Method open

LASlib/src/lasreader_bil.cpp:43–359

#endif

BOOL LASreaderBIL::open(const CHAR* file_name)
{
  if (file_name == 0)
  {
    laserror("file name pointer is zero");
    return FALSE;
  }

  // clean header

  clean();

  // read the mandatory hdr file

  if (!read_hdr_file(file_name))
  {
    laserror("reading the *.hdr file for '%s'", file_name);
    return FALSE;
  }

  // read the optional bwl file

  if (!read_blw_file(file_name))
  {
    LASMessage(LAS_WARNING, "reading the *.blw file for '%s'", file_name);
  }

  // check that we have all the needed info

  if (xdim <= 0)
  {
    xdim = 1;
    LASMessage(LAS_WARNING, "xdim was not set. setting to %g", xdim);
  }

  if (ydim <= 0)
  {
    ydim = 1;
    LASMessage(LAS_WARNING, "ydim was not set. setting to %g", ydim);
  }

  if (ulxcenter == F64_MAX)
  {
    ulxcenter = 0.5*xdim;
    LASMessage(LAS_WARNING, "ulxcenter was not set. setting to %g", ulxcenter);
  }

  if (ulycenter == F64_MAX)
  {
    ulycenter = (-0.5+nrows)*ydim;
    LASMessage(LAS_WARNING, "ulycenter was not set. setting to %g", ulycenter);
  }

  // open the BIL file
  file = LASfopen(file_name, "rb");
  if (file == 0)
  {
    laserror("cannot open file '%s'", file_name);