/* This function creates a binary version of the Jgd2k file if it doesn't
exist, or if the date on the binary file is older than or equal to
that of the primary text file. Note, that this function uses the path name
in the provided object, and modifies it to point to the binary file which
is then created if necessary.
This function is implemented as records in the ASCII text file may not be
of fixed length, there can be a million of them, and there is no guarantee
that the records in the text file will be properly sorted. The binary
file enables random access to the data file for decent performance without
eating up 12MB of RAM. */
int CSmakeBinaryJgd2kFile (struct cs_Japan_* thisPtr)
{
extern char cs_ExtsepC;
extern char csErrnam [];
extern double cs_Zero;
int st;
cs_Time_ aTime, bTime;
size_t wrCnt;
char *cp1, *cp2;
csFILE *aStrm, *bStrm;
long32_t tempL;
long32_t dblFrmt;
ulong32_t meshCode;
double lngTmp, latTmp;
double mesh_ll [2];
char lineBufr [128];
char binaryPath [MAXPATH];
struct csJgd2kGridRecord_ gridRec;
struct csJgd2kGridRecord_ minRec;
struct csJgd2kGridRecord_ maxRec;
/* We will write two records to the file with bogus mesh codes. These
records will carry the minimum (i.e. southwest) longitude and latitude
and the maximum (i.e. northeast) longitude and latitude of the data in
the file. This is an attempt to make the file format something which
does not inherently imply applicability to Japanese geography.
The bogus mesh codes were devised such that the min/max will be the
first two records in the file, thus easily accessible. For these two
special records, the deltaLng and DeltaLat fields carry absolute
longitude and latitude in seconds. */
minRec.meshCode = 1UL;
minRec.deltaLat = (long32_t)( 90 * 3600);
minRec.deltaLng = (long32_t)(180 * 3600);
maxRec.meshCode = 2UL;
maxRec.deltaLat = (long32_t)( -90 * 3600);
maxRec.deltaLng = (long32_t)(-180 * 3600);
/* Prepare for an error of some sort. */
aStrm = bStrm = NULL;
lngTmp = latTmp = cs_Zero;
/* Manufacture the name of the binary file. */
CS_stncp (binaryPath,thisPtr->filePath,sizeof (binaryPath));
cp1 = strrchr (binaryPath,cs_ExtsepC);
if (cp1 == NULL)
{
CS_stncp (csErrnam,thisPtr->filePath,MAXPATH);
CS_erpt (cs_DTC_FILE);
goto error;
}
CS_stcpy ((cp1 + 1),"_par");
bTime = CS_fileModTime (binaryPath);
/* Build a new binary file only if it doesn't exist yet. */
if (0 == bTime)
{
/* Determine the last modification time for the two files. Zero time value
means the file does not exist. */
aTime = CS_fileModTime (thisPtr->filePath);
if (aTime == 0)
{
/* The indicated source file does not exist, not uncommon among the
error conditions possible. */
CS_stncp (csErrnam,thisPtr->filePath,MAXPATH);
CS_erpt (cs_DTC_FILE);
goto error;
}
/* Here to create a, possibly new, binary version of the Jgd2k file,
typically named "TKY2JGD.par". To follow the general design
theme, we assume there can be several files, and there is no fixed
name for any of the files. At this particular point, of course,
we're only dealing with one file, the file whose name was provided.
We write one csJgd2kGridRecord structure for each line of text that
we read. Of course, we need to skip the first two lines (usually)
in the file as they are of the mets-data variety. */
aStrm = CS_fopen (thisPtr->filePath,_STRM_TXTRD);
if (aStrm == NULL)
{
/* This could happen if the file exists, but for some reason we
are denied permission to read the file.*/
CS_stncp (csErrnam,thisPtr->filePath,MAXPATH);
CS_erpt (cs_DTC_FILE);
goto error;
}
/* The mode of the following open will truncate any existing file, and
create a new binary file if necessary. */
bStrm = CS_fopen (binaryPath,_STRM_BINWR);
if (bStrm == NULL)
{
CS_stncp (csErrnam,thisPtr->filePath,MAXPATH);
CS_erpt (cs_FL_OPEN);
goto error;
}
/* If we're still here, we can copy the file, converting it to binary
form as we do. While doing so, we'll convert each mesh code to
latitude and longitude form and accumulate an estimate of the
coverage of the file. */
while (CS_fgets (lineBufr,sizeof (lineBufr),aStrm) != NULL)
{
/* Parse the information is in a record. */
meshCode = CS_strtoul (lineBufr,&cp1,10);
/* The first two lines of the files we've seen contain labels and
other data. We use the following to filter these out. This may
need to be improved should new versions of the file include some
other form of header. */
if (meshCode == 0 || meshCode == 0xffffffffUL) continue;
/* Accumulate a bounding box (or minimum and maximum as us old
farts used to call it) so we have a rough estimate of the
coverage of the file. */
CSjpnMeshCodeToLl (mesh_ll,meshCode);
if (mesh_ll [LNG] < -180.0 || mesh_ll [LNG] > 180.0 ||
mesh_ll [LAT] < -90.0 || mesh_ll [LAT] > 90.0)
{
/* Bogus mesh code. We could consider this to be meta-data
that slipped through the code immediately above, or that
the file is invalid. For now, we consider it to be the
latter: The file is not a validly formatted data file. */
CS_erpt (cs_INV_FILE);
goto error;
}
tempL = (long32_t)(mesh_ll [LNG] * 3600 + 0.01);
if (tempL < minRec.deltaLng) minRec.deltaLng = tempL;
if (tempL > maxRec.deltaLng) maxRec.deltaLng = tempL;
tempL = (long32_t)(mesh_ll [LAT] * 3600 + 0.01);
if (tempL < minRec.deltaLat) minRec.deltaLat = tempL;
if (tempL > maxRec.deltaLat) maxRec.deltaLat = tempL;
/* Separate the two data values. We avoid strtod as it is
locale dependent and the data file is not. */
while (*cp1 == ' ') cp1++;
cp2 = strchr (cp1,' ');
*cp2++ = '\0';
while (*cp2 == ' ') cp2++;
dblFrmt = CSatof (&latTmp,cp1,'.',',',':');
if (dblFrmt >= 0)
{
dblFrmt = CSatof (&lngTmp,cp2,'.',',',':');
}
if (dblFrmt < 0)
{
CS_erpt (cs_INV_FILE);
goto error;
}
/* Build a new record in the array. */
gridRec.meshCode = meshCode;
/* NTO 30 Oct 2008, Trac # 13
The following was necessiatated by Linux. It appears that on the
Linux platform (or some of them, anyway), the rounding of doubles
(especially negative ones) is different than what you will see on
WIN32 platforms. Which one is correct is of no concern to me,
only that they are different. */
latTmp *= 100000.0;
latTmp += (latTmp >= 0.0) ? 0.1 : -0.1;
lngTmp *= 100000.0;
lngTmp += (lngTmp >= 0.0) ? 0.1 : -0.1;
/* End Linux fix, Trac #13 */
gridRec.deltaLat = (long32_t)(latTmp);
gridRec.deltaLng = (long32_t)(lngTmp);
wrCnt = CS_fwrite (&gridRec,sizeof (gridRec),1,bStrm);
if (wrCnt != 1)
{
CS_erpt (cs_IOERR);
goto error;
}
}
/* If we're still here, we write minRec and maxRec to the file so we
have a record of the coverage of the file. */
wrCnt = CS_fwrite (&minRec,sizeof (minRec),1,bStrm);
if (wrCnt != 1)
{
CS_erpt (cs_IOERR);
goto error;
}
wrCnt = CS_fwrite (&maxRec,sizeof (maxRec),1,bStrm);
if (wrCnt != 1)
{
CS_erpt (cs_IOERR);
goto error;
}
/* Close the file streams. We're going to open the binary file back
up immediately, but have found this redundant close and open to
produce more reliable operation cross platforms. */
CS_fclose (aStrm);
aStrm = NULL;
st = CS_fclose (bStrm);
bStrm = NULL;
/* OK, we need to sort the file by mesh codes so we can use a binary
search algorithm on it. This should also cause the min/max records
to end up being the first two records in the file. This is very
convenient.
Note that the position of any one record in the file with respect
to any other record in the file is immaterial in this file format.
Thus, we can reorder the file any way we want to. The original
code was written in the Windows 95 era, so the current scheme may
look rather dumb. Nevertheless, it works and I have no motivation
to fix it. */
bStrm = CS_fopen (binaryPath,_STRM_BINUP);
if (bStrm == NULL)
{
CS_stncp (csErrnam,binaryPath,MAXPATH);
CS_erpt (cs_FL_OPEN);
goto error;
}
st = CS_ips (bStrm,sizeof (gridRec),0L,(CMPFUNC_CAST)CScompareJgd2kGridRecord);
CS_fclose (bStrm);
bStrm = NULL;
if (st < 0) goto error;
if (st == 1) st = csGRIDI_ST_OK; /* CS_ips returns 1 for success, for historical reasons. */
/* OK, now we're really done. */
}
/* If all that was done successfully, we change the name of
the file and return success. */
CS_stncp (thisPtr->filePath,binaryPath,sizeof (thisPtr->filePath));
return csGRIDI_ST_OK;
error:
if (aStrm != NULL)
{
CS_fclose (aStrm);
aStrm = NULL;
}
if (bStrm != NULL)
{
CS_fclose (bStrm);
bStrm = NULL;
}
return csGRIDI_ST_SYSTEM;
}
int EXP_LVL9 CSdtcomp ( Const char *inpt,
Const char *outp,
int flags,
Const char *elipsoid,
int (*err_func)(char *mesg)
)
{
int st;
int test;
int demo;
int warn;
int dummy;
int cancel;
int err_cnt;
int crypt;
size_t rdCnt;
size_t wrCnt;
char *cp;
csFILE *inStrm;
csFILE *elStrm;
csFILE *outStrm;
struct cs_DtcmpT_ *tp;
struct cs_DtTypeT_ *typPtr;
cs_magic_t magic;
char err_seg [18];
char buff [128];
char err_msg [128];
char last_name [48];
__ALIGNMENT__2 /* For some versions of Sun compiler. */
struct cs_Dtdef_ dtdef;
crypt = ((flags & cs_CMPLR_CRYPT) != 0);
demo = ((flags & cs_CMPLR_DEMO) != 0);
test = ((flags & cs_CMPLR_TEST) != 0);
warn = ((flags & cs_CMPLR_WARN) != 0);
/* Open the source file. */
inStrm = CS_fopen (inpt,_STRM_TXTRD);
if (inStrm == NULL)
{
sprintf (err_msg,"Couldn't open %s for input.",inpt);
cancel = (*err_func)(err_msg);
return (1);
}
/* Open the output file and write the magic number. BINRW mode
creates a new file with read and write access. */
outStrm = CS_fopen (outp,_STRM_BINRW);
if (outStrm == NULL)
{
sprintf (err_msg,"Couldn't open %s for output.",outp);
cancel = (*err_func)(err_msg);
CS_fclose (inStrm);
return (1);
}
if (demo) magic = cs_DTDEF_MAGIC;
else magic = cs_DTDEF_MAGIC;
CS_bswap (&magic,"l");
wrCnt = CS_fwrite ((char *)&magic,1,sizeof (magic),outStrm);
if (wrCnt != sizeof (magic))
{
sprintf (err_msg,"Failure detected during write to %s.",outp);
cancel = (*err_func)(err_msg);
CS_fclose (outStrm);
CS_remove (outp); /*lint !e534 */
CS_fclose (inStrm);
return (1);
}
/* If we have been given an ellipsoid file name, we open it now. */
if (elipsoid != NULL && *elipsoid != '\0')
{
elStrm = CS_fopen (elipsoid,_STRM_BINRD);
if (elStrm == NULL)
{
sprintf (err_msg,"Couldn't open %s as an Ellipsoid Dictionary.",elipsoid);
cancel = (*err_func)(err_msg);
CS_fclose (inStrm);
return (1);
}
rdCnt = CS_fread (&magic,1,sizeof (magic),elStrm);
CS_bswap (&magic,"l");
if (rdCnt != sizeof (magic) ||
(demo && magic != cs_ELDEF_MAGIC) ||
(!demo && magic != cs_ELDEF_MAGIC))
{
sprintf (err_msg,"%s is not an Elipsoid Dictionary file.",elipsoid);
cancel = (*err_func)(err_msg);
CS_fclose (inStrm);
CS_fclose (elStrm);
return (1);
}
}
else
{
elStrm = NULL;
}
/* Process each line in the source file. */
line_nbr = 0;
err_cnt = 0;
cancel = FALSE;
memset (&dtdef,'\0',sizeof (dtdef));
dtdef.delta_X = no_value;
dtdef.delta_Y = no_value;
dtdef.delta_Z = no_value;
dtdef.rot_X = no_value;
dtdef.rot_Y = no_value;
dtdef.rot_Z = no_value;
dtdef.bwscale = no_value;
dtdef.to84_via = cs_DTCTYP_NONE;
while (CS_fgets (buff,sizeof (buff),inStrm) != NULL)
{
if (cancel)
{
CS_fclose (inStrm);
CS_fclose (outStrm);
if (elStrm != NULL) CS_fclose (elStrm);
CS_remove (outp); /*lint !e534 */
return (err_cnt);
}
line_nbr += 1;
/* Ignore comments and blank lines. */
CS_trim (buff);
if (buff [0] == '#' || buff [0] == '\0')
{
continue;
}
cp = buff;
while ((cp = strchr (cp,'#')) != NULL)
{
if (*(cp + 1) != '#' &&
*(cp - 1) != '\\')
{
*cp = '\0';
break;
}
}
/* Run the line through the table parser. We
see what type of line we have. */
cp = buff;
tp = (struct cs_DtcmpT_ *)CS_tpars (&cp,cs_DtcmpT,sizeof (struct cs_DtcmpT_));
if (tp == NULL)
{
CS_stncp (err_seg,buff,sizeof (err_seg));
sprintf (err_msg,"Invalid keyword (%s) on line %d.",err_seg,line_nbr);
cancel = (*err_func)(err_msg);
err_cnt += 1;
dtdef.key_nm [0] = '\0';
continue;
}
/* Here when we have a valid line. Cp points to the first
character after the colon. */
CS_trim (cp);
switch (tp->type) {
case DT_NAME:
/* Here each time we encounter a new datum
name. We see if there is an existing
datum which must be written. */
if (dtdef.key_nm [0] != '\0' && /* Skip 1st one. */
(test || CS_stricmp (dtdef.group,"TEST")))
{
st = CSdtdefwr (outStrm,&dtdef,crypt,warn,elStrm,err_func);
if (st >= 0) err_cnt += st;
else
{
cancel = TRUE;
err_cnt += -st;
}
}
/* Prepare for the next coordinate system. */
memset (&dtdef,'\0',sizeof (dtdef));
dtdef.delta_X = no_value;
dtdef.delta_Y = no_value;
dtdef.delta_Z = no_value;
dtdef.rot_X = no_value;
dtdef.rot_Y = no_value;
dtdef.rot_Z = no_value;
dtdef.bwscale = no_value;
dtdef.protect = FALSE;
dtdef.to84_via = cs_DTCTYP_NONE;
CS_stncp (dtdef.key_nm,cp,sizeof (dtdef.key_nm));
st = CS_nampp (dtdef.key_nm);
if (st != 0)
{
sprintf (err_msg,"%s is not a valid datum key name; line %d.",cp,line_nbr);
cancel = (*err_func)(err_msg);
err_cnt += 1;
}
break;
case DESC_NM:
if (strlen (cp) >= sizeof (dtdef.name) && warn)
{
sprintf (err_msg,"Warning: Description for %s on line %d is too long.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
CS_stncp (dtdef.name,cp,sizeof (dtdef.name));
break;
case ELLP_NM:
CS_stncp (dtdef.ell_knm,cp,sizeof (dtdef.ell_knm));
break;
case LOCATION:
if (strlen (cp) >= sizeof (dtdef.locatn) && warn)
{
sprintf (err_msg,"Warning: Country list for %s on line %d is too long.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
CS_stncp (dtdef.locatn,cp,sizeof (dtdef.locatn));
break;
case COUNTRY:
if (strlen (cp) >= sizeof (dtdef.cntry_st) && warn)
{
sprintf (err_msg,"Warning: Country list for %s on line %d is too long.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
CS_stncp (dtdef.cntry_st,cp,sizeof (dtdef.cntry_st));
break;
case SOURCE:
if (strlen (cp) >= sizeof (dtdef.source) && warn)
{
sprintf (err_msg,"Warning: Source for %s on line %d is too long.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
CS_stncp (dtdef.source,cp,sizeof (dtdef.source));
break;
case DELTA_X:
dtdef.delta_X = atof (cp);
if (warn && (fabs (dtdef.delta_X) > 2000.0))
{
sprintf (err_msg,"Warning: Delta X value for %s on line %d is suspicious.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
break;
case DELTA_Y:
dtdef.delta_Y = atof (cp);
if (warn && (fabs (dtdef.delta_Y) > 2000.0))
{
sprintf (err_msg,"Warning: Delta Y value for %s on line %d is suspicious.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
break;
case DELTA_Z:
dtdef.delta_Z = atof (cp);
if (warn && (fabs (dtdef.delta_Z) > 2000.0))
{
sprintf (err_msg,"Warning: Delta Z value for %s on line %d is suspicious.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
break;
case ROT_X:
dtdef.rot_X = atof (cp);
if (warn && (fabs (dtdef.rot_X) >= 60.0))
{
sprintf (err_msg,"Warning: X Rotation value for %s on line %d is suspicious.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
break;
case ROT_Y:
dtdef.rot_Y = atof (cp);
if (warn && (fabs (dtdef.rot_Y) >= 60.0))
{
sprintf (err_msg,"Warning: Y Rotation value for %s on line %d is suspicious.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
break;
case ROT_Z:
dtdef.rot_Z = atof (cp);
if (warn && (fabs (dtdef.rot_Z) >= 60.0))
{
sprintf (err_msg,"Warning: Y Rotation value for %s on line %d is suspicious.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
break;
case BWSCALE:
dtdef.bwscale = atof (cp);
if (warn && (fabs (dtdef.bwscale) >= 25.0))
{
sprintf (err_msg,"Warning: Bursa Wolfe scale value for %s on line %d is suspicious.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
break;
case USE:
dtdef.to84_via = cs_DTCTYP_NONE;
for (typPtr = cs_DtTypeT;typPtr->type != cs_DTCTYP_NONE;typPtr += 1)
{
if (!CS_stricmp (cp,typPtr->label))
{
dtdef.to84_via = typPtr->type;
break;
}
}
if (dtdef.to84_via == cs_DTCTYP_NONE)
{
sprintf (err_msg,"Invalid 'USE' specification detected on line %d.",line_nbr);
cancel = (*err_func)(err_msg);
err_cnt += 1;
}
break;
case GROUP:
if (strlen (cp) >= sizeof (dtdef.group) && warn)
{
sprintf (err_msg,"Warning: Group for %s on line %d is too long.",dtdef.key_nm,line_nbr);
cancel = (*err_func)(err_msg);
}
CS_stncp (dtdef.group,cp,sizeof (dtdef.group));
break;
case EPSG_NBR:
dtdef.epsgNbr = atoi (cp);
break;
default:
sprintf (err_msg,"Software problem detected at line %d in module %s.",__LINE__,__FILE__);
(void)(*err_func)(err_msg);
cancel = TRUE;
break;
}
/* On to the next input line. */
}
CS_fclose (inStrm);
/* Write out the last coordinate system if not in error. */
if (dtdef.key_nm [0] != '\0' && (test || CS_stricmp (dtdef.group,"TEST")))
{
st = CSdtdefwr (outStrm,&dtdef,crypt,warn,elStrm,err_func);
if (st >= 0) err_cnt += st;
else
{
cancel = TRUE;
err_cnt += -st;
}
}
if (elStrm != NULL) CS_fclose (elStrm);
if (cancel)
{
CS_fclose (outStrm);
CS_remove (outp); /*lint !e534 */
return (err_cnt);
}
/* Sort the output file. */
CS_fseek (outStrm,(long)sizeof (magic),SEEK_SET);
CS_ips (outStrm,sizeof (dtdef),0L,(CMPFUNC_CAST)CS_dtcmp); /*lint !e534 */
/* Verify that there are no duplicates. */
CS_fseek (outStrm,(long)sizeof (magic),0);
CS_dtrd (outStrm,&dtdef,&dummy); /*lint !e534 */
CS_stncp (last_name,dtdef.key_nm,sizeof (last_name));
while (!cancel && CS_dtrd (outStrm,&dtdef,&dummy) != 0)
{
if (!CS_stricmp (dtdef.key_nm,last_name))
{
sprintf (err_msg,"Datum key name %s appears more than once.",last_name);
cancel = (*err_func)(err_msg);
err_cnt += 1;
}
CS_stncp (last_name,dtdef.key_nm,sizeof (last_name));
}
CS_fclose (outStrm);
/* Remove the output file if there were errors. */
if (err_cnt != 0)
{
CS_remove (outp); /*lint !e534 */
}
return (err_cnt);
}
int CSjapanQ (struct csGeodeticXfromParmsFile_* fileParms,Const char* dictDir,int err_list [],int list_sz)
{
extern char cs_DirsepC;
extern char cs_ExtsepC;
int err_cnt;
char *cp;
csFILE* strm;
char meshCode [] = "Meshcode";
char line1Buffer [256];
char line2Buffer [256];
char line3Buffer [256];
char pathBuffer [MAXPATH];
cp = fileParms->fileName;
if (*cp == '.' && *(cp + 1) == cs_DirsepC)
{
CS_stncp (pathBuffer,dictDir,sizeof (pathBuffer));
CS_stncat (pathBuffer,cp,MAXPATH);
}
else
{
CS_stncp (pathBuffer,cp,MAXPATH);
}
/* We will return (err_cnt + 1) below. */
err_cnt = -1;
if (err_list == NULL) list_sz = 0;
/* Verify that the file exists and that the format appears to be correct. */
strm = CS_fopen (pathBuffer,_STRM_TXTRD);
if (strm != NULL)
{
CS_fgets (line1Buffer,sizeof (line1Buffer),strm);
CS_fgets (line2Buffer,sizeof (line2Buffer),strm);
CS_fgets (line3Buffer,sizeof (line3Buffer),strm);
CS_fclose (strm);
strm = NULL;
if (!CS_stristr (line1Buffer,meshCode) &&
!CS_stristr (line2Buffer,meshCode) &&
!CS_stristr (line3Buffer,meshCode))
{
/* The pohrase meshcode was not found anywhere on the first three
lines, we assume this is not a ".par" file. */
if (++err_cnt < list_sz) err_list [err_cnt] = cs_DTQ_FORMAT;
}
}
else
{
//the txt file didn't exist - so, check whether at least the binary file does
cp = strrchr (pathBuffer,cs_ExtsepC);
if (cp == NULL)
{
if (++err_cnt < list_sz) err_list [err_cnt] = cs_DTQ_FILE;
}
else
{
CS_stcpy ((cp + 1),"_par");
if (0 != CS_access(pathBuffer, 4))
{
if (++err_cnt < list_sz) err_list [err_cnt] = cs_DTQ_FILE;
}
}
}
return (err_cnt + 1);
}
