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Paint does not paint the legend box for Pie Charts


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Hi

I am using the Paint method to paint a graph on to the HDC. The legend box

does not get printed correctly if the

Chart type is a Pie. For all other Chart Types the Legend Box appears

correctly. Why does this happen?

In the display mode and save as bmp the legend box appears right.

Attached is the generated PDF file

thanks

Indhu

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I have done that already, it shows up fine when I display it but while

printing, I am doing a

Paint() to print the chart to the printer, the legend does not print

"SoftwareFX Support" <support@softwarefx.com> wrote in message

news:GDxlncMEDHA.1336@webserver1.softwarefx.com...

> As oppose to other chart types, the Pie chart doesn't have a series legend

> as it has only one series, it has a values legend, so make sure you turn

on

> the values legend (LegendBox = true) and call LegendBoxObj.SizeToFit after

> setting your data.

>

> --

> FP

> Software FX, Inc.

>

>

Attachments.zip

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The following code, draws a Pie chart into a Printer DC, it works as

expected, it prints the chart as well as the legend.

My guess would be that you are specifying a rectangle that bleeds out of the

page and therefore you don't get to see the legend on the right. To confirm

this, move the legend to the Top or Left of the chart.

Another possibility is that the printer driver has something to do with it,

please try printing to a real printer instead of a PDF to see if you get

different results.

Private Sub Command1_Click()

Dim l, r, t, b As Integer 'left,right,top and bottom

Printer.Print ""

px = Printer.TwipsPerPixelX

py = Printer.TwipsPerPixelY

w = Printer.Width

h = Printer.Height

gap = 100 / px

t = gap

b = ((h / 2) / py) - gap

l = gap

r = (w / px) - gap

ChartFX1.Paint Printer.hDC, l, t, r, b, CPAINT_PRINT, 0

Printer.EndDoc

End Sub

Private Sub Form_Load()

ChartFX1.Legend(0) = "Legend 1"

ChartFX1.Legend(1) = "Legend 2"

ChartFX1.Legend(2) = "Legend 3"

ChartFX1.Legend(3) = "Legend 4"

ChartFX1.Legend(4) = "Legend 5"

ChartFX1.LegendBox = True

End Sub

--

FP

Software FX, Inc.

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Thank you for getting back to me.

I tried the code in VB and again tried the same code in VC++, I seem to be

getting different results the LegendBox is not shown. Here is my piece of

code. Can you please test this and tell what is going on ?

Thanks

Indhu

IChartFXPtr m_pChartFX;

BOOL bRet = TRUE;

try

{

m_pChartFX.CreateInstance(__uuidof(ChartFX));

}

catch(...)

{

bRet = FALSE;

}

m_pChartFX->Gallery = PIE; //chart type

m_pChartFX->Chart3D = FALSE;

m_pChartFX->LegendBox = TRUE;

m_pChartFX->SerLegBox = FALSE;

m_pChartFX->Title[CHART_TOPTIT] = "";

m_pChartFX->OpenDataEx((CfxCod) (COD_VALUES|COD_REMOVE), 1, 5);

//5 pie slices

m_pChartFX->ValueEx[0][0] = 10.00;

m_pChartFX->ValueEx[0][1] = 20.00;

m_pChartFX->ValueEx[0][2] = 30.00;

m_pChartFX->ValueEx[0][3] = 25.00;

m_pChartFX->ValueEx[0][4] = 15.00;

m_pChartFX->Legend[0] = (LPCTSTR)"Legend 1";

m_pChartFX->Legend[1] = (LPCTSTR)"Legend 2";

m_pChartFX->Legend[2] = (LPCTSTR)"Legend 3";

m_pChartFX->Legend[3] = (LPCTSTR)"Legend 4";

m_pChartFX->Legend[4] = (LPCTSTR)"Legend 5";

m_pChartFX->CloseData(COD_VALUES);

m_pChartFX->LegendBoxObj->AutoSize = TRUE;

m_pChartFX->LegendBoxObj->SizeToFit();

CPrintDialog dlg(FALSE, PD_SELECTION | PD_USEDEVMODECOPIES);

if (dlg.DoModal() == IDOK)

{

HDC hdc = dlg.GetPrinterDC();

int width = GetDeviceCaps(hdc,HORZRES);

int height = GetDeviceCaps(hdc,VERTRES);

CRect rect;

rect.left = (width / 10);

rect.top = (height/ 10);

rect.right = width - (width / 10);

rect.bottom = height - (height / 10);

DOCINFO docinfo;

memset( &docinfo, 0, sizeof( DOCINFO ) );

docinfo.cbSize = sizeof( DOCINFO );

StartDoc(hdc,&docinfo);

StartPage(hdc);

m_pChartFX->Paint((long)hdc,rect.left,rect.top,rect.right,rect.bottom,CPAINT

_PRINT,0);

EndPage(hdc);

EndDoc(hdc);

}

"SoftwareFX Support" <support@softwarefx.com> wrote in message

news:7VOfz89EDHA.2532@webserver1.softwarefx.com...

> The following code, draws a Pie chart into a Printer DC, it works as

> expected, it prints the chart as well as the legend.

>

> My guess would be that you are specifying a rectangle that bleeds out of

the

> page and therefore you don't get to see the legend on the right. To

confirm

> this, move the legend to the Top or Left of the chart.

>

> Another possibility is that the printer driver has something to do with

it,

> please try printing to a real printer instead of a PDF to see if you get

> different results.

>

> Private Sub Command1_Click()

> Dim l, r, t, b As Integer 'left,right,top and bottom

> Printer.Print ""

> px = Printer.TwipsPerPixelX

> py = Printer.TwipsPerPixelY

> w = Printer.Width

> h = Printer.Height

> gap = 100 / px

> t = gap

> b = ((h / 2) / py) - gap

> l = gap

> r = (w / px) - gap

> ChartFX1.Paint Printer.hDC, l, t, r, b, CPAINT_PRINT, 0

> Printer.EndDoc

> End Sub

>

> Private Sub Form_Load()

> ChartFX1.Legend(0) = "Legend 1"

> ChartFX1.Legend(1) = "Legend 2"

> ChartFX1.Legend(2) = "Legend 3"

> ChartFX1.Legend(3) = "Legend 4"

> ChartFX1.Legend(4) = "Legend 5"

> ChartFX1.LegendBox = True

> End Sub

>

>

> --

> FP

> Software FX, Inc.

>

>

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