
ctCatAx.addNewDelete().setVal(false);
ctCatAx.addNewAxPos().setVal(STAxPos.B);
ctCatAx.addNewCrossAx().setVal(123457); //id of the val axis
ctCatAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//val axis 1 (left)
CTValAx ctValAx = ctPlotArea.addNewValAx();
ctValAx.addNewAxId().setVal(123457); //id of the val axis
ctScaling = ctValAx.addNewScaling();
ctScaling.addNewOrientation().setVal(STOrientation.MIN_MAX);
ctValAx.addNewDelete().setVal(false);
ctValAx.addNewAxPos().setVal(STAxPos.L);
ctValAx.addNewCrossAx().setVal(123456); //id of the cat axis
ctValAx.addNewCrosses().setVal(STCrosses.AUTO_ZERO); //this val axis crosses the cat axis at zero
ctValAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//cat axis 2 (scatter)
ctCatAx = ctPlotArea.addNewCatAx();
ctCatAx.addNewAxId().setVal(123458); //id of the cat axis
ctScaling = ctCatAx.addNewScaling();
ctScaling.addNewOrientation().setVal(STOrientation.MIN_MAX);
ctCatAx.addNewDelete().setVal(true); //this cat axis is deleted
ctCatAx.addNewAxPos().setVal(STAxPos.B);
ctCatAx.addNewCrossAx().setVal(123459); //id of the val axis
ctCatAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//val axis 2 (right)
ctValAx = ctPlotArea.addNewValAx();
ctValAx.addNewAxId().setVal(123459); //id of the val axis
ctScaling = ctValAx.addNewScaling();
ctScaling.addNewOrientation().setVal(STOrientation.MIN_MAX);
ctScaling.addNewMax().setVal(1.0);
ctValAx.addNewDelete().setVal(false);
ctValAx.addNewAxPos().setVal(STAxPos.R);
ctValAx.addNewCrossAx().setVal(123458); //id of the cat axis
ctValAx.addNewCrosses().setVal(STCrosses.MAX); //this val axis crosses the cat axis at max value
ctValAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//legend
CTLegend ctLegend = ctChart.addNewLegend();
ctLegend.addNewLegendPos().setVal(STLegendPos.B);
ctLegend.addNewOverlay().setVal(false);
FileOutputStream fileOut = new FileOutputStream("BarAndScatterChart.xlsx");
wb.write(fileOut);
fileOut.close();
wb.close();
}
}
但是由于apache poi 4.0.1
现在提供了XDDF
的东西,因此可以执行以下操作:
import java.io.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.util.*;
import org.apache.poi.xddf.usermodel.*;
import org.apache.poi.xddf.usermodel.chart.*;
public class BarAndScatterChart {
public static void main(String[] args) throws IOException {
try (XSSFWorkbook wb = new XSSFWorkbook()) {
// Create the data
XSSFSheet sheet = wb.createSheet("Sheet1");
Row row;
Cell cell;
row = sheet.createRow(0);
row.createCell(0);
row.createCell(1).setCellValue("Bars");
for (int r = 1; r < 7; r++) {
row = sheet.createRow(r);
cell = row.createCell(0);
cell.setCellValue("C" + r);
cell = row.createCell(1);
cell.setCellFormula("RANDBETWEEN(5, 10)/10");
}
row = sheet.createRow(7);
row.createCell(0).setCellValue("Average");
row = sheet.createRow(8);
row.createCell(0).setCellValue("Y");
row.createCell(1).setCellValue("X");
row = sheet.createRow(9);
row.createCell(0).setCellValue(0);
row.createCell(1).setCellFormula("AVERAGE($B$2:$B$7)");
row = sheet.createRow(10);
row.createCell(0).setCellValue(1);
row.createCell(1).setCellFormula("AVERAGE($B$2:$B$7)");
// create data sources
XDDFDataSource<String> cat = XDDFDataSourcesFactory.fromStringCellRange(sheet, new CellRangeAddress(1, 6, 0, 0));
XDDFNumericalDataSource<Double> barVal = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 6, 1, 1));
XDDFDataSource<Double> scatterX = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(9, 10, 1, 1));
XDDFNumericalDataSource<Double> scatterY = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(9, 10, 0, 0));
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 4, 0, 11, 15);
XSSFChart chart = drawing.createChart(anchor);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.BOTTOM);
// bar chart
// Use a category axis for the bottom axis.
XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
leftAxis.setCrossBetween(AxisCrossBetween.BETWEEN);
XDDFChartData data = chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);
XDDFChartData.Series series1 = data.addSeries(cat, barVal);
series1.setTitle("bars", new CellReference(sheet.getSheetName(), 0, 1, true, true));
chart.plot(data);
// in order to transform a bar chart into a column chart, you just need to change the bar direction
XDDFBarChartData bar = (XDDFBarChartData) data;
bar.setBarDirection(BarDirection.BAR);
solidFillSeries(data, 0, PresetColor.CHARTREUSE);
// scatter chart
// axis must be there but must not be visible
bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
bottomAxis.setVisible(false);
// right axis for scatter chart
XDDFValueAxis rightAxis = chart.createValueAxis(AxisPosition.RIGHT);
rightAxis.setCrosses(AxisCrosses.MAX);
rightAxis.setMaximum(1.0);
// set correct cross axis
bottomAxis.crossAxis(rightAxis);
rightAxis.crossAxis(bottomAxis);
data = chart.createData(ChartTypes.SCATTER, bottomAxis, rightAxis);
XDDFScatterChartData.Series series2 = (XDDFScatterChartData.Series)data.addSeries(scatterX, scatterY);
series2.setTitle("average", new CellReference(sheet.getSheetName(), 7, 0, true, true));
series2.setSmooth(false);
chart.plot(data);
// correct the id and order, must not be 0 again because there is one bar series already
chart.getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0).getIdx().setVal(1);
chart.getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0).getOrder().setVal(1);
solidLineSeries(data, 0, PresetColor.BLUE);
// Write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("ooxml-bar-and-scatter-chart.xlsx")) {
wb.write(fileOut);
}
}
}
private static void solidFillSeries(XDDFChartData data, int index, PresetColor color) {
XDDFSolidFillProperties fill = new XDDFSolidFillProperties(XDDFColor.from(color));
XDDFChartData.Series series = data.getSeries().get(index);
XDDFShapeProperties properties = series.getShapeProperties();
if (properties == null) {
properties = new XDDFShapeProperties();
}
properties.setFillProperties(fill);
series.setShapeProperties(properties);
}
private static void solidLineSeries(XDDFChartData data, int index, PresetColor color) {
XDDFSolidFillProperties fill = new XDDFSolidFillProperties(XDDFColor.from(color));
XDDFLineProperties line = new XDDFLineProperties();
line.setFillProperties(fill);
XDDFChartData.Series series = data.getSeries().get(index);
XDDFShapeProperties properties = series.getShapeProperties();
if (properties == null) {
properties = new XDDFShapeProperties();
}
properties.setLineProperties(line);
series.setShapeProperties(properties);
}
}