I am creating an Excel file with line chart. I've created chart and filled it with data but I cannot create points on my chart. Does anyone know, is there a way I could generate these points(triangles, squares, circles etc.) in a chart using apache poi?
This is my code for generating current char:
public static void main(String[] args) throws Exception { Workbook wb = new XSSFWorkbook(); Sheet dataSheet = wb.createSheet("linechart"); final int NUM_OF_ROWS = 10; final int NUM_OF_COLUMNS = 4; Row row; Cell cell; for (int rowIndex = 0; rowIndex < NUM_OF_ROWS; rowIndex++) { row = dataSheet.createRow((short) rowIndex); for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) { cell = row.createCell((short) colIndex); cell.setCellValue(rowIndex * ((colIndex + 1) + ((int) (Math.random() * 10)))); } } Drawing drawing = dataSheet.createDrawingPatriarch(); ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, NUM_OF_COLUMNS + 2, 3, NUM_OF_COLUMNS + 15, 20); Chart chart = drawing.createChart(anchor); ChartLegend legend = chart.getOrCreateLegend(); legend.setPosition(LegendPosition.RIGHT); LineChartData data = chart.getChartDataFactory().createLineChartData(); ChartAxis bottomAxis = chart.getChartAxisFactory().createCategoryAxis(AxisPosition.BOTTOM); ValueAxis leftAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.LEFT); leftAxis.setCrosses(AxisCrosses.AUTO_ZERO); ChartDataSource<Number> xs = DataSources.fromNumericCellRange(dataSheet, new CellRangeAddress(0, NUM_OF_ROWS - 1, 0, 0)); ChartDataSource<Number> ys1 = DataSources.fromNumericCellRange(dataSheet, new CellRangeAddress(0, NUM_OF_ROWS - 1, 1, 1)); ChartDataSource<Number> ys2 = DataSources.fromNumericCellRange(dataSheet, new CellRangeAddress(0, NUM_OF_ROWS - 1, 2, 2)); ChartDataSource<Number> ys3 = DataSources.fromNumericCellRange(dataSheet, new CellRangeAddress(0, NUM_OF_ROWS - 1, 3, 3)); LineChartSeries series1 = data.addSeries(xs, ys1); series1.setTitle("one"); LineChartSeries series2 = data.addSeries(xs, ys2); series2.setTitle("two"); LineChartSeries series3 = data.addSeries(xs, ys3); series3.setTitle("three"); chart.plot(data, bottomAxis, leftAxis); XSSFChart xssfChart = (XSSFChart) chart; CTPlotArea plotArea = xssfChart.getCTChart().getPlotArea(); plotArea.getLineChartArray()[0].getSmooth(); CTBoolean ctBool = CTBoolean.Factory.newInstance(); ctBool.setVal(false); plotArea.getLineChartArray()[0].setSmooth(ctBool); for (CTLineSer ser : plotArea.getLineChartArray()[0].getSerArray()) { ser.setSmooth(ctBool); } FileOutputStream fileOut = new FileOutputStream("chart.xlsx"); wb.write(fileOut); fileOut.close(); }