Series Values inside Pie Chart.

Introduction

This article shows one way of displaying values inside Pie chart.

Using the code

The MSVC ide will include only mschart.h only in the PieChartView.h

//{{AFX_INCLUDES()
#include "mschart.h"
//}}AFX_INCLUDES
</CODE>

Now include all the below show header files in the PieChartView.h file...

//{{AFX_INCLUDES()
#include "mschart.h"
#include "vcplot.h"
#include "vcseriescollection.h"
#include "vcseries.h"
#include "vcdatapoint.h"
#include "vcdatapoints.h"
#include "vcdatapointlabel.h"
#include "font.h"
//}}AFX_INCLUDES
</CODE>

Next in the InitialUpdate() method of FrameView class add the following code.

void CPieChartView::OnInitialUpdate()
{
    CFormView::OnInitialUpdate();
    GetParentFrame()->RecalcLayout();
    ResizeParentToFit();
    
    int count = m_MSChart.GetPlot().GetSeriesCollection().Count();
    CY fontSize;
    fontSize.int64 = 8; 
    for(int i = 1; i< count; i++)
    {
        m_MSChart.GetPlot().GetSeriesCollection().GetItem(i).GetDataPoints().GetItem (-1).GetDataPointLabel().SetLocationType(3);    
        m_MSChart.GetPlot().GetSeriesCollection().GetItem(i).GetDataPoints().GetItem (-1).GetDataPointLabel().SetComponent(2) ;   
        m_MSChart.GetPlot().GetSeriesCollection().GetItem(i).GetDataPoints().GetItem (-1).GetDataPointLabel().SetPercentFormat("0%");   
    }
}
</CODE>

Points of Interest

The same operation in MS Visual Basic looks like this..

 For i = 1 To .Plot.SeriesCollection.Count
         With .Plot.SeriesCollection(i).DataPoints(-1).DataPointLabel
            .LocationType = VtChLabelLocationTypeOutside
            .Component = VtChLabelComponentPercent
            .PercentFormat = "0%"
            .VtFont.Size = 10
         End With
      Next i
</CODE>

Am not able to set the font size in the MSVC version... any one get to know please let me know.

History

None.

Thanks!!