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/*
NrrdIO: stand-alone code for basic nrrd functionality
Copyright (C) 2008, 2007, 2006, 2005 Gordon Kindlmann
Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998 University of Utah
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "NrrdIO.h"
void
demoIO(char *filename) {
char me[]="demoIO", newname[]="foo.nrrd", *err, *key, *val;
int kvn, kvi;
Nrrd *nin;
/* create a nrrd; at this point this is just an empty container */
nin = nrrdNew();
/* read in the nrrd from file */
if (nrrdLoad(nin, filename, NULL)) {
err = biffGetDone(NRRD);
fprintf(stderr, "%s: trouble reading \"%s\":\n%s", me, filename, err);
free(err);
return;
}
/* say something about the array */
printf("%s: \"%s\" is a %d-dimensional nrrd of type %d (%s)\n",
me, filename, nin->dim, nin->type,
airEnumStr(nrrdType, nin->type));
printf("%s: the array contains %d elements, each %d bytes in size\n",
me, (int)nrrdElementNumber(nin), (int)nrrdElementSize(nin));
/* print out the key/value pairs present */
kvn = nrrdKeyValueSize(nin);
if (kvn) {
for (kvi=0; kvi<kvn; kvi++) {
nrrdKeyValueIndex(nin, &key, &val, kvi);
printf("%s: key:value %d = %s:%s\n", me, kvi, key, val);
free(key); free(val);
key = val = NULL;
}
}
/* modify key/value pairs, and write out the nrrd to a different file */
nrrdKeyValueClear(nin);
nrrdKeyValueAdd(nin, "new key", "precious value");
if (nrrdSave(newname, nin, NULL)) {
err = biffGetDone(NRRD);
fprintf(stderr, "%s: trouble writing \"%s\":\n%s", me, newname, err);
free(err);
return;
}
/* blow away both the Nrrd struct *and* the memory at nin->data
(nrrdNix() frees the struct but not the data,
nrrdEmpty() frees the data but not the struct) */
nrrdNuke(nin);
return;
}
int
main(int argc, char **argv) {
char *err;
fprintf(stderr, "(from Teem %s, %s)\n",
airTeemVersion, airTeemReleaseDate);
if (!nrrdSanity()) {
fprintf(stderr, "\n");
fprintf(stderr, "!!! nrrd sanity check FAILED: fix and re-compile\n");
err = biffGet(NRRD);
fprintf(stderr, "%s\n", err);
free(err);
return 1;
} else {
fprintf(stderr, "(nrrdSanity check passed)\n\n");
}
if (2 != argc) {
fprintf(stderr, "usage: demoIO <filename>\n");
return 1;
}
demoIO(argv[1]);
return 0;
}
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