Develop Reference

Color BarChart bars depending on data using Apache POI

I'm trying to set the fill color of each individual bar of my chart to a separate custom color but I have yet to discover how.
Here's my code so far. The layout is fine but the chart bars are all the same color (cornflower blue). I'm aware that I can use the XDDFChartData:setVaryColors option to use different colors but I can't find a way to specify which colors to use (say in my example 'Books' in red, 'DVDs' in blue, etc.).
final Workbook workbook = new XSSFWorkbook();
final Sheet sheet = workbook.createSheet("MySheet");
Row row = sheet.createRow(1);
Cell cell = row.createCell(1);
cell.setCellValue("Product");
cell = row.createCell(2);
cell.setCellValue("Orders");
row = sheet.createRow(2);
cell = row.createCell(1);
cell.setCellValue("Books");
cell = row.createCell(2);
cell.setCellValue(50);
row = sheet.createRow(3);
cell = row.createCell(1);
cell.setCellValue("DVDs");
cell = row.createCell(2);
cell.setCellValue(25);
row = sheet.createRow(4);
cell = row.createCell(1);
cell.setCellValue("CDs");
cell = row.createCell(2);
cell.setCellValue(140);
XSSFDrawing drawing = ((XSSFSheet) sheet).createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 4, 1, 12, 15 );
XSSFChart chart = drawing.createChart(anchor);
chart.setTitleText("Products");
chart.setTitleOverlay(false);
CTBoolean FALSE = CTBoolean.Factory.newInstance();
FALSE.setVal(false);
chart.getCTChartSpace().setRoundedCorners(FALSE);
XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
bottomAxis.setMajorTickMark(AxisTickMark.NONE);
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
leftAxis.setCrossBetween(AxisCrossBetween.BETWEEN);
XDDFDataSource<String> compliances = XDDFDataSourcesFactory.fromStringCellRange((XSSFSheet) sheet, new CellRangeAddress(2, 4, 1, 1));
XDDFNumericalDataSource<Double> components = XDDFDataSourcesFactory.fromNumericCellRange((XSSFSheet) sheet, new CellRangeAddress(2, 4, 2, 2));
XDDFChartData data = chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);
XDDFChartData.Series series1 = data.addSeries(compliances, components);
series1.setTitle("Components by Compliance", null);
chart.plot(data);
XDDFBarChartData bar = (XDDFBarChartData) data;
bar.setBarDirection(BarDirection.BAR);
CTSRgbColor rgb = CTSRgbColor.Factory.newInstance();
Color col1 = new Color(100, 149, 237);
rgb.setVal(new byte[]{(byte) col1.getRed(), (byte) col1.getGreen(), (byte) col1.getBlue()});
CTSolidColorFillProperties fillProp = CTSolidColorFillProperties.Factory.newInstance();
fillProp.setSrgbClr(rgb);
CTShapeProperties ctShapeProperties = CTShapeProperties.Factory.newInstance();
ctShapeProperties.setSolidFill(fillProp);
chart.getCTChart().getPlotArea().getBarChartList().get(0).getSerList().get(0).setSpPr(ctShapeProperties);
IntStream.range(0, 10).forEach(sheet::autoSizeColumn);
Any ideas?
Cheers!

It seems as if you wants coloring each data point instead of the bar series. If so then this is the same problem as with how to set custom colors in pie 3D Chart using Apache poi 4.1.2. Difference is only the chart type.
There is no XDDF method to set data point colors until now. Only series colors can be set using XDDF methods. So one must use the underlying org.openxmlformats.schemas.drawingml.x2006.chart.* classes. Following complete example shows this. It sets data point colors from a bunch of formerly set rgb byte arrays.
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xddf.usermodel.chart.*;
import org.apache.poi.xssf.usermodel.*;
import org.openxmlformats.schemas.drawingml.x2006.chart.*;
public class BarChartOneSeries {
public static void main(String[] args) throws IOException {
final Workbook workbook = new XSSFWorkbook();
final Sheet sheet = workbook.createSheet("MySheet");
Row row = sheet.createRow(1);
Cell cell = row.createCell(1);
cell.setCellValue("Product");
cell = row.createCell(2);
cell.setCellValue("Orders");
row = sheet.createRow(2);
cell = row.createCell(1);
cell.setCellValue("Books");
cell = row.createCell(2);
cell.setCellValue(50);
row = sheet.createRow(3);
cell = row.createCell(1);
cell.setCellValue("DVDs");
cell = row.createCell(2);
cell.setCellValue(25);
row = sheet.createRow(4);
cell = row.createCell(1);
cell.setCellValue("CDs");
cell = row.createCell(2);
cell.setCellValue(140);
XSSFDrawing drawing = ((XSSFSheet) sheet).createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 4, 1, 12, 15 );
XSSFChart chart = drawing.createChart(anchor);
chart.setTitleText("Products");
chart.setTitleOverlay(false);
CTBoolean FALSE = CTBoolean.Factory.newInstance();
FALSE.setVal(false);
chart.getCTChartSpace().setRoundedCorners(FALSE);
XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
bottomAxis.setMajorTickMark(AxisTickMark.NONE);
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
leftAxis.setCrossBetween(AxisCrossBetween.BETWEEN);
XDDFDataSource<String> compliances = XDDFDataSourcesFactory.fromStringCellRange((XSSFSheet) sheet, new CellRangeAddress(2, 4, 1, 1));
XDDFNumericalDataSource<Double> components = XDDFDataSourcesFactory.fromNumericCellRange((XSSFSheet) sheet, new CellRangeAddress(2, 4, 2, 2));
XDDFChartData data = chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);
XDDFChartData.Series series = data.addSeries(compliances, components);
series.setTitle("Components by Compliance", null);
chart.plot(data);
XDDFBarChartData bar = (XDDFBarChartData) data;
bar.setBarDirection(BarDirection.BAR);
// 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
// some rgb colors to choose
byte[][] colors = new byte[][] {
new byte[] {127,(byte)255, 127},
new byte[] {(byte)200, (byte)200, (byte)200},
new byte[] {(byte)255,(byte)255, 127},
new byte[] {(byte)255, 127, 127},
new byte[] {(byte)255, 0, 0},
new byte[] {0, (byte)255, 0},
new byte[] {0, 0, (byte)255},
new byte[] {80, 80, 80}
};
// set data point colors
int pointCount = series.getCategoryData().getPointCount();
for (int p = 0; p < pointCount; p++) {
chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(0).addNewDPt().addNewIdx().setVal(p);
chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(0).getDPtArray(p)
.addNewSpPr().addNewSolidFill().addNewSrgbClr().setVal(colors[p]);
}
// write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("ooxml-bar-chart.xlsx")) {
workbook.write(fileOut);
}
workbook.close();
}
}

For Apache poi line chart, how to make first column doesn't display on y-axis

I use poi version is 4.1.1.
Now I want to make first column doesn't display on y-axis, means I want to add some space between y-axis and the first column.
I notice there is an option "Axis position" on x-axis, when it set to "Between tick marks", it will work as I want.
But I don't know how to make it using apache-poi. Is it possible to make it?
here is the "Asis position in excel"
now the line chart looks like
what I want
Thanks everyone!!!
Here is the code example from Apache website:
public class LineChart {
public static void main(String[] args) throws IOException {
try (XSSFWorkbook wb = new XSSFWorkbook()) {
XSSFSheet sheet = wb.createSheet("linechart");
final int NUM_OF_ROWS = 3;
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);
cell.setCellValue(colIndex * (rowIndex + 1.0));
}
}
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 10, 15);
XSSFChart chart = drawing.createChart(anchor);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.BOTTOM);
// Use a category axis for the bottom axis.
XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
//bottomAxis.setTitle("x"); // https://stackoverflow.com/questions/32010765
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
//leftAxis.setTitle("f(x)");
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
XDDFDataSource<Double> xs = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(0, 0, 0, NUM_OF_COLUMNS - 1));
XDDFNumericalDataSource<Double> ys1 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, 0, NUM_OF_COLUMNS - 1));
XDDFNumericalDataSource<Double> ys2 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(2, 2, 0, NUM_OF_COLUMNS - 1));
XDDFLineChartData data = (XDDFLineChartData) chart.createData(ChartTypes.LINE, bottomAxis, leftAxis);
XDDFLineChartData.Series series1 = (XDDFLineChartData.Series) data.addSeries(xs, ys1);
series1.setTitle("a", null); // https://stackoverflow.com/questions/21855842
//series1.setSmooth(false); // https://stackoverflow.com/questions/29014848
series1.setMarkerStyle(MarkerStyle.NONE); // https://stackoverflow.com/questions/39636138
XDDFLineChartData.Series series2 = (XDDFLineChartData.Series) data.addSeries(xs, ys2);
series2.setTitle("b", null);
//series2.setSmooth(true);
//series2.setMarkerSize((short) 6);
series2.setMarkerStyle(MarkerStyle.NONE); // https://stackoverflow.com/questions/39636138
CTBoolean ctBoolean = CTBoolean.Factory.newInstance();
ctBoolean.setVal(false);
CTPlotArea plotArea = chart.getCTChart().getPlotArea();
chart.getCTChartSpace().setRoundedCorners(ctBoolean);
for (CTLineSer ser : plotArea.getLineChartArray()[0].getSerArray()) {
CTDLbls ctdLbls = ser.addNewDLbls();
ctdLbls.setShowSerName(ctBoolean);
ctdLbls.setShowLegendKey(ctBoolean);
ctdLbls.setShowLeaderLines(ctBoolean);
ctdLbls.setShowCatName(ctBoolean);
CTDLblPos ctdLblPos = CTDLblPos.Factory.newInstance();
ctdLblPos.setVal(STDLblPos.CTR);
CTDLblPos.Factory.newInstance();
ctdLbls.setDLblPos(ctdLblPos);
}
chart.plot(data);
// if your series have missing values like https://stackoverflow.com/questions/29014848
// chart.displayBlanksAs(DisplayBlanks.GAP);
// https://stackoverflow.com/questions/24676460
solidLineSeries(data, 0, PresetColor.LIGHT_GREEN);
solidLineSeries(data, 1, PresetColor.DARK_RED);
// Write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("ooxml-line-chart.xlsx")) {
wb.write(fileOut);
}
}
}
//CTPresetLineDashProperties
private static void solidLineSeries(XDDFChartData data, int index, PresetColor color) {
XDDFSolidFillProperties fill = new XDDFSolidFillProperties(XDDFColor.from(color));
XDDFLineProperties line = new XDDFLineProperties();
if (index == 0) {
line.setPresetDash(new XDDFPresetLineDash(PresetLineDash.DOT));
}
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);
}
}

Per default the value axis and the category axis crosses exactly on category point. So if value axis crosses category axis at point 0, then it looks like your result now.
But if x axis is a category axis, then there is a setting XDDFValueAxis.setCrossBetween. If that is set to AxisCrossBetween.BETWEEN then the value axis crosses the category axis between the category points. This looks as you want.
So in your case:
...
// Use a category axis for the bottom axis.
XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
//bottomAxis.setTitle("x"); // https://stackoverflow.com/questions/32010765
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
//leftAxis.setTitle("f(x)");
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
leftAxis.setCrossBetween(AxisCrossBetween.BETWEEN);
...
Btw.: You should get rid of deprecated methods.
For example the get...Array() methods of ooxml-schemas are deprecated. Either you get a concrete item from the array using get...Array(item) or you get a List using get...List().
In your case:
...
//for (CTLineSer ser : plotArea.getLineChartArray()[0].getSerArray()) {
for (CTLineSer ser : plotArea.getLineChartArray(0).getSerList()) {
...
And also XDDFChartData.getSeries() is deprecated. If you need one series do using XDDFChartData.getSeries(index)
In your case:
...
//XDDFChartData.Series series = data.getSeries().get(index);
XDDFChartData.Series series = data.getSeries(index);
...

Setting the color of an Excel sheet scatter chart marker icon with Apache POI

The scatter chart example included with Apache POI shows how to set the color of a line (that connects markers in a series), but I cannot figure out how to set the color of a marker for a series. I see that I can change the marker icon (with setMarkerStyle (javadoc), but that does not appear to have editable color properties).
From a previous SO question I suspect that it will be necessary to disable the vary colors configuration, but I still do not know how to set the colors after that step (if the following line is even necessary).
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0)
.addNewVaryColors().setVal(false);
How can I specify the marker icon colors in the example below?
public class ScatterChart {
public static void main(String[] args) throws IOException {
try (XSSFWorkbook wb = new XSSFWorkbook()) {
XSSFSheet sheet = wb.createSheet("Sheet 1");
final int NUM_OF_ROWS = 3;
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);
cell.setCellValue(colIndex * (rowIndex + 1.0));
}
}
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 10, 15);
XSSFChart chart = drawing.createChart(anchor);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.TOP_RIGHT);
XDDFValueAxis bottomAxis = chart.createValueAxis(AxisPosition.BOTTOM);
bottomAxis.setTitle("x"); // https://stackoverflow.com/questions/32010765
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
leftAxis.setTitle("f(x)");
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
XDDFDataSource<Double> xs = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(0, 0, 0, NUM_OF_COLUMNS - 1));
XDDFNumericalDataSource<Double> ys1 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, 0, NUM_OF_COLUMNS - 1));
XDDFNumericalDataSource<Double> ys2 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(2, 2, 0, NUM_OF_COLUMNS - 1));
XDDFScatterChartData data = (XDDFScatterChartData) chart.createData(ChartTypes.SCATTER, bottomAxis, leftAxis);
XDDFScatterChartData.Series series1 = (XDDFScatterChartData.Series) data.addSeries(xs, ys1);
series1.setTitle("2x", null); // https://stackoverflow.com/questions/21855842
series1.setSmooth(false); // https://stackoverflow.com/questions/39636138
XDDFScatterChartData.Series series2 = (XDDFScatterChartData.Series) data.addSeries(xs, ys2);
series2.setTitle("3x", null);
chart.plot(data);
solidLineSeries(data, 0, PresetColor.CHARTREUSE);
solidLineSeries(data, 1, PresetColor.TURQUOISE);
// Write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("ooxml-scatter-chart.xlsx")) {
wb.write(fileOut);
}
}
}
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);
}
}

The previous question you linked is from May 2018 and is about the pure XSSFChart stuff from apache poi upto version 3.17. This is outdated since apache poi 4.0.0 introduced the new XDDF stuff.
Nevertheless setting the marker color is not supported until now using only the high level XDDF classes. The marker has shape properties having fill properties of the same kind as the series itself. So we can use XDDFSolidFillProperties and XDDFShapeProperties as for the line settings. But to get the marker, we need using the low level underlying ooxml-schemas-1.4 beans.
Example:
...
series2.setMarkerStyle(MarkerStyle.DIAMOND);
series2.setMarkerSize((short)15);
XDDFSolidFillProperties fillMarker = new XDDFSolidFillProperties(XDDFColor.from(new byte[]{(byte)0xFF, (byte)0xFF, 0x00}));
XDDFShapeProperties propertiesMarker = new XDDFShapeProperties();
propertiesMarker.setFillProperties(fillMarker);
chart.getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(1).getMarker()
.addNewSpPr().set(propertiesMarker.getXmlObject());
...

ScatterChart using LineMarker as ScatterStyle instead of only Marker

After building a XSSFScatterChartData and I filling it using the method XSSFChart.plot(ChartData data, ChartAxis... chartAxis), the plot contains markers but linked by a line..
I think the problem comes from the method XSSFScatterChartData.addStyle which sets a STScatterStyle.LINE_MARKER by default.
Here is a copy of the method I use to generate the chart:
private void setTrainingTimeGraph(Sheet trainingTimeSheet, Sheet resultsSheet) {
Drawing drawing = trainingTimeSheet.createDrawingPatriarch();
ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 5, 5, 20, 30);
XSSFChart chart = (XSSFChart) drawing.createChart(anchor);
ChartLegend legend = chart.getOrCreateLegend();
legend.setPosition(LegendPosition.TOP_RIGHT);
chart.setTitleText("Training time over Fscore");
XSSFScatterChartData data = chart.getChartDataFactory().createScatterChartData();
ValueAxis bottomAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.BOTTOM);
ValueAxis leftAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.LEFT);
setValueAxisTitle((XSSFChart) chart,0,"Fscore");
setValueAxisTitle((XSSFChart) chart,1, "Training Time");
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
bottomAxis.setCrosses(AxisCrosses.AUTO_ZERO);
ChartDataSource<Number> xs = DataSources.fromNumericCellRange(resultsSheet, new CellRangeAddress(16, 29, 10, 10));
ChartDataSource<Number> ys = DataSources.fromNumericCellRange(resultsSheet, new CellRangeAddress(16, 29, 18, 18));
data.addSerie(xs, ys);
chart.plot(data,bottomAxis, leftAxis);
}
UPDATE
So adding #AxelRichter code to set to no fill in my scatter chart data serie:
...
data.addSerie(xs, ys);
chart.plot(data,bottomAxis, leftAxis);
//set line properties of first scatter chart data serie to no fill:
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.addNewSpPr().addNewLn().addNewNoFill();
I manged to get rid of the lines linking the Markers.. Finally!
But the second part wasn't what I was looking for. Let me explain it a little bit better:
When I pass hover each point in my scatterPlot there is some text which pops up ("label/x_value", x_value,y_value). The value in the legend is the same as its "label/x_value". I would like to set for each data point and for each value in legend its "label/x_value".
Thanks in advance!

Excel scatter charts will always have line between the markers too. If you don't wants to see this line it's fill color must be set to no fill.
References:
CTScatterSer -> CTShapeProperties -> CTLineProperties -> CTLineProperties.addNewNoFill
And for having data labels the series needs a CTDLbl setting.
Complete example:
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.ss.util.CellRangeAddress;
public class CreateExcelScatterChart {
public static void main(String[] args) throws Exception {
Workbook wb = new XSSFWorkbook();
Sheet sheet = wb.createSheet("chart");
final int NUM_OF_ROWS = 2;
final int NUM_OF_COLUMNS = 20;
Row row;
Cell cell;
for (int rowIndex = 0; rowIndex < 1; rowIndex++) {
row = sheet.createRow((short) rowIndex);
for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) {
cell = row.createCell((short) colIndex);
cell.setCellValue(4*colIndex * (rowIndex + 1));
}
}
for (int rowIndex = 1; rowIndex < NUM_OF_ROWS; rowIndex++) {
row = sheet.createRow((short) rowIndex);
for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) {
cell = row.createCell((short) colIndex);
cell.setCellValue(Math.sin(Math.PI*colIndex/10*2));
}
}
Drawing<?> drawing = sheet.createDrawingPatriarch();
ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 3, 13, 20);
Chart chart = drawing.createChart(anchor);
ChartLegend legend = chart.getOrCreateLegend();
legend.setPosition(LegendPosition.TOP_RIGHT);
ScatterChartData data = chart.getChartDataFactory().createScatterChartData();
ValueAxis bottomAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.BOTTOM);
ValueAxis leftAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.LEFT);
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
bottomAxis.setCrosses(AxisCrosses.AUTO_ZERO);
ChartDataSource<Number> xs = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(0, 0, 0, NUM_OF_COLUMNS - 1));
ChartDataSource<Number> ys1 = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, 0, NUM_OF_COLUMNS - 1));
ScatterChartSeries chartSerie = data.addSerie(xs, ys1);
chartSerie.setTitle("My Title");
chart.plot(data, bottomAxis, leftAxis);
//set line properties of first scatter chart data serie to no fill:
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.addNewSpPr().addNewLn().addNewNoFill();
//set data labels for first scatter chart data serie
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.addNewDLbls()
.addNewNumFmt().setFormatCode("0.0");
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.getDLbls().getNumFmt()
.setSourceLinked(false);
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.getDLbls()
.addNewShowLegendKey().setVal(false);
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.getDLbls()
.addNewShowCatName().setVal(false);
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.getDLbls()
.addNewShowSerName().setVal(false);
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.getDLbls()
.addNewShowPercent().setVal(false);
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.getDLbls()
.addNewShowBubbleSize().setVal(false);
((XSSFChart)chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray(0)
.getDLbls()
.addNewShowVal().setVal(true);
wb.write(new FileOutputStream("CreateExcelScatterChart.xlsx"));
wb.close();
}
}
This code needs the full jar of all of the schemas ooxml-schemas-1.3.jar as mentioned in FAQ-N10025.
This code works using the current last stable release apache poi version 3.17. Note: The Chart code of apache poi is highly in development now. So the code may not work in further releases.

So basing myself on the anwser of #Axel Richter.
Here is the to code used as basis:
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.ss.util.CellRangeAddress;
public class CreateExcelScatterChart {
public static void main(String[] args) throws Exception {
Workbook wb = new XSSFWorkbook();
Sheet sheet = wb.createSheet("chart");
final int NUM_OF_ROWS = 2;
final int NUM_OF_COLUMNS = 20;
Row row;
Cell cell;
//x values
for (int rowIndex = 0; rowIndex < 1; rowIndex++) {
row = sheet.createRow((short) rowIndex);
for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) {
cell = row.createCell((short) colIndex);
cell.setCellValue(4*colIndex * (rowIndex + 1));
}
}
// y values
for (int rowIndex = 1; rowIndex < NUM_OF_ROWS; rowIndex++) {
row = sheet.createRow((short) rowIndex);
for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) {
cell = row.createCell((short) colIndex);
cell.setCellValue(Math.sin(Math.PI*colIndex/10*2));
}
}
Drawing<?> drawing = sheet.createDrawingPatriarch();
ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 3, 13, 20);
Chart chart = drawing.createChart(anchor);
ChartLegend legend = chart.getOrCreateLegend();
legend.setPosition(LegendPosition.TOP_RIGHT);
ScatterChartData data = chart.getChartDataFactory().createScatterChartData();
ValueAxis bottomAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.BOTTOM);
ValueAxis leftAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.LEFT);
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
bottomAxis.setCrosses(AxisCrosses.AUTO_ZERO);
for (int i = 0; i < NUM_OF_COLUMNS; i++) {
ChartDataSource<Number> xs = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(0, 0, i, i));
ChartDataSource<Number> ys = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, i, i));
ScatterChartSeries chartSerie = data.addSerie(xs, ys);
chartSerie.setTitle("My Title " + i);
}
chart.plot(data, bottomAxis, leftAxis);
//set line properties of first scatter chart data serie to no fill:
CTScatterSer[] scatterChartSeries = ((XSSFChart) chart).getCTChart().getPlotArea().getScatterChartArray(0).getSerArray();
for (int i = 0; i < scatterChartSeries.length; i++) {
scatterChartSeries[i].addNewSpPr().addNewLn().addNewNoFill();
}
wb.write(new FileOutputStream("CreateExcelScatterChart.xlsx"));
wb.close();
}
}
It will generate 20 series each one with a title when passing hover and the same title in the legend. There will be as no lines between each marker. So basically it does what I was looking for.
Thank you for your answers.
Ps: In case that you want to use some labels on each marker follow the //set data labels for first scatter chart data serie on #Richet answer

Create Bar Chart in Excel with Apache POI

I'm trying to create a Bar Chart in an XLSX Spreadsheet using Apache POI, but Excel keeps saying that there's a problem with the content and deleting the chart when I try to open the file. Here's the full code of what I'm trying to do:
public static void createBarChart() {
Workbook wb = new XSSFWorkbook();
Sheet sheet = wb.createSheet("Sheet2");
Row row;
Cell cell;
row = sheet.createRow(0);
row.createCell(0);
row.createCell(1).setCellValue("HEADER 1");
row.createCell(2).setCellValue("HEADER 2");
row.createCell(3).setCellValue("HEADER 3");
for (int r = 1; r < 5; r++) {
row = sheet.createRow(r);
cell = row.createCell(0);
cell.setCellValue("Serie " + r);
cell = row.createCell(1);
cell.setCellValue(123);
cell = row.createCell(2);
cell.setCellValue(456);
cell = row.createCell(3);
cell.setCellValue(789);
}
Drawing drawing = sheet.createDrawingPatriarch();
ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 5, 20);
Chart chart = drawing.createChart(anchor);
CTChart ctChart = ((XSSFChart) chart).getCTChart();
ctChart.addNewTitle();
CTPlotArea ctPlotArea = ctChart.getPlotArea();
CTBarChart ctBarChart = ctPlotArea.addNewBarChart();
ctBarChart.addNewBarDir().setVal(STBarDir.COL);
ctBarChart.addNewGrouping().setVal(STBarGrouping.CLUSTERED);
ctBarChart.addNewVaryColors().setVal(false);
// First series
CTBarSer ctBarSer = ctBarChart.addNewSer();
ctBarSer.addNewIdx().setVal(0);
ctBarSer.addNewOrder().setVal(0);
// [01] Title
CTSerTx ctSerTx = ctBarSer.addNewTx();
CTStrRef ctSerTxStrRef = ctSerTx.addNewStrRef();
ctSerTxStrRef.setF("Sheet2!$A$2");
CTStrData strCache = ctSerTxStrRef.addNewStrCache();
strCache.addNewPtCount().setVal(1);
CTStrVal newPt = strCache.addNewPt();
newPt.setV("Serie 1");
newPt.setIdx(0);
// [01] SpPr
CTShapeProperties spPr = ctBarSer.addNewSpPr();
CTSolidColorFillProperties solidFill = spPr.addNewSolidFill();
solidFill.addNewSchemeClr().setVal(STSchemeColorValImpl.ACCENT_1);
spPr.addNewLn().addNewNoFill();
spPr.addNewEffectLst();
// [01] Invert if negative
ctBarSer.addNewInvertIfNegative().setVal(false);
// [01] Series titles
CTAxDataSource newCat = ctBarSer.addNewCat();
CTStrRef addNewStrRef = newCat.addNewStrRef();
addNewStrRef.setF("Sheet2!$B$1:$D$1");
CTStrData addNewStrCache = addNewStrRef.addNewStrCache();
addNewStrCache.addNewPtCount().setVal(3);
CTStrVal pt1 = addNewStrCache.addNewPt();
pt1.setIdx(0);
pt1.setV(sheet.getRow(0).getCell(1).getStringCellValue());
CTStrVal pt2 = addNewStrCache.addNewPt();
pt2.setIdx(1);
pt2.setV(sheet.getRow(0).getCell(2).getStringCellValue());
CTStrVal pt3 = addNewStrCache.addNewPt();
pt3.setIdx(2);
pt3.setV(sheet.getRow(0).getCell(3).getStringCellValue());
// [01] Series values
CTNumDataSource newVal = ctBarSer.addNewVal();
CTNumRef numRef = newVal.addNewNumRef();
numRef.setF("Sheet2!$B$2:$D$2");
CTNumData numCache = numRef.addNewNumCache();
numCache.addNewPtCount().setVal(3);
CTNumVal numpt1 = numCache.addNewPt();
numpt1.setIdx(0);
numpt1.setV(String.valueOf(sheet.getRow(1).getCell(1).getNumericCellValue()));
CTNumVal numpt2 = numCache.addNewPt();
numpt2.setIdx(1);
numpt2.setV(String.valueOf(sheet.getRow(1).getCell(2).getNumericCellValue()));
CTNumVal numpt3 = numCache.addNewPt();
numpt3.setIdx(2);
numpt3.setV(String.valueOf(sheet.getRow(1).getCell(3).getNumericCellValue()));
// dLbls
CTDLbls dLbls = ctBarChart.addNewDLbls();
dLbls.addNewShowBubbleSize().setVal(false);
dLbls.addNewShowLegendKey().setVal(false);
dLbls.addNewShowCatName().setVal(false);
dLbls.addNewShowSerName().setVal(false);
dLbls.addNewShowPercent().setVal(false);
dLbls.addNewShowVal().setVal(false);
FileOutputStream fileOut = new FileOutputStream("barchart.xlsx");
wb.write(fileOut);
wb.close();
fileOut.close();
}
Can anyone help me find (and, well, solve) the issue? Thanks in advance!

Phew, difficult birth ;-). For users without knowledge of the background Apache POI supports only ScatterCharts and LineCharts why?. There is described how to proceed in principle.
As I said. Take the simplest possible bar chart for testing first. That is one series with two values. Then you would have seen that you have completely forgotten the axes in your code. A pie chart has no axes. Thats why there they are not necessary. But a bar chart will not work without axes.
Instead you can unscrupulously forget all things what is named "cache".
Whether other things are needed is determined by try and error. Also one could read the Office OpenXML recommendation. Probably the missing of all elements having minOccurs <> "0"` leads to deleting the Drawing while opening the Workbook.
Simple Example for a bar chart:
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.*;
import org.apache.poi.ss.usermodel.charts.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTPlotArea;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTBarChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTBoolean;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTBarSer;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTAxDataSource;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTNumDataSource;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTNumRef;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTStrRef;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTSerTx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTCatAx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTValAx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTScaling;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTLegend;
import org.openxmlformats.schemas.drawingml.x2006.chart.STAxPos;
import org.openxmlformats.schemas.drawingml.x2006.chart.STBarDir;
import org.openxmlformats.schemas.drawingml.x2006.chart.STOrientation;
import org.openxmlformats.schemas.drawingml.x2006.chart.STLegendPos;
import org.openxmlformats.schemas.drawingml.x2006.chart.STTickLblPos;
public class BarChart {
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("HEADER 1");
row.createCell(2).setCellValue("HEADER 2");
row.createCell(3).setCellValue("HEADER 3");
for (int r = 1; r < 5; r++) {
row = sheet.createRow(r);
cell = row.createCell(0);
cell.setCellValue("Serie " + r);
cell = row.createCell(1);
cell.setCellValue(new java.util.Random().nextDouble());
cell = row.createCell(2);
cell.setCellValue(new java.util.Random().nextDouble());
cell = row.createCell(3);
cell.setCellValue(new java.util.Random().nextDouble());
}
Drawing drawing = sheet.createDrawingPatriarch();
ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 8, 20);
Chart chart = drawing.createChart(anchor);
CTChart ctChart = ((XSSFChart)chart).getCTChart();
CTPlotArea ctPlotArea = ctChart.getPlotArea();
CTBarChart ctBarChart = ctPlotArea.addNewBarChart();
CTBoolean ctBoolean = ctBarChart.addNewVaryColors();
ctBoolean.setVal(true);
ctBarChart.addNewBarDir().setVal(STBarDir.COL);
for (int r = 2; r < 6; r++) {
CTBarSer ctBarSer = ctBarChart.addNewSer();
CTSerTx ctSerTx = ctBarSer.addNewTx();
CTStrRef ctStrRef = ctSerTx.addNewStrRef();
ctStrRef.setF("Sheet1!$A$" + r);
ctBarSer.addNewIdx().setVal(r-2);
CTAxDataSource cttAxDataSource = ctBarSer.addNewCat();
ctStrRef = cttAxDataSource.addNewStrRef();
ctStrRef.setF("Sheet1!$B$1:$D$1");
CTNumDataSource ctNumDataSource = ctBarSer.addNewVal();
CTNumRef ctNumRef = ctNumDataSource.addNewNumRef();
ctNumRef.setF("Sheet1!$B$" + r + ":$D$" + r);
//at least the border lines in Libreoffice Calc ;-)
ctBarSer.addNewSpPr().addNewLn().addNewSolidFill().addNewSrgbClr().setVal(new byte[] {0,0,0});
}
//telling the BarChart that it has axes and giving them Ids
ctBarChart.addNewAxId().setVal(123456);
ctBarChart.addNewAxId().setVal(123457);
//cat axis
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
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.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//legend
CTLegend ctLegend = ctChart.addNewLegend();
ctLegend.addNewLegendPos().setVal(STLegendPos.B);
ctLegend.addNewOverlay().setVal(false);
System.out.println(ctChart);
FileOutputStream fileOut = new FileOutputStream("BarChart.xlsx");
wb.write(fileOut);
fileOut.close();
}
}
This example needs the full jar of all of the schemas ooxml-schemas-1.3.jar as mentioned in the FAQ-N10025.
Above code has worked until apache poi 3.17.
Following code works using apache poi 4.1.0. It needs the full jar of all of the schemas ooxml-schemas-1.4.jar.
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.*;
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.CTChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTPlotArea;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTBarChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTBoolean;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTBarSer;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTAxDataSource;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTNumDataSource;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTNumRef;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTStrRef;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTSerTx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTCatAx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTValAx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTScaling;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTLegend;
import org.openxmlformats.schemas.drawingml.x2006.chart.STAxPos;
import org.openxmlformats.schemas.drawingml.x2006.chart.STBarDir;
import org.openxmlformats.schemas.drawingml.x2006.chart.STOrientation;
import org.openxmlformats.schemas.drawingml.x2006.chart.STLegendPos;
import org.openxmlformats.schemas.drawingml.x2006.chart.STTickLblPos;
public class BarChart {
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("HEADER 1");
row.createCell(2).setCellValue("HEADER 2");
row.createCell(3).setCellValue("HEADER 3");
for (int r = 1; r < 5; r++) {
row = sheet.createRow(r);
cell = row.createCell(0);
cell.setCellValue("Serie " + r);
cell = row.createCell(1);
cell.setCellValue(new java.util.Random().nextDouble());
cell = row.createCell(2);
cell.setCellValue(new java.util.Random().nextDouble());
cell = row.createCell(3);
cell.setCellValue(new java.util.Random().nextDouble());
}
XSSFDrawing drawing = (XSSFDrawing)sheet.createDrawingPatriarch();
ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 8, 20);
XSSFChart chart = drawing.createChart(anchor);
CTChart ctChart = ((XSSFChart)chart).getCTChart();
CTPlotArea ctPlotArea = ctChart.getPlotArea();
CTBarChart ctBarChart = ctPlotArea.addNewBarChart();
CTBoolean ctBoolean = ctBarChart.addNewVaryColors();
ctBoolean.setVal(true);
ctBarChart.addNewBarDir().setVal(STBarDir.COL);
for (int r = 2; r < 6; r++) {
CTBarSer ctBarSer = ctBarChart.addNewSer();
CTSerTx ctSerTx = ctBarSer.addNewTx();
CTStrRef ctStrRef = ctSerTx.addNewStrRef();
ctStrRef.setF("Sheet1!$A$" + r);
ctBarSer.addNewIdx().setVal(r-2);
CTAxDataSource cttAxDataSource = ctBarSer.addNewCat();
ctStrRef = cttAxDataSource.addNewStrRef();
ctStrRef.setF("Sheet1!$B$1:$D$1");
CTNumDataSource ctNumDataSource = ctBarSer.addNewVal();
CTNumRef ctNumRef = ctNumDataSource.addNewNumRef();
ctNumRef.setF("Sheet1!$B$" + r + ":$D$" + r);
//at least the border lines in Libreoffice Calc ;-)
ctBarSer.addNewSpPr().addNewLn().addNewSolidFill().addNewSrgbClr().setVal(new byte[] {0,0,0});
}
//telling the BarChart that it has axes and giving them Ids
ctBarChart.addNewAxId().setVal(123456);
ctBarChart.addNewAxId().setVal(123457);
//cat axis
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
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.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//legend
CTLegend ctLegend = ctChart.addNewLegend();
ctLegend.addNewLegendPos().setVal(STLegendPos.B);
ctLegend.addNewOverlay().setVal(false);
System.out.println(ctChart);
FileOutputStream fileOut = new FileOutputStream("BarChart.xlsx");
wb.write(fileOut);
fileOut.close();
}
}

with Apache-Poi 4.0 we can achive it with minimal code. Below example is available with apache poi example.
Now createChart Method is available with all format(Excel/DOCX/PPTX).
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.PresetColor;
import org.apache.poi.xddf.usermodel.XDDFColor;
import org.apache.poi.xddf.usermodel.XDDFShapeProperties;
import org.apache.poi.xddf.usermodel.XDDFSolidFillProperties;
import org.apache.poi.xddf.usermodel.chart.AxisCrosses;
import org.apache.poi.xddf.usermodel.chart.AxisPosition;
import org.apache.poi.xddf.usermodel.chart.BarDirection;
import org.apache.poi.xddf.usermodel.chart.ChartTypes;
import org.apache.poi.xddf.usermodel.chart.LegendPosition;
import org.apache.poi.xddf.usermodel.chart.XDDFBarChartData;
import org.apache.poi.xddf.usermodel.chart.XDDFCategoryAxis;
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.XDDFValueAxis;
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 BarChart {
public static void main(String[] args) throws IOException {
try (XSSFWorkbook wb = new XSSFWorkbook()) {
XSSFSheet sheet = wb.createSheet("barchart");
final int NUM_OF_ROWS = 3;
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);
cell.setCellValue(colIndex * (rowIndex + 1.0));
}
}
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 10, 15);
XSSFChart chart = drawing.createChart(anchor);
chart.setTitleText("BarChart");
chart.setTitleOverlay(false);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.TOP_RIGHT);
// Use a category axis for the bottom axis.
XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
bottomAxis.setTitle("x");
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
leftAxis.setTitle("f(x)");
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
XDDFDataSource<Double> xs = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(0, 0, 0, NUM_OF_COLUMNS - 1));
XDDFNumericalDataSource<Double> ys1 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, 0, NUM_OF_COLUMNS - 1));
XDDFNumericalDataSource<Double> ys2 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(2, 2, 0, NUM_OF_COLUMNS - 1));
XDDFChartData data = chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);
XDDFChartData.Series series1 = data.addSeries(xs, ys1);
series1.setTitle("2x", null);
XDDFChartData.Series series2 = data.addSeries(xs, ys2);
series2.setTitle("3x", null);
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.COL);
// looking for "Stacked Bar Chart"? uncomment the following line
// bar.setBarGrouping(BarGrouping.STACKED);
solidFillSeries(data, 0, PresetColor.CHARTREUSE);
solidFillSeries(data, 1, PresetColor.TURQUOISE);
// Write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("ooxml-bar-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);
}
}

This is the code for creating the bar chart (actually creating the column chart) in Excel using XSSF for Excel 2007 and above using the NPOI 2.4.1 nuget package.
private XSSFWorkbook createBarchart()
{
XSSFWorkbook workbook = new XSSFWorkbook();
XSSFSheet sheet = (XSSFSheet)workbook.CreateSheet("WorkForceAnalytics");
XSSFCellStyle styleHeader = (XSSFCellStyle)workbook.CreateCellStyle();
styleHeader.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
styleHeader.SetFont(getNewXSSFFont(workbook, styleHeader));
XSSFCellStyle style = (XSSFCellStyle)workbook.CreateCellStyle();
style.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Left;
XSSFRow row1 = (XSSFRow)sheet.CreateRow(0);
row1.CreateCell(0).SetCellValue("");
List<string> lstdatase = new List<string>(4);
lstdatase.Add("A1");
lstdatase.Add("B1");
lstdatase.Add("C1");
lstdatase.Add("D1");
lstdatase.Add("E1");
for (int i = 1; i < 5; i++)
{
row1.CreateCell(i).SetCellValue(lstdatase[i - 1].ToString());
row1.GetCell(i).CellStyle = styleHeader;
}
int rowvalue = 1;
List<string> lstdata = new List<string>(8);
lstdata.Add("A");
lstdata.Add("B");
lstdata.Add("C");
lstdata.Add("D");
lstdata.Add("E");
lstdata.Add("F");
lstdata.Add("G");
lstdata.Add("H");
int d = 10;
XSSFDrawing drawing = (XSSFDrawing)sheet.CreateDrawingPatriarch();
XSSFClientAnchor anchor = (XSSFClientAnchor)drawing.CreateAnchor(0, 0, 0, 0, 6, 1, 15, 18);
IChart chart = drawing.CreateChart(anchor);
IChartLegend legend = chart.GetOrCreateLegend();
legend.Position = (LegendPosition.TopRight);
IBarChartData<string, double> data = chart.ChartDataFactory.CreateBarChartData<string, double>();
IChartAxis bottomAxis = chart.ChartAxisFactory.CreateCategoryAxis(AxisPosition.Bottom);
IValueAxis leftAxis = chart.ChartAxisFactory.CreateValueAxis(AxisPosition.Left);
leftAxis.Crosses = AxisCrosses.AutoZero;
leftAxis.SetCrossBetween(AxisCrossBetween.Between);
IChartDataSource<string> xs = DataSources.FromStringCellRange(sheet, new NPOI.SS.Util.CellRangeAddress(0, 0, 1, 5-1));
for (int ii = 0; ii < 8; ii++)
{
XSSFRow rownew = (XSSFRow)sheet.CreateRow(rowvalue);
rownew.CreateCell(0).SetCellValue(lstdata[ii].ToString());
for (int i = 1; i < 5; i++)
{
rownew.CreateCell(i).SetCellValue(d);
d++;
rownew.GetCell(i).CellStyle = style;
}
rowvalue++;
IChartDataSource<double> ys = DataSources.FromNumericCellRange(sheet, new NPOI.SS.Util.CellRangeAddress(ii + 1, ii + 1, 1, 5 - 1));
data.AddSeries(xs, ys).SetTitle(lstdata[ii].ToString());
}
chart.Plot(data, bottomAxis, leftAxis);
sheet.ForceFormulaRecalculation = true;
string fileName = "WorkforceAnalyticsReport.xlsx";
using (var exportData = new MemoryStream())
{
Response.Clear();
workbook.Write(exportData);
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("Content-Disposition", string.Format("attachment;filename={0}", fileName));
Response.BinaryWrite(exportData.ToArray());
Response.End();
}
return workbook;
}