int ex_get_partial_one_attr( int exoid,
ex_entity_type obj_type,
ex_entity_id obj_id,
int64_t start_num,
int64_t num_ent,
int attrib_index,
void* attrib )
{
int status;
int attrid, obj_id_ndx;
int temp;
size_t num_entries_this_obj, num_attr;
size_t start[2], count[2];
ptrdiff_t stride[2];
char errmsg[MAX_ERR_LENGTH];
const char* dnumobjent;
const char* dnumobjatt;
const char* vattrbname;
exerrval = 0; /* clear error code */
if (num_ent == 0)
return 0;
/* Determine index of obj_id in vobjids array */
if (obj_type != EX_NODAL) {
obj_id_ndx = ex_id_lkup(exoid,obj_type,obj_id);
if (exerrval != 0) {
if (exerrval == EX_NULLENTITY) {
sprintf(errmsg,
"Warning: no attributes found for NULL %s %"PRId64" in file id %d",
ex_name_of_object(obj_type),obj_id,exoid);
ex_err("ex_get_partial_one_attr",errmsg,EX_NULLENTITY);
return (EX_WARN); /* no attributes for this object */
} else {
sprintf(errmsg,
"Warning: failed to locate %s id%"PRId64" in id array in file id %d",
ex_name_of_object(obj_type),obj_id, exoid);
ex_err("ex_get_partial_one_attr",errmsg,exerrval);
return (EX_WARN);
}
}
}
switch (obj_type) {
case EX_SIDE_SET:
dnumobjent = DIM_NUM_SIDE_SS(obj_id_ndx);
dnumobjatt = DIM_NUM_ATT_IN_SS(obj_id_ndx);
vattrbname = VAR_SSATTRIB(obj_id_ndx);
break;
case EX_NODE_SET:
dnumobjent = DIM_NUM_NOD_NS(obj_id_ndx);
dnumobjatt = DIM_NUM_ATT_IN_NS(obj_id_ndx);
vattrbname = VAR_NSATTRIB(obj_id_ndx);
break;
case EX_EDGE_SET:
dnumobjent = DIM_NUM_EDGE_ES(obj_id_ndx);
dnumobjatt = DIM_NUM_ATT_IN_ES(obj_id_ndx);
vattrbname = VAR_ESATTRIB(obj_id_ndx);
break;
case EX_FACE_SET:
dnumobjent = DIM_NUM_FACE_FS(obj_id_ndx);
dnumobjatt = DIM_NUM_ATT_IN_FS(obj_id_ndx);
vattrbname = VAR_FSATTRIB(obj_id_ndx);
break;
case EX_ELEM_SET:
dnumobjent = DIM_NUM_ELE_ELS(obj_id_ndx);
dnumobjatt = DIM_NUM_ATT_IN_ELS(obj_id_ndx);
vattrbname = VAR_ELSATTRIB(obj_id_ndx);
break;
case EX_NODAL:
dnumobjent = DIM_NUM_NODES;
dnumobjatt = DIM_NUM_ATT_IN_NBLK;
vattrbname = VAR_NATTRIB;
break;
case EX_EDGE_BLOCK:
dnumobjent = DIM_NUM_ED_IN_EBLK(obj_id_ndx);
dnumobjatt = DIM_NUM_ATT_IN_EBLK(obj_id_ndx);
vattrbname = VAR_EATTRIB(obj_id_ndx);
break;
case EX_FACE_BLOCK:
dnumobjent = DIM_NUM_FA_IN_FBLK(obj_id_ndx);
dnumobjatt = DIM_NUM_ATT_IN_FBLK(obj_id_ndx);
vattrbname = VAR_FATTRIB(obj_id_ndx);
break;
case EX_ELEM_BLOCK:
dnumobjent = DIM_NUM_EL_IN_BLK(obj_id_ndx);
dnumobjatt = DIM_NUM_ATT_IN_BLK(obj_id_ndx);
vattrbname = VAR_ATTRIB(obj_id_ndx);
break;
default:
exerrval = 1005;
sprintf(errmsg,
"Internal Error: unrecognized object type in switch: %d in file id %d",
obj_type,exoid);
ex_err("ex_get_partial_one_attr",errmsg,EX_MSG);
return (EX_FATAL); /* number of attributes not defined */
}
/* inquire id's of previously defined dimensions */
if (ex_get_dimension(exoid, dnumobjent,"entries", &num_entries_this_obj, &temp, "ex_get_partial_one_attr") != NC_NOERR)
return EX_FATAL;
if (start_num + num_ent -1 > num_entries_this_obj) {
exerrval = EX_BADPARAM;
sprintf(errmsg,
"Error: start index (%"PRId64") + count (%"PRId64") is larger than total number of entities (%"ST_ZU") in file id %d",
start_num, num_ent, num_entries_this_obj, exoid);
ex_err("ex_get_partial_one_attr",errmsg,exerrval);
return (EX_FATAL);
}
if (ex_get_dimension(exoid, dnumobjatt,"attributes", &num_attr, &temp, "ex_get_partial_one_attr") != NC_NOERR)
return EX_FATAL;
if (attrib_index < 1 || attrib_index > (int)num_attr) {
exerrval = EX_FATAL;
sprintf(errmsg,
"Error: Invalid attribute index specified: %d. Valid range is 1 to %d for %s %"PRId64" in file id %d",
attrib_index, (int)num_attr, ex_name_of_object(obj_type), obj_id, exoid);
ex_err("ex_get_partial_one_attr",errmsg,exerrval);
return (EX_FATAL);
}
if ((status = nc_inq_varid(exoid, vattrbname, &attrid)) != NC_NOERR) {
exerrval = status;
sprintf(errmsg,
"Error: failed to locate attributes for %s %"PRId64" in file id %d",
ex_name_of_object(obj_type),obj_id,exoid);
ex_err("ex_get_partial_one_attr",errmsg,exerrval);
return (EX_FATAL);
}
/* read in the attributes */
start[0] = start_num-1;
start[1] = attrib_index-1;
count[0] = num_ent;
count[1] = 1;
stride[0] = 1;
stride[1] = num_attr;
if (ex_comp_ws(exoid) == 4) {
status = nc_get_vars_float(exoid, attrid, start, count, stride, attrib);
} else {
status = nc_get_vars_double(exoid, attrid, start, count, stride, attrib);
}
if (status != NC_NOERR) {
exerrval = status;
sprintf(errmsg,
"Error: failed to get attribute %d for %s %"PRId64" in file id %d",
attrib_index, ex_name_of_object(obj_type), obj_id,exoid);
ex_err("ex_get_partial_one_attr",errmsg,exerrval);
return (EX_FATAL);
}
return(EX_NOERR);
}
int
main()
{
int ncid;
int varid;
int i;
int ncstatus;
size_t start[5], count[5];
ptrdiff_t stride[5];
int pass = 1;
int nelems = XSIZE*YSIZE;
int idim, ndim;
float *dat = (float*)malloc(sizeof(float)*nelems);
float sdat[10];
char* svc;
/* Find Test Server */
svc = getenv("THREDDSTESTSERVER");
if(svc != NULL) {
const char* testserver[2];
testserver[0] = svc;
testserver[1] = NULL;
svc = NC_findtestserver("thredds",testserver);
} else
svc = NC_findtestserver("thredds",NULL);
if(svc == NULL) {
fprintf(stderr,"Cannot locate test server\n");
exit(0);
}
strcpy(url,URL);
snprintf(url,sizeof(url),URL,svc);
for (idim=0; idim<5; idim++) {
start[idim] = 0;
count[idim] = 1;
stride[idim] = 1;
}
ndim=2;
printf(" \n");
printf("********************\n");
printf("open URL %s\n",url);
printf(" \n");
ncstatus = nc_open(url, NC_NOWRITE, &ncid);
if(ncstatus != NC_NOERR) {
fprintf(stderr,"Could not open: %s; server may be down; test ignored\n",url);
exit(0);
}
ncstatus = nc_inq_varid(ncid, VAR1, &varid);
ndim=2;
#ifdef VERBOSE
printf(" \n");
printf("********************\n");
printf("Read %s data w/o strides\n",VAR1);
printf(" \n");
#endif
start[0] = 0;
start[1] = 0;
start[2] = 0;
start[3] = 0;
count[0] = XSIZE;
count[1] = YSIZE;
stride[0] = 1;
stride[1] = 1;
#ifdef VERBOSE
for (idim=0; idim<ndim; idim++)
printf("start[%1d]=%3lu count[%1d]=%3lu stride[%1d]=%3lu\n",
idim,start[idim],idim,count[idim],idim,stride[idim]);
#endif
ncstatus = nc_get_vars_float (ncid, varid, start, count, stride, (float*) dat);
#ifdef VERBOSE
printf(" \n");
printf("********************\n");
printf("Print some of %s\n",VAR1);
printf(" \n");
for (i=0; i<10; i++)
printf("%s[%d] = %f\n",VAR1,i,dat[i]);
printf(" \n");
for (i=(nelems-11); i<(nelems-1); i++)
printf("%s[%d] = %f\n",VAR1,i,dat[i]);
printf(" \n");
#endif
memset((void*)dat,0,sizeof(dat));
/* Read a second variable */
ncstatus = nc_inq_varid(ncid, VAR2, &varid);
ndim=2;
#ifdef VERBOSE
printf(" \n");
printf("********************\n");
printf("Read %s data w/o strides\n",VAR2);
printf(" \n");
#endif
start[0] = 0;
start[1] = 0;
start[2] = 0;
start[3] = 0;
count[0] = XSIZE;
count[1] = YSIZE;
stride[0] = 1;
stride[1] = 1;
#ifdef VERBOSE
for (idim=0; idim<ndim; idim++)
printf("start[%d]=%3lu count[%d]=%3lu stride[%d]=%3lu\n",
idim, start[idim], idim, count[idim], idim, stride[idim]);
#endif
ncstatus = nc_get_vars_float (ncid, varid, start, count, stride, (float*) dat);
#ifdef VERBOSE
printf(" \n");
printf("********************\n");
printf("Print some of %s\n",VAR2);
printf(" \n");
for (i=0; i<10; i++)
printf("%s[%d] = %f\n",VAR2,i,dat[i]);
printf(" \n");
printf(" \n");
for (i=(nelems-11); i<(nelems-1); i++)
printf("%s[%d] = %f\n",VAR2,i,dat[i]);
printf(" \n");
#endif
memset((void*)dat,0,sizeof(dat));
/* close and reopen the dataset, then the below read is correct */
#ifdef VERBOSE
printf(" \n");
printf("********************\n");
printf("Close and reopen the dataset\n");
#endif
ncstatus = nc_close (ncid);
ncstatus = nc_open(url, NC_NOWRITE, &ncid);
/* ----------------------------------------------------- */
/* Read a subset of the data with strides */
ncstatus = nc_inq_varid(ncid, VAR1, &varid);
#ifdef VERBOSE
printf(" \n");
printf("********************\n");
printf("Read a subset of %s data with strides\n",VAR1);
printf(" \n");
#endif
start[0] = 250;
start[1] = 704;
count[0] = 5;
count[1] = 2;
stride[0] = 2;
stride[1] = 4;
#ifdef VERBOSE
for (idim=0; idim<ndim; idim++)
printf("start[%1d]=%3lu count[%1d]=%3lu stride[%1d]=%3lu\n",
idim,start[idim],idim,count[idim],idim,stride[idim]);
#endif
memset((void*)sdat,0,sizeof(sdat));
ncstatus = nc_get_vars_float (ncid, varid, start, count, stride, (float*) sdat);
printf("status = %d\n", ncstatus);
/* Verify that all read values are 50 <= n < 51 */
for (i=0; i<10; i++) {
if(sdat[i] <= 50.0 || sdat[i] > 51.0) {
printf("Out of range: %s[%d] = %f\n",VAR1, i,sdat[i]);
pass = 0;
}
}
#ifdef VERBOSE
printf(" \n");
printf("********************\n");
printf("Print values read. They should all be 50.xxxx \n");
printf(" \n");
for (i=0; i<10; i++)
printf("%s[%d] = %f\n",VAR1,i,sdat[i]);
#endif
ncstatus = nc_close (ncid);
if(!pass) {
printf("*** FAIL: %s value out of range.\n",VAR1);
exit(1);
}
printf("*** PASS\n");
free(dat);
exit(0);
}
int
main()
{
int ncid;
int varid;
int i,fail;
int err;
size_t start[5], count[5];
ptrdiff_t stride[5], imap[5];
int idim, ndim;
float dat[20];
#ifdef DEBUG
oc_loginit();
oc_setlogging(1);
oc_logopen(NULL);
#endif
printf("*** Test: varm on URL: %s\n",URL);
check(err = nc_open(URL, NC_NOWRITE, &ncid),__FILE__,__LINE__);
check(err = nc_inq_varid(ncid, VAR, &varid),__FILE__,__LINE__);
for (idim=0; idim<4; idim++) {
start[idim] = 0;
count[idim] = 1;
stride[idim] = 1;
imap[idim] = 1;
}
ndim=3;
printf("*** Testing: stride case 1\n");
start[1] = 44;
start[2] = 66;
count[0] = 12;
#ifdef STANDALONE
printf("start = ");
for(i=0;i<ndim;i++) printf(" %d",(int)start[i]);
printf("\n");
printf("count = ");
for(i=0;i<ndim;i++) printf(" %d",(int)count[i]);
printf("\n");
printf("stride = ");
for(i=0;i<ndim;i++) printf(" %d",(int)stride[i]);
printf("\n");
printf("map = ");
for(i=0;i<ndim;i++) printf(" %d",(int)imap[i]);
printf("\n");
err = nc_get_vars_float (ncid, varid, start, count, stride,
(float*) dat);
printf("vars: %s =",VAR);
for(i=0;i<12;i++) printf(" %f",dat[i]);
printf("\n");
#endif
check(err = nc_get_varm_float (ncid, varid, start, count, stride, imap,
(float*) dat),__FILE__,__LINE__);
#ifdef STANDALONE
printf("varm: %s =",VAR);
for(i=0;i<12;i++) printf(" %f",dat[i]);
printf("\n");
#endif
fail=0;
for(i=0;i<12;i++) {
float delta = (dat[i] - expected_stride1[i]);
if(delta > 0.0005 || delta < -0.0005) {
fprintf(stderr,"*** Failure: unexpected value: delta=%g dat[%d]=%g expected[%d]=%g\n",
delta, i, dat[i], i, expected_stride1[i]);
fail = 1;
}
}
printf("*** %s: stride case 1\n",(fail?"Fail":"Pass"));
printf("*** Testing: stride case 2\n");
/* case with strides #1 where len % stride == 0 */
start[1] = 44;
start[2] = 66;
count[0] = 6;
stride[0] = 2;
#ifdef STANDALONE
printf("start = ");
for(i=0;i<ndim;i++) printf(" %d",(int)start[i]);
printf("\n");
printf("count = ");
for(i=0;i<ndim;i++) printf(" %d",(int)count[i]);
printf("\n");
printf("stride = ");
for(i=0;i<ndim;i++) printf(" %d",(int)stride[i]);
printf("\n");
printf("map = ");
for(i=0;i<ndim;i++) printf(" %d",(int)imap[i]);
printf("\n");
check(err = nc_get_vars_float(ncid, varid, start, count, stride,
(float*) dat),__FILE__,__LINE__);
printf("strided.vars: %s =",VAR);
for(i=0;i<6;i++) printf(" %f",dat[i]);
printf("\n");
#endif
check(err = nc_get_varm_float(ncid, varid, start, count, stride, imap,
(float*) dat),__FILE__,__LINE__);
#ifdef STANDALONE
printf("strided.varm: %s =",VAR);
for(i=0;i<6;i++) printf(" %f",dat[i]);
printf("\n");
#endif
fail=0;
for(i=0;i<6;i++) {
float delta = (dat[i] - expected_stride2[i]);
if(delta > 0.0005 || delta < -0.0005) {
fprintf(stderr,"*** Failure: unexpected value: delta=%g dat[%d]=%g expected[%d]=%g\n",
delta, i, dat[i], i, expected_stride2[i]);
fail=1;
}
}
printf("*** %s: stride case 2\n",(fail?"Fail":"Pass"));
/* case with strides #2: len % stride != 0 */
printf("*** Testing: stride case 3\n");
start[1] = 44;
start[2] = 66;
count[0] = 3;
stride[0] = 5;
#ifdef STANDALONE
printf("start = ");
for(i=0;i<ndim;i++) printf(" %d",(int)start[i]);
printf("\n");
printf("count = ");
for(i=0;i<ndim;i++) printf(" %d",(int)count[i]);
printf("\n");
printf("stride = ");
for(i=0;i<ndim;i++) printf(" %d",(int)stride[i]);
printf("\n");
printf("map = ");
for(i=0;i<ndim;i++) printf(" %d",(int)imap[i]);
printf("\n");
check(err = nc_get_vars_float(ncid, varid, start, count, stride,
(float*) dat),__FILE__,__LINE__);
printf("strided.vars: %s =",VAR);
for(i=0;i<3;i++) printf(" %f",dat[i]);
printf("\n");
#endif
check(err = nc_get_varm_float(ncid, varid, start, count, stride, imap,
(float*) dat),__FILE__,__LINE__);
#ifdef STANDALONE
printf("strided.varm: %s =",VAR);
for(i=0;i<3;i++) printf(" %f",dat[i]);
printf("\n");
#endif
fail=0;
for(i=0;i<3;i++) {
float delta = (dat[i] - expected_stride3[i]);
if(delta > 0.0005 || delta < -0.0005) {
fprintf(stderr,"*** Failure: stride case 2: unexpected value: delta=%g dat[%d]=%g expected[%d]=%g\n",
delta, i, dat[i], i, expected_stride3[i]);
fail=1;
}
}
printf("*** %s: stride case 3\n",(fail?"Fail":"Pass"));
return fail;
ncfail:
printf("*** nc function failure: %d %s\n",err,nc_strerror(err));
return 1;
}
int
nc3d_getvarmx(int ncid, int varid,
const size_t *start,
const size_t *edges,
const ptrdiff_t* stride,
const ptrdiff_t* map,
void* data,
nc_type dsttype0)
{
NCerror ncstat = NC_NOERR;
int i;
NC* drno;
NC* substrate;
NC3_INFO* substrate3;
NCDAPCOMMON* dapcomm;
NC_var* var;
CDFnode* cdfvar; /* cdf node mapping to var*/
NClist* varnodes;
nc_type dsttype;
size_t externsize;
size_t dimsizes[NC_MAX_VAR_DIMS];
Dapodometer* odom = NULL;
unsigned int ncrank;
NClist* ncdims = NULL;
size_t nelems;
#ifdef NEWVARM
char* localcopy; /* of whole variable */
#endif
ncstat = NC_check_id(ncid, (NC**)&drno);
if(ncstat != NC_NOERR) goto done;
dapcomm = (NCDAPCOMMON*)drno->dispatchdata;
ncstat = NC_check_id(drno->substrate, &substrate);
if(ncstat != NC_NOERR) goto done;
substrate3 = (NC3_INFO*)drno->dispatchdata;
var = NC_lookupvar(substrate3,varid);
if(var == NULL) {ncstat = NC_ENOTVAR; goto done;}
/* Locate var node via varid */
varnodes = dapcomm->cdf.ddsroot->tree->varnodes;
for(i=0;i<nclistlength(varnodes);i++) {
CDFnode* node = (CDFnode*)nclistget(varnodes,i);
if(node->array.basevar == NULL
&& node->nctype == NC_Atomic
&& node->ncid == varid) {
cdfvar = node;
break;
}
}
ASSERT((cdfvar != NULL));
ASSERT((strcmp(cdfvar->ncfullname,var->name->cp)==0));
if(nclistlength(cdfvar->array.dimsetplus) == 0) {
/* The variable is a scalar; consequently, there is only one
thing to get and only one place to put it. */
/* recurse with additional parameters */
return THROW(nc3d_getvarx(ncid,varid,
NULL,NULL,NULL,
data,dsttype0));
}
dsttype = (dsttype0);
/* Default to using the inquiry type for this var*/
if(dsttype == NC_NAT) dsttype = cdfvar->externaltype;
/* Validate any implied type conversion*/
if(cdfvar->etype != dsttype && dsttype == NC_CHAR) {
/* The only disallowed conversion is to/from char and non-byte
numeric types*/
switch (cdfvar->etype) {
case NC_STRING: case NC_URL:
case NC_CHAR: case NC_BYTE: case NC_UBYTE:
break;
default:
return THROW(NC_ECHAR);
}
}
externsize = nctypesizeof(dsttype);
/* Accumulate the dimension sizes and the total # of elements */
ncdims = cdfvar->array.dimsetall;
ncrank = nclistlength(ncdims);
nelems = 1; /* also Compute the number of elements being retrieved */
for(i=0;i<ncrank;i++) {
CDFnode* dim = (CDFnode*)nclistget(ncdims,i);
dimsizes[i] = dim->dim.declsize;
nelems *= edges[i];
}
/* Originally, this code repeatedly extracted single values
using get_var1. In an attempt to improve performance,
I have converted to reading the whole variable at once
and walking it locally.
*/
#ifdef NEWVARM
localcopy = (char*)malloc(nelems*externsize);
/* We need to use the varieties of get_vars in order to
properly do conversion to the external type
*/
switch (dsttype) {
case NC_CHAR:
ncstat = nc_get_vars_text(ncid,varid,start, edges, stride,
(char*)localcopy);
break;
case NC_BYTE:
ncstat = nc_get_vars_schar(ncid,varid,start, edges, stride,
(signed char*)localcopy);
break;
case NC_SHORT:
ncstat = nc_get_vars_short(ncid,varid, start, edges, stride,
(short*)localcopy);
break;
case NC_INT:
ncstat = nc_get_vars_int(ncid,varid,start, edges, stride,
(int*)localcopy);
break;
case NC_FLOAT:
ncstat = nc_get_vars_float(ncid,varid,start, edges, stride,
(float*)localcopy);
break;
case NC_DOUBLE:
ncstat = nc_get_vars_double(ncid,varid, start, edges, stride,
(double*)localcopy);
break;
default: break;
}
odom = dapodom_new(ncrank,start,edges,stride,NULL);
/* Walk the local copy */
for(i=0;i<nelems;i++) {
size_t voffset = dapodom_varmcount(odom,map,dimsizes);
void* dataoffset = (void*)(((char*)data) + (externsize*voffset));
char* localpos = (localcopy + externsize*i);
/* extract the indexset'th value from local copy */
memcpy(dataoffset,(void*)localpos,externsize);
/*
fprintf(stderr,"new: %lu -> %lu %f\n",
(unsigned long)(i),
(unsigned long)voffset,
*(float*)localpos);
*/
dapodom_next(odom);
}
#else
odom = dapodom_new(ncrank,start,edges,stride,NULL);
while(dapodom_more(odom)) {
size_t* indexset = odom->index;
size_t voffset = dapodom_varmcount(odom,map,dimsizes);
char internalmem[128];
char externalmem[128];
void* dataoffset = (void*)(((char*)data) + (externsize*voffset));
/* get the indexset'th value using variable's internal type */
ncstat = nc_get_var1(ncid,varid,indexset,(void*)&internalmem);
if(ncstat != NC_NOERR) goto done;
/* Convert to external type */
ncstat = dapconvert3(cdfvar->etype,dsttype,externalmem,internalmem);
if(ncstat != NC_NOERR) goto done;
memcpy(dataoffset,(void*)externalmem,externsize);
/*
fprintf(stderr,"old: %lu -> %lu %f\n",
(unsigned long)dapodom_count(odom),
(unsigned long)voffset,
*(float*)externalmem);
*/
dapodom_next(odom);
}
#endif
done:
return ncstat;
}
int
main()
{
int ncid;
int varid;
int i;
int ncstatus;
size_t start[5], count[5];
ptrdiff_t stride[5], tmp_ptrdiff_t;
int pass = 1;
int idim, ndim;
//float dat[301060];
float *dat = (float*)malloc(sizeof(float)*301060);
float sdat[10];
for (idim=0; idim<5; idim++) {
start[idim] = 0;
count[idim] = 1;
stride[idim] = 1;
}
ndim=2;
printf(" \n");
printf("********************\n");
printf("open URL %s\n",URL);
printf(" \n");
ncstatus = nc_open(URL, NC_NOWRITE, &ncid);
if(ncstatus != NC_NOERR) {
fprintf(stderr,"Could not open: %s; server may be down; test ignored\n",URL);
exit(0);
}
ncstatus = nc_inq_varid(ncid, "lon_rho", &varid);
ndim=2;
if(verbose) {
printf(" \n");
printf("********************\n");
printf("Read lon_rho data w/o strides\n");
printf(" \n");
}
start[0] = 0;
start[1] = 0;
start[2] = 0;
start[3] = 0;
count[0] = 336;
count[1] = 896;
stride[0] = 1;
stride[1] = 1;
if(verbose) {
for (idim=0; idim<ndim; idim++)
printf("start[%1d]=%3lu count[%1d]=%3lu stride[%1d]=%3lu\n",
idim,start[idim],idim,count[idim],idim,stride[idim]);
}
ncstatus = nc_get_vars_float (ncid, varid, start, count, stride, (float*) dat);
if(verbose) {
printf(" \n");
printf("********************\n");
printf("Print some of lon_rho\n");
printf(" \n");
for (i=0; i<10; i++)
printf("lon_rho[%d] = %f\n",i,dat[i]);
printf(" \n");
for (i=301045; i<301055; i++)
printf("lon_rho[%d] = %f\n",i,dat[i]);
printf(" \n");
}
memset((void*)dat,0,sizeof(dat));
/* Read a second variable */
ncstatus = nc_inq_varid(ncid, "lat_rho", &varid);
ndim=2;
if(verbose) {
printf(" \n");
printf("********************\n");
printf("Read lat_rho data w/o strides\n");
printf(" \n");
}
start[0] = 0;
start[1] = 0;
start[2] = 0;
start[3] = 0;
count[0] = 336;
count[1] = 896;
stride[0] = 1;
stride[1] = 1;
if(verbose) {
for (idim=0; idim<ndim; idim++)
printf("start[%d]=%3lu count[%d]=%3lu stride[%d]=%3lu\n",
idim, start[idim], idim, count[idim], idim, stride[idim]);
}
ncstatus = nc_get_vars_float (ncid, varid, start, count, stride, (float*) dat);
if(verbose) {
printf(" \n");
printf("********************\n");
printf("Print some of lat_rho\n");
printf(" \n");
for (i=0; i<10; i++)
printf("lat_rho[%d] = %f\n",i,dat[i]);
printf(" \n");
printf(" \n");
for (i=301045; i<301055; i++)
printf("lon_rho[%d] = %f\n",i,dat[i]);
printf(" \n");
}
memset((void*)dat,0,sizeof(dat));
/* close and reopen the dataset, then the below read is correct */
if(verbose) {
printf(" \n");
printf("********************\n");
printf("Close and reopen the dataset\n");
}
ncstatus = nc_close (ncid);
ncstatus = nc_open(URL, NC_NOWRITE, &ncid);
/* ----------------------------------------------------- */
/* Read a subset of the data with strides */
ncstatus = nc_inq_varid(ncid, "lon_rho", &varid);
if(verbose) {
printf(" \n");
printf("********************\n");
printf("Read a subset of lon_rho data with strides\n");
printf(" \n");
}
start[0] = 250;
start[1] = 704;
count[0] = 5;
count[1] = 2;
stride[0] = 2;
stride[1] = 4;
if(verbose) {
for (idim=0; idim<ndim; idim++)
printf("start[%1d]=%3lu count[%1d]=%3lu stride[%1d]=%3lu\n",
idim,start[idim],idim,count[idim],idim,stride[idim]);
}
memset((void*)sdat,0,sizeof(sdat));
ncstatus = nc_get_vars_float (ncid, varid, start, count, stride, (float*) sdat);
printf("status = %d\n", ncstatus);
/* Verify that all read values are 67 <= n < 68 */
for (i=0; i<10; i++) {
if(!(sdat[i] <= -67 && sdat[i] > -68)) {
printf("lon_rho[%d] = %f\n",i,sdat[i]);
pass = 0;
}
}
if(verbose) {
printf(" \n");
printf("********************\n");
printf("Print values read. They should all be -67.xxxx \n");
printf(" \n");
for (i=0; i<10; i++)
printf("lon_rho[%d] = %f\n",i,sdat[i]);
}
ncstatus = nc_close (ncid);
if(!pass) {
printf("*** FAIL: lon_rho value out of range.\n");
exit(1);
}
printf("*** PASS\n");
free(dat);
exit(0);
}
