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require 'win32ole'
# -4100 is the value for the Excel constant xl3DColumn.
ChartTypeVal = -4100;
# Creates OLE object to Excel
#excel = WIN32OLE.new("excel.application.5")
excel = WIN32OLE.new("excel.application")
# Create and rotate the chart
excel.visible = TRUE;
excel.Workbooks.Add();
excel.Range("a1").value = 3;
excel.Range("a2").value = 2;
excel.Range("a3").value = 1;
excel.Range("a1:a3").Select();
excelchart = excel.Charts.Add();
excelchart.type = ChartTypeVal;
i = 30
i.step(180, 10) do |rot|
# excelchart['Rotation'] = rot;
excelchart.rotation=rot;
end
# Done, bye
excel.ActiveWorkbook.Close(0);
excel.Quit();
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