1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cdi.h"
int
main(void)
{
char fname[] = "test_ens.grb2";
int filetype = CDI_FILETYPE_GRB2;
int nlat = 18, nlon = 2 * nlat;
double *data = NULL;
int nlevel;
int varID;
int streamID1, streamID2;
int gridID, zaxisID;
int nrecs, nvars;
int tsID;
int levelID;
int vlistID, taxisID;
SizeType numMissVals;
int instID;
size_t datasize = (size_t) nlon * (size_t) nlat;
data = (double *) malloc(datasize * sizeof(double));
memset(data, 0, datasize * sizeof(double));
gridID = gridCreate(GRID_GAUSSIAN, (int) datasize);
gridDefXsize(gridID, nlon);
gridDefYsize(gridID, nlat);
zaxisID = zaxisCreate(ZAXIS_SURFACE, 1);
instID = institutDef(252, 0, NULL, NULL);
vlistID = vlistCreate();
varID = vlistDefVar(vlistID, gridID, zaxisID, TIME_VARYING);
int perturbationNumber = 1;
int numberOfForecastsInEnsemble = 2;
int typeOfEnsembleForecast = 3;
cdiDefKeyInt(vlistID, varID, CDI_KEY_TYPEOFENSEMBLEFORECAST, typeOfEnsembleForecast);
cdiDefKeyInt(vlistID, varID, CDI_KEY_NUMBEROFFORECASTSINENSEMBLE, numberOfForecastsInEnsemble);
cdiDefKeyInt(vlistID, varID, CDI_KEY_PERTURBATIONNUMBER, perturbationNumber);
cdiInqKeyInt(vlistID, varID, CDI_KEY_PERTURBATIONNUMBER, &perturbationNumber);
cdiInqKeyInt(vlistID, varID, CDI_KEY_NUMBEROFFORECASTSINENSEMBLE, &numberOfForecastsInEnsemble);
cdiInqKeyInt(vlistID, varID, CDI_KEY_TYPEOFENSEMBLEFORECAST, &typeOfEnsembleForecast);
vlistDefInstitut(vlistID, instID);
taxisID = taxisCreate(TAXIS_ABSOLUTE);
vlistDefTaxis(vlistID, taxisID);
streamID1 = streamOpenWrite(fname, filetype);
if (streamID1 < 0)
{
fprintf(stderr, "Open failed on %s\n", fname);
fprintf(stderr, "%s\n", cdiStringError(streamID1));
return (-1);
}
streamDefVlist(streamID1, vlistID);
(void) streamDefTimestep(streamID1, 0);
streamWriteVar(streamID1, varID, data, 0);
return (0);
vlistID = streamInqVlist(streamID1);
filetype = streamInqFiletype(streamID1);
streamID2 = streamOpenWrite(fname, filetype);
if (streamID2 < 0)
{
fprintf(stderr, "Open failed on %s\n", fname);
fprintf(stderr, "%s\n", cdiStringError(streamID2));
return (-1);
}
streamDefVlist(streamID2, vlistID);
nvars = vlistNvars(vlistID);
for (varID = 0; varID < nvars; varID++)
{
int varGridID = vlistInqVarGrid(vlistID, varID);
int varZaxisID = vlistInqVarZaxis(vlistID, varID);
size_t gridsize = (size_t) gridInqSize(varGridID);
size_t varNlevel = (size_t) zaxisInqSize(varZaxisID);
if (gridsize * varNlevel > datasize) datasize = gridsize * varNlevel;
}
data = (double *) malloc(datasize * sizeof(double));
memset(data, 0, datasize * sizeof(double));
taxisID = vlistInqTaxis(vlistID);
tsID = 0;
while ((nrecs = streamInqTimestep(streamID1, tsID)))
{
/* int vdate = */ taxisInqVdate(taxisID);
/* int vtime = */ taxisInqVtime(taxisID);
streamDefTimestep(streamID2, tsID);
for (varID = 0; varID < nvars; varID++)
{
streamReadVar(streamID1, varID, data, &numMissVals);
/* int code = */ vlistInqVarCode(vlistID, varID);
gridID = vlistInqVarGrid(vlistID, varID);
zaxisID = vlistInqVarZaxis(vlistID, varID);
/* int gridtype = */ gridInqType(gridID);
/* int gridsize = */ gridInqSize(gridID);
nlevel = zaxisInqSize(zaxisID);
/* double missval = */ vlistInqVarMissval(vlistID, varID);
for (levelID = 0; levelID < nlevel; levelID++)
{
/* int level = (int) */ zaxisInqLevel(zaxisID, levelID);
/* int offset = gridsize*levelID; */
}
streamWriteVar(streamID2, varID, data, numMissVals);
}
tsID++;
}
free(data);
streamClose(streamID2);
streamClose(streamID1);
return (0);
}
|
