#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef XT3_Catamount
#include <features.h>
#undef htonl
#define htonl(x) swap_byte4(x)
#elif defined(_WIN32)
#include <Winsock2.h>
#else
#include <netinet/in.h>
#endif
#include "dprints.h" /* for dprints */
#include "gribfuncs.h" /* prototypes */
#include <math.h>
/*
************************************************************************
* A. FUNCTION gribputgds
* used to decode Grib's Grid Defn Section. It returns with both
* internal structures GDS_HEAD_INPUT and VOID* projblock filled,
* and also with true GDS already appended to GribHeader's Entire_Msg;
*
* INTERFACE:
* int gribputgds (Geom_In, pGDS_Head_Input, ppvGDS_Proj_Input,
* ppgrib_hdr, errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) GEOM_IN Geom_In
* Geometry information used as input;
* (O) GDS_HEAD_INPUT *pGDS_Head_Input
* this is the internal GDS structure. Attributes (uslength,
* usData_type, chData_type, usNum_v and usPl_Pv) gets updated;
* (O) void **ppvGDS_Proj_Input;
* This is a pre-alloced storage of type Void and has length of
* MAX_INP_PROJ_SIZE bytes long. How this block is filled depends
* on the type of Projection it is. Projections currently supported
* are Spherical, Lambert, and Polar Stereographic.
* (I&O) GRIB_HDR **ppgrib_hdr
* may already have one or more of the other Grib Sections
* (IDS, PDS, BMS, BDS, or EDS). Upon successful exit, will
* also contain a GDS section.
* (O) char *errmsg
* empty array, returned filled if error occurred;
*
* RETURN CODE:
* 0> no errors; GDS appended to GRIB_HDR's entire_msg, its info
* stored in bds_len & bds_ptr; msg_length updated too;
* 1> error, grib hdr is null; errmsg filled;
************************************************************************
*/
/*
NCAR AIX does not have lrint, make one up.
*/
#ifdef NCARIBM_NOC99
#define lrint(dbl) ((long)rint(dbl))
#endif
#ifdef _WIN32
#define lrint(x) (floor(x+(x>0) ? 0.5 : -0.5))
#endif
#if PROTOTYPE_NEEDED
int gribputgds ( GEOM_IN Geom_In, GDS_HEAD_INPUT *pGDS_Head_Input,
void **ppvGDS_Proj_Input, GRIB_HDR **ppgrib_hdr,
char *errmsg)
#else
int gribputgds ( Geom_In, pGDS_Head_Input, ppvGDS_Proj_Input,
ppgrib_hdr, errmsg)
GEOM_IN Geom_In;
GDS_HEAD_INPUT *pGDS_Head_Input;
void **ppvGDS_Proj_Input;
GRIB_HDR **ppgrib_hdr;
char *errmsg;
#endif
{
/*
* A.0 DEFAULT to err stat 1
*/
char *func= "gribputgds";
char *pgds=0; /* true grib, GDS_HEAD + Proj block */
GDS_HEAD *pGDS_Head=0; /* first 6 bytes of PGDS */
void *pvGDS_Proj=0; /* projection info, PGDS 7th byte and on... */
long lProj_sz ; /* size of True-Grib projection block */
long new_msgsz; /* size after adding GDS */
GRIB_HDR *gh=0; /* temp ptr to struct */
unsigned char ucflag;
int tempsz, stat= 1;
GDS_LATLON_INPUT *mp;
DPRINT0 ("\nEntering gribputgds .....\n");
/*
*
* A.1 IF (Grib Hdr is null) THEN
* RETURN error Stat !null ptrs msg in errmsg
* ENDIF
*/
gh = *ppgrib_hdr;
if (!gh || !gh->entire_msg) {
DPRINT1("%s: grib header is null\n", func);
sprintf(errmsg,"%s: grib header is null\n", func);
goto BYE;
}
/*
*
* A.3 ALLOCATE space for True Grib Structs GDS_HEAD & VOID *proj;
* IF (fails) THEN
* RETURN with bad Stat !errmsg filled
* ELSE
* CLEAR out structs
* ENDIF
*/
if (! (pgds= (char *) malloc(sizeof (GDS_HEAD) + MAX_PROJ_SIZE))) {
DPRINT1 ("%s: MALloced true Grib struct failed\n",func);
sprintf(errmsg,"%s: MALloced true Grib struct failed\n",func);
goto BYE;
}
else memset ((void *)pgds, '\0', sizeof(GDS_HEAD) + MAX_PROJ_SIZE);
/*
*
* A.4 ASSIGN (GDS_HEAD *pGDS_Head) to be beginning of local PGDS block
* ASSIGN (void *pvGDS_Proj) to byte #7 of local PGDS block
*/
pGDS_Head = (GDS_HEAD *) pgds;
pvGDS_Proj = (void *) (pgds + sizeof(GDS_HEAD));
/*
*
* A.5 INIT some fields of GDS_HEAD & GDS_HEAD_INPUT structs
*/
pGDS_Head->chNV = ( unsigned char ) 0;
pGDS_Head->chPV = ( unsigned char ) 255;
pGDS_Head_Input->usNum_v = 0; /* INPUT NOT USED AT THIS TIME */
pGDS_Head_Input->usPl_Pv = 255;
/*
*
* !now fill true GRIB Grid Defn Sect depending on Projection type
* A.6.a IF (projection is Spherical) THEN
*/
if ((strcmp(Geom_In.prjn_name,"spherical")==0) ||
(strcmp(Geom_In.prjn_name,"gaussian") == 0)){
/*
* A.6.a.1 FUNCTION create_inpLatlon !create internal Latlon struct
* !using GEOM_IN & USER_INPUT
* A.6.a.2 FUNCTION inp2grib_Latlon !use internal Latlon struct to
* !make true Latlon Grib Gds
* A.6.a.3 IF (either failed) THEN
* FUNCTION upd_child_errmsg !tack funcname to errmsg
* RETURN with error !errmsg filled
* ENDIF
*/
if ( create_inpLatlon(Geom_In, ppvGDS_Proj_Input,errmsg)
|| inp2grib_Latlon (ppvGDS_Proj_Input,
(LATLON *)(pgds+sizeof(GDS_HEAD)),&lProj_sz, errmsg))
{
upd_child_errmsg (func, errmsg); goto BYE;
}
/*
* A.6.a.4 STORE Gds len, DataType=0 into internal GDS struct
*/
pGDS_Head_Input->uslength = sizeof(GDS_HEAD) + lProj_sz;
if (strcmp(Geom_In.prjn_name,"spherical")==0) {
pGDS_Head_Input->usData_type = LATLON_PRJ;
pGDS_Head->chData_type = 0;
} else {
pGDS_Head_Input->usData_type = GAUSS_PRJ;
pGDS_Head->chData_type = 4;
}
}
/*
* A.6.b ELSE IF (projection is Lambert) THEN
*/
else if (strcmp(Geom_In.prjn_name,"lambert")==0)
{
/*
* A.6.b.1 FUNCTION create_inpLambert !create internal Lambert struct
* !using GEOM_IN & USER_INPUT
* A.6.b.2 FUNCTION inp2grib_Lambert !use internal Lambert struct to
* !make true Lambert Grib Gds
* A.6.b.3 IF (either failed) THEN
* FUNCTION upd_child_errmsg !tack funcname to errmsg
* RETURN with error !errmsg filled
* ENDIF
*/
if ( create_inpLambert(Geom_In,ppvGDS_Proj_Input,errmsg)
|| inp2grib_Lambert( ppvGDS_Proj_Input,
(LAMBERT *)(pgds+sizeof(GDS_HEAD)), &lProj_sz, errmsg))
{
upd_child_errmsg (func, errmsg); goto BYE;
}
/*
* A.6.b.4 STORE Gds len, DataType=3 into internal GDS struct
*/
pGDS_Head_Input->uslength = sizeof(GDS_HEAD) + lProj_sz;
pGDS_Head_Input->usData_type = LAMB_PRJ;
pGDS_Head->chData_type = 3;
}
/*
* A.6.c ELSE if (projection is Polar_Stereo) THEN
*/
else if (strcmp(Geom_In.prjn_name,"polar_stereo")==0)
{
/*
* A.6.c.1 FUNCTION create_inpPolar
* !create internal Polar struct using GEOM_IN & USER_INPUT
* A.6.c.2 FUNCTION inp2grib_PolarSt
* !use internal PolarSt struct to make true PolarSt Grib Gds
* A.6.c.3 IF (either failed) THEN
* FUNCTION upd_child_errmsg !tack funcname to errmsg
* RETURN with error !errmsg filled
* ENDIF
*/
/* make True Grib PPVGDS_PROJ & SIZE using internal ppvGds_proj_input : */
if (create_inpPolar(Geom_In, ppvGDS_Proj_Input,errmsg)
|| inp2grib_PolarSt(ppvGDS_Proj_Input,
(void *)(pgds+sizeof(GDS_HEAD)),&lProj_sz, errmsg) )
{
upd_child_errmsg (func, errmsg); goto BYE;
}
/*
* A.6.c.4 STORE Gds len, DataType=5 into internal GDS struct
*/
pGDS_Head_Input->uslength = sizeof(GDS_HEAD) + lProj_sz;
pGDS_Head_Input->usData_type = POLAR_PRJ;
pGDS_Head->chData_type = 5;
}
/*
* A.6.c ELSE if (projection is Mercator) THEN
*/
else if (strcmp(Geom_In.prjn_name,"mercator")==0)
{
/*
* A.6.c.1 FUNCTION create_inpMercator
* !create internal Mercator struct using GEOM_IN & USER_INPUT
* A.6.c.2 FUNCTION inp2grib_Mercator
* !use internal Mercator struct to make true PolarSt Grib Gds
* A.6.c.3 IF (either failed) THEN
* FUNCTION upd_child_errmsg !tack funcname to errmsg
* RETURN with error !errmsg filled
* ENDIF
*/
/* make True Grib PPVGDS_PROJ & SIZE using internal ppvGds_proj_input : */
if (create_inpMercator(Geom_In, ppvGDS_Proj_Input,errmsg)
|| inp2grib_Mercator(ppvGDS_Proj_Input,
(void *)(pgds+sizeof(GDS_HEAD)),&lProj_sz, errmsg) )
{
upd_child_errmsg (func, errmsg); goto BYE;
}
/*
* A.6.c.4 STORE Gds len, DataType=5 into internal GDS struct
*/
pGDS_Head_Input->uslength = sizeof(GDS_HEAD) + lProj_sz;
pGDS_Head_Input->usData_type = MERC_PRJ;
pGDS_Head->chData_type = 1;
}
/*
* A.6.d ELSE ! Projection unknown
*/
else {
/*
* RETURN with error !errmsg filled
*/
DPRINT2 ("%s: Projection '%s' unknown\n",func,Geom_In.prjn_name);
sprintf (errmsg,"%s: Projection '%s' unknown\n",func,Geom_In.prjn_name);
goto BYE;
/*
* A.6.d ENDIF
*/
}
/*
*
* A.7 STORE ptr to Gds and its Length in Grib hdr
*/
gh->gds_ptr = gh->entire_msg + gh->msg_length;
gh->gds_len = sizeof(GDS_HEAD) + lProj_sz;
DPRINT3 ("Gds length= (%ld + %ld)= %ld \n",
sizeof(GDS_HEAD), lProj_sz, gh->gds_len);
/*
*
* A.8 STORE Gds length in the True Grib GDS block too
*/
set_bytes(gh->gds_len, 3, pGDS_Head->achGDS_length);
/*
*
* A.9 IF gribhdr's buffer is too small AND
* FUCTION Expand_gribhdr failed
* THEN
* RETURN with error !errmsg filled
* ENDIF
*/
new_msgsz= gh->msg_length + gh->gds_len;
if (new_msgsz > gh->abs_size
&& Expand_gribhdr (gh, new_msgsz, errmsg) !=0)
{
upd_child_errmsg (func, errmsg);
goto BYE;
}
/*
*
* A.10 UPDATE Grib Header Struct
* !copy true BDS block into Grib Header's Entire_Msg array;
* !add gds length to Message length
*/
memcpy ((void *)gh->gds_ptr, (void *)pgds, gh->gds_len);
gh->msg_length += gh->gds_len;
DPRINT1 ("copying %ld bytes from PGDS to gh->GDS_PTR \n", gh->gds_len);
/*
*
* A.11 CHANGE return Status to no errors
*/
stat = 0;
BYE:
/*
*
* A.12 FREE up storage
*
* A.13 RETURN Status
*/
if (pgds) free (pgds);
DPRINT3 ("Leaving %s, stat=%d, errmsg='%s'\n", func,stat,errmsg);
return stat;
/*
*
* END OF FUNCTION
*
*
*/
}
/*
*
*********************************************************************
* B. FUNCTION: create_inpLambert
* Fills Lambert Projection structure.
*
* INTERFACE:
* int create_inpLambert ( geom_in, ppvGDS_Proj_Input, errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) GEOM_IN geom_in Holds info to fill local Lambert block
* (O) void **ppvGDS_Proj_Input pre-allocated block to be filled;
* (O) char *errmsg returns filled if error occurred
*
* RETURN CODE
* 0> success, ppvGDS_Proj_Input holds Lambert projection information;
* 1> the input pre-MAlloced projection block is null; errmsg filled;
**********************************************************************/
#if PROTOTYPE_NEEDED
int create_inpLambert (GEOM_IN geom_in, void **ppvGDS_Proj_Input, char *errmsg)
#else
int create_inpLambert (geom_in, ppvGDS_Proj_Input, errmsg)
GEOM_IN geom_in; void **ppvGDS_Proj_Input; char *errmsg;
#endif
{
char *func= "create_inpLambert";
/*
*
* B.1 DEFAULT status of 0
*/
int nStatus = 0;
double cut1, cut2, tmp;
GDS_LAM_INPUT *pGDS_Lam_Input;
DPRINT1 ( " Entering %s.....\n", func );
/*
*
* B.2 IF (incoming projection block is Null)
* THEN
* FILL errmsg
* SET return status to error
*/
if (!(pGDS_Lam_Input= (GDS_LAM_INPUT *) *ppvGDS_Proj_Input) )
{
DPRINT1 ( "%s: ppvGDS_Proj_Input is null\n", func);
sprintf(errmsg, "%s: ppvGDS_Proj_Input is null\n", func);
nStatus = 1;
}
/*
* B.2.b ELSE
* USE info from GEOM_IN to fill the Lambert GDS struct
*/
else
{
pGDS_Lam_Input->usData_type = LAMB_PRJ; /* data type flag (Tbl ) */
pGDS_Lam_Input->iNx = (int) geom_in.nx; /* #pts along x-axis */
pGDS_Lam_Input->iNy = (int) geom_in.ny;/* #pts along y-axis */
/* latitude & lon of 1st grid point */
pGDS_Lam_Input->lLat1 = lrint(geom_in.first_lat *1000.);
pGDS_Lam_Input->lLon1 = lrint((geom_in.first_lon) *1000.);
pGDS_Lam_Input->usRes_flag = geom_in.usRes_flag;/*Resolution flags Tbl7*/
pGDS_Lam_Input->lLon_orient=lrint(geom_in.parm_3 *1000.);/*grid orient */
pGDS_Lam_Input->ulDx=(unsigned long)lrint(geom_in.x_int_dis*1000.);/*Xdir gridlen*/
pGDS_Lam_Input->ulDy=(unsigned long)lrint(geom_in.y_int_dis*1000.);/*Ydir gridlen*/
if ((geom_in.y_int_dis != 0) && (geom_in.x_int_dis != 0))
pGDS_Lam_Input->usRes_flag = pGDS_Lam_Input->usRes_flag + 0x88;
if (geom_in.parm_1 > 0)
pGDS_Lam_Input->usProj_flag = 0; /* projection flag */
else
pGDS_Lam_Input->usProj_flag = 1<<7; /* projection flag */
pGDS_Lam_Input->usScan_mode = geom_in.scan; /* order of grid points (Tbl8)*/
/* Make sure CUT1 is closest to Pole */
cut1 = geom_in.parm_1;
cut2 = geom_in.parm_2;
if (cut1 >= 0.) {
if (cut2 > cut1) { tmp = cut1; cut1 = cut2; cut2 = tmp; }
}
else {
if (cut2 < cut1) { tmp = cut1; cut1 = cut2; cut2 = tmp; }
}
pGDS_Lam_Input->lLat_cut1=lrint(cut1 *1000.);/* 1stlat fr pole secant cuts*/
pGDS_Lam_Input->lLat_cut2=lrint(cut2 *1000.);/* 2ndlat fr pole secant cuts*/
pGDS_Lam_Input->lLat_southpole = -90000; /* lat of southern pole (millidegrees) */
pGDS_Lam_Input->lLon_southpole = 0; /* lon of souther pole (millidegrees) */
pGDS_Lam_Input->usZero = 0; /* filler zeroes */
/*
* DEBUG print
*/
DPRINT3("\t%s: usData_type = %u (%s)\n",
func,pGDS_Lam_Input->usData_type, prjn_name[pGDS_Lam_Input->usData_type] );
DPRINT2("\t%s: iNx = %d\n", func,pGDS_Lam_Input->iNx );
DPRINT2("\t%s: iNy = %d\n", func,pGDS_Lam_Input->iNy );
DPRINT2("\t%s: lLat1 = %d\n", func,pGDS_Lam_Input->lLat1 );
DPRINT2("\t%s: lLon1 = %d\n", func,pGDS_Lam_Input->lLon1 );
DPRINT2("\t%s: lLon_orient = %d\n", func,pGDS_Lam_Input->lLon_orient);
DPRINT2("\t%s: ulDx = %u\n", func, pGDS_Lam_Input->ulDx );
DPRINT2("\t%s: ulDy = %u\n", func, pGDS_Lam_Input->ulDy );
DPRINT2("\t%s: lLat_cut1 = %d\n", func, pGDS_Lam_Input->lLat_cut1);
DPRINT2("\t%s: lLat_cut2 = %d\n", func, pGDS_Lam_Input->lLat_cut2);
DPRINT2("\t%s: usRes_flag = %u\n", func,pGDS_Lam_Input->usRes_flag);
DPRINT2("\t%s: usProj_flag = %u\n", func,pGDS_Lam_Input->usProj_flag);
DPRINT2("\t%s: usScan_mode = %u\n", func,pGDS_Lam_Input->usScan_mode);
/*
* B.2 ENDIF
*/
}
DPRINT1(" Exiting %s.......\n" ,func);
/*
*
* B.3 RETURN status
*/
return ( nStatus );
/*
*
* END OF FUNCTION
*
*
*/
}
/*
*
*********************************************************************
* C. FUNCTION: create_inpPolar
* Fills Polar Stereographic Projection structure.
*
* INTERFACE:
* int create_inpPolar (geom_in, ppvGDS_Proj_Input, errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) GEOM_IN geom_in holds info to fill local Polar block
* (O) void **ppvGDS_Proj_Input block to filled with Polar Stereo info
* (O) char *errmsg empty array filled if error occurs
*
* RETURN CODE:
* 0> success, ppvGDS_Proj_Input holds Polar projection info;
* 1> the input pre-Malloced projection block is null; errmsg filled;
**********************************************************************/
#if PROTOTYPE_NEEDED
int create_inpPolar (GEOM_IN geom_in, void **ppvGDS_Proj_Input, char *errmsg)
#else
int create_inpPolar (geom_in, ppvGDS_Proj_Input, errmsg)
GEOM_IN geom_in; void **ppvGDS_Proj_Input; char *errmsg;
#endif
{
char *func="create_inpPolar";
/*
*
* C.1 DEFAULT status of 0
*/
GDS_PS_INPUT *pGDS_PS_Input;
int nStatus = 0;
DPRINT1 (" Entering %s.....\n",func );
/*
*
* C.2 IF (incoming projection block is Null)
* C.2.a THEN
* FILL errmsg
* CHANGE return Status to error
*/
if (!(pGDS_PS_Input= (GDS_PS_INPUT *) *ppvGDS_Proj_Input) )
{
DPRINT1 ("%s: ppvGDS_Proj_Input is null\n", func);
sprintf(errmsg,"%s: ppvGDS_Proj_Input is null\n", func);
nStatus = 1;
}
else {
/*
* C.2.b ELSE
* C.2.b.1 FILL elements of Polar Stereo structure
*/
pGDS_PS_Input->usData_type = POLAR_PRJ; /* data type flag (Tbl ) */
pGDS_PS_Input->usNx = (unsigned short) geom_in.nx;/* #pts along x-axis*/
pGDS_PS_Input->usNy = (unsigned short) geom_in.ny;/* #pts along y-axiz*/
pGDS_PS_Input->lLat1 = lrint(geom_in.first_lat *1000.);/*lat of 1st gridpt*/
pGDS_PS_Input->lLon1 = lrint(geom_in.first_lon *1000.);/*lon of 1st gridpt*/
pGDS_PS_Input->usRes_flag = geom_in.usRes_flag;/* resolution flags Tbl7 */
pGDS_PS_Input->lLon_orient = lrint(geom_in.parm_2 *1000.);/*grid orient*/
pGDS_PS_Input->ulDx=(unsigned long)lrint(geom_in.x_int_dis*1000.);/*Xdir gridlen*/
pGDS_PS_Input->ulDy=(unsigned long)lrint(geom_in.y_int_dis*1000.);/*Ydir gridlen*/
if ((geom_in.y_int_dis != 0) && (geom_in.x_int_dis != 0))
pGDS_PS_Input->usRes_flag = pGDS_PS_Input->usRes_flag + 0x88;
if (geom_in.first_lat > 0)
pGDS_PS_Input->usProj_flag = 0; /* projection flag */
else
pGDS_PS_Input->usProj_flag = 1<<7; /* projection flag */
pGDS_PS_Input->usScan_mode = geom_in.scan; /* order of grid points (Tbl 8) */
pGDS_PS_Input->usZero = 0; /* filler zeroes */
/*
* C.2.b.2 DEBUG print
*/
DPRINT3 ("\t%s: usData_type = %u (%s)\n",func,pGDS_PS_Input->usData_type,
prjn_name [pGDS_PS_Input->usData_type] );
DPRINT2("\t%s: usNx = %u\n", func,pGDS_PS_Input->usNx );
DPRINT2("\t%s: usNy = %u\n", func,pGDS_PS_Input->usNy );
DPRINT2("\t%s: lLat1 = %d\n", func,pGDS_PS_Input->lLat1 );
DPRINT2("\t%s: lLon1 = %d\n", func,pGDS_PS_Input->lLon1 );
DPRINT2("\t%s: lLon_orient = %d\n", func,pGDS_PS_Input->lLon_orient);
DPRINT2("\t%s: ulDx = %u\n", func,pGDS_PS_Input->ulDx);
DPRINT2("\t%s: ulDy = %u\n", func,pGDS_PS_Input->ulDy);
DPRINT2("\t%s: usRes_flag = %u\n", func,pGDS_PS_Input->usRes_flag);
DPRINT2("\t%s: usProj_flag = %u\n", func,pGDS_PS_Input->usProj_flag);
DPRINT2("\t%s: usScan_mode = %u\n", func,pGDS_PS_Input->usScan_mode);
/*
* C.2.b ENDIF
*/
}
DPRINT1(" Exiting %s.......\n" ,func);
/*
*
* C.3 RETURN status
*/
return ( nStatus );
/*
*
* END OF FUNCTION
*
*
*/
}
/*
*
*********************************************************************
* D. FUNCTION: create_inpLatlon
* Fills Latitude Longitude Projection structure.
*
* INTERFACE:
* int create_inpLatlon ( geom_in, ppvGDS_Proj_Input, errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) GEOM_IN geom_in holds geom info to fill local Lat/Lon block
* (O) void **ppvGDS_Proj_Input to be filled with LatLon projection info
* (O) char *errmsg empty array, filled if error occurred
*
* OUTPUT:
* 0> success, ppGDS_Proj_Input filled with Lat/Lon projection info
* 1> pre-Malloced Projection block is null; errmsg filled;
**********************************************************************/
#if PROTOTYPE_NEEDED
int create_inpLatlon (GEOM_IN geom_in, void **ppvGDS_Proj_Input, char *errmsg)
#else
int create_inpLatlon (geom_in, ppvGDS_Proj_Input, errmsg)
GEOM_IN geom_in; void **ppvGDS_Proj_Input; char *errmsg;
#endif
{
char *func= "Create_InpLatLon";
/*
*
* D.0 DEFAULT to return status of 0
*/
GDS_LATLON_INPUT *pGDS_Latlon_Input;
int nStatus = 0;
DPRINT1 (" Entering %s......\n" ,func);
/*
*
* D.2 IF (incoming projection block is Null)
* THEN
* FILL errmsg
* CHANGE stat to 1
*/
if (!(pGDS_Latlon_Input= (GDS_LATLON_INPUT *) *ppvGDS_Proj_Input) )
{
DPRINT1 (" %s: ppvGDS_Proj_Input is null\n", func);
sprintf(errmsg," %s: ppvGDS_Proj_Input is null\n", func);
nStatus = 1;
}
/*
* D.2.b ELSE
* D.2.b.1 FILL elements of the Lat/Lon GDS block
*/
else
{
pGDS_Latlon_Input->usData_type = LATLON_PRJ; /* data type flag (Tbl )*/
pGDS_Latlon_Input->usNi=(unsigned short)geom_in.nx;/*#pts along x-axis 109*/
pGDS_Latlon_Input->usNj=(unsigned short)geom_in.ny;/* #pts along y-axiz 82*/
pGDS_Latlon_Input->lLat1=lrint(geom_in.first_lat*1000.);/*lat of 1stgridpt*/
pGDS_Latlon_Input->lLon1=lrint(geom_in.first_lon*1000.);/*lon of 1stgridpt*/
pGDS_Latlon_Input->usRes_flag=geom_in.usRes_flag;/*resolution flags Tbl7*/
pGDS_Latlon_Input->lLat2 =lrint(geom_in.last_lat*1000.);/*lat of 2ndgridpt*/
pGDS_Latlon_Input->lLon2 =lrint(geom_in.last_lon*1000.);/*lon of 2ndgridpt*/
pGDS_Latlon_Input->iDi = lrint(geom_in.parm_2 *1000.);/* i-dir incr*/
pGDS_Latlon_Input->iDj = lrint(geom_in.parm_1 *1000.);/* j-dir incr*/
if ((geom_in.parm_1 != 0) && (geom_in.parm_2 != 0))
pGDS_Latlon_Input->usRes_flag = pGDS_Latlon_Input->usRes_flag + 0x88;
pGDS_Latlon_Input->usScan_mode = geom_in.scan; /* order ofgridpts (Tbl 8)*/
pGDS_Latlon_Input->usZero = 0; /* filler zeroes*/
pGDS_Latlon_Input->lLat_southpole= -90000;/* lat of southern pole (millidegrees)*/
pGDS_Latlon_Input->lLon_southpole= 0;/* lon of southern pole (millidegrees)*/
pGDS_Latlon_Input->lRotate = 0;/* angle of rotation*/
pGDS_Latlon_Input->lPole_lat = 0;/* lat of pole of stretching (mdeg)*/
pGDS_Latlon_Input->lPole_lon = 0; /* lon of pole of stretching*/
pGDS_Latlon_Input->lStretch = 0;/* stretching factor*/
/*
* D.2.b.2 DEBUG print
*/
DPRINT3("\t%s: usData_type = %u (%s)\n", func,pGDS_Latlon_Input->usData_type,
prjn_name[pGDS_Latlon_Input->usData_type] );
DPRINT2("\t%s: usNi = %u\n",func,pGDS_Latlon_Input->usNi );
DPRINT2("\t%s: usNj = %u\n",func,pGDS_Latlon_Input->usNj );
DPRINT2("\t%s: lLat1 = %d\n",func,pGDS_Latlon_Input->lLat1 );
DPRINT2("\t%s: lLon1 = %d\n",func,pGDS_Latlon_Input->lLon1 );
DPRINT2("\t%s: lLat2 = %d\n",func,pGDS_Latlon_Input->lLat2 );
DPRINT2("\t%s: lLon2 = %d\n",func,pGDS_Latlon_Input->lLon2 );
DPRINT2("\t%s: iDi = %u\n",func,pGDS_Latlon_Input->iDi );
DPRINT2("\t%s: iDj = %u\n",func,pGDS_Latlon_Input->iDj );
DPRINT2("\t%s: usRes_flag = %u\n",func,pGDS_Latlon_Input->usRes_flag );
DPRINT2("\t%s: usScan_mode = %u\n",func,pGDS_Latlon_Input->usScan_mode );
DPRINT2("\t%s: lLat_southpole = %ld\n",func,pGDS_Latlon_Input->lLat_southpole);
DPRINT2("\t%s: lLon_southpole = %ld\n",func,pGDS_Latlon_Input->lLon_southpole);
DPRINT2("\t%s: lRotate = %ld\n",func,pGDS_Latlon_Input->lRotate );
DPRINT2("\t%s: lPole_lat = %ld\n",func,pGDS_Latlon_Input->lPole_lat );
DPRINT2("\t%s: lPole_lon = %ld\n",func,pGDS_Latlon_Input->lPole_lon );
DPRINT2("\t%s: lStretch = %ld\n",func,pGDS_Latlon_Input->lStretch );
/*
* D.2.b ENDIF
*/
}
/*
*
* D.3 RET2URN status
*/
DPRINT1(" Exiting %s.......\n" ,func);
return ( nStatus );
/*
* END OF FUNCTION
*
*/
}
/*
*
*********************************************************************
* FUNCTION: create_inpMercator
* Fills Mercator Projection structure.
*
* INTERFACE:
* int create_inpMercator (geom_in, ppvGDS_Proj_Input, errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) GEOM_IN geom_in holds info to fill local Mercator block
* (O) void **ppvGDS_Proj_Input block to filled with Mercator info
* (O) char *errmsg empty array filled if error occurs
*
* RETURN CODE:
* 0> success, ppvGDS_Proj_Input holds Mercator projection info;
* 1> the input pre-Malloced projection block is null; errmsg filled;
**********************************************************************/
#if PROTOTYPE_NEEDED
int create_inpMercator (GEOM_IN geom_in, void **ppvGDS_Proj_Input, char *errmsg)
#else
int create_inpMercator (geom_in, ppvGDS_Proj_Input, errmsg)
GEOM_IN geom_in; void **ppvGDS_Proj_Input; char *errmsg;
#endif
{
char *func="create_inpMercator";
/*
*
* C.1 DEFAULT status of 0
*/
mercator *pGDS_mercator_Input;
int nStatus = 0;
DPRINT1 (" Entering %s.....\n",func );
/*
*
* C.2 IF (incoming projection block is Null)
* C.2.a THEN
* FILL errmsg
* CHANGE return Status to error
*/
if (!(pGDS_mercator_Input= (mercator *) *ppvGDS_Proj_Input) )
{
DPRINT1 ("%s: ppvGDS_Proj_Input is null\n", func);
sprintf(errmsg,"%s: ppvGDS_Proj_Input is null\n", func);
nStatus = 1;
}
else {
/*
* C.2.b ELSE
* C.2.b.1 FILL elements of Polar Stereo structure
*/
pGDS_mercator_Input->usData_type = MERC_PRJ; /* data type flag (Tbl ) */
pGDS_mercator_Input->cols = (unsigned short) geom_in.nx;/* #pts along x-axis*/
pGDS_mercator_Input->rows = (unsigned short) geom_in.ny;/* #pts along y-axiz*/
pGDS_mercator_Input->first_lat = lrint(geom_in.first_lat *1000.);/*lat of 1st gridpt*/
pGDS_mercator_Input->first_lon = lrint(geom_in.first_lon *1000.);/*lon of 1st gridpt*/
pGDS_mercator_Input->usRes_flag = geom_in.usRes_flag;/* resolution flags Tbl7 */
pGDS_mercator_Input->La2 = lrint(geom_in.last_lat *1000.);/*lat of last gridpt*/
pGDS_mercator_Input->Lo2 = lrint(geom_in.last_lon *1000.);/*lon of last gridpt*/
pGDS_mercator_Input->latin = lrint(geom_in.parm_1 *1000.);/*reference latitude*/
pGDS_mercator_Input->usZero1 = 0; /* filler zeroes */
pGDS_mercator_Input->usScan_mode = geom_in.scan; /* order of grid points (Tbl 8) */
pGDS_mercator_Input->lon_inc = lrint(geom_in.parm_2 *1000.);/*longitude increment*/
pGDS_mercator_Input->lat_inc = lrint(geom_in.parm_3 *1000.);/*latitude increment*/
pGDS_mercator_Input->usZero = 0; /* filler zeroes */
/*
* C.2.b.2 DEBUG print
*/
DPRINT3 ("\t%s: usData_type = %u (%s)\n",func,pGDS_mercator_Input->usData_type,
prjn_name [pGDS_mercator_Input->usData_type] );
DPRINT2("\t%s: cols = %u\n", func,pGDS_mercator_Input->cols );
DPRINT2("\t%s: rows = %u\n", func,pGDS_mercator_Input->rows );
DPRINT2("\t%s: first_lat = %d\n", func,pGDS_mercator_Input->first_lat );
DPRINT2("\t%s: first_lon = %d\n", func,pGDS_mercator_Input->first_lon );
DPRINT2("\t%s: usRes_flag = %d\n", func,pGDS_mercator_Input->usRes_flag);
DPRINT2("\t%s: La2 = %d\n", func,pGDS_mercator_Input->La2);
DPRINT2("\t%s: Lo2 = %d\n", func,pGDS_mercator_Input->Lo2);
DPRINT2("\t%s: latin = %d\n", func,pGDS_mercator_Input->latin);
DPRINT2("\t%s: usZero1 = %d\n", func,pGDS_mercator_Input->usZero1);
DPRINT2("\t%s: usScan_mode = %d\n", func,pGDS_mercator_Input->usScan_mode);
DPRINT2("\t%s: lon_inc = %f\n", func,pGDS_mercator_Input->lon_inc);
DPRINT2("\t%s: lat_inc = %f\n", func,pGDS_mercator_Input->lat_inc);
/*
* C.2.b ENDIF
*/
}
DPRINT1(" Exiting %s.......\n" ,func);
/*
*
* C.3 RETURN status
*/
return ( nStatus );
/*
*
* END OF FUNCTION
*
*
*/
}
/*
*
****************************************************************************
* E. FUNCTION: inp2gribLambert
* This routine fills the special Lambert Projection structure for
* the GDS.
*
* INTERFACE:
* int inp2grib_Lambert (ppvGDS_Proj_Input, pLambert, lProj_size, errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) void **ppvGDS_Proj_Input;
* pointer to struct holds Input Projection data
* (O) LAMBERT *pLambert;
* block to be filled with Lambert Projection information
* (O) long *lProj_size;
* to be filled with size of LAMBERT struct;
* (O) char *errmsg;
* empty array, filled if error occurred;
*
* RETURN CODE:
* 0> success, pLambert and lProj_size filled;
* 1> got null pointers; errmsg filled;
****************************************************************************/
#if PROTOTYPE_NEEDED
int inp2grib_Lambert (void **ppvGDS_Proj_Input, LAMBERT *pLambert,
long *lProj_size, char *errmsg)
#else
int inp2grib_Lambert (ppvGDS_Proj_Input, pLambert, lProj_size, errmsg)
void **ppvGDS_Proj_Input; LAMBERT *pLambert;
long *lProj_size; char *errmsg;
#endif
{
/*
* E.1 INIT status to success
*
* E.2 DEBUG printing
*/
GDS_LAM_INPUT *vProjInp = 0;
long lTemp = 0;
int nStatus = 0;
char *func= "inp2grib_Lambert";
long tmp_byte4;
DPRINT1 (" Entering %s.....\n",func);
/*
*
* E.3 MAKE local ptr vProjInp point to Input Projection data block arg
*/
vProjInp = ( GDS_LAM_INPUT * ) *ppvGDS_Proj_Input; /* read fr this */
/*
*
* E.4 IF (either of the user's struct pointers are NUL) THEN
* SET status = 1
* RETURN
* ENDIF
*/
if (!vProjInp || !pLambert) {
DPRINT1 ("%s: the VOID *ppvGDS_Proj_Input block is null\n",func);
sprintf(errmsg, "%s: the VOID *ppvGDS_Proj_Input block is null\n",func);
nStatus= 1;
goto BYE;
}
/*
* E.5 FILL local block type LAMBERT
*/
set_bytes(vProjInp->iNx, 2, pLambert->achNx);
set_bytes(vProjInp->iNy, 2, pLambert->achNy);
/* convert lLat1 to 3chars */
set_bytes(vProjInp->lLat1, 3, pLambert->achLat1);
/* convert lLon1 to 3chars */
set_bytes(vProjInp->lLon1, 3, pLambert->achLon1);
pLambert->chRes_flag = ( unsigned char ) vProjInp->usRes_flag;
/* convert lLon_orient to 3 bytes */
set_bytes(vProjInp->lLon_orient, 3, pLambert->achLon_orient);
/* convert ulDx to 3 bytes */
set_bytes(vProjInp->ulDx, 3, pLambert->achDx);
/* convert ulDy to 3 bytes */
set_bytes(vProjInp->ulDy, 3, pLambert->achDy);
pLambert->chProj_flag = ( unsigned char ) vProjInp->usProj_flag;
pLambert->chScan_mode = ( unsigned char ) vProjInp->usScan_mode;
/* convert lLat_cut1 to 3 chars */
set_bytes(vProjInp->lLat_cut1, 3, pLambert->achLat_cut1);
/* convert lLat_cut2 to 3 chars */
set_bytes(vProjInp->lLat_cut2, 3, pLambert->achLat_cut2);
/* convert lLat_southpole to 3chars */
set_bytes(vProjInp->lLat_southpole, 3, pLambert->achLat_southpole);
/* convert lLon_southpole to 3 chars */
set_bytes(vProjInp->lLon_southpole, 3, pLambert->achLon_southpole);
set_bytes(vProjInp->usZero, 2, pLambert->achZero);
/*
*
* E.6 DEBUG print Grib LAMBERT block
*/
DPRINT3("\t%s: achNx [%02d,%02d]\n", func,
pLambert->achNx[0],pLambert->achNx[1]);
DPRINT3("\t%s: achNy [%02d,%02d]\n", func,
pLambert->achNy[0],pLambert->achNy[1]);
DPRINT4("\t%s: achLat1 [%02d,%02d,%02d]\n", func,
pLambert->achLat1[0], pLambert->achLat1[1], pLambert->achLat1[2]);
DPRINT4("\t%s: achLon1 [%02d,%02d,%02d]\n", func,
pLambert->achLon1[0], pLambert->achLon1[1], pLambert->achLon1[2]);
DPRINT2("\t%s: chRes_flag [%02d]\n", func, pLambert->chRes_flag);
DPRINT4("\t%s: achLon_orient [%02d,%02d,%02d]\n", func,
pLambert->achLon_orient[0], pLambert->achLon_orient[1],
pLambert->achLon_orient[2]);
DPRINT4("\t%s: achDx [%02d,%02d,%02d]\n", func,
pLambert->achDx[0], pLambert->achDx[1], pLambert->achDx[2]);
DPRINT4("\t%s: achDy [%02d,%02d,%02d]\n", func,
pLambert->achDy[0], pLambert->achDy[1], pLambert->achDy[2]);
DPRINT2("\t%s: chProj_flag [%02d]\n", func, pLambert->chProj_flag);
DPRINT2("\t%s: chScan_mode [%02d]\n", func, pLambert->chScan_mode);
DPRINT4("\t%s: achLat_cut1 [%02d,%02d,%02d]\n", func,
pLambert->achLat_cut1[0],
pLambert->achLat_cut1[1], pLambert->achLat_cut1[2]);
DPRINT4("\t%s: achLat_cut2 [%02d,%02d,%02d]\n", func,
pLambert->achLat_cut2[0],
pLambert->achLat_cut2[1], pLambert->achLat_cut2[2]);
DPRINT4("\t%s: achLat_southpole [%02d,%02d,%02d]\n",func,
pLambert->achLat_southpole[0],
pLambert->achLat_southpole[1], pLambert->achLat_southpole[2] );
DPRINT4("\t%s: achLon_southpole [%02d,%02d,%02d]\n",func,
pLambert->achLon_southpole[0],
pLambert->achLon_southpole[1], pLambert->achLon_southpole[2] );
DPRINT3("\t%s: achZero [%02d,%02d]\n", func,
pLambert->achZero[0], pLambert->achZero[1]);
/*******/
/*
*
* E.7 STORE proj size of LAMBERT struct in lProj_size
*/
*lProj_size = sizeof (LAMBERT);
BYE:
DPRINT3 (" Exiting %s (lProj_size=%ld), stat=%d\n", func,
*lProj_size, nStatus);
/*
*
* E.9 RETURN status
*/
return ( nStatus );
/*
*
* END OF FUNCTION
*/
}
/*
*
****************************************************************************
* F. FUNCTION: inp2grib_PolarSt
* This routine fills the special Polar Stereo Projection structure for
* the GDS.
*
* INTERFACE:
* int inp2grib_PolarSt ( ppvGDS_Proj_Input, Polar, lProj_size ,errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) void **ppvGDS_Proj_Input;
* holds input projection data
* (O) POLAR *Polar;
* to be filled with Polar Stereographic projection info
* (O) long *lProj_size;
* to be filled with size of structure POLAR
* (O) char *errmsg
* empty array, filled if error occurred
*
* RETURN CODE:
* 0> success, Polar and lProj_size filled;
* 1> pointers are null, errmsg filled;
****************************************************************************/
#if PROTOTYPE_NEEDED
int inp2grib_PolarSt (void **ppvGDS_Proj_Input, POLAR *Polar,
long *lProj_size , char *errmsg)
#else
int inp2grib_PolarSt (ppvGDS_Proj_Input, Polar, lProj_size , errmsg)
void **ppvGDS_Proj_Input; POLAR *Polar;
long *lProj_size ; char *errmsg;
#endif
{
/*
*
* F.1 INIT variables !default stat=good
*/
GDS_PS_INPUT *pProjInp = 0;
int lTemp = 0;
int nStatus = 0;
char *func="inp2grib_PolarSt";
DPRINT1 ("\t Entering %s.....\n", func);
/*
*
* F.2 POINT local pProjInp to incoming ppvGDS_Proj_Input
*/
pProjInp = ( GDS_PS_INPUT *) *ppvGDS_Proj_Input;
/*
*
* F.3 IF (true grib Polar proj block OR input Polar block is null) THEN
* SET Status= 1
* RETURN;
* ENDIF
*/
if (!Polar || !pProjInp )
{
DPRINT1 ( "%s: Polar or pProjInp is null\n", func);
sprintf(errmsg,"%s: Polar or pProjInp is null\n", func);
nStatus= 1; goto BYE;
}
/*
*
* F.4 FILL local struct from pProjInp
*/
/* convert usNx to 2 chars */
set_bytes(pProjInp->usNx, 2, Polar->achNx);
/* convert usNy to 2 chars */
set_bytes(pProjInp->usNy, 2, Polar->achNy);
/* convert lLat1 to 3 chars */
set_bytes(pProjInp->lLat1, 3, Polar->achLat1);
/* convert lLon1 to 3 chars */
set_bytes(pProjInp->lLon1, 3, Polar->achLon1);
Polar->chRes_flag = ( unsigned char ) pProjInp->usRes_flag;
/* convert lLon_orient to 3 chars */
set_bytes(pProjInp->lLon_orient, 3, Polar->achLon_orient);
/* convert ulDx to 3 char */
set_bytes(pProjInp->ulDx, 3, Polar->achDx);
/* convert ulDy to 3chars */
set_bytes(pProjInp->ulDy, 3, Polar->achDy);
Polar->chProj_flag = ( unsigned char ) pProjInp->usProj_flag;
Polar->chScan_mode = ( unsigned char ) pProjInp->usScan_mode;
/* 4 bytes of zero */
memset((void*) Polar->achZero, '\0', 4);
/*
*
* F.5 DEBUG print GRIB Projection block
*/
DPRINT3("\t%s: achNx [%02d,%02d]\n",func, Polar->achNx[0],Polar->achNx[1]);
DPRINT3("\t%s: achNy [%02d,%02d]\n",func, Polar->achNy[0],Polar->achNy[1]);
DPRINT4("\t%s: achLat1 [%02d,%02d,%02d]\n",func, Polar->achLat1[0],
Polar->achLat1[1], Polar->achLat1[2]);
DPRINT4("\t%s: achLon1 [%02d,%02d,%02d]\n",func, Polar->achLon1[0],
Polar->achLon1[1] , Polar->achLon1[2]);
DPRINT2("\t%s: chRes_flag [%02d]\n",func, Polar->chRes_flag);
DPRINT4("\t%s: achLon_orient [%02d,%02d,%02d]\n",func,
Polar->achLon_orient[0], Polar->achLon_orient[1], Polar->achLon_orient[2]);
DPRINT4("\t%s: achDx [%02d,%02d,%02d]\n",func, Polar->achDx[0],
Polar->achDx[1], Polar->achDx[2]);
DPRINT4("\t%s: achDy [%02d,%02d,%02d]\n",func, Polar->achDy[0],
Polar->achDy[1], Polar->achDy[2]);
DPRINT2("\t%s: chProj_flag [%02d]\n",func, Polar->chProj_flag);
DPRINT2("\t%s: chScan_mode [%02d]\n",func, Polar->chScan_mode);
DPRINT5("\t%s: achZero [%02d,%02d,%02d,%02d]\n",func, Polar->achZero[0],
Polar->achZero[1], Polar->achZero[2], Polar->achZero[3]);
/*******/
/*
*
* F.7 STORE size of POLAR struct in lProj_size
*/
*lProj_size = sizeof (POLAR);
BYE:
DPRINT3 (" Exiting %s (lProj_size=%ld), stat=%d\n", func,
*lProj_size, nStatus);
/*
*
* F.8 RETURN Stat ! 0 or 1
*/
return ( nStatus );
/*
*
* END OF FUNCTION
*
*
*/
}
/*
*
****************************************************************************
* G. FUNCTION: inp2grib_Latlon
* This routine fills the Latitude Longitude Projection structure for
* the GDS.
*
* INTERFACE:
* int inp2grib_Latlon ( ppvGDS_Proj_Input, pLatlon, lProj_size ,errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) void **ppvGDS_Proj_Input;
* holds input projection data
* (O) LATLON *pLatlon;
* to be filled with Lat/Lon projection info
* (O) long *lProj_size;
* to be filled with size of structure LATLON
* (O) char *errmsg;
* empty array, filled if error occurred
*
* RETURN CODE:
* 0> success, pLatlon and lProj_size filled;
* 1> got null pointers, errmsg filled;
****************************************************************************/
#if PROTOTYPE_NEEDED
int inp2grib_Latlon (void **ppvGDS_Proj_Input, LATLON *pLatlon,
long *lProj_size, char *errmsg)
#else
int inp2grib_Latlon (ppvGDS_Proj_Input, pLatlon, lProj_size, errmsg)
void **ppvGDS_Proj_Input; LATLON *pLatlon;
long *lProj_size; char *errmsg;
#endif
{
GDS_LATLON_INPUT *Inp = 0;
int lTemp = 0;
char *func= "inp2grib_Latlon";
/*
*
* G.1 INIT status to success
*/
int nStatus = 0;
DPRINT1 ( " Entering %s.....\n", func );
/*
*
* G.2 ASSIGN arguments to local pointers
*/
Inp = (GDS_LATLON_INPUT *) *ppvGDS_Proj_Input;
/*
DPRINT3("\n%s: usData_type = %u (%s)\n", func, Inp->usData_type,
prjn_name[Inp->usData_type] );
DPRINT2("\t%s: usNi = %u\n",func, Inp->usNi );
DPRINT2("\t%s: usNj = %u\n",func, Inp->usNj );
DPRINT2("\t%s: lLat1 = %d\n",func, Inp->lLat1 );
DPRINT2("\t%s: lLon1 = %d\n",func, Inp->lLon1 );
DPRINT2("\t%s: lLat2 = %d\n",func, Inp->lLat2 );
DPRINT2("\t%s: lLon2 = %d\n",func, Inp->lLon2 );
DPRINT2("\t%s: iDi = %u\n",func, Inp->iDi );
DPRINT2("\t%s: iDj = %u\n",func, Inp->iDj );
DPRINT2("\t%s: usRes_flag = %u\n",func, Inp->usRes_flag );
DPRINT2("\t%s: usScan_mode = %u\n",func, Inp->usScan_mode );
DPRINT2("\t%s: lLat_southpole = %ld\n",func, Inp->lLat_southpole);
DPRINT2("\t%s: lLon_southpole = %ld\n",func, Inp->lLon_southpole);
DPRINT2("\t%s: lRotate = %ld\n",func, Inp->lRotate );
DPRINT2("\t%s: lPole_lat = %ld\n",func, Inp->lPole_lat );
DPRINT2("\t%s: lPole_lon = %ld\n",func, Inp->lPole_lon );
DPRINT2("\t%s: lStretch = %ld\n",func, Inp->lStretch );
*/
/*
*
* G.3 IF (pointers passed in are null) THEN
* SET status to 1
* RETURN
* ENDIF
*/
if ( !Inp || !pLatlon) {
DPRINT1 ("%s: lLatlon_inp || pLatlon is null\n",func);
sprintf(errmsg, "%s: lLatlon_inp || pLatlon is null\n", func);
nStatus = 1;
goto BYE;
}
/*
*
* G.4 FILL local struct from Inp
*/
/* convert usNi & usNj to 2 chars */
set_bytes(Inp->usNi, 2, pLatlon->achNi);
set_bytes(Inp->usNj, 2, pLatlon->achNj);
/* convert lLat1 to 3chars */
set_bytes(Inp->lLat1, 3, pLatlon->achLat1);
/* convert lLon1 to 3chars */
set_bytes(Inp->lLon1, 3, pLatlon->achLon1);
pLatlon->chRes_flag = ( unsigned char ) Inp->usRes_flag;
/* convert lLat2 to 3chars */
set_bytes(Inp->lLat2, 3, pLatlon->achLat2);
/* convert lLon2 to 3chars */
set_bytes(Inp->lLon2, 3, pLatlon->achLon2);
/* convert lon increment to 2chars */
set_bytes(Inp->iDi, 2, pLatlon->achDi);
/* convert lat increment to 2chars */
set_bytes(Inp->iDj, 2, pLatlon->achDj);
/* 1 byte scan mode */
pLatlon->chScan_mode = ( unsigned char ) Inp->usScan_mode;
/* 4 bytes of reserved zero */
memset ((void*)pLatlon->achZero, '\0', 4);
/* convert lLat_southpole to 3chars */
set_bytes(Inp->lLat_southpole, 3, pLatlon->achLat_southpole);
/* convert lLon_southpole to 3chars */
set_bytes(Inp->lLon_southpole, 3, pLatlon->achLon_southpole);
/* convert lRotate to 4chars */
set_bytes(Inp->lRotate, 4, pLatlon->achRotate);
/* convert lPole_lat to 3chars */
set_bytes(Inp->lPole_lat, 3, pLatlon->achPole_lat);
/* convert lPole_lon to 3chars */
set_bytes(Inp->lPole_lon, 3, pLatlon->achPole_lon);
/* convert lStretch to 4 chars */
set_bytes(Inp->lStretch, 4, pLatlon->achStretch);
/*
*
* G.5 DEBUG print Input Proj Block & their equivalence in the Char array;
*/
DPRINT3("\t%s: achNi [%02d,%02d]\n",func,pLatlon->achNi[0],pLatlon->achNi[1]);
DPRINT3("\t%s: achNj [%02d,%02d]\n",func,pLatlon->achNj[0],pLatlon->achNj[1]);
DPRINT4("\t%s: achLat1 [%02d,%02d,%02d]\n",
func, pLatlon->achLat1[0],pLatlon->achLat1[1],pLatlon->achLat1[2]);
DPRINT4("\t%s: achLon1 [%02d,%02d,%02d]\n", func,
pLatlon->achLon1[0],pLatlon->achLon1[1],pLatlon->achLon1[2]);
DPRINT2("\t%s: chRes_flag [%02d]\n", func, pLatlon->chRes_flag );
DPRINT4("\t%s: achLat2 [%02d,%02d,%02d]\n",
func, pLatlon->achLat2[0], pLatlon->achLat2[1], pLatlon->achLat2[2]);
DPRINT4("\t%s: achLon2 [%02d,%02d,%02d]\n",
func, pLatlon->achLon2[0], pLatlon->achLon2[1], pLatlon->achLon2[2]);
DPRINT3("\t%s: achDi [%02d,%02d]\n",func,pLatlon->achDi[0],pLatlon->achDi[1]);
DPRINT3("\t%s: achDj [%02d,%02d]\n",func,pLatlon->achDj[0],pLatlon->achDj[1]);
DPRINT2("\t%s: chScan_mode [%02d]\n", func, pLatlon->chScan_mode);
DPRINT5("\t%s: achZero [%02d,%02d,%02d,%02d]\n",
func, pLatlon->achZero[0],pLatlon->achZero[1],pLatlon->achZero[2],
pLatlon->achZero[3]);
DPRINT4("\t%s achLat_southpole [%02d,%02d,%02d]\n",
func, pLatlon->achLat_southpole[0],pLatlon->achLat_southpole[1],
pLatlon->achLat_southpole[2]);
DPRINT4("\t%s achLon_southpole [%02d,%02d,%02d]\n",
func, pLatlon->achLon_southpole[0],pLatlon->achLon_southpole[1],
pLatlon->achLon_southpole[2]);
DPRINT5("\t%s achRotate [%02d,%02d,%02d,%02d]\n",
func, pLatlon->achRotate[0],pLatlon->achRotate[1],
pLatlon->achRotate[2], pLatlon->achRotate[3]);
DPRINT4("\t%s achPole_lat [%02d,%02d,%02d]\n",
func, pLatlon->achPole_lat[0],pLatlon->achPole_lat[1],
pLatlon->achPole_lat[2]);
DPRINT4("\t%s achPole_lon [%02d,%02d,%02d]\n",
func, pLatlon->achPole_lon[0],pLatlon->achPole_lon[1],
pLatlon->achPole_lon[2]);
DPRINT5("\t%s achStretch [%02d,%02d,%02d,%02d]\n",
func, pLatlon->achStretch[0],pLatlon->achStretch[1],
pLatlon->achStretch[2], pLatlon->achStretch[3]);
/*******/
/*
*
* G.6 STORE size of LATLON struct in lProj_size
*/
*lProj_size = sizeof (LATLON);
BYE:
DPRINT3 (" Exiting %s (lProj_size=%ld), stat=%d\n", func,
*lProj_size, nStatus);
/*
*
* G.7 RETURN stat
*/
return ( nStatus );
/*
*
* END OF FUNCTION
*
*
*/
}
/*
*
****************************************************************************
* F. FUNCTION: inp2grib_Mercator
* This routine fills the special Mercator Projection structure for
* the GDS.
*
* INTERFACE:
* int inp2grib_Mercator ( ppvGDS_Proj_Input, Polar, lProj_size ,errmsg)
*
* ARGUMENTS (I=input, O=output, I&O=input and output):
* (I) void **ppvGDS_Proj_Input;
* holds input projection data
* (O) MERCATOR *Mercator;
* to be filled with Polar Stereographic projection info
* (O) long *lProj_size;
* to be filled with size of structure POLAR
* (O) char *errmsg
* empty array, filled if error occurred
*
* RETURN CODE:
* 0> success, Mercator and lProj_size filled;
* 1> pointers are null, errmsg filled;
****************************************************************************/
#if PROTOTYPE_NEEDED
int inp2grib_Mercator (void **ppvGDS_Proj_Input, MERCATOR *Mercator,
long *lProj_size , char *errmsg)
#else
int inp2grib_Mercator (ppvGDS_Proj_Input, Mercator, lProj_size , errmsg)
void **ppvGDS_Proj_Input; MERCATOR *Mercator;
long *lProj_size ; char *errmsg;
#endif
{
/*
*
* F.1 INIT variables !default stat=good
*/
mercator *ProjInp = 0;
int lTemp = 0;
int nStatus = 0;
char *func="inp2grib_PolarSt";
DPRINT1 ("\t Entering %s.....\n", func);
/*
*
* F.2 POINT local pProjInp to incoming ppvGDS_Proj_Input
*/
ProjInp = ( mercator *) *ppvGDS_Proj_Input;
/*
*
* F.3 IF (true grib Mercator proj block OR input Polar block is null) THEN
* SET Status= 1
* RETURN;
* ENDIF
*/
if (!Mercator || !ProjInp )
{
DPRINT1 ( "%s: Mercator or ProjInp is null\n", func);
sprintf(errmsg,"%s: Mercator or ProjInp is null\n", func);
nStatus= 1; goto BYE;
}
/*
*
* F.4 FILL local struct from pProjInp
*/
/* convert cols to 2 chars */
set_bytes(ProjInp->cols, 2, Mercator->achNi);
/* convert rows to 2 chars */
set_bytes(ProjInp->rows, 2, Mercator->achNj);
/* convert first_lat to 3 chars */
set_bytes(ProjInp->first_lat, 3, Mercator->achLat1);
/* convert first_lon to 3 chars */
set_bytes(ProjInp->first_lon, 3, Mercator->achLon1);
Mercator->chRes_flag = ( unsigned char ) ProjInp->usRes_flag;
/* convert La2 to 3 chars */
set_bytes(ProjInp->La2, 3, Mercator->achLat2);
/* convert Lo2 to 3 chars */
set_bytes(ProjInp->Lo2, 3, Mercator->achLon2);
/* convert lLon_orient to 3 chars */
set_bytes(ProjInp->latin, 3, Mercator->achLatin);
/* convert zero fill */
Mercator->achZero1 = ( unsigned char ) ProjInp->usZero1;
Mercator->chScan_mode = ( unsigned char ) ProjInp->usScan_mode;
/* convert ulDx to 3 char */
set_bytes((int)(ProjInp->lon_inc + 0.5), 3, Mercator->achDi);
/* convert ulDy to 3chars */
set_bytes((int)(ProjInp->lat_inc + 0.5), 3, Mercator->achDj);
Mercator->chScan_mode = ( unsigned char ) ProjInp->usScan_mode;
/* 8 bytes of zero */
memset((void*) Mercator->achZero2, '\0', 8);
/*
*
* F.5 DEBUG print GRIB Projection block
*/
DPRINT3("\t%s: achNi [%02d,%02d]\n",func,Mercator->achNi[0],Mercator->achNi[1]);
DPRINT3("\t%s: achNj [%02d,%02d]\n",func, Mercator->achNj[0],Mercator->achNj[1]);
DPRINT4("\t%s: achLat1 [%02d,%02d,%02d]\n",func, Mercator->achLat1[0],
Mercator->achLat1[1], Mercator->achLat1[2]);
DPRINT4("\t%s: achLon1 [%02d,%02d,%02d]\n",func, Mercator->achLon1[0],
Mercator->achLon1[1] , Mercator->achLon1[2]);
DPRINT2("\t%s: chRes_flag [%02d]\n",func, Mercator->chRes_flag);
DPRINT4("\t%s: achLatint [%02d,%02d,%02d]\n",func,
Mercator->achLatin[0], Mercator->achLatin[1], Mercator->achLatin[2]);
DPRINT4("\t%s: achDi [%02d,%02d,%02d]\n",func, Mercator->achDi[0],
Mercator->achDi[1], Mercator->achDi[2]);
DPRINT4("\t%s: achDj [%02d,%02d,%02d]\n",func, Mercator->achDj[0],
Mercator->achDj[1], Mercator->achDj[2]);
DPRINT5("\t%s: achZero2 [%02d,%02d,%02d,%02d]\n",func, Mercator->achZero2[0],
Mercator->achZero2[1], Mercator->achZero2[2], Mercator->achZero2[3]);
/*******/
/*
*
* F.7 STORE size of POLAR struct in lProj_size
*/
*lProj_size = sizeof (MERCATOR);
BYE:
DPRINT3 (" Exiting %s (lProj_size=%ld), stat=%d\n", func,
*lProj_size, nStatus);
/*
*
* F.8 RETURN Stat ! 0 or 1
*/
return ( nStatus );
/*
*
* END OF FUNCTION
*
*
*/
}
/*
Old round--this is different from standard gnu round (gnu round returns a
float). Depending on compile options, sometimes gnu round was used, other
times this function was used. Removed and replaced by lrint by T. Hutchinson,
WSI. 4/14/05.
long round(double value)
{
long retval;
retval=lrint(value);
return retval;
}
*/