All Forums  Origin Forum for Programming  Forum for Origin C  [Q] Problem plotting/creating a graph

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by cowsclaw[/i] [br]This is my very first time using Origin, much less program in Origin C, so please bare with me. I am trying to import data from an ASCII file and then plot one column vs. another. I can input and manipulate the data (it shows up in the worksheet, at least). Whenever I try to create a plot, however, it does not show. I finally managed to get the graph template to show up (i apparently had to create the GraphPage earlier in my program), but no line shows up. I tried using the code examples that I have found, but still have found no luck. If you could help me, I would greatly appreciate it. Thanks p.s. I hope my code is not too sloppy. I tried to comment it to make it easier to read. p.p.s. I am not sure if I created and implemented the Datasets and Columns correctly (even though the data shows up in the sheet), so that might be the problem. what is the difference between a Dataset and a Column anyways? is the Dataset contained within a Column and a COlumn is just used to set the physical appearance? MY CODE ------------------------------------------------------------------ #include <origin.h> // this file include most of the other header files except the NAG header, which takes longer to compile // NAG routines //#include <OC_nag.h> // this contains all the NAG headers, #include <stdio.h> #include <graph.h> //////////////////////////////////////////////////////////////////////////////////// void test(string strFileName) { //get input from user string strInitWave = InputBox("Enter the initial wavelength"); int intInitWave = atof(strInitWave); string strFinalWave = InputBox("Enter the final wavelength"); int intFinalWave = atof(strFinalWave); string strPlotType = InputBox("What would you like to plot?\n 1) wavelength vs. log PL\n 2) wavelength vs. linear PL\n 3) E vs. log PL 4) E vs. linear PL"); int intPlotType = atoi(strPlotType); //determine path int iLen = strFileName.GetLength(); int iSlash = strFileName.ReverseFind('\\'); int iDot = strFileName.ReverseFind('.'); string strSampleName = strFileName.Mid( iSlash + 1, iDot - iSlash - 1); printf("Processing file: %s .......", strSampleName); // Declare root folder of PE for the current project Folder fldRootFolder = Project.RootFolder; // Make this folder active fldRootFolder.Activate(); // Get file path of current project string strProjectPath; strProjectPath = Project.GetPath(); // Open file and read data into worksheet stdioFile ffDataFile; ffDataFile.Open(strFileName, file::modeRead); int i = 0; //count number string pmt, laser, strTemp; ffDataFile.ReadString(strTemp) ; while (strTemp.GetLength() != 0) { //get number of data points (rows) if (i != 0){ pmt = strTemp.GetToken(0); // read PMT - column 1 laser = strTemp.GetToken(7); // read LASER - column 8 } //end if i = i + 1; ffDataFile.ReadString(strTemp); } //end while i = i - 1; float itotal = i; // Close data file ffDataFile.Close(); // Create a graph using custom template GraphPage grph; string strTemplate = "Y:\Origin_script_templates\wave_vs_logPL.OTP"; if(intPlotType == 1) strTemplate = "Y:\Origin_script_templates\wave_vs_logPL.OTP"; else if(intPlotType == 3) strTemplate = "Y:\Origin_script_templates\energy_vs_logPL.OTP"; else if(intPlotType == 2) strTemplate = "Y:\Origin_script_templates\wave_vs_linPL.OTP"; else if(intPlotType == 4) strTemplate = "Y:\Origin_script_templates\energy_vs_linPL.OTP"; BOOL bOK = grph.Create(strTemplate, CREATE_VISIBLE); if (!bOK) return; // Get the first layer: bOK = grph.RemoveTemplatePict(); //grph.Rename(strSampName); GraphLayer grlay = grph.Layers(0); ASSERT(grlay.IsValid()); // Create a worksheet using custom template Worksheet wksData; string strWksTemplate = "Y:\Origin_script_templates\pmt3.otw"; int nOptionW = CREATE_VISIBLE_SAME; bool bRetW = wksData.Create(strWksTemplate, nOptionW); //Set column widths to fit text name wksData.Columns(4).SetWidth(10); wksData.Columns(3).SetWidth(14); wksData.Columns(5).SetWidth(13); wksData.Columns(6).SetWidth(16); wksData.Columns(7).SetWidth(13); //Set column names wksData.Columns(0).SetName("A"); wksData.Columns(1).SetName("PMT"); wksData.Columns(2).SetName("Laser"); wksData.Columns(3).SetName("B"); wksData.Columns(4).SetName("C"); wksData.Columns(5).SetName("D"); wksData.Columns(6).SetName("E"); wksData.Columns(7).SetName("F"); //Set column types wksData.Columns(0).SetType(OKDATAOBJ_DESIGNATION_X); wksData.Columns(1).SetType(OKDATAOBJ_DESIGNATION_Y); wksData.Columns(2).SetType(OKDATAOBJ_DESIGNATION_Y); wksData.Columns(3).SetType(OKDATAOBJ_DESIGNATION_Y); wksData.Columns(4).SetType(OKDATAOBJ_DESIGNATION_Y); wksData.Columns(5).SetType(OKDATAOBJ_DESIGNATION_X); wksData.Columns(6).SetType(OKDATAOBJ_DESIGNATION_X); wksData.Columns(7).SetType(OKDATAOBJ_DESIGNATION_Y); //Set column labels wksData.Columns(0).SetLabel("Index"); wksData.Columns(1).SetLabel("PMT"); wksData.Columns(2).SetLabel("Laser"); wksData.Columns(3).SetLabel("Avg. X Points"); wksData.Columns(4).SetLabel("No Noise"); wksData.Columns(5).SetLabel("Air Lambda (nm)"); wksData.Columns(6).SetLabel("Vacuum Lambda (nm)"); wksData.Columns(7).SetLabel("Energy (eV)"); // Declare datasets in worksheet to copy data from file Dataset dsIndex(wksData,0); Dataset dsPMT(wksData,1); Dataset dsLaser(wksData,2); Dataset dsNoNoise(wksData,3); Dataset dsAvg(wksData,4); Dataset dsAir(wksData,5); Dataset dsVacuum(wksData,6); Dataset dsEnergy(wksData,7); //Set size to match number of rows (itotal) dsIndex.SetSize(i); dsPMT.SetSize(i); dsLaser.SetSize(i); dsNoNoise.SetSize(i); dsAvg.SetSize(i); dsAir.SetSize(i); dsVacuum.SetSize(i); dsEnergy.SetSize(i); //reread data from file and put into dataset i = 0; //reset i to initial index ffDataFile.Open(strFileName, file::modeRead); ffDataFile.ReadString(strTemp) ; while (i < itotal) { ffDataFile.ReadString(strTemp); pmt = strTemp.GetToken(0); // read PMT dsPMT[i] = atoi(pmt); // set PMT data laser = strTemp.GetToken(7); // read LASER dsLaser[i] = atoi(laser); // set LASER data dsAir[i] = (i + 1.00000)/((itotal - 1.00000)/(intFinalWave - intInitWave)) + intInitWave; // set Air data dsVacuum[i] = 0.01655+1.00023*dsAir[i]+(3.52033/100000000*(dsAir[i]*dsAir[i])); // set Vacuum data dsEnergy[i] = 1239.85804/dsVacuum[i]; //set energy data dsIndex[i] = i + 1; //set index number i = i + 1; } //end while // plot Vacuum (X3) vs. Energy (Y3) string strTempName, strTempName2; dsVacuum.GetName(strTempName); dsEnergy.GetName(strTempName2); Curve cv(dsVacuum, dsEnergy); ASSERT(cv.IsValid()); int blab = grlay.AddPlot(cv); // Close data file ffDataFile.Close(); } Edited by - cowsclaw on 05/24/2004 4:07:33 PM [/quote]   Check here to include your profile signature. 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