QCchart坐标轴添加信息的方法如下:
运用QCategoryAxis类重新编辑坐标轴。
1 QCategoryAxis *axisX=new QCategoryAxis; 2
3 axisX->setMin(0); 4 axisX->setMax(60); 5 axisX->setStartValue(0); 6 //append要按照大小顺序依次添加
7 axisX->append("0",0); 8 axisX->append("10",10); 9 axisX->append("20",20); 10 axisX->append("30",30); 11 axisX->append("预测1",35); 12 axisX->append("预测2",40); 13 axisX->append("预测3",45); 14 axisX->append("预测4",50); 15 axisX->append("60",60); 16 //下边这一句代码的作用是让刻度线和刻度的label对齐
17 axisX->setLabelsPosition(QCategoryAxis::AxisLabelsPositionOnValue); 18 chart->setAxisX(axisX,series);
实现效果如下图