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/*
* (C) Copyright 2005- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
*
* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
*/
#include "grib_tools.h"
grib_option grib_options[] = {
/* {id, args, help}, on, command_line, value*/
{ "f", 0, 0, 0, 1, 0 },
{ "p:", 0, 0, 0, 1, 0 },
{ "F:", 0, 0, 1, 1, "%g" },
{ "B:", 0, 0, 0, 1, 0 },
{ "l:", 0, 0, 0, 1, 0 },
{ "P:", 0, 0, 0, 1, 0 },
{ "w:", 0, 0, 0, 1, 0 },
{ "n:", 0, 0, 1, 1, 0 },
{ "s:", 0, 0, 0, 1, 0 },
{ "V", 0, 0, 0, 1, 0 },
{ "W:", 0, 0, 1, 1, "8" },
{ "m", 0, 0, 0, 1, 0 },
{ "M", 0, 0, 0, 1, 0 },
{ "S", 0, 0, 1, 0, 0 },
{ "g", 0, 0, 0, 1, 0 },
{ "G", 0, 0, 0, 1, 0 },
{ "T:", 0, 0, 0, 1, 0 },
{ "7", 0, 0, 0, 1, 0 },
{ "v", 0, 0, 1, 0, 0 },
{ "X:", 0, 0, 0, 1, 0 },
{ "i:", 0, 0, 0, 1, 0 },
{ "h", 0, 0, 0, 1, 0 },
};
const char* tool_description =
"Get values of some keys from a GRIB file."
"\n\tIt is similar to grib_ls, but fails returning an error code "
"\n\twhen an error occurs (e.g. key not found).";
const char* tool_name = "grib_get";
const char* tool_online_doc = "https://confluence.ecmwf.int/display/ECC/grib_get";
const char* tool_usage = "[options] grib_file grib_file ...";
int grib_options_count = sizeof(grib_options) / sizeof(grib_option);
static double lat = 0;
static double lon = 0;
static int mode = 0;
static grib_nearest* nearest = NULL;
int main(int argc, char* argv[])
{
return grib_tool(argc, argv);
}
int grib_tool_before_getopt(grib_runtime_options* options)
{
options->print_keys_count = -1;
return 0;
}
int grib_tool_init(grib_runtime_options* options)
{
char *theEnd = NULL, *end1 = NULL;
size_t size = 4;
int ret = 0;
double min = 0, max = 0;
int i = 0;
char* p = NULL;
options->print_header = 0;
options->print_statistics = 0;
options->default_print_width = -1;
if (options->latlon) {
lat = strtod(options->latlon, &theEnd);
if (*theEnd != ',') {
fprintf(stderr, "%s: Wrong latitude value. Please use 'latitude,longitude'\n", tool_name);
exit(1);
}
lon = strtod(++theEnd, &end1);
mode = GRIB_NEAREST_SAME_POINT | GRIB_NEAREST_SAME_GRID;
if (end1 && *end1 == ',') {
end1++;
if (*end1 != '0') {
p = end1;
while (*p != ',' && *p != '\0')
p++;
if (*end1 == '4') {
options->latlon_mode = 4;
}
else if (*end1 == '1') {
options->latlon_mode = 1;
}
else {
fprintf(stderr, "%s: Wrong mode given for the '-l' option (Please use 1 or 4)\n", tool_name);
exit(1);
}
}
if (p && *p == ',') {
p++;
options->latlon_mask = strdup(p);
}
}
}
if (options->latlon && options->latlon_mask) {
grib_handle* hh;
FILE* f = fopen(options->latlon_mask, "r");
if (!f) {
fprintf(stderr, "%s: unable to open mask file %s\n", tool_name, options->latlon_mask);
perror(options->latlon_mask);
exit(1);
}
hh = grib_handle_new_from_file(0, f, &ret);
fclose(f);
GRIB_CHECK_NOLINE(ret, 0);
nearest = grib_nearest_new(hh, &ret);
GRIB_CHECK_NOLINE(ret, 0);
GRIB_CHECK_NOLINE(grib_nearest_find(nearest, hh, lat, lon, mode,
options->lats, options->lons, options->mask_values, options->distances, options->indexes, &size),
0);
grib_nearest_delete(nearest);
nearest = NULL;
grib_handle_delete(hh);
options->latlon_idx = -1;
max = options->distances[0];
for (i = 0; i < 4; i++)
if (max < options->distances[i]) {
max = options->distances[i];
}
min = max;
for (i = 0; i < 4; i++) {
if ((min >= options->distances[i]) && (options->mask_values[i] >= 0.5)) {
options->latlon_idx = i;
min = options->distances[i];
}
}
if (options->latlon_idx < 0) {
min = 0;
options->latlon_idx = 0;
for (i = 1; i < 4; i++) {
if (min > options->distances[i]) {
min = options->distances[i];
options->latlon_idx = i;
}
}
}
}
return 0;
}
int grib_tool_new_filename_action(grib_runtime_options* options, const char* file)
{
return 0;
}
int grib_tool_new_file_action(grib_runtime_options* options, grib_tools_file* file)
{
exit_if_input_is_directory(tool_name, file->name);
if (nearest)
grib_nearest_delete(nearest);
nearest = NULL;
return 0;
}
int grib_tool_new_handle_action(grib_runtime_options* options, grib_handle* h)
{
size_t size = 4;
int err = 0;
if (!options->skip) {
if (options->set_values_count != 0) {
err = grib_set_values(h, options->set_values, options->set_values_count);
}
if (err != GRIB_SUCCESS && options->fail)
exit(err);
}
if (options->latlon) {
int i;
double min;
err = 0;
if (!nearest)
nearest = grib_nearest_new(h, &err);
GRIB_CHECK_NOLINE(err, 0);
GRIB_CHECK_NOLINE(grib_nearest_find(nearest, h, lat, lon, 0,
options->lats, options->lons, options->values,
options->distances, options->indexes, &size),
0);
min = options->distances[0];
options->latlon_idx = 0;
for (i = 1; i < 4; i++) {
if (min > options->distances[i]) {
min = options->distances[i];
options->latlon_idx = i;
}
}
}
if (options->current_infile && options->current_infile->name) {
size = strlen(options->current_infile->name);
grib_set_string(h, "file", options->current_infile->name, &size);
}
return 0;
}
int grib_tool_skip_handle(grib_runtime_options* options, grib_handle* h)
{
grib_handle_delete(h);
return 0;
}
int grib_tool_finalise_action(grib_runtime_options* options)
{
if (nearest)
grib_nearest_delete(nearest);
nearest = NULL;
return 0;
}
int grib_no_handle_action(grib_runtime_options* options, int err)
{
fprintf(dump_file, "\t\t\"ERROR: unreadable message\"\n");
return 0;
}
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