C++ Table::Records方法代码示例

/** 
 * @brief Provides direct reading in of the field data from the BLOB
 * 
 * This method is called when the data stored in the BLOB is integer data.
 * It determines the number of rows (lines) and columns (samples) in the BLOB
 * and allocates the internal buffer required to store it.  This differs from
 * the double precision version only in the care taken when casting the data
 * to double precision.  We must properly convert special pixels from integer
 * to double precision.
 * 
 * @param [in] tbl (Table&) Reference to an ISIS Table object that contains the
 *                         field from which to extract the data.
 */
void Blobber::loadInteger(Table &tbl) {
  int nlines = tbl.Records();
  int nsamps = tbl[0][getFieldName()].Size();
  BlobBuf pixels(nlines, nsamps);
  for (int i = 0 ; i < nlines ; i++) {
    vector<int> d = tbl[i][getFieldName()];
    for (unsigned int j = 0 ; j < d.size(); j++) {
      pixels[i][j] = int2ToDouble(d[j]);
    }
  }
  _buf = pixels;
}

int main(int argc, char *argv[]) {
  Isis::Preference::Preferences(true);
  QString inputFile = "data/VIR_IR_1A_1_332974737_1_HK.LBL";
  if (--argc == 1) { inputFile = argv[1]; }

  cout << "\n\nTesting ImportPdsTable class using file " << inputFile << "\n";

  ImportPdsTable myTable(inputFile);
  cout << "\n\nList of Columns found - Total: " << myTable.columns() << "\n";
  QStringList kfiles = myTable.getColumnNames();
  cout << kfiles.join("\n");

  cout << "\n\nNow without Name Conversion: \n";
  kfiles = myTable.getColumnNames(false);
  cout << kfiles.join("\n") << endl;

  // Update/correct column types
  myTable.setType("ShutterStatus", "CHARACTER");
  myTable.setType("ChannelId", "CHARACTER");
  myTable.setType("CompressionMode", "CHARACTER");
  myTable.setType("SpectralRange", "CHARACTER");
  myTable.setType("CurrentMode", "CHARACTER");
  myTable.setType("SubCurrentMode", "CHARACTER");
  myTable.setType("IrExpo", "DOUBLE");
  myTable.setType("IrTemp", "DOUBLE");
  myTable.setType("CcdExpo", "DOUBLE");
  myTable.setType("CcdTemp", "DOUBLE");
  myTable.setType("MirrorSin", "DOUBLE");
  myTable.setType("Mirror", "DOUBLE");
  myTable.setType("SpectTemp", "DOUBLE");
  myTable.setType("TeleTemp", "DOUBLE");
  myTable.setType("COLD TIP TEMP", "DOUBLE");
  myTable.setType("RADIATOR TEMP", "DOUBLE");
  myTable.setType("SU MOTOR CURR", "DOUBLE");
  myTable.setType("LEDGE TEMP", "DOUBLE");
  myTable.setType("FRAME COUNT", "CHARACTER");

  // Create a table from the input
  cout << "Getting ISIS Table...\n";
  Table newTable = myTable.importTable("VIR_DATA");
  for (int i = 0; i < newTable[0].Fields(); i++) {
    cout << newTable[0][i].name() << "\t";
  }
  cout << endl;

  // this test was commented out since the output is not what was expected.
  // See mantis ticket
  // 
  //??? Table newTable2 = myTable.importTable("Apid,PacketsLength", "VIR_DATA_2");
  //??? for (int i = 0; i < newTable2[0].Fields(); i++) {
  //???   cout << newTable[0][i].name() << "\t";
  //??? }
  //??? cout << endl;//??? add mantis ticket -- appears to be failing
  //??? 
  //??? vector<string> cols;
  //??? cols.push_back("Apid");
  //??? cols.push_back("PacketsLength");
  //??? Table newTable3 = myTable.importTable(cols, "VIR_DATA_2");
  //??? for (int i = 0; i < newTable3[0].Fields(); i++) {
  //???   cout << newTable[0][i].name() << "\t";
  //??? }
  //??? cout << endl;

  // The following tests were added when the class was expanded to import binary
  // PDS tables also...

  QString pdsTableDir = "data/";
  QString pdsLabelFile = "";
  QString pdsTableFile = "";

  cout << "\n\n\nImport PDS table from PDS table exported as MSB...\n";
  pdsLabelFile = pdsTableDir + "msb_pds_binary_table.lbl";
  // TEST: Read the table file name from the labels
  ImportPdsTable pdsMsbTable(pdsLabelFile, pdsTableFile, "EXPORTED_ISIS_TABLE");
//  Table isisTableFromMsb = pdsMsbTable.importFromBinaryPds();
  Table isisTableFromMsb = pdsMsbTable.importTable("ReimportedMSB");
  // print the table
  cout << isisTableFromMsb.Name() << endl;
  cout << isisTableFromMsb[0][0].name() << "\t";
  cout << isisTableFromMsb[0][1].name() << "\t";
  cout << isisTableFromMsb[0][2].name() << "\t";
  cout << isisTableFromMsb[0][3].name() << "\n";
  for (int i = 0; i < isisTableFromMsb.Records(); i++) {
    cout << toString((double) isisTableFromMsb[i][0]) << "\t\t\t";
    cout << toString((int)    isisTableFromMsb[i][1]) << "\t\t\t\t";
    cout << QString(          isisTableFromMsb[i][2]) << "\t\t\t";
    cout << toString((float)  isisTableFromMsb[i][3]) << "\n";
  }

  cout << "\n\n\nImport PDS table from PDS table exported as LSB...\n";
  pdsLabelFile = pdsTableDir + "lsb_pds_binary_table.lbl";
  pdsTableFile = pdsTableDir + "lsb_pds_binary_table.dat";
  // TEST: Use default constructor and load() method - default table name is TABLE
  //       The next 2 lines are equivalent to calling 
  //       ImportPdsTable pdsLsbTable(pdsLabelFile, pdsTableFile, "TABLE");
  ImportPdsTable pdsLsbTable;
  pdsLsbTable.load(pdsLabelFile, pdsTableFile);
//  Table isisTableFromLsb = pdsLsbTable.importFromBinaryPds();
  Table isisTableFromLsb = pdsLsbTable.importTable("ReimportedLSB");
  // print the table
//.........这里部分代码省略.........