Method read

src/lasinterval.cpp:560–642

}

BOOL LASinterval::read(ByteStreamIn* stream)
{
  char signature[4];
  try { stream->getBytes((U8*)signature, 4); } catch (...)
  {
    laserror("(LASinterval): reading signature");
    return FALSE;
  }
  if (strncmp(signature, "LASV", 4) != 0)
  {
    laserror("(LASinterval): wrong signature %4s instead of 'LASV'", signature);
    return FALSE;
  }
  U32 version;
  try { stream->get32bitsLE((U8*)&version); } catch (...)
  {
    laserror("(LASinterval): reading version");
    return FALSE;
  }
  // read number of cells
  U32 number_cells;
  try { stream->get32bitsLE((U8*)&number_cells); } catch (...)
  {
    laserror("(LASinterval): reading number of cells");
    return FALSE;
  }
  // loop over all cells
  while (number_cells)
  {
    // read index of cell
    I32 cell_index;
    try { stream->get32bitsLE((U8*)&cell_index); } catch (...)
    {
      laserror("(LASinterval): reading cell index");
      return FALSE;
    }
    // create cell and insert into hash
    LASintervalStartCell* start_cell = new LASintervalStartCell();
    ((my_cell_hash*)cells)->insert(my_cell_hash::value_type(cell_index, start_cell));
    LASintervalCell* cell = start_cell;
    // read number of intervals in cell
    U32 number_intervals;
    try { stream->get32bitsLE((U8*)&number_intervals); } catch (...)
    {
      laserror("(LASinterval): reading number of intervals in cell");
      return FALSE;
    }
    // read number of points in cell
    U32 number_points;
    try { stream->get32bitsLE((U8*)&number_points); } catch (...)
    {
      laserror("(LASinterval): reading number of points in cell");
      return FALSE;
    }
    start_cell->full = number_points;
    start_cell->total = 0;
    while (number_intervals)
    {