Drawing pie chart with PDFbox

Question

I'm trying to draw Pie chart with PDFbox, but there are white lines between the slices, could anyone help me with this? is there an option for this?

Attached the code for drawing the arc that I'm using:

while (start < stop) {
    List<Float> smallArc = PdfUtils.createSmallArc(a, b, radius, start, start + 
        2.0944 > stop ? stop : start + 2.0944);
    contentStream.saveGraphicsState();
    contentStream.setNonStrokingColor(components[0], components[1], 
        components[2]);
    contentStream.moveTo(smallArc.get(0), smallArc.get(1));
    contentStream.curveTo(smallArc.get(2), smallArc.get(3), smallArc.get(4), 
        smallArc.get(5), smallArc.get(6), smallArc.get(7));
    contentStream.fill();
    contentStream.restoreGraphicsState();
    start += 2.0944;
}


public static List<Float> createSmallArc(float x, float y, double r, double a1, double a2) {
    double a = (a2 - a1) / 2;
    double x4 = r * Math.cos(a);
    double y4 = r * Math.sin(a);
    double x1 = x4;
    double y1 = -y4;
    double q1 = x1 * x1 + y1 * y1;

    double q2 = q1 + x1 * x4 + y1 * y4;
    double k2 = 4 / 3d * (Math.sqrt(2 * q1 * q2) - q2) / (x1 * y4 - y1 * x4);
    double x2 = x1 - k2 * y1;
    double y2 = y1 + k2 * x1;
    double x3 = x2;
    double y3 = -y2;

    double ar = a + a1;
    double cos_ar = Math.cos(ar);
    double sin_ar = Math.sin(ar);

    List<Float> list = new ArrayList<Float>();
    list.add((float) (r * Math.cos(a1)) + x);
    list.add((float) -(r * Math.sin(a1)) + y);
    list.add((float) (x2 * cos_ar - y2 * sin_ar) + x);
    list.add((float) -(x2 * sin_ar + y2 * cos_ar) + y);
    list.add((float) (x3 * cos_ar - y3 * sin_ar) + x);
    list.add((float) -(x3 * sin_ar + y3 * cos_ar) + y);
    list.add((float) (r * Math.cos(a2)) + x);
    list.add((float) -(r * Math.sin(a2)) + y);
    return list;
}

Attached image of the result:

Thanks

Answer 1

Instead of using fill(), use the fillAndStroke() method and call setStrokingColor() with the same parameters that you used for setNonStrokingColor().