/* This is part of the netCDF package. Copyright 2005-2011, University Corporation for Atmospheric Research/Unidata. See COPYRIGHT file for conditions of use. Test that NetCDF-4 can read HDF4 files. Ed Hartnett */ #include #include #include "err_macros.h" #include #include #include #include #define FILE_NAME "tst_interops2.h4" int main(int argc, char **argv) { printf("\n*** Testing HDF4/NetCDF-4 interoperability...\n"); printf("*** testing that netCDF can read a HDF4 file with some ints..."); { #define PRES_NAME "pres" #define LAT_LEN 3 #define LON_LEN 2 #define DIMS_2 2 int32 sd_id, sds_id; int32 dim_size[DIMS_2] = {LAT_LEN, LON_LEN}; int32 start[DIMS_2] = {0, 0}, edge[DIMS_2] = {LAT_LEN, LON_LEN}; int ncid, nvars_in, ndims_in, natts_in, unlimdim_in; size_t len_in; int data_out[LAT_LEN][LON_LEN], data_in[LAT_LEN][LON_LEN]; size_t nstart[DIMS_2] = {0, 0}, ncount[DIMS_2] = {LAT_LEN, LON_LEN}; size_t nindex[DIMS_2] = {0, 0}; int scalar_data_in = 0; int i, j; /* Create some data. */ for (i = 0; i < LAT_LEN; i++) for (j = 0; j < LON_LEN; j++) data_out[i][j] = j; /* Create a file with one SDS, containing our phony data. */ sd_id = SDstart(FILE_NAME, DFACC_CREATE); sds_id = SDcreate(sd_id, PRES_NAME, DFNT_INT32, DIMS_2, dim_size); if (SDwritedata(sds_id, start, NULL, edge, (void *)data_out)) ERR; if (SDendaccess(sds_id)) ERR; if (SDend(sd_id)) ERR; /* Now open with netCDF and check the contents. */ if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR; if (nc_inq(ncid, &ndims_in, &nvars_in, &natts_in, &unlimdim_in)) ERR; if (ndims_in != 2 || nvars_in != 1 || natts_in != 0 || unlimdim_in != -1) ERR; if (nc_inq_dim(ncid, 0, NULL, &len_in)) ERR; if (len_in != LAT_LEN) ERR; if (nc_inq_dim(ncid, 1, NULL, &len_in)) ERR; if (len_in != LON_LEN) ERR; /* THese won't work. */ if (nc_redef(ncid) != NC_EPERM) ERR; if (nc_def_var(ncid, "wow", NC_INT, 0, NULL, NULL) != NC_EPERM) ERR; if (nc_def_var_chunking(ncid, 0, NC_CONTIGUOUS, NULL) != NC_EPERM) ERR; /* Expected this to return NC_EPERM, but instead it returns * success. See github issue #744. */ /* if (nc_def_var_chunking_ints(ncid, 0, NC_CONTIGUOUS, NULL) != NC_EPERM) ERR; */ /* Read the data through a vara function from the netCDF API. */ if (nc_get_vara(ncid, 0, nstart, ncount, data_in)) ERR; for (i = 0; i < LAT_LEN; i++) for (j = 0; j < LON_LEN; j++) if (data_in[i][j] != data_out[i][j]) ERR; /* Reset for next test. */ for (i = 0; i < LAT_LEN; i++) for (j = 0; j < LON_LEN; j++) data_in[i][j] = -88; /* Read the data through a vara_int function from the netCDF API. */ if (nc_get_vara_int(ncid, 0, nstart, ncount, (int *)data_in)) ERR; for (i = 0; i < LAT_LEN; i++) for (j = 0; j < LON_LEN; j++) if (data_in[i][j] != data_out[i][j]) ERR; /* Reset for next test. */ for (i = 0; i < LAT_LEN; i++) for (j = 0; j < LON_LEN; j++) data_in[i][j] = -88; /* Read the data through a var_int function from the netCDF API. */ if (nc_get_var_int(ncid, 0, (int *)data_in)) ERR; for (i = 0; i < LAT_LEN; i++) for (j = 0; j < LON_LEN; j++) if (data_in[i][j] != data_out[i][j]) ERR; /* Read the data through a var1 function from the netCDF API. */ for (i = 0; i < LAT_LEN; i++) for (j = 0; j < LON_LEN; j++) { nindex[0] = i; nindex[1] = j; if (nc_get_var1(ncid, 0, nindex, &scalar_data_in)) ERR; if (scalar_data_in != data_out[i][j]) ERR; scalar_data_in = -88; /* reset */ if (nc_get_var1_int(ncid, 0, nindex, &scalar_data_in)) ERR; if (scalar_data_in != data_out[i][j]) ERR; } if (nc_close(ncid)) ERR; } SUMMARIZE_ERR; printf("*** testing with a more complex HDF4 file..."); { #define Z_LEN 3 #define Y_LEN 2 #define X_LEN 5 #define DIMS_3 3 #define NUM_TYPES 8 int32 sd_id, sds_id; int32 dim_size[DIMS_3] = {Z_LEN, Y_LEN, X_LEN}; int dimids_in[DIMS_3]; int ncid, nvars_in, ndims_in, natts_in, unlimdim_in; size_t len_in; nc_type type_in; int hdf4_type[NUM_TYPES] = {DFNT_FLOAT32, DFNT_FLOAT64, DFNT_INT8, DFNT_UINT8, DFNT_INT16, DFNT_UINT16, DFNT_INT32, DFNT_UINT32}; int netcdf_type[NUM_TYPES] = {NC_FLOAT, NC_DOUBLE, NC_BYTE, NC_UBYTE, NC_SHORT, NC_USHORT, NC_INT, NC_UINT}; char tmp_name[NC_MAX_NAME + 1], name_in[NC_MAX_NAME + 1]; char dim_name[NC_MAX_NAME + 1][DIMS_3] = {"z", "y", "x"}; int d, t; /* Create a HDF4 SD file. */ sd_id = SDstart (FILE_NAME, DFACC_CREATE); /* Create some HDF4 datasets. */ for (t = 0; t < NUM_TYPES; t++) { sprintf(tmp_name, "hdf4_dataset_type_%d", t); if ((sds_id = SDcreate(sd_id, tmp_name, hdf4_type[t], DIMS_3, dim_size)) == FAIL) ERR; /* Set up dimensions. By giving them the same names for each * dataset, I am specifying that they are shared * dimensions. */ for (d = 0; d < DIMS_3; d++) { int32 dimid; if ((dimid = SDgetdimid(sds_id, d)) == FAIL) ERR; if (SDsetdimname(dimid, dim_name[d])) ERR; } if (SDendaccess(sds_id)) ERR; } if (SDend(sd_id)) ERR; /* Open the file with netCDF and check it out. */ if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR; if (nc_inq(ncid, &ndims_in, &nvars_in, &natts_in, &unlimdim_in)) ERR; if (ndims_in != DIMS_3 || nvars_in != NUM_TYPES || natts_in != 0 || unlimdim_in != -1) ERR; if (nc_inq_dim(ncid, 0, NULL, &len_in)) ERR; if (len_in != Z_LEN) ERR; if (nc_inq_dim(ncid, 1, NULL, &len_in)) ERR; if (len_in != Y_LEN) ERR; if (nc_inq_dim(ncid, 2, NULL, &len_in)) ERR; if (len_in != X_LEN) ERR; for (t = 0; t < NUM_TYPES; t++) { if (nc_inq_var(ncid, t, name_in, &type_in, &ndims_in, dimids_in, &natts_in)) ERR; if (type_in != netcdf_type[t] || ndims_in != DIMS_3 || dimids_in[0] != 0 || dimids_in[2] != 2 || dimids_in[2] != 2 || natts_in != 0) ERR; } if (nc_close(ncid)) ERR; } SUMMARIZE_ERR; FINAL_RESULTS; }