MSChart控件折线图显示数据点怎么实现

[luocc321]

我想让数据点的值在图表里标明出来，怎么做到？还有纵坐标的标注如何能让某些不显示出来，比如我纵坐标是100，我只想让它每5行显示一次就可以，但我纵线又得有100格

[贝隆]

我有一个小小的例子，不知道对你有用不
Option Explicit
'对于二维散点图来说，第一列代表了X轴坐标，第二列代表了Y轴坐标
'因此在定义二维数据时，第二维定义为0到1，第一维代表了第几点数据，可根据数据点数变化
'下面以数据点数有21点为列子
Dim MyData(360, 1) As Variant
Dim DataT(360, 1) As Variant
Private Const PI = 3.1415926
Dim intC As Integer
Dim dblStep As Double

Private Sub Command1_Click()
Timer1.Enabled = Not Timer1.Enabled
If Timer1.Enabled Then Command1.Caption = "停止示波器"
If Not Timer1.Enabled Then Command1.Caption = "启动示波器"
End Sub

Private Sub Form_Load()
Dim I As Integer
dblStep = 8 * PI / 360
'-----x轴坐标值-----Y轴坐标值----------
For I = 0 To 360
MyData(I, 0) = I
MyData(I, 1) = 149 * Sin(dblStep * I) + 150
Next I
For I = 0 To 360
DataT(I, 0) = I
DataT(I, 1) = 149 * Cos(dblStep * I) + 150
Next I
intC = 1
'波形图外观设置
With MSChart1
.TitleText = "速度 m/min"
' '设置图线的外观
.Plot.SeriesCollection(1).Pen.Width = 40
.Plot.SeriesCollection(1).Pen.Style = VtPenStyleSolid
' '设置XY轴
.Plot.Axis(VtChAxisIdX).ValueScale.Auto = False
.Plot.Axis(VtChAxisIdY).ValueScale.Auto = False
'// 设置最大值
.Plot.Axis(VtChAxisIdX).ValueScale.Maximum = 360
.Plot.Axis(VtChAxisIdY).ValueScale.Maximum = 300
'// 设置最小值
.Plot.Axis(VtChAxisIdY).ValueScale.Minimum = 0
.Plot.Axis(VtChAxisIdX).ValueScale.Minimum = 0
'//
.Plot.Axis(VtChAxisIdX).ValueScale.MajorDivision = 6 'X轴主要网格数量
.Plot.Axis(VtChAxisIdY).ValueScale.MajorDivision = 6 'Y轴主要网格数量
.Plot.Axis(VtChAxisIdX).ValueScale.MinorDivision = 0 'X轴次要网格数量
.Plot.Axis(VtChAxisIdY).ValueScale.MinorDivision = 0 'Y轴次要网格数量
' .Plot.Axis(VtChAxisIdX).AxisGrid.MajorPen.Style = VtPenStyleDotted
' .Plot.Axis(VtChAxisIdY).AxisGrid.MajorPen.Style = VtPenStyleDotted
MSChart1.Plot.AutoLayout = False
MSChart1.Plot.UniformAxis = False
MSChart1.chartType = VtChChartType2dXY '设置图形为二维散点图
MSChart1.ChartData = MyData '数据
End With
End Sub

Private Sub Timer1_Timer()
Dim intP As Integer
For intP = 0 To 359
MyData(intP, 1) = MyData(intP + 1, 1)
Next intP
MyData(360, 1) = 149 * Sin(intC * dblStep) + 150
intC = (intC + 1) Mod 360
MSChart1.ChartData = MyData
End Sub

[贝隆]

用Excel也可以，不那么费事

[cqq_chen]

不够好用，不如直接用excel在实现。