public void setTextOrientation(final TextOrientation ORIENTATION) {
        if (null == textOrientation) {
            _textOrientation = ORIENTATION;
            redraw();
        } else {
            textOrientation.set(ORIENTATION);
        }
    }
Defines the orientation the text will be drawn in the segments
@param ORIENTATION
src/main/java/eu/hansolo/tilesfx/chart/SunburstChart.java