How to use VBA to colour pie chart
- by Timon Heinomann
I have the following code in which the code tries to create a bubble chart with pie charts as the bubbles. As in this version colour themes are used to create a different colour in each pie chart (bulbble) in the function part I have the problem that it works depending on the paths to the colour paletts.
Is there an easy way to make the function in a way that it works independently of those paths either by coding a colour for each pie chart segment or by using standardize paths (probably not possible, not preferable).
Sub PieMarkers()
Dim chtMarker As Chart
Dim chtMain As Chart
Dim intPoint As Integer
Dim rngRow As Range
Dim lngPointIndex As Long
Dim thmColor As Long
Dim myTheme As String
Application.ScreenUpdating = False
Set chtMarker = ActiveSheet.ChartObjects("chtMarker").Chart
Set chtMain = ActiveSheet.ChartObjects("chtMain").Chart
Set chtMain = ActiveSheet.ChartObjects("chtMain").Chart
Set rngRow = Range(ThisWorkbook.Names("PieChartValues").RefersTo)
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
Next
lngPointIndex = 0
Application.ScreenUpdating = True
End Sub
Function GetColorScheme(i As Long) As String
Const thmColor1 As String = "C:\Program Files\Microsoft Office\Document Themes 15\Theme Colors\Blue Green.xml"
Const thmColor2 As String = "C:\Program Files\Microsoft Office\Document Themes 15\Theme Colors\Orange Red.xml"
Select Case i Mod 2
Case 0
GetColorScheme = thmColor1
Case 1
GetColorScheme = thmColor2
End Select
End Function
The code copies a single chart again and again on the bubbles. So I woudl like to alter the Function (now called Get colourscheme) into a fucntion that assigns a a unqiue rgb colour to each segment of each pie chart
