The QSplineSeries class presents data as spline charts. 更多...
| 頭: | #include <QSplineSeries> |
| 實例化: | SplineSeries |
| 繼承: | QLineSeries |
| QSplineSeries (QObject * parent = nullptr) | |
| virtual | ~QSplineSeries () |
| virtual QAbstractSeries::SeriesType | type () const override |
樣條綫係列存儲數據點和分段控製點需要通過 QPainterPath 來繪製樣條綫。會自動計算控製點,當數據改變時。算法計算點,以便可以繪製正常樣條綫。
以下代碼片段闡明如何創建基本樣條綫圖錶:
QSplineSeries* series = new QSplineSeries(); series->append(0, 6); series->append(2, 4); ... chart->addSeries(series);
構造子級空係列對象為 parent 。當係列對象被添加到 QChart 實例,所有權轉轉移。
[虛擬]
QSplineSeries::
~QSplineSeries
()
刪除樣條綫係列。
[override virtual]
QAbstractSeries::SeriesType
QSplineSeries::
type
() const
重實現: QLineSeries::type () const.