Question

最初我写了一个函数，它根据预定义的颜色主题改变了一系列饼图的外观

    Function GetColorScheme(i As Long) As String
Const thmColor1 As String = "C:\Program Files\Microsoft Office\Document Themes 14\Theme Colors\Blue Green.xml"
Const thmColor2 As String = "C:\Program Files\Microsoft Office\Document Themes 14\Theme Colors\Orange Red.xml"
    Select Case i Mod 2
        Case 0
            GetColorScheme = thmColor1
        Case 1
            GetColorScheme = thmColor2
    End Select
End Function

但是，路径不是常量，我想用rgb颜色自己定义每个饼图切片。我在prevoveru主题（How to use VBA to colour pie chart）中的stackoverflow上找到了一种更改饼图每个切片颜色的方法

但我不知道如何将代码实现到上面提到的函数中。我可以写下

吗？

    Function GetColorScheme(i As Long) As String

    Select Case i Mod 2
        Case 0
            Dim clr As Long, x As Long

For x = 1 To 3
    clr = RGB(0, x * 8, 0)
    With ActiveSheet.ChartObjects(1).Chart.SeriesCollection(1).Points(x)
        .Format.Fill.ForeColor.RGB = clr
    End With
Next x
        Case 1
            Dim clr As Long, x As Long

For x = 1 To 3
    clr = RGB(0, x * 8, 0)
    With ActiveSheet.ChartObjects(1).Chart.SeriesCollection(1).Points(x)
        .Format.Fill.ForeColor.RGB = clr
    End With
Next x
    End Select
End Function

该函数链接到脚本的主要部分（即）

For Each rngRow In Range("PieChartValues").Rows
chtMarker.SeriesCollection(1).Values = rngRow
ThisWorkbook.Theme.ThemeColorScheme.Load GetColorScheme(thmColor)
chtMarker.Parent.CopyPicture xlScreen, xlPicture
lngPointIndex = lngPointIndex + 1
chtMain.SeriesCollection(1).Points(lngPointIndex).Paste
thmColor = thmColor + 1

行

 ThisWorkbook.Theme.ThemeColorScheme.Load GetColorScheme(thmColor)

获取函数的值（参见代码的第一位 - 原始函数）但现在我不再定义thmColor变量，并且不知道如何最好地将代码实现到函数部分

Answer 1

这样的东西（你需要调整颜色以满足你的需要）

http://www.rapidtables.com/web/color/RGB_Color.htm

Sub ApplyColorScheme(cht As Chart, i As Long)

    Dim arrColors

    Select Case i Mod 2
        Case 0
            arrColors = Array(RGB(50, 50, 50), _
                              RGB(100, 100, 100), _
                              RGB(200, 200, 200))
        Case 1
            arrColors = Array(RGB(150, 50, 50), _
                              RGB(150, 100, 100), _
                              RGB(250, 200, 200))
    End Select

    With cht.SeriesCollection(1)
        .Points(1).Format.Fill.ForeColor.RGB = arrColors(0)
        .Points(2).Format.Fill.ForeColor.RGB = arrColors(1)
        .Points(3).Format.Fill.ForeColor.RGB = arrColors(2)
    End With

End Sub

使用示例：

chtMarker.SeriesCollection(1).Values = rngRow
ApplyColorScheme chtMarker, thmColor
chtMarker.Parent.CopyPicture xlScreen, xlPicture

在excel VBA中更改饼图的切片颜色

1 个答案: