TeeChart for .NET是優秀的工業4.0 WinForm圖表控件，官方獨家授權漢化，集功能全面、性能穩定、價格實惠等優勢于一體。TeeChart for .NET 中文版還可讓您在使用和學習上沒有任何語言障礙，至少可以節省30%的開發時間。

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TeeChart Pro會自動為你定義所有的軸標記，并提供足夠的靈活性來定制你可能有的任何具體要求。TeeChart Pro提供真正的多軸。這些都可以在設計或運行時使用，為軸的定義提供了無數的可能性和靈活性。更多信息請參見本教程中的章節。

軸控制 - 關鍵領域 

尺度 
當你將系列數據添加到圖表中時，軸的刻度會自動設置。你可以在設計時或在運行時通過使用軸的屬性來改變默認值。

自動選擇最佳的軸刻度范圍以適應你的數據。如果你把自動關閉，刻度部分將取消灰色選項，你可以改變軸的值。重要的是，記得從頁面左邊的坐標軸列表中選擇你想配置的坐標軸。

在設計時使用TeeChart編輯器在圖表中添加一個線型系列，然后用以下代碼添加一個命令按鈕。

[C#.Net] 
Random rnd = new Random(); 
for(int i = 0; i <= 40; ++i) 
line1.Add(Convert.ToDouble(i),rnd.Next(100),Color.Red); 
 
[VB.Net] 
Dim i As Integer 
For i = 0 To 40 
   Line1.Add(Convert.ToDouble(i), Rnd() * 100, Color.Red) 
Next i 

Setting axis scales by code 

[C#.Net] 
Steema.TeeChart.Axis bottomAxis = tChart1.Axes.Bottom; 
bottomAxis.Automatic = false; 
bottomAxis.Maximum = 36; 
bottomAxis.Minimum = 5; 
 
[VB.Net] 
With TChart1.Axes.Bottom 
   .Automatic = False 
   .Maximum = 36 
   .Minimum = 5 
End With 

[C#.Net] 
Steema.TeeChart.Axis bottomAxis = tChart1.Axes.Bottom; 
bottomAxis.AutomaticMaximum = true; 
bottomAxis.AutomaticMinimum = false; 
bottomAxis.Minimum = 5; 
 
[VB.Net] 
With TChart1.Axes.Bottom 
   .AutomaticMaximum = True 
   .AutomaticMinimum = False 
   .Minimum = 5 
End With 

你可以定制軸的間隔。從軸頁面的Scales部分選擇Desired Increment組合框，并添加你需要的增量。你可以在運行時通過代碼改變這一點。

[C#.Net] 
Steema.TeeChart.Axis bottomAxis = tChart1.Axes.Bottom; 
bottomAxis.Increment = 20; 
 
[VB.Net] 
With TChart1.Axes.Bottom 
   .Increment = 20 
End With 

如果你的數據是數據時間（你可以通過進入系列，常規頁面為你的系列設置數據為數據時間），Chart->Axis頁面，scales部分將顯示數據時間范圍。從 "期望的增量 "組合框中選擇增量，并添加一些樣本數據。

[C#.Net] 
Random rnd = new Random(); 
DateTime today = DateTime.Today; 
TimeSpan oneDay = TimeSpan.FromDays(1); 
line1.XValues.DateTime = true; 
for(int i = 1; i <= 25; ++i)  
     line1.Add(today,rnd.Next(100),Color.Red); 
     today += oneDay; 
 
 
[VB.Net] 
Dim i As Integer 
Dim Today As DateTime = DateTime.Today 
Dim OneDay As TimeSpan = TimeSpan.FromDays(1) 
Line1.XValues.DateTime = True 
For i = 1 To 25 
     Line1.Add(Today, Rnd() * 100, Color.Red) 
     Today = Today.Add(OneDay) 
Next 

[C#.Net] 
Steema.TeeChart.Axis bottomAxis = tChart1.Axes.Bottom; 
bottomAxis.Increment = Steema.TeeChart.Utils.GetDateTimeStep(Steema.TeeChart.DateTimeSteps.TwoDays); 
 
[VB.Net] 
With TChart1.Axes.Bottom 
   .Increment = Steema.TeeChart.Utils.GetDateTimeStep(Steema.TeeChart.DateTimeSteps.TwoDays) 
End With 

標題 
標題是在軸頁的標題部分設置的。你可以改變軸的標題文本及其字體和陰影屬性。標題文本的角度和大小也可以被指定。關于運行時間，請看 AxisTitle 類。
標簽 
請參閱AxisLabels類，了解標簽屬性的簡歷。
注意 
當改變軸標簽頻率時，請記住，TeeChart將根據AxisLabels.Separation屬性的設置來避免標簽重疊。這意味著，如果標簽頻率太高，標簽無法適應，那么TeeChart將分配 "最適合"。改變標簽角度和標簽分離是2個選項，可能有助于你適合你所需要的標簽。參見AxisLabels.Angle屬性。
標簽格式 
你可以將所有標準的數字和日期格式應用于軸的標簽。軸頁，標簽部分包含 "數值格式 "字段。如果你的數據是日期時間，字段名就會變成 "日期時間格式"。在運行時使用。

[C#.Net] 
tChart1.Axes.Bottom.Labels.ValueFormat = "#,##0.00;(#,##0.00)"; 
 
[VB.Net] 
With TChart1.Axes.Bottom 
   .Labels.ValueFormat = "#,##0.00;(#,##0.00)" 
End With 

[C#.Net] 
tChart1.Axes.Bottom.Labels.DateTimeFormat = "dddd/MMMM/yyyy"; 
 
[VB.Net] 
With TChart1.Axes.Bottom 
   .Labels.DateTimeFormat = "dddd/MMMM/yyyy" 
End With 

[C#.Net] 
bar1.Add(1234, "New" + Steema.TeeChart.Texts.LineSeparator + "Cars", Color.Red); 
bar1.Add(2000, "Old" + Steema.TeeChart.Texts.LineSeparator + "Bicycles", Color.Red); 
tChart1.Panel.MarginBottom = 10; 
 
[VB.Net] 
Bar1.Add(1234, "New" + Steema.TeeChart.Texts.LineSeparator + "Cars", Color.Red) 
Bar1.Add(2000, "Old" + Steema.TeeChart.Texts.LineSeparator + "Bicycles", Color.Red) 
TChart1.Panel.MarginBottom = 10 

[C#.Net] 
bar1.Add(DateTime.Parse("28/2/2003"), 100, Color.Red)。
bar1.Add(DateTime.Parse("1/3/2003"), 200, Color.Red)。
bar1.Add(DateTime.Parse("2/3/2003"), 150, Color.Red); 
bar1.XValues.DateTime = true; 
tChart1.Axes.Bottom.Labels.DateTimeFormat = "MM/dd hh:mm" 。
tChart1.Axes.Bottom.Labels.MultiLine = true; 
tChart1.Panel.MarginBottom = 10;     
 
[VB.Net] 
Bar1.Add(DateValue("28/2/2003"), 100, Color.Red) 
Bar1.Add(DateValue("1/3/2003"), 200, Color.Red) 
Bar1.Add(DateValue("2/3/2003"), 150, Color.Red) 
Bar1.XValues.DateTime = True 
TChart1.Axes.Bottom.Labels.DateTimeFormat = "MM/dd hh:mm" 
TChart1.Axes.Bottom.Labels.MultiLine = True 
TChart1.Panel.MarginBottom = 10 

在運行時，你總是可以使用OnGetAxisLabel事件，以編程方式將標簽分成幾行。

[C#.Net] 
private void tChart1_GetAxisLabel(object sender, Steema.TeeChart.TChart.GetAxisLabelEventArgs e) 
         
            string myLabelText = e.LabelText; 
            tChart1.Axes.Bottom.Labels.SplitInLines(ref myLabelText, " "); 
            e.LabelText = myLabelText; 
         
 
[VB.Net] 
Private Sub TChart1_GetAxisLabel(ByVal sender As Object, ByVal e As Steema.TeeChart.TChart.GetAxisLabelEventArgs) Handles TChart1.GetAxisLabel 
        Dim myLabelText As String 
        myLabelText = e.LabelText 
        TChart1.Axes.Bottom.Labels.SplitInLines(myLabelText, " ") 
        e.LabelText = myLabelText 
End Sub 

軸AxisLabels.Angle屬性也可以用于多行軸標簽。

定制軸標簽 
進一步的標簽控制可以通過使用Axis事件獲得。這些事件允許你激活/停用/改變任何單獨的軸標簽。下面的例子修改了每個Label，在點的索引值前面加上一個文本短語。

[C#.Net] 
private void button1_Click(object sender, System.EventArgs e) 
         
            bar1.FillSampleValues(20); 
            tChart1.Axes.Bottom.Labels.Style = AxisLabelStyle.Mark; 
         
 
private void tChart1_GetAxisLabel(object sender, Steema.TeeChart.TChart.GetAxisLabelEventArgs e) 
         
            if(((Steema.TeeChart.Axis)sender).Equals(tChart1.Axes.Bottom)) 
            e.LabelText = "Period " + Convert.ToString(e.ValueIndex); 
         
 
[VB.Net] 
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click 
        Bar1.FillSampleValues(20) 
        TChart1.Axes.Bottom.Labels.Style = Steema.TeeChart.AxisLabelStyle.Mark 
End Sub 
 
Private Sub TChart1_GetAxisLabel(ByVal sender As Object, ByVal e As Steema.TeeChart.TChart.GetAxisLabelEventArgs) Handles TChart1.GetAxisLabel 
        If CType(sender, Steema.TeeChart.Axis) Is TChart1.Axes.Bottom Then 
            e.LabelText = "Period " & e.ValueIndex 
        End If 
End Sub 

對數標簽 
正常的對數標簽可以通過以下方式設置。

[C#.Net] 
private void button1_Click(object sender, System.EventArgs e) 
         
            Random rnd = new Random(); 
            Steema.TeeChart.Axis leftAxis = tChart1.Axes.Left; 
            tChart1.Aspect.View3D = false; 
            bar1.Marks.Visible = false; 
            for(int i = 0; i <= 100; ++i) 
            bar1.Add(rnd.Next(100) * i); 
            leftAxis.LogarithmicBase = 10; 
            leftAxis.Logarithmic = true; 
            leftAxis.SetMinMax(0, 10000); 
            leftAxis.Labels.ValueFormat = "#e+0"; //exponential format  
         
 
[VB.Net] 
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click 
        Dim i As Integer 
        TChart1.Aspect.View3D = False 
        Bar1.Marks.Visible = False 
        For i = 0 To 10000 Step 100 
            Bar1.Add(Rnd() * i) 
        Next 
        With TChart1.Axes.Left 
            .LogarithmicBase = 10 
            .Logarithmic = True 
            .SetMinMax(0, 10000) 
            .Labels.ValueFormat = "#e+0" ' exponential format  
        End With 
End Sub 

Ticks and Minor 

 

[C#.Net] 
Steema.TeeChart.Axis bottomAxis = tChart1.Axes.Bottom; 
bottomAxis.Ticks.Length = 7; 
bottomAxis.Ticks.Color = Color.Green; 
bottomAxis.MinorTickCount = 10;     
 
[VB.Net] 
With TChart1.Axes.Bottom 
   .Ticks.Length = 7 
   .Ticks.Color = Color.Green 
   .MinorTickCount = 10 
End With 

軸有一個屬性可以修改每個軸的位置。在這個例子中，軸被移動到圖表總寬度的50%，所以它被顯示在圖表中心。

[C#.Net] 
Steema.TeeChart.Axis bottomAxis = tChart1.Axes.Bottom; 
bottomAxis.PositionUnits = PositionUnits.Percent; 
bottomAxis. RelativePosition = 50 
 
[VB.Net] 
With TChart1.Axes.Bottom 
   .PositionUnits = PositionUnits.Percent 
   .RelativePosition = 50 
End With 

復制坐標軸 
TeeChart提供了5個與數據系列相關的軸。左、頂、底、右和深度。當你在圖表中添加一個新的系列時，你可以定義該系列應該與哪個軸相關（進入系列標簽，常規頁面）。您可以通過使用Axis Customdraw方法在圖表的任何地方重復前4個軸的任何一個（或全部）。請注意，該方法是對你的軸進行復制，而不是添加一個新的自定義軸。更多信息請參見下一節 "多個自定義軸"。
例子。

[C#.Net] 
private void Form1_Load(object sender, System.EventArgs e) 
         
            Random Rnd = new Random(); 
            tChart1.Aspect.View3D = false; 
            tChart1.Panel.Gradient.Visible = true; 
            for(int t = 0; t <= 20; ++t) 
            line1.Add(t, ((Rnd.Next(100)) + 1) - ((Rnd.Next(70)) + 1), Color.Red); 


private void line1_BeforeDrawValues(object sender, Steema.TeeChart.Drawing.Graphics3D g) 
         
            int posAxis = 0; 
            if(tChart1.Axes.Left.Maximum > 0) 
             
                tChart1.Axes.Left.Draw(g.ChartXCenter - 10,g.ChartXCenter - 20,g.ChartXCenter,true); 
                posAxis = tChart1.Axes.Left.CalcYPosValue(10); 
                tChart1.Axes.Bottom.Draw(posAxis + 10, posAxis + 40, posAxis, true); 
              
[VB.Net] 
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 
        Dim t As Integer 
        TChart1.Aspect.View3D = False 
        TChart1.Panel.Gradient.Visible = True 
        For t = 0 To 20 
            Line1.Add(t, ((Rnd() * 100) + 1) - ((Rnd() * 70) + 1), Color.Red) 
        Next 
    End Sub 
 
Private Sub Line1_BeforeDrawValues(ByVal sender As Object, ByVal g As Steema.TeeChart.Drawing.Graphics3D) Handles Line1.BeforeDrawValues 
        Dim posAxis As Integer 
        If TChart1.Axes.Left.Maximum > 0 Then 
            TChart1.Axes.Left.Draw(g.ChartXCenter - 10, g.ChartXCenter - 20, g.ChartXCenter, True) 
            posAxis = TChart1.Axes.Left.CalcYPosValue(10) 
            TChart1.Axes.Bottom.Draw(posAxis + 10, posAxis + 40, posAxis, True) 
        End If 
End Sub 

多個自定義軸 
與PositionPercent和拉伸屬性一起，可以在圖表的任何地方浮動無限的軸。滾動、縮放和坐標軸的檢測也適用于自定義創建的坐標軸?，F在可以在設計時通過TeeChart編輯器和在運行時通過幾行代碼創建額外的軸。

通過圖表編輯器 

通過代碼 

[C#.Net] 
private void Form1_Load(object sender, System.EventArgs e) 
         
            Line line1 = new Line(); 
            Line line2 = new Line();  
 
            tChart1.Aspect.View3D = false; 
            tChart1.Panel.Gradient.Visible = true; 
            tChart1.Header.Text = "TeeChart Multiple Axes"; 
            tChart1.Series.Add(line1); 
            tChart1.Series.Add(line2); 
 
            for(int t = 0; t <= 10; ++t) 
             
                line1.Add(Convert.ToDouble(t), Convert.ToDouble(10 + t), Color.Red); 
                if(t > 1) 
                line2.Add(Convert.ToDouble(t), Convert.ToDouble(t), Color.Green); 
             
 
            Axis leftAxis = tChart1.Axes.Left; 
 
            leftAxis.StartPosition = 0; 
            leftAxis.EndPosition = 50; 
            leftAxis.AxisPen.Color = Color.Red; 
            leftAxis.Title.Font.Color = Color.Red; 
            leftAxis.Title.Font.Bold = true; 
            leftAxis.Title.Text = "1st Left Axis"; 
 
//            You are able to then position the new Axis in overall relation to the Chart  
//            by using the StartPosition and EndPosition  properties. 
// 
//            StartPosition=50 
//            EndPosition=100 
// 
//            These figures are expressed as percentages of the Chart Rectangle with 0 (zero) 
//            (in the case of a vertical Axis) being Top. These properties can be applied to  
//            the Standard Axes to create completely partitioned 'SubCharts' within the Chart. 
 
            Axis axis1 = new Axis(false, false, tChart1.Chart); 
 
            tChart1.Axes.Custom.Add(axis1); 
 
            line2.CustomVertAxis = axis1; 
 
            axis1.StartPosition = 50; 
            axis1.EndPosition = 100; 
            axis1.AxisPen.Color = Color.Green; 
            axis1.Title.Font.Color = Color.Green; 
            axis1.Title.Font.Bold = true; 
            axis1.Title.Text = "Extra Axis"; 
            axis1.PositionUnits= PositionUnits.Percent; 
                                                axis1.RelativePosition = 20; 
         
 
[VB.Net] 
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 
        Dim Line1 As New Steema.TeeChart.Styles.Line() 
        Dim Line2 As New Steema.TeeChart.Styles.Line() 
        Dim t As Integer 
 
        TChart1.Aspect.View3D = False 
        TChart1.Panel.Gradient.Visible = True 
        TChart1.Header.Text = "TeeChart Multiple Axes" 
        TChart1.Series.Add(Line1) 
        TChart1.Series.Add(Line2) 
 
        For t = 0 To 10 
            Line1.Add(t, 10 + t, Color.Red) 
            If (t > 1) Then 
                Line2.Add(t, t, Color.Green) 
            End If 
        Next 
 
        With TChart1.Axes.Left 
            .StartPosition = 0 
            .EndPosition = 50 
            .AxisPen.Color = Color.Red 
            .Title.Font.Color = Color.Red 
            .Title.Font.Bold = True 
            .Title.Text = "1st Left Axis" 
        End With 
 
        'You are able to then position the new Axis in overall relation to the Chart  
        'by using the StartPosition and EndPosition  properties. 
 
        '      StartPosition = 50 
        '      EndPosition = 100 
 
        'These figures are expressed as percentages of the Chart Rectangle with 0 (zero) 
        '(in the case of a vertical Axis) being Top. These properties can be applied to  
        'the Standard Axes to create completely partitioned 'SubCharts' within the Chart. 
 
        Dim Axis1 As New Steema.TeeChart.Axis(False, False, TChart1.Chart) 
 
        TChart1.Axes.Custom.Add(Axis1) 
 
        Line2.CustomVertAxis = Axis1 
 
        Axis1.StartPosition = 50 
        Axis1.EndPosition = 100 
        Axis1.AxisPen.Color = Color.Green 
        Axis1.Title.Font.Color = Color.Green 
        Axis1.Title.Font.Bold = True 
        Axis1.Title.Text = "Extra Axis" 
        Axis1.PositionUnits.=  PositionUnits.Percent; 
        Axis1.RelativePosition = 20 
End Sub 

軸事件 

軸事件提供了運行時的靈活性，以修改軸標簽，并在軸點擊時呈現用戶的互動性。

OnClickAxis 

參見OnClickAxis事件。
例子 

[C#.Net] 
private void tChart1_ClickAxis(object sender, System.Windows.Forms.MouseEventArgs e) 
         
            if(((Steema.TeeChart.Axis)sender).Equals(tChart1.Axes.Bottom)) 
             
                MessageBox.Show("Clicked Bottom Axis at: " + line1.XScreenToValue(e.X)); 

[VB.Net] 
Private Sub TChart1_ClickAxis(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TChart1.ClickAxis 
        If CType(sender, Steema.TeeChart.Axis) Is TChart1.Axes.Bottom Then 
            MsgBox("Clicked Bottom Axis at: " & Line1.XScreenToValue(e.X)) 
        End If 
End Sub 

可以用來修改軸的標簽。參見OnGetAxisLabel事件。
例子 

[C#.Net] 
private void button1_Click(object sender, System.EventArgs e) 
         
            bar1.FillSampleValues(20); 
            tChart1.Axes.Bottom.Labels.Style = AxisLabelStyle.Mark; 
         
 
private void tChart1_GetAxisLabel(object sender, Steema.TeeChart.TChart.GetAxisLabelEventArgs e) 
         
            if(((Steema.TeeChart.Axis)sender).Equals(tChart1.Axes.Bottom)) 
            e.LabelText = "Period " + Convert.ToString(e.ValueIndex); 
         
 
[VB.Net] 
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click 
        Bar1.FillSampleValues(20) 
        TChart1.Axes.Bottom.Labels.Style = Steema.TeeChart.AxisLabelStyle.Mark 
End Sub 
 
Private Sub TChart1_GetAxisLabel(ByVal sender As Object, ByVal e As Steema.TeeChart.TChart.GetAxisLabelEventArgs) Handles TChart1.GetAxisLabel 
        If CType(sender, Steema.TeeChart.Axis) Is TChart1.Axes.Bottom Then 
            e.LabelText = "Period " & e.ValueIndex 
        End If 
End Sub 

可以用來決定哪些軸標簽應該被顯示。參見OnGetNextAxisLabel事件。你應該使用e.Stop布爾屬性來包括/排除軸標簽。
例子 

[C#.Net] 
private void Form1_Load(object sender, System.EventArgs e) 
         
            line1.FillSampleValues(20); 
         
 
private void tChart1_GetNextAxisLabel(object sender, Steema.TeeChart.TChart.GetNextAxisLabelEventArgs e) 
         
            if(((Steema.TeeChart.Axis)sender).Equals(tChart1.Axes.Bottom)) 
             
                e.Stop = false; 
                switch(e.LabelIndex) 
                 
                    case 0: e.LabelValue = 5; break; 
                    case 1: e.LabelValue = 13; break; 
                    case 2: e.LabelValue = 19; break; 
                    default: e.Stop = true; break; 
                 
             
         
 
[VB.Net] 
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 
        Line1.FillSampleValues(20) 
End Sub 
 
Private Sub TChart1_GetNextAxisLabel(ByVal sender As Object, ByVal e As Steema.TeeChart.TChart.GetNextAxisLabelEventArgs) Handles TChart1.GetNextAxisLabel 
        If CType(sender, Steema.TeeChart.Axis) Is TChart1.Axes.Bottom Then 
            e.Stop = False 
            Select Case e.LabelIndex 
                Case 0 : e.LabelValue = 5 
                Case 1 : e.LabelValue = 13 
                Case 2 : e.LabelValue = 19 
                Case Else : e.Stop = True 
            End Select 
        End If 
End Sub 

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