윈폼 차트

 

 

 

 

 

 

system.windows.forms.datavisualization

을 쳐서 설치

 

 

 

 

 

그리고 왠지 Form1이 이런 에러 뜨면서 닫혔다

 

 

 

업데이트 하면 고쳐진다

 

 

 

 

 

 

 

 

 

 

 

 

설치 끝

 

 

아래는 내가 자주 쓰는 차트 코드들이다

 

 

 

마우스 댄 곳의 차트값 표시

검색해도 제대로 만든 사람이 없고 챗GPT도 개소리만 해서 만드는데 고생함

 

V1

V1은 특정 차트만 사용한다

private void chart1_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart1, e);
}
private void chart2_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart2, e);
}
private void chart3_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart3,e);
}

DataPoint prePoint = null;
ToolTip tooltip = new ToolTip();
private void DrawChartValue(Chart chart, MouseEventArgs e)
{
    HitTestResult result = chart.HitTest(e.X, e.Y);
    if (result.PointIndex < 0)
    {
        return;
    }
    if (chart.Series.Count==0)
    {
        return;
    }
    if (result.PointIndex >= chart.Series[0].Points.Count)
    {
        return;
    }
    {
        var dataPoint = chart.Series[0].Points[result.PointIndex];
        var date = DateTime.FromOADate(dataPoint.XValue);
        var value = dataPoint.YValues[0];

        var text = $"Date: {date.ToShortDateString()}\nValue: {value.ToString("F2")}";
        if (tooltip.GetToolTip(chart) != text)
        {
            tooltip.AutoPopDelay = 60*1000; //60초
            tooltip.SetToolTip(chart, text);
        }
        if (prePoint != dataPoint)
        {
            if (prePoint != null)
            {
                prePoint.MarkerStyle = MarkerStyle.None;
            }
            prePoint = dataPoint;
            dataPoint.MarkerStyle = MarkerStyle.Circle;
            dataPoint.MarkerSize = 8;
            dataPoint.MarkerColor = System.Drawing.Color.Red;
        }
    }
}

 

V2 모든 차트 사용

private void chart1_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart1, e);
}
private void chart2_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart2, e);
}
private void chart3_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart3,e);
}

DataPoint prePoint = null;
ToolTip tooltip = new ToolTip();
private void DrawChartValue(Chart chart, MouseEventArgs e)
{
    if (chart.Series.Count == 0)
    {
        return;
    }
    var result = chart.HitTest(e.X, e.Y);
    //var result = HitTestX(chart,e);
    if (result.PointIndex < 0)
    {
        return;
    }
    if (result.Series==null)
    {
        return;
    }
    if (result.PointIndex >= result.Series.Points.Count)
    {
        return;
    }
    {
        var dataPoint = result.Series.Points[result.PointIndex];
        var date = DateTime.FromOADate(dataPoint.XValue);
        var value = dataPoint.YValues[0];

        var text = $"{result.Series.Name}\nDate: {date.ToShortDateString()}\nValue: {value.ToString("F2")}";
        if (tooltip.GetToolTip(chart) != text)
        {
            tooltip.AutoPopDelay = 60*1000; //60초
            tooltip.SetToolTip(chart, text);
        }
        if (prePoint != dataPoint)
        {
            if (prePoint != null)
            {
                prePoint.MarkerStyle = MarkerStyle.None;
            }
            prePoint = dataPoint;
            dataPoint.MarkerStyle = MarkerStyle.Circle;
            dataPoint.MarkerSize = 8;
            dataPoint.MarkerColor = System.Drawing.Color.Red;
        }
    }
}

 

 

 

V3

가로축만 사용하는 검색기를 만들었다

근데 만들고보니까 V1보단 낫지만 V2가 더 유용한듯

private void chart1_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart1, e);
}
private void chart2_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart2, e);
}
private void chart3_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(chart3,e);
}

DataPoint prePoint = null;
ToolTip tooltip = new ToolTip();
private void DrawChartValue(Chart chart, MouseEventArgs e)
{
    if (chart.Series.Count == 0)
    {
        return;
    }
    //var result = chart.HitTest(e.X, e.Y);
    var result = HitTestX(chart,e);
    if (result.PointIndex < 0)
    {
        return;
    }
    if (result.Series==null)
    {
        return;
    }
    if (result.PointIndex >= result.Series.Points.Count)
    {
        return;
    }
    {
        var dataPoint = result.Series.Points[result.PointIndex];
        var date = DateTime.FromOADate(dataPoint.XValue);
        var value = dataPoint.YValues[0];

        var text = $"{result.Series.Name}\nDate: {date.ToShortDateString()}\nValue: {value.ToString("F2")}";
        if (tooltip.GetToolTip(chart) != text)
        {
            tooltip.AutoPopDelay = 60*1000; //60초
            tooltip.SetToolTip(chart, text);
        }
        if (prePoint != dataPoint)
        {
            if (prePoint != null)
            {
                prePoint.MarkerStyle = MarkerStyle.None;
            }
            prePoint = dataPoint;
            dataPoint.MarkerStyle = MarkerStyle.Circle;
            dataPoint.MarkerSize = 8;
            dataPoint.MarkerColor = System.Drawing.Color.Red;
        }
    }
}
public static HitTestResult HitTestX(Chart chart, MouseEventArgs e)
{
    var hitTestResult = new HitTestResult();

    var chartArea = chart.ChartAreas[0];
    chartArea.CursorX.SetCursorPixelPosition(new Point(e.X, e.Y), true);
    var result = chart.HitTest(e.X, e.Y);
    if (result.ChartArea == null)
    {
        return hitTestResult;
    }
    var xValue = chartArea.AxisX.PixelPositionToValue(e.X);

    foreach (var series in chart.Series)
    {
        for (int i = 1; i < series.Points.Count; i++)
        {
            if ((series.Points[i-1].XValue + series.Points[i].XValue) / 2 < xValue)
            {
                continue;
            }
            hitTestResult.Series = series;
            hitTestResult.PointIndex = i-1;
            return hitTestResult;
        }
    }

    return hitTestResult;
}

 

 

 

V4

V2를 더욱 개량하여  단일 함수, 단일인자로 통합시킴

prams가 들어가서 필요하다면 V2에 쓰이던 시스템과 호환도 가능하다

public Form1()
{
    InitializeComponent();

    foreach (var chart in Charts)
    {
        chart.MouseMove += charts_MouseMove;
    }
}

private void charts_MouseMove(object sender, MouseEventArgs e)
{
    DrawChartValue(Charts);
}
Chart[] Charts
{
    get
    {
        return new Chart[] { chart1, chart2, chart3 };
    }
}
DataPoint prePoint = null;
ToolTip tooltip = new ToolTip();
private void DrawChartValue(params Chart[] charts)
{

    Chart chartMain = null;
    var mousePosition = Point.Empty;
    foreach (var chart in charts)
    {
        mousePosition = chart.PointToClient(MousePosition);
        if (chart.ClientRectangle.Contains(mousePosition))
        {
            //차트 내부인지 검사절차를 거치지 않으면 다른 이벤트와 충돌 가능성이 있다
            chartMain = chart;
            break;
        }
    }
    if (chartMain == null)
    {
        return;
    }

    {
        var chart = chartMain;



        if (chart.Series.Count == 0)
        {
            return;
        }


        var result = chart.HitTest(mousePosition.X, mousePosition.Y);
        //var result = HitTestX(chart,e);
        if (result.PointIndex < 0)
        {
            return;
        }
        if (result.Series == null)
        {
            return;
        }
        if (result.PointIndex >= result.Series.Points.Count)
        {
            return;
        }
        {
            var dataPoint = result.Series.Points[result.PointIndex];
            var date = DateTime.FromOADate(dataPoint.XValue);
            var value = dataPoint.YValues[0];

            var text = $"{result.Series.Name}\nDate: {date.ToShortDateString()}\nValue: {value.ToString("F2")}";
            if (tooltip.GetToolTip(chart) != text)
            {
                tooltip.AutoPopDelay = 60 * 1000; //60초
                tooltip.SetToolTip(chart, text);
            }
            if (prePoint != dataPoint)
            {
                if (prePoint != null)
                {
                    prePoint.MarkerStyle = MarkerStyle.None;
                }
                prePoint = dataPoint;
                dataPoint.MarkerStyle = MarkerStyle.Circle;
                dataPoint.MarkerSize = 8;
                dataPoint.MarkerColor = System.Drawing.Color.Red;
            }
        }
    }
}

 

 

 

 

 

차트 XY커서 표시

GPT도 답변을 제대로 안 해주고 검색해도 안 나와서 머리 부딪히면서 만듦

public Form1()
{
    InitializeComponent();

    chart1.MouseMove += charts_MouseMove;
}
private void charts_MouseMove(object sender, MouseEventArgs e)
{
    DrawCursors(Charts);
}
Chart[] Charts
{
    get
    {
        return new Chart[] { chart1, chart2, chart3 };
    }
}
void DrawCursors(params Chart[] charts)
{
    Chart chartMain = null;
    var mousePosition = Point.Empty;
    foreach (var chart in charts)
    {
        mousePosition = chart.PointToClient(MousePosition);
        if (chart.ClientRectangle.Contains(mousePosition))
        {
            //차트 내부인지 검사절차를 거치지 않으면 다른 이벤트와 충돌 가능성이 있다
            chartMain = chart;
            break;
        }
    }
    if (chartMain == null)
    {
        return;
    }

    {
        var chart = chartMain;
        var result = chart.HitTest(mousePosition.X, mousePosition.Y);
        if (result.ChartArea == null)
        {
            return;
        }
    }


    //X커서 표시(실수)
    {
        var chart = chartMain;
        var x = mousePosition.X;
        x = Math.Min(x, chart.Width - 20);
        x = Math.Max(0, x);
        double xValue = chart.ChartAreas[0].AxisX.PixelPositionToValue(x);
        chart.ChartAreas[0].CursorX.Position = xValue;
    }



    //Y커서 표시(실수)
    {
        var chart = chartMain;
        var y = mousePosition.Y;
        y = Math.Min(y, chart.Height - 20);
        y = Math.Max(0, y);
        double yValue = chart.ChartAreas[0].AxisY.PixelPositionToValue(y);
        chart.ChartAreas[0].CursorY.Position = yValue;

    }


    var xPosition = chartMain.ChartAreas[0].CursorX.Position;
    //X커서 복제
    foreach (var chart in Charts)
    {
        chart.ChartAreas[0].CursorX.Position = xPosition;
    }
}