Method open

LASlib/src/laswaveform13reader.cpp:81–266

}

BOOL LASwaveform13reader::open(const char* file_name, I64 start_of_waveform_data_packet_record, const LASvlr_wave_packet_descr * const * wave_packet_descr)
{
  if (file_name == 0)
  {
    laserror("file name pointer is zero");
    return FALSE;
  }

  // we need wave packet descriptors

  if (wave_packet_descr == 0)
  {
    laserror("wave packet descriptor pointer is zero");
    return FALSE;
  }

  // only array positions 1 through 255 should have a wave packet descriptor

  if (wave_packet_descr[0] != 0)
  {
    laserror("wave_packet_descr[0] with index 0 must be zero");
    return FALSE;
  }

  // check if compressed or not

  I32 i;
  compressed = FALSE;

  for (i = 1; i < 256; i++)
  {
    if (wave_packet_descr[i])
    {
      compressed = compressed || (wave_packet_descr[i]->getCompressionType() > 0);
    }
  }

  // create file name and open file

  if (start_of_waveform_data_packet_record == 0)
  {
    if (!compressed && (strstr(".wdp", file_name) || strstr(".WDP", file_name)))
    {
      file = LASfopen(file_name, "rb");
    }
    else if (compressed && (strstr(".wdz", file_name) || strstr(".WDZ", file_name)))
    {
      file = LASfopen(file_name, "rb");
    }
    else
    {
      char* file_name_temp = LASCopyString(file_name);
      I32 len = (I32)strlen(file_name_temp);
      if ((file_name_temp[len-3] == 'L') || (file_name_temp[len-3] == 'W'))
      {
        file_name_temp[len-3] = 'W';
        file_name_temp[len-2] = 'D';
        file_name_temp[len-1] = (compressed ? 'Z' : 'P');