VS2013.NET4.0,C# Winform,Chart控件
Chart缩放设置:
chartArea.CursorX.IsUserEnabled = true;
chartArea.CursorX.IsUserSelectionEnabled = true;
chartArea.AxisX.ScaleView.Zoomable = true;
chartArea.CursorY.IsUserEnabled = true;
chartArea.CursorY.IsUserSelectionEnabled = true;
chartArea.AxisY.ScaleView.Zoomable = true;
Chart视野范围改变事件
private void Chart1_SelectionRangeChanged(object sender, CursorEventArgs e)
{
ChartArea CA = chartDemo.ChartAreas[0];
double X01 = CA.AxisX.ScaleView.ViewMinimum;
double X02 = CA.AxisX.ScaleView.ViewMaximum;
textBox1.Text = X01.ToString() + "," + X02.ToString();
}
在静态读取数据,或产生随时间变化的动态随机曲线时,X01、X02都能取到数据点的索引值[0、1、2、3、、、]这种,但现在由串口实时读取,鼠标框选chart时,得到的X01、X02值却是如43020.8095这样4万几的超大数据。摸索了两天也没有解决这个问题,特来求教。