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如何在Excel 2007中以编程方式更改图表中系列的线条颜色

vba charts excel-vba excel

2

geometrikal · 技术社区 · 17 年前

我有一张图表,上面有一系列表示一大组(1000)离散测量值。其中一些是错误的测量,我想根据另一组描述测量准确度的数据为该系列的线条上色。坏的测量值应该是红色,好的测量值应该是绿色,介于两者之间的是从红色到黄色再到绿色的渐变。

这应该能够与VBA编程,但我不知道该怎么做。谁能给我一些提示吗?

2 回复 | 直到 8 年前

1

4

Fionnuala 17 年前

在VBA中给图表线上色很容易。这里有一些注释。

Dim cht  As Chart
Dim sc As Series
Dim blnBad As Boolean
Dim j

j = 85 'RGB orange '
blnBad = False

'This is a chart called Chart 1, it would be possible '
'to use the charts collection '
Set cht = ActiveSheet.ChartObjects("Chart 1").Chart
'A chart is composed of series of data ... '
For Each sc In cht.SeriesCollection
    ' ... that you can iterate through to pick up '
    ' the individual data values, or a data range. '
    ' Values in this case. '
    For i = LBound(sc.Values) To UBound(sc.Values)
        ' That can be checked against another set of '
        ' values in the range Bad. '
        With ActiveSheet.Range("Bad")
            ' So, look for the value ... '
            Set c = .Find(sc.Values(i), lookat:=xlWhole, LookIn:=xlValues)
            ' and if it is found ... '
            If Not c Is Nothing Then
                ' ... then set the Bad flag '
                blnBad = True
            End If
        End With
    Next
    ' So, this range contains a Bad value '
    ' and we will colour it red ... '
    If blnBad Then
        sc.Border.Color = RGB(255, 0, 0)
        ' ... not forgetting the markers '
        sc.MarkerForegroundColor = RGB(255, 0, 0)
    Else
        ' Otherwise, use an increasingly yellow colour '
        sc.Border.Color = RGB(255, j, 0)
        sc.MarkerForegroundColor = RGB(255, j, 0)

        j = j + 30 ' getting more yellow
        ' Debug.Print j ' uncomment to see j in the immediate window '
    End If
    blnBad = False
Next
End Sub

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1

Elijah 17 年前