显示效果如下图:

点击不同Mark可以实现其显示或隐藏.

一、数据初始化

QScatterSeries可以通过append方法添加数据,append(x,y).

QScatterSeries的默认形状只有两个 MarkerShapeCircle:圆形, MarkerShapeRectangle:矩形.

默认添加三个QScatterSeries.

 
void Widget::initData()
{
    QTime randtime;
    randtime = QTime::currentTime();
    qsrand(randtime.msec() + randtime.second() * 1000);
    for (int i = 0; i < 3; i++) {
        QScatterSeries *mptrScatterSeries = new QScatterSeries();
        mptrScatterSeries->setName("test" + QString::number(i));
        for (int j = 0; j < 20; j++) {
            int x = qrand() % 100;
            int y = qrand() % 100;
            mptrScatterSeries->append(x, y);
        }
        QScatterSeries::MarkerShape mar