gnugraph.cpp
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00001 /*
00002 ROBOOP -- A robotics object oriented package in C++
00003 Copyright (C) 1996-2004  Richard Gourdeau
00004 
00005 This library is free software; you can redistribute it and/or modify
00006 it under the terms of the GNU Lesser General Public License as
00007 published by the Free Software Foundation; either version 2.1 of the
00008 License, or (at your option) any later version.
00009 
00010 This library is distributed in the hope that it will be useful,
00011 but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 GNU Lesser General Public License for more details.
00014 
00015 You should have received a copy of the GNU Lesser General Public
00016 License along with this library; if not, write to the Free Software
00017 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00018 
00019 
00020 Report problems and direct all questions to:
00021 
00022 Richard Gourdeau
00023 Professeur Agrege
00024 Departement de genie electrique
00025 Ecole Polytechnique de Montreal
00026 C.P. 6079, Succ. Centre-Ville
00027 Montreal, Quebec, H3C 3A7
00028 
00029 email: richard.gourdeau@polymtl.ca
00030 
00031 -------------------------------------------------------------------------------
00032 Revision_history:
00033 
00034 2003/02/03: Etienne Lachance
00035    -Added functions set_plot2d and classe IO_matrix_file.
00036 
00037 2003/29/04: Etienne Lachance
00038    -Class definitions, functions prototype, ... now in gnugraph.h
00039    -Improved class IO_matrix_file.
00040    -Class Plot2d, GNUcurve are now using STL string instead of char*.
00041    -Added class Plot_graph, to create a graph from a data file.
00042    -Replaced all NULL by 0.
00043    -Use mkstemp instead of tmpnam in void Plot2d::gnuplot(void).
00044 
00045 2003/15/08: Etienne Lachance
00046    -The member function IO_matrix_file::write writes data in column of each 
00047     variables, instead of only one. This way it is possible to load a dat file
00048     in Matlab.
00049 
00050 2004/07/01: Etienne Lachance
00051    -Added doxygen documentation.
00052 
00053 2004/07/01: Ethan Tira-Thompson
00054     -Added support for newmat's use_namespace #define, using ROBOOP namespace
00055 
00056 2004/08/10: Etienne Lachance
00057     -Added class Plot3d.
00058     -Removed using ROBOOP namespace
00059 
00060 2005/08/06 : Richard Gourdeau
00061     -fixed catch(bad_alloc)
00062 
00063 2005/08/06 : Carmine Lia
00064     -added defined(__MINGW32__) for temp files
00065 -------------------------------------------------------------------------------
00066 */
00067 
00073 
00074 static const char rcsid[] = "$Id: gnugraph.cpp,v 1.44 2006/05/19 17:49:58 gourdeau Exp $";
00075 
00076 #include "gnugraph.h"
00077 
00078 using namespace std;
00079 
00080 
00081 char *curvetype[] =
00082    {"lines",
00083     "points",
00084     "linespoints",
00085     "impulses",
00086     "dots",
00087     "steps",
00088     "boxes"};
00089 
00090 
00091 GNUcurve::GNUcurve(void)
00093 {
00094    enLineType = LINES;
00095 }
00096 
00097 
00098 GNUcurve::GNUcurve(const std::vector<double> & x, std::vector<double> & y,
00099                    const string & label, LineType_en enLineType_) :
00100     vdX(x),
00101     vdY(y),
00102     clabel(label),
00103     enLineType(enLineType_)
00105 {
00106     if (vdX.size() != vdY.size())
00107     {
00108         cerr << "GNUcurve::GNUcurve number of x and y elements does not match." << endl;
00109     }
00110 }
00111 
00112 void GNUcurve::dump(void)
00114 {
00115     cout << "Curve label: " << clabel << endl;
00116     cout << "Curve type:  " << curvetype[enLineType] << endl;
00117     cout << "Curve data points: \n";
00118 
00119     unsigned int vSize = vdX.size();
00120     for(unsigned int i = 0; i < vSize; ++i)
00121     {
00122         cout << vdX[i] << " " << vdY[i] << endl;
00123     }
00124     cout << endl;
00125 }
00126 
00127 
00128 Plot2d::Plot2d(void)
00130 {
00131 }
00132 
00133 void Plot2d::gnuplot(void)
00135 {
00136    unsigned int i;
00137    int strl;
00138 #if defined(__BCPLUSPLUS__) || defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__)
00139    char filename[L_tmpnam];
00140 #else
00141    char filename[] = "tmpfileXXXXXX";
00142 #endif
00143    char * filedata=0;
00144    char * wibsl;
00145    char bsl = '\\';
00146 
00147 #if defined(__BCPLUSPLUS__) || defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__)
00148    tmpnam(filename); /* generate a temporary file name */
00149 #else
00150    mkstemp(filename);
00151 #endif
00152    /* replacing \ by / */
00153    while((wibsl = strchr(filename,bsl)) != 0) {
00154       wibsl[0] = '/';
00155    }
00156 
00157    {
00158       ofstream fileout(filename); /* write the command file */
00159       fileout << gnucommand.c_str();
00160       fileout << "set title \"" << title << "\"\n";
00161       fileout << "set xlabel \"" << xlabel << "\"\n";
00162       fileout << "set ylabel \"" << ylabel << "\"\n";
00163       fileout << "plot \\\n";
00164 
00165       for(i = 0; i < vCurves.size(); i++) {
00166          fileout << "\"" << filename << "." << i << "\" ";
00167          fileout << "title \"" << vCurves[i]->clabel << "\" ";
00168          fileout << "with " << curvetype[vCurves[i]->enLineType] << " ";
00169          if( i+1 < vCurves.size()){
00170             fileout << ", \\\n";
00171          }
00172       }
00173       fileout << "\n";
00174    }
00175    try
00176    {
00177       filedata = new char[strlen(filename)+3];
00178    }
00179    catch(bad_alloc & e)
00180    {
00181       cerr << "Plot2d::gnuplot:: new ran out of memory" << endl;
00182    }
00183    strcpy(filedata,filename);
00184    strcat(filedata,".");
00185    strl = strlen(filedata);
00186 
00187    for(i = 0; i < vCurves.size(); i++)  /* write the data files */
00188    {
00189       sprintf(&filedata[strl],"%d",i);
00190       ofstream fileout(filedata);
00191 
00192 //#ifndef _MSC_VER // MSVC++ chokes on the next line !
00193        // fileout << curves[i].xy;
00194 //#else
00195       unsigned int vSize = vCurves[i]->vdX.size();
00196       for (unsigned int j = 0; j < vSize; ++j)
00197       {
00198          fileout << vCurves[i]->vdX[j] << " " << vCurves[i]->vdY[j] << endl;
00199       }
00200 
00201 /*
00202         for(int j = 1; j <= curves[i].xy.Nrows(); j++) {
00203             for(int k = 1; k <= curves[i].xy.Ncols(); k++) {
00204                 fileout << curves[i].xy(j,k) << " ";
00205             }
00206             fileout << "\n";
00207         }
00208 */
00209 //#endif
00210    }
00211    /* all command and data files are ready for the call to gnuplot */
00212 #if defined(__WIN32__) || defined(_WIN32) || defined(__NT__) || defined(__CYGWIN__) || defined(__MINGW32__)
00213    /* Windows 95/98/NT/2000 etc */
00214    char c[L_tmpnam+15];
00215    char *d;
00216    HWND hwndm, hwnd;
00217    if (WinExec(GNUPLOT, SW_SHOWNORMAL) <= 32) { /* start gnuplot */
00218       /* failed */
00219       cout << "Cannot find the gnuplot application\n";
00220       cout << "Press Enter to continue" << endl;
00221       getchar();
00222       remove(filename); /* clean up the files and return */
00223       for(i = 0; i < vCurves.size(); i++) {
00224          sprintf(&filedata[strl],"%d",i);
00225          remove(filedata);
00226       }
00227       delete filedata;
00228       return;
00229    } else { /* succeed */
00230       /* get gnuplot main window handle */
00231       hwndm = FindWindow((LPSTR) 0, (LPSTR) "gnuplot");
00232    }
00233    hwnd= GetWindow(hwndm, GW_CHILD); /* get gnuplot command area handle */
00234    if(hwnd == 0) cout << "OUPS!!!\n"; /* something wrong happened */
00235    sprintf(c,"load \"%s\" \n",filename); /* load command for the plot */
00236 
00237    d = c;
00238    while(*d != '\0') { /* sending the command through windows messages */
00239       SendMessage(hwnd,WM_CHAR,*d,1L);
00240       d++;
00241    }
00242    cout << "Press Enter to continue..." << endl;
00243    getchar();
00244 #else      /*  using a pipe under Unix */
00245    FILE *command;
00246 
00247    command = popen(GNUPLOT,"w");
00248    fprintf(command,"load \"%s\"\n",filename); fflush(command);
00249    fprintf(stderr,"Press Enter to continue...\n"); fflush(stderr);
00250    getchar();
00251    pclose(command);
00252 #endif
00253 
00254 
00255   remove(filename);
00256   for(i = 0; i < vCurves.size(); i++) {
00257     sprintf(&filedata[strl],"%d",i);
00258     remove(filedata);
00259   }
00260   delete filedata;
00261 }
00262 
00263 
00264 void Plot2d::addcurve(const Matrix & data, const string & label, LineType_en enLineType)
00266 {
00267     vector<double> x;
00268     vector<double> y;
00269 
00270     for(int j = 1; j <= data.Nrows(); j++) 
00271     {
00272         x.push_back(data(j,1));
00273         y.push_back(data(j,2));
00274     }
00275 
00276     try
00277     {
00278         GNUcurve *pCurve = new GNUcurve(x, y, label, enLineType);
00279         vCurves.push_back(PSHR_Curve(pCurve));
00280     }
00281     catch (bad_alloc & e)
00282     {
00283     }
00284 }
00285 
00286 void Plot2d::addcommand(const string & gcom)
00288 {
00289    gnucommand += gcom;
00290 }
00291 
00292 void Plot2d::settitle(const string & t)
00294 {
00295    title = t;
00296 }
00297 
00298 void Plot2d::setxlabel(const string & t)
00300 {
00301    xlabel = t;
00302 }
00303 
00304 void Plot2d::setylabel(const string & t)
00306 {
00307    ylabel = t;
00308 }
00309 
00310 void Plot2d::dump(void)
00312 {
00313    cout << "gnuplot commands:\n" << gnucommand.c_str();
00314    cout << "Plot title: " << title.c_str() << "\n";
00315    cout << "X label:    " << xlabel.c_str() << "\n";
00316    cout << "Y label:    " << ylabel.c_str() << "\n";
00317 
00318    for (unsigned int i = 0; i < vCurves.size(); ++i) 
00319     {
00320       cout << "\nCurve #" << i << "\n";
00321       vCurves[i]->dump();
00322    }
00323 }
00324 
00325 
00326 void Plot3d::gnuplot(const Matrix & xyz)
00328 {
00329     if (xyz.Ncols() != 3*xyz.Nrows())
00330     {
00331         cerr << "Plot3d::gnuplot: wrong size of xyz data matrix." << endl;
00332         return;
00333     }
00334 
00335    int strl;
00336 #if defined(__BCPLUSPLUS__) || defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__)
00337    char filename[L_tmpnam];
00338 #else
00339    char filename[] = "tmpfileXXXXXX";
00340 #endif
00341    char * filedata=0;
00342    char * wibsl;
00343    char bsl = '\\';
00344 
00345 #if defined(__BCPLUSPLUS__) || defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__)
00346    tmpnam(filename); /* generate a temporary file name */
00347 #else
00348    mkstemp(filename);
00349 #endif
00350 
00351    while((wibsl = strchr(filename,bsl)) != 0) {
00352       wibsl[0] = '/';
00353    }
00354    {
00355        ofstream fileout(filename); // write the command file 
00356        fileout << "set title \"" << title << "\"\n";
00357        fileout << "set xlabel \"" << xlabel << "\"\n";
00358        fileout << "set ylabel \"" << ylabel << "\"\n";
00359        fileout << "set zlabel \"" << zlabel << "\"\n";
00360        fileout << "splot \\\n";   
00361        fileout << "\"" << filename << "." << 0 << "\" ";
00362        fileout << "title \"" << "" << "\" ";
00363        fileout << "with " << "linespoints" << " ";
00364    }
00365    
00366    try
00367    {
00368       filedata = new char[strlen(filename)+3];
00369    }
00370    catch(bad_alloc & e)
00371    {
00372       cerr << "Plot3d::gnuplot:: new ran out of memory" << endl;
00373    }
00374    strcpy(filedata,filename);
00375    strcat(filedata,".");
00376    strl = strlen(filedata);
00377 
00378    sprintf(&filedata[strl],"%d",0);
00379    ofstream fileout(filedata);
00380 
00381    for(int j = 0; j < 3*xyz.Nrows(); j+=3)
00382    {
00383        fileout << xyz.SubMatrix(1, xyz.Nrows(), j+1, j+3);
00384        fileout << " " << endl;
00385    }
00386 
00387 #if defined(__WIN32__) || defined(_WIN32) || defined(__NT__) || defined(__CYGWIN__) || defined(__MINGW32__)
00388    /* Windows 95/98/NT/2000 etc */
00389    char c[L_tmpnam+15];
00390    char *d;
00391    HWND hwndm, hwnd;
00392    if (WinExec(GNUPLOT, SW_SHOWNORMAL) <= 32) { /* start gnuplot */
00393       /* failed */
00394       cout << "Cannot find the gnuplot application\n";
00395       cout << "Press Enter to continue" << endl;
00396       getchar();
00397       remove(filename); /* clean up the files and return */
00398       remove(filedata);
00399       delete filedata;
00400       return;
00401    } else { /* succeed */
00402       /* get gnuplot main window handle */
00403       hwndm = FindWindow((LPSTR) 0, (LPSTR) "gnuplot");
00404    }
00405    hwnd= GetWindow(hwndm, GW_CHILD); /* get gnuplot command area handle */
00406    if(hwnd == 0) cout << "OUPS!!!\n"; /* something wrong happened */
00407    sprintf(c,"load \"%s\" \n",filename); /* load command for the plot */
00408 
00409 #ifdef __GNUG__        /* Cygnus Gnu C++ for win32*/
00410    char ccygnus[] = "cd \"c:\"\n"; /* this string should reflect
00411                                       the drive used to mount / 
00412                                       where /tmp is located */
00413    d = ccygnus;
00414    while(*d != '\0') { /* sending the command through windows messages */
00415       SendMessage(hwnd,WM_CHAR,*d,1L);
00416       d++;
00417    }
00418 #endif
00419    d = c;
00420    while(*d != '\0') { /* sending the command through windows messages */
00421       SendMessage(hwnd,WM_CHAR,*d,1L);
00422       d++;
00423    }
00424    cout << "Press Enter to continue..." << endl;
00425    getchar();
00426 #else      /*  using a pipe under Unix */
00427    FILE *command;
00428    command = popen(GNUPLOT,"w");
00429    fprintf(command,"load \"%s\"\n",filename); fflush(command);
00430    fprintf(stderr,"Press Enter to continue...\n"); fflush(stderr);
00431    getchar();
00432    pclose(command);
00433 #endif
00434 
00435    remove(filename);
00436    sprintf(&filedata[strl],"%d",0);
00437    remove(filedata);
00438 
00439    delete filedata;
00440 }
00441 
00442 void Plot3d::settitle(const string & t)
00444 {
00445    title = t;
00446 }
00447 
00448 void Plot3d::setxlabel(const string & t)
00450 {
00451    xlabel = t;
00452 }
00453 
00454 void Plot3d::setylabel(const string & t)
00456 {
00457    ylabel = t;
00458 }
00459 
00460 void Plot3d::setzlabel(const string & t)
00462 {
00463    zlabel = t;
00464 }
00465 
00466 // ---------------------------------------------------------------------------------------
00467 
00468 IO_matrix_file::IO_matrix_file(const string & filename_)
00470 {
00471    filename = filename_;
00472    position_read = 0;
00473    nb_iterations_write = 0;
00474    nb_iterations_read = 0;
00475    nb_element = 0;
00476 }
00477 
00478 
00479 short IO_matrix_file::write(const vector<Matrix> & data)
00481 {
00482    vector<string> title;
00483    string tmp;
00484    for(unsigned int i = 1; i <= data.size(); i++)
00485    {
00486       tmp = "data#";  // Provide a default name
00487       tmp += i;
00488       title.push_back(tmp);
00489    }
00490 
00491    return IO_matrix_file::write(data, title);
00492 }
00493 
00494 
00495 short IO_matrix_file::write(const vector<Matrix> & data, const vector<string> & title)
00501 {
00502    /*
00503    If the file "filename" does not exist yet, created it. The first lines of the file
00504    contain the following informations (for each line):
00505       1) the number of iterations.
00506       2) second line is empty.
00507       3) the number(n) of matrix/iteration
00508       4) number of rows and number of columns of Matrix 1.
00509       5)  "                                         "   i.
00510       6)  "                                         "   n.
00511       7)---------------------------------   (end of header file)
00512 
00513    example of header file;
00514    1120
00515        
00516    2
00517    6 1 titre#1
00518    6 1 titre#1
00519    ---------------------------------
00520    */
00521    const char *ptr_filename = filename.c_str(); // transform string to *char
00522    if(data.size())
00523    {
00524       if(!nb_iterations_write)
00525       {
00526          struct stat buf;
00527          if(stat(ptr_filename, &buf) )  // File does not exist
00528          {
00529             ofstream outvecfile(ptr_filename);
00530             if(outvecfile)
00531             {
00532                outvecfile << "nd_iterations " << nb_iterations_write
00533                << "        " << endl;
00534                outvecfile << "nb_vector " << data.size() << endl;
00535                for(unsigned int i = 0; i < data.size(); i++)
00536                   outvecfile << "nb_rows " << data[i].Nrows() << "  "
00537                   << "nb_cols " << data[i].Ncols() <<  "  "
00538                   << title[i] << endl;
00539                outvecfile << "---------------------------------\n";
00540             }
00541             else
00542             {
00543                cerr << "IO_matrix_file::write: can not open file " << filename.c_str() << endl;
00544                return IO_COULD_NOT_OPEN_FILE;
00545             }
00546          }
00547          else
00548          {
00549             ifstream invecfile(ptr_filename, ios::in);
00550             if(invecfile)
00551                invecfile >> nb_iterations_write;
00552          }
00553       }
00554 
00555       ofstream outvecfile(ptr_filename, ios::in | ios::out);
00556       if(outvecfile)
00557       {
00558          outvecfile.seekp(strlen("nb_iterations ")); // position at start of fileObject
00559          outvecfile << ++nb_iterations_write << endl;
00560          outvecfile.seekp(0, std::ios::end); // position at end of fileObject
00561          for(unsigned int i = 0; i < data.size(); i++)
00562          {
00563             for(int j = 1; j <= data[i].Nrows(); j++) {
00564                for(int k = 1; k <= data[i].Ncols(); k++) {
00565                   outvecfile << data[i](j,k) << " ";
00566                }
00567             }
00568          }
00569          outvecfile << endl;
00570          outvecfile << endl;
00571       }
00572       else
00573       {
00574          cerr << "IO_matrix_file::write: can not open file " << filename.c_str() << endl;
00575          return IO_COULD_NOT_OPEN_FILE;
00576       }
00577    }
00578    else
00579    {
00580       cerr << "IO_matrix_file::write: vector data is empty" << endl;
00581       return IO_DATA_EMPTY;
00582    }
00583 
00584    return 0;
00585 }
00586 
00587 
00588 short IO_matrix_file::read(vector<Matrix> & data)
00590 {
00591    vector<string> data_title;
00592    string tmp;
00593    for(unsigned int i = 1; i <= data.size(); i++)
00594    {
00595       tmp = "data#";  // Provide a default name
00596       tmp += i;
00597       data_title.push_back(tmp);
00598    }
00599 
00600    return IO_matrix_file::read(data, data_title);
00601 }
00602 
00603 
00604 short IO_matrix_file::read(vector<Matrix> & data, vector<string> & data_title)
00606 {
00607    /*
00608    If the file "filename does not exist yet, created it and fill the first line
00609    with the number of rows and columns for each element of "data".
00610    ex: 6x1;3x1;3x3;
00611    This line indidate that data has 3 elements Matrix. The first one has 6 rows and
00612    1 columns, the second one has 3 rows and 1 columns ...
00613    */
00614    static const char *ptr_filename = filename.c_str(); // transform string to *char
00615    ifstream invecfile(ptr_filename, ios::in);
00616 
00617    if(invecfile)
00618    {
00619       if(!position_read)
00620       {
00621          string temp;
00622          int nbcol = 0, nbrow = 0;
00623          invecfile >> temp >> nb_iterations_read;
00624          invecfile >> temp >> nb_element;
00625          Matrix mat_tmp;
00626          data.clear();
00627          data_title.clear();
00628          for(int i = 1; i <= nb_element; i++)
00629          {
00630             data.push_back(mat_tmp);
00631             data_title.push_back(temp);
00632          }
00633          for(int j = 0; j < nb_element; j++)
00634          {
00635             invecfile >> temp >> nbrow;
00636             invecfile >> temp >> nbcol;
00637             getline(invecfile,data_title[j]);
00638             if( (nbrow != data[j].Nrows()) ||
00639                   (nbcol != data[j].Ncols()) )
00640                data[j] = Matrix(nbrow, nbcol);
00641          }
00642          invecfile >> temp;  //------------------------
00643          position_read = invecfile.tellg();
00644       }
00645 
00646       if(position_read > 0)
00647       {
00648          invecfile.seekg(position_read); // position for reading
00649          for(unsigned int ii = 0; ii < data.size(); ii++)
00650             for(int jj = 1; jj <= data[ii].Nrows(); jj++)
00651                for(int kk = 1; kk <= data[ii].Ncols(); kk++)
00652                   invecfile >> data[ii](jj,kk);
00653 
00654          position_read = invecfile.tellg(); // position for next reading
00655       }
00656    }
00657    else
00658    {
00659       cerr << "IO_matrix_file::read, can not open file" << filename.c_str() << endl;
00660       return IO_COULD_NOT_OPEN_FILE;
00661    }
00662    return 0;
00663 }
00664 
00665 
00666 short IO_matrix_file::read_all(vector<Matrix> & data, vector<string> & data_title)
00676 {
00677    static const char *ptr_filename = filename.c_str(); // transform string to *char
00678    ifstream invecfile(ptr_filename, ios::in);
00679 
00680    if(invecfile)
00681    {
00682       string temp;
00683       int nbcol = 0, nbrow = 0;
00684       invecfile >> temp >> nb_iterations_read;
00685       invecfile >> temp >> nb_element;
00686 
00687       Matrix mat_tmp;
00688       data.clear();
00689       data_title.clear();
00690       for(int i = 1; i <= nb_element; i++)
00691       {
00692          data.push_back(mat_tmp);
00693          data_title.push_back(" ");
00694       }
00695 
00696       for(int j = 0; j < nb_element; j++)
00697       {
00698          invecfile >> temp >> nbrow;
00699          invecfile >> temp >> nbcol;
00700          if(nbcol >1)
00701             return IO_MISMATCH_SIZE;
00702 
00703          getline(invecfile,data_title[j]);
00704          if( (nbrow != data[j].Nrows()) ||
00705                (nbcol != data[j].Ncols()) )
00706             data[j] = Matrix(nbrow, nbcol*nb_iterations_read);
00707       }
00708       invecfile >> temp;  //---------------------------------
00709 
00710       for(int k = 1; k <= nb_iterations_read; k++)
00711          for(unsigned int ii = 0; ii < data.size(); ii++)
00712             for(int jj = 1; jj <= data[ii].Nrows(); jj++)
00713                invecfile >> data[ii](jj,k);
00714    }
00715    else
00716    {
00717       cerr << "IO_matrix_file::read_all, can not open file " << filename.c_str() << endl;
00718       return IO_COULD_NOT_OPEN_FILE;
00719    }
00720    return 0;
00721 }
00722 
00723 // ---------------------------------------------------------------------------------------
00724 
00731 Plot_file::Plot_file(const string & filename) : IO_matrix_file(filename), Plot2d()
00732 {
00733    //clear the buffers in case of error while reading the file
00734    if(read_all(data_from_file, data_title))
00735    {
00736       data_from_file.clear();
00737       data_title.clear();
00738       cerr << "Plot_file::Plot_file: problem in reading file " << filename.c_str() << "." << endl;
00739    }
00740 }
00741 
00742 
00743 short Plot_file::graph(const string & title_graph, const string & label, const short x,
00744                        const short y, const short x_start, const short y_start,
00745                        const short y_end)
00747 {
00748    if(data_from_file.size())
00749    {
00750       if(data_from_file[x].Ncols() != data_from_file[y].Ncols())
00751       {
00752          cerr << "Plot_file::graph: number of rows of xdata and ydata does not match" << endl;
00753          return X_Y_DATA_NO_MATCH;
00754       }
00755 
00756       settitle(title_graph.c_str());
00757       setxlabel(data_title[x]);
00758       setylabel(data_title[y]);
00759 
00760       string legend;
00761       for(int i = y_start; i <= y_end; i++)
00762       {
00763          ostringstream istr;
00764          istr << label << i-y_start+1;
00765          legend = istr.str();
00766 
00767          addcurve((data_from_file[x].SubMatrix(x_start,x_start,1,data_from_file[x].Ncols())
00768                    & data_from_file[y].SubMatrix(i,i,1,data_from_file[y].Ncols())).t(),
00769                   legend, DATAPOINTS);
00770       }
00771       gnuplot();
00772       return 0;
00773    }
00774    else
00775    {
00776       cerr << "Plot_file::graph: data file buffer is empty." << endl;
00777       return PROBLEM_FILE_READING;
00778    }
00779 }
00780 
00781 // ---------------------------------------------------------------------------------------------
00782 
00783 short set_plot2d(const char *title_graph, const char *x_axis_title, const char *y_axis_title,
00784                  const char *label, LineType_en enLineType, const Matrix &xdata, const Matrix &ydata,
00785                  int start_y, int end_y)
00786 {
00787 
00788    Plot2d plotgraph;
00789    char *legend=0;
00790    try
00791    {
00792       legend = new char[strlen(label)+1];
00793    }
00794    catch(bad_alloc & e)
00795    {
00796       cerr << "set_plot2d:: new ran out of memory" << endl;
00797       return OUT_OF_MEMORY;
00798    }
00799 
00800    if(xdata.Ncols() != ydata.Ncols())
00801    {
00802       cerr << "set_plot2d:: number of rows of xdata and ydata does not match" << endl;
00803       return X_Y_DATA_NO_MATCH;
00804    }
00805 
00806    plotgraph.settitle(title_graph);
00807    plotgraph.setxlabel(x_axis_title);
00808    plotgraph.setylabel(y_axis_title);
00809 
00810    for(int i = start_y; i <= end_y; i++)
00811    {
00812       snprintf(legend, sizeof(legend), "%s%d", label, i-start_y+1);
00813 
00814 
00815       plotgraph.addcurve((xdata & ydata.SubMatrix(i,i,1,ydata.Ncols())).t(), legend, enLineType);
00816    }
00817    plotgraph.gnuplot();
00818 
00819    delete [] legend;
00820 
00821    return 0;
00822 }
00823 
00824 short set_plot2d(const char *title_graph, const char *x_axis_title, const char *y_axis_title,
00825                  const vector<char *> label, LineType_en enLineType, const Matrix &xdata, 
00826                  const Matrix &ydata, const vector<int> & data_select)
00827 {
00828    Plot2d plotgraph;
00829 
00830    plotgraph.settitle(title_graph);
00831    plotgraph.setxlabel(x_axis_title);
00832    plotgraph.setylabel(y_axis_title);
00833 
00834    if(xdata.Ncols() != ydata.Ncols())
00835    {
00836       cerr << "set_plot2d:: number of rows of xdata and ydata does not match" << endl;
00837       return X_Y_DATA_NO_MATCH;
00838    }
00839    if(data_select.size() != label.size())
00840    {
00841       cerr << "set_plot2d:: number of labels does not match" << endl;
00842       return LABELS_NBR_NO_MATCH;
00843    }
00844 
00845    for(unsigned int i = 0; i < data_select.size(); i++)
00846       plotgraph.addcurve((xdata & ydata.SubMatrix(data_select[i],data_select[i],
00847                           1,ydata.Ncols())).t(), label[i], enLineType);
00848    plotgraph.gnuplot();
00849 
00850    return 0;
00851 }
00852 
00853 
00854 short set_plot3d(const Matrix & xyz, const string & title_graph, const string & x_axis_title, 
00855                  const string & y_axis_title, const string & z_axis_title)
00856 {
00857 
00858    Plot3d plotgraph;
00859 
00860    plotgraph.settitle(title_graph);
00861    plotgraph.setxlabel(x_axis_title);
00862    plotgraph.setylabel(y_axis_title);
00863    plotgraph.setzlabel(z_axis_title);
00864    plotgraph.gnuplot(xyz);
00865 
00866    return 0;
00867 }
00868 
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kni
Author(s): Neuronics AG (see AUTHORS.txt); ROS wrapper by Martin Günther
autogenerated on Tue May 28 2013 14:52:53