QML 图表视图获取 Lineseries.onPointAdded 的 X、Y
QML chartview get X,Y of Lineseries.onPointAdded
如何获取在Lineseries
中添加的点的X和Y?
这段代码放在一个简单的ChartView
里面。
如果我有以下情况:
LineSeries {
id: data
name: "name"
axisX: axisX
axisY: axisY
onPointAdded: {
//retrieve x and y
}
}
onPointAdded
里面的注释应该用什么替换?
谢谢。
pointAdded
signal passes as a parameter the index
of the added element, this index must be used next to the method at()
获取点数:
onPointAdded: {
var point = data.at(index);
console.log(point.x, point.y)
}
如何获取在Lineseries
中添加的点的X和Y?
这段代码放在一个简单的ChartView
里面。
如果我有以下情况:
LineSeries {
id: data
name: "name"
axisX: axisX
axisY: axisY
onPointAdded: {
//retrieve x and y
}
}
onPointAdded
里面的注释应该用什么替换?
谢谢。
pointAdded
signal passes as a parameter the index
of the added element, this index must be used next to the method at()
获取点数:
onPointAdded: {
var point = data.at(index);
console.log(point.x, point.y)
}