Cfx98: Need help with multi colour chart... (is it a bug?)

[User (Legacy)]

Hi,

I can observe some strange look of the data editor grid when

multiple colours chart is used. The colour boxes in the data grid

heading are displayed near to point labels. I would expected them

displayed near the series labels -- as in the other cases.

See the stored chart in the attached zip file.

Notice: Some of the "unlogical" colours in the example

vere set manually by dragging the color from palette.

Here is what I did to display the chart.

================================================================

I have used the multiple colors chart with several series,

20 points, 3D, Z-clustered bars. One of the series has point

bars coloured by calculated RGB values. The other serie

point bars are assigned the colour from the palette -- the

serie index is used to choose the palette color.

It is my first experience with the multiple colors chart.

Is the following approach correct?

1. I am setting the multiple colors property.

    m_spChart->PutMultipleColors(TRUE);

2. If I understood well, it is necessary to open data channel

   with COD_COLORS and pass the number of colors that will be used

   (i.e. the number of points, bars). The cannel is then closed

   immediately.

    m_spChart->OpenDataEx(ChartfxLib::COD_COLORS, nSeries * iNumPoints, 0);

    m_spChart->CloseData(ChartfxLib::COD_COLORS);

3. I have opended the data channel for the data and filled the

   values together with setting the bar colour. Then the data channel

   was closed.

    m_spChart->OpenDataEx(ChartfxLib::COD_VALUES, nSeries, iNumPoints);

    ... in the loop for each of series and for each point...

    {

        ... set the value of the point...

        // Set the colour of the point.

        //

        int ColorIndex = nSerieIndex + nSeries * iPointIndex;

        COLORREF Color = RGB(255, 128, 0); // init

        switch (nSerieIndex)

        {

        case 0:

            m_spChart->PutColor(ColorIndex, ...calculated RGB...);

            break;

        default:

            // The others use the palette color for the serie.

            Color = ChartfxLib::CHART_PALETTECOLOR | nSerieIndex;

            m_spChart->PutColor(ColorIndex, Color);

        }

    }

    m_spChart->CloseData(ChartfxLib::COD_VALUES);

I am using MSVC++6, WindowsNT, Cfx4032.dll version 4.0.19.0.

Thanks for your comments,

Petr

--

Petr Prikryl, SKIL s.r.o.,  e-mail: prikrylp at skil dot cz

                            Please, don't reply via e-mail.