mirror of https://github.com/ecmwf/eccodes.git
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*
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* (C) Copyright 2005- ECMWF.
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*
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* This software is licensed under the terms of the Apache Licence Version 2.0
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* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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*
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* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "eccodes.h"
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/* See JIRA issue GRIB-361 */
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int main()
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{
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const int ni = 2880;
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const int nj = 2880;
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size_t numbytes = 0;
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double* values;
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int i = 0;
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codes_handle* h = NULL;
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const char* filename = "bigfile.grib";
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numbytes = ni * nj * sizeof(double);
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values = (double*)malloc(numbytes);
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if (!values) {
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printf("Malloc failed - requested %lu bytes\n", (unsigned long)numbytes);
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return 1;
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}
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for (i = 0; i < ni * nj; i++) {
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double r = rand() * 1.0 / RAND_MAX;
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values[i] = r;
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}
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h = codes_grib_handle_new_from_samples(0, "GRIB1");
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CODES_CHECK(codes_set_long(h, "Ni", ni), 0);
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CODES_CHECK(codes_set_long(h, "Nj", nj), 0);
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CODES_CHECK(codes_set_long(h, "centre", 86), 0);
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CODES_CHECK(codes_set_long(h, "process", 100), 0);
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CODES_CHECK(codes_set_long(h, "indicatorOfTypeOfLevel", 105), 0);
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CODES_CHECK(codes_set_long(h, "level", 2), 0);
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CODES_CHECK(codes_set_long(h, "indicatorOfParameter", 1), 0);
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CODES_CHECK(codes_set_long(h, "table2Version", 1), 0);
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CODES_CHECK(codes_set_long(h, "dataDate", 20130424), 0);
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CODES_CHECK(codes_set_long(h, "dataTime", 0), 0);
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CODES_CHECK(codes_set_long(h, "startStep", 0), 0);
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CODES_CHECK(codes_set_long(h, "endStep", 0), 0);
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CODES_CHECK(codes_set_long(h, "bitmapPresent", 1), 0);
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CODES_CHECK(codes_set_double(h, "iDirectionIncrementInDegrees", 0.125), 0);
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CODES_CHECK(codes_set_double(h, "jDirectionIncrementInDegrees", 0.125), 0);
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CODES_CHECK(codes_set_long(h, "iScansNegatively", 0), 0);
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CODES_CHECK(codes_set_long(h, "jScansPositively", 1), 0);
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CODES_CHECK(codes_set_double(h, "latitudeOfFirstGridPointInDegrees", -90), 0);
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CODES_CHECK(codes_set_double(h, "latitudeOfLastGridPointInDegrees", 90), 0);
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CODES_CHECK(codes_set_double(h, "longitudeOfFirstGridPointInDegrees", -180), 0);
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CODES_CHECK(codes_set_double(h, "longitudeOfLastGridPointInDegrees", 180), 0);
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CODES_CHECK(codes_set_double_array(h, "values", values, ni * nj), 0);
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codes_write_message(h, filename, "w");
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/*printf("Wrote file %s\n", filename);*/
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codes_handle_delete(h);
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free(values);
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return 0;
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}
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