Mschart

[pristinepal]

Hi ,
I need to plot a lin graph with time on x-axis and c[t] on y-axis.I am not able to understand clearly how i can set the way i wanted in MSCHART.By the way I am using VC++ 6 .Any help will be appreciated.
regards,
Rajesh

[AnuBaskar]

Check-out if this helps you
The following safe array can be used to set time in x-axis and integers in y axis.
The values are taken from an excel file here. It can be changed such that it is taken from an array
long index[2];
long lRow;
COleVariant vTemp,vTemp1;
Range l_rCell;
CString s;

DWORD dwElements[2];
dwElements[0]= 16; //Number of rows
dwElements[1]= 2; //Number of columns
sa.Create(VT_VARIANT, 2, dwElements);

COleDateTime vDateTime;
for(lRow=0;lRow<=15;lRow++)
{
index[0] = lRow;
//Fill the first column with time
index[1] = 0;
vTemp = RowRange.GetItem(COleVariant((short)(lRow+1)),
COleVariant((short)1));
l_rCell.AttachDispatch(vTemp.pdispVal);

s = l_rCell.GetText().bstrVal;
vTemp1 = s;
int hh,mm,ss;
hh = atoi(s.Left(2));
mm = atoi(s.Mid(3,2));
ss = atoi(s.Right(2));
vDateTime.SetTime(hh,mm,ss);
sa.PutElement(index,(COleVariant)vDateTime);
//Fill the second column with strings
index[1] = 1;
vTemp = RowRange.GetItem(COleVariant((short)(lRow+1)),
COleVariant((short)4));
l_rCell.AttachDispatch(vTemp.pdispVal);
s = l_rCell.GetText().bstrVal;
vTemp1 = s;
sa.PutElement(index,vTemp1 );


}

Now use this safe array to create your chart.

[minakannan]

dear sir,
your code was very useful. thank you very much.
but RANGE and RowRange where it was declared.
and also want to know the details of VT_VARIANT
thank u
minakannan

[sita_krish]

Hil,
Did you figure out how to plot x-y values in vc++ using ms chart? I am starting to use the MS chart control in C++ for displaying a x-y plotter graph. But i am not able to figure out how to display a set of 32(x,y) values which range from 0-360 degrees. Could you please help me out? Also is there any help for using mschart in vc++?

Awaiting your reply.

Thanks a lot..
Krishna.