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nbo10
USA
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 Posted - 12/09/2005 : 7:02:33 PM
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Origin Version (Select Help-->About Origin): 7.5
Operating System: XP
quick question, new to origin lab.
I have a data file that has one line that is header info. I want to parse that line and use parts of it to label the columns. Thanks |
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Mike Buess
USA
3037 Posts |
Posted - 12/10/2005 : 10:03:38 AM
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If the header line is first line you can read it like this...
string str,sFile = "C:\\Temp\\Data.dat";
stdioFile ff(sFile, file::modeRead);
ff.ReadString(str); // read line into str
ff.Close();
out_str(str); // print str
You'll find all you need for the parsing strings under string Class in the programming guide.
This will label the second column of active worksheet...
string str = "Label Text";
Worksheet wks = Project.ActiveLayer();
wks.Columns(1).SetLabel(str);
Mike Buess
Origin WebRing Member
Edited by - Mike Buess on 12/10/2005 10:13:54 AM |
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nbo10
USA
Posts |
Posted - 12/10/2005 : 9:39:15 PM
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I need some more help. What is the difference between dataset and column? I'm able to read my data but having some problems, below is the code that I'm using
Worksheet wksData;
bool bRetW = wksData.Create();
Column colA(wksData,0);
Column colB(wksData,1);
// Declare datasets in worksheet to copy data from file
Dataset dsX(colA);
Dataset dsY(colB);
wksData.Columns(1).SetLabel(TempK);
I have to say that the help files aren't very helpfull if you don't already know all the functions. I'm trying to find all the methods for Worksheet, or any other class and I can't. |
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Mike Buess
USA
3037 Posts |
Posted - 12/11/2005 : 07:41:26 AM
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What problems? There is nothing wrong with your code. However, I rarely find it necessary to declare Columns. This will work just as well.
Worksheet wksData;
bool bRetW = wksData.Create();
Dataset dsX(wksData,0);
Dataset dsY(wksData,1);
wksData.Columns(1).SetLabel(TempK);
...You'll find some useful examples at http://www.originlab.com/index.aspx?s=8&lm=243
Mike Buess
Origin WebRing Member
Edited by - Mike Buess on 12/11/2005 12:07:39 PM |
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nbo10
USA
Posts |
Posted - 12/13/2005 : 12:47:24 PM
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The code that you posed was the orginal code that I used. But the Column name doesn't change. Below is the entire funcion That I'm using. I can't seem to add more than 2 datasets, if I add
Dataset zs(wksData,1);
zs.SetSize(10);
zs = 12;
to the code a third column isn't added. If zs(wksData,2) is used a run times error is produced.
Also how do I change the name of the worksheet? I can have mulitple worksheets in one project? Thanks
void Process()
{
string FN = "C:\\Documents and Settings\\JMD\\Desktop\\data\\12-7-2005\\12-7-2005\\BB532.up";
// Open file for processing
stdioFile ffDataFile;
bool bRet = ffDataFile.Open(FN, file::modeRead);
if(!bRet)
{
printf("File not found!\n");
return;
}
printf("Processing file: %s...\n",FN);
// Create a worksheet
Worksheet wksData;
bool bRetW = wksData.Create();
// Declare datasets in worksheet to copy data from file
Dataset dsX(wksData,0);
Dataset dsY(wksData,1);
//Dataset zs(wksData,2);
//zs.SetSize(10);
//zs = 12;
// Read and discard header lines in file
string strHdr;
string TempK, TempnF,Gain,Field,sample,CC;
ffDataFile.ReadString(strHdr);
TempK = strHdr;
printf("Temp K = %s",TempK+"\n");
ffDataFile.ReadString(strHdr);
printf(strHdr+"\n");
ffDataFile.ReadString(strHdr);
TempnF = strHdr;
printf("temp nF = %s",TempnF+"\n");
ffDataFile.ReadString(strHdr);
CC = strHdr;
printf("Cc = %s",CC+"\n");
ffDataFile.ReadString(strHdr);
Field = strHdr;
printf("Fiels = %s",Field+"\n");
ffDataFile.ReadString(strHdr);
Gain = strHdr;
printf("Gain = %s",Gain+"\n");
ffDataFile.ReadString(strHdr);
sample = strHdr;
printf("Sample = %s",sample+"\n");
ffDataFile.ReadString(strHdr);
printf(strHdr+"\n");
ffDataFile.ReadString(strHdr);
printf(strHdr+"\n");
ffDataFile.ReadString(strHdr);
printf(strHdr+"\n");
\\Test Column name change
\\Doesn't Change name of Column
\ wksData.Columns(0).SetLabel("sdasd");
// Loop thru and read all lines from file, and fill data into worksheet columns
bool bRead;
do
{
bRead = ffDataFile.ReadString(strHdr);
if(bRead)
{
int ii = dsX.GetSize();
dsX.SetSize(ii+1); // increment size of datasets
dsY.SetSize(ii+1);
string str1 = strHdr.GetToken(0); // break string into tokens
dsX[ii] = atof(str1); // convert string to number
str1 = strHdr.GetToken(1);
dsY[ii] = atof(str1);
}
}while (bRead);
// Create a graph
//GraphPage grphData;
//bool bRetG = grphData.Create("Origin"); // use the "Origin" template for graph
//
//// Point to active layer in current graph page
//GraphLayer grphLayer = grphData.Layers();
//
//// Declare a curve object using x,y columns of worksheet
//Curve crvData(wksData, 0, 1);
//
//// Plot data curve to active layer
//int nPlot = grphLayer.AddPlot(crvData, IDM_PLOT_SCATTER);
//grphLayer.Rescale();
//
//// Get name of curve
//string strYDataName;
//crvData.GetName(strYDataName);
printf("done!\n");
} |
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nbo10
USA
Posts |
Posted - 12/13/2005 : 2:05:08 PM
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Ok, I think I've got the extra columns, but editing th names of the columns and worksheet are still problems
Edited by - nbo10 on 12/13/2005 2:07:50 PM |
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Topic |
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header line -> Column name