ScatterSeries QML Type
ScatterSeries 类型在散点图中显示数据。更多
Import Statement: | import QtGraphs |
In C++: | QScatterSeries |
Inherits: |
- 所有成员(包括继承成员)列表
- ScatterSeries 是Qt Graphs QML Types for 2D 的一部分。
属性
- pointDelegate : Component
详细说明
散点数据以点集合的形式显示在图表上。为每个点指定两个值,以确定其在横轴和纵轴上的位置。
您可以通过在GraphsView 中创建 ScatterSeries 来表示散点数据。通过创建 XYPoints 作为 ScatterSeries 的子代,定义每个点的 x 和 y 值,可将数据添加到图形中。
GraphsView { anchors.fill: parent axisX: ValueAxis { max: 3 } axisY: ValueAxis { max: 3 } ScatterSeries { color: "#00ff00" XYPoint { x: 0.5; y: 0.5 } XYPoint { x: 1; y: 1 } XYPoint { x: 2; y: 2 } XYPoint { x: 2.5; y: 1.5 } } }
通过添加多个 ScatterSeries 作为GraphsView 的子代,可以创建多个散点图。在这种情况下,只有一个系列可以定义所使用的坐标轴,因为多个定义只能覆盖前面的定义。
GraphsView { anchors.fill: parent ScatterSeries { color: "#00ff00" axisX: ValueAxis { max: 3 } axisY: ValueAxis { max: 3 } XYPoint { x: 0.5; y: 0.5 } XYPoint { x: 1; y: 1 } XYPoint { x: 2; y: 2 } XYPoint { x: 2.5; y: 1.5 } } ScatterSeries { color: "#ff0000" XYPoint { x: 0.5; y: 3 } XYPoint { x: 1; y: 2 } XYPoint { x: 2; y: 2.5 } XYPoint { x: 2.5; y: 1 } } }
属性文档
pointDelegate : Component |
用给定的 QML 组件标记点。
pointDelegate: Image {
source: "images/happy_box.png"
}
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