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将数据绘制到Winforms图表xy(时间,int)

charts winforms c#

1

Kevin · 技术社区 · 7 年前

我是Winforms的新手,希望在绘制数据点方面寻求帮助。

我有一个图,用以下代码初始化它:

public form1()。
{
初始化组件();
var ChartArea=chrtaamHistory.ChartAreaces[0];
var ChartSeries=chrtaamHistory.series[0];
var _currdetime=datetime.now;

//设置X轴属性
_ chartrarea.axisx.labelstyle.format=“hh:mm”;
_ chartrarea.axisx.intervaltype=datetimeintervaltype.minutes;
_ chartArea.axisx.interval=30;
_图表区.axisx.最小值=
新的日期时间(_currdetime.year,_currdetime.month,_currdetime.day,0,0,0).tooadate();
_图表区.axisx.最大值=
新的日期时间(_currdetime.year,_currdetime.month,_currdetime.day,_currdetime.hour,
_ currdetime.minute,_currdetime.second).tooadate();

//设置Y轴属性
_ ChartArea.axisy.最小值=0;
_ ChartArea.axisy.max=500;
_ ChartArea.axisy.interval=50;

//设置序列属性
_ chartSeries.chartType=seriesChartType.spline;
_ chartSeries.xValueType=chartValueType.Time;
_ chartSeries.yValueType=chartValueType.Int32;
}
图表将如下所示:



现在我被困在这里了。我不知道当x轴是一个time>有人能告诉我怎么做或给我指出正确的方向吗?public Form1()
{
    InitializeComponent();
    var _chartArea = chrtAdamHistory.ChartAreas[0];
    var _chartSeries = chrtAdamHistory.Series[0];
    var _currDateTime = DateTime.Now;

    //Set X Axis Properties
    _chartArea.AxisX.LabelStyle.Format = "HH:mm";
    _chartArea.AxisX.IntervalType = DateTimeIntervalType.Minutes;
    _chartArea.AxisX.Interval = 30;
    _chartArea.AxisX.Minimum = 
            new DateTime(_currDateTime.Year, _currDateTime.Month, _currDateTime.Day, 0, 0, 0).ToOADate();
    _chartArea.AxisX.Maximum = 
            new DateTime(_currDateTime.Year, _currDateTime.Month, _currDateTime.Day, _currDateTime.Hour, 
            _currDateTime.Minute, _currDateTime.Second).ToOADate();

    //Set Y Axis Properties
    _chartArea.AxisY.Minimum = 0;
    _chartArea.AxisY.Maximum = 500;
    _chartArea.AxisY.Interval = 50;

    //Set Series Properties
    _chartSeries.ChartType = SeriesChartType.Spline;
    _chartSeries.XValueType = ChartValueType.Time;
    _chartSeries.YValueType = ChartValueType.Int32;
}


图表如下:



现在我被困在这里了。我不知道如何添加数据点X Axis是一个Time. 有人能告诉我怎么做或给我指出正确的方向吗?

3 回复 | 直到 7 年前

1

TaW 7 年前

Chart Auto

Minimun Maximum

double Date DateTime

ToOADate Time

DataPoints

chrtAdamHistory.Series[0].Points.AddXY(timeValue.AddHours(-2).ToOADate(), intValue);   
chrtAdamHistory.Series[0].Points.AddXY(timeValue.AddHours(-1).ToOADate(), intValue + 12);
chrtAdamHistory.Series[0].Points.AddXY(timeValue.ToOADate(), intValue + 17);

 _chartSeries.XValueType = ChartValueType.Auto;      // either that or..
 _chartSeries.XValueType = ChartValueType.DateTime;  // ..that will work

DateTime.Now.ToOADate() 43291.412605081

2

0

Kamil 7 年前

DateTime timeValue = DateTime.Now; // for example
Int32 intValue = 324;

chrtAdamHistory.Series[0].Points.AddXY(timeValue, int32value);

3

-1

PaulEdison 7 年前

    for (int i=0; i < 1440; i++)
    {
        _chartSeries.Points.AddXY(i, f(i));
    }
    chrtAdamHistory.Invalidate();