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

[Software FX]

Hello,

This behavior is normal.  It does not make a lot of sense when you have multiple series and multiple colors is set to true but if you have one series then this behavior with multiple colors then does make sense.

Justin Trask

Software FX

Please reply to: cfxie@softwarefx.com

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-----Original Message-----

From: Petr Prikryl

[mailto:Answer.via.news.please.prikrylp@nospam.skil.nospam.cz.nospam]

Posted At: Friday, November 24, 2000 8:59 AM

Posted To: General

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

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

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.