Question

我使用apache poi在excel文件中创建了条形图。如何删除plotarea外的边界/边距？下图中的蓝色边框区域。

我通过编辑创建的excel文件添加了蓝色部分。在编辑之前，它是白色的。以下是创建此图表的功能代码：

    public void createBarChart(double[] values, boolean[] passed, String[] labels,
                           int Dx1, int Dy1, int Dx2, int Dy2,
                           int row1, int col1, int row2, int col2){
    Drawing drawing = sheet.createDrawingPatriarch();
    ClientAnchor anchor = drawing.createAnchor(Dx1, Dy1, Dx2, Dy2, col1, row1, col2, row2);
    Chart chart = drawing.createChart(anchor);


    CTChart ctChart = ((XSSFChart)chart).getCTChart();

    CTPlotArea ctPlotArea = ctChart.getPlotArea();
    CTBarChart ctBarChart = ctPlotArea.addNewBarChart();
    //CTBoolean ctBoolean = ctBarChart.addNewVaryColors();
    //ctBoolean.setVal(false);
    ctBarChart.addNewBarDir().setVal(STBarDir.COL);

    // Add the bars
    int length = values.length;
    for (int s = 0; s < length; s++) {
        CTBarSer ctBarSer = ctBarChart.addNewSer();
        CTSerTx ctSerTx = ctBarSer.addNewTx();
        ctSerTx.setV(labels[s]);
        ctBarSer.addNewIdx().setVal(s);

        CTNumDataSource ctNumDataSource = ctBarSer.addNewVal();
        CTNumData ctNumData = ctNumDataSource.addNewNumLit();
        ctNumData.addNewPtCount().setVal(1);
        CTNumVal ctNumVal = ctNumData.addNewPt();
        ctNumVal.setIdx(0);
        ctNumVal.setV("" + values[s]);


        //at least the border lines in Libreoffice Calc ;-)
        CTShapeProperties ctShapeProperties = ctBarSer.addNewSpPr();
        if(passed[s]) {
            // bar color, green: passed
            ctShapeProperties.addNewSolidFill().addNewSrgbClr().setVal(new byte[]{0, (byte)128, 0});
        }
        else {
            // bar color, red: failed
            ctShapeProperties.addNewSolidFill().addNewSrgbClr().setVal(new byte[]{(byte) 255, 0, 0});
        }
        //ctShapeProperties.addNewLn().addNewSolidFill().addNewSrgbClr().setVal(new byte[]{0, 0, 0}); // black
        ctShapeProperties.addNewLn().addNewSolidFill().addNewSrgbClr().setVal(new byte[]{(byte)255, (byte)255, (byte)255}); // white
    }


    //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(true);
    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(true);
    ctValAx.addNewAxPos().setVal(STAxPos.L);
    ctValAx.addNewCrossAx().setVal(123456); //id of the cat axis
    ctValAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);

    // Remove rounded corner
    if (((XSSFChart)chart).getCTChartSpace().getRoundedCorners() == null){
        ((XSSFChart)chart).getCTChartSpace().addNewRoundedCorners();
    }

    ((XSSFChart)chart).getCTChartSpace().getRoundedCorners().setVal(false);
    //chart area (chartspace) without border line
    ((XSSFChart)chart).getCTChartSpace().addNewSpPr().addNewLn().addNewNoFill();


}

Answer 1

首先，我怀疑您正在创建XSSFChart。

你是如何设置这个厚蓝色边框的？通常，默认情况下有一个带有圆角的薄蓝色边框。如何摆脱圆角已被回答：Changing the shape of chart generated by apache poi for excel sheet。

但是如果你想格式化边框，那么你需要知道CTChartSpace有CTShapeProperties。

所以：

...
        Drawing drawing = sheet.createDrawingPatriarch();
        ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 8, 20);

        Chart chart = drawing.createChart(anchor);

//chart area (chartspace) without border line
((XSSFChart)chart).getCTChartSpace().addNewSpPr().addNewLn().addNewNoFill();
...

可能会删除绘图区域周围的边框以及绘图区域和图表区域之间的间隙，然后：

...
        CTPlotArea ctPlotArea = ctChart.getPlotArea();
ctPlotArea.addNewSpPr().addNewLn().addNewNoFill();
org.openxmlformats.schemas.drawingml.x2006.chart.CTManualLayout ctManualLayout = ctPlotArea.getLayout().addNewManualLayout();
ctManualLayout.addNewX().setVal(0);
ctManualLayout.addNewY().setVal(0);
ctManualLayout.addNewW().setVal(1);
ctManualLayout.addNewH().setVal(1);
...

删除excel中apache poi条形图中的边框区域

1 个答案: