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/*******************************************************************
*
* fsl_api_driver.c
*
* Test fslio API
*
* Usage: fsl_api_driver <command> <dataset(s)> [params]
*
*
* print <dataset>
* print dataset header fields
* peek <dataset> X Y Z T
* print value at voxel location X Y Z T (0-based index)
* timecourse <dataset> X Y Z
* print timecourse at voxel location X Y Z (0-based index)
*
* Kate Fissell, University of Pittsburgh
* 12/04
*******************************************************************/
#include <stdio.h>
#include <strings.h>
#include <nifti1.h>
#include <fslio.h>
void pusage(char *cmd);
int main(int argc, char * argv[])
{
FSLIO *fslio;
void *buffer;
char *f1name;
double ***vol;
int x,y,z,t;
/*** process commandline parameters */
if (argc < 2) {
pusage(argv[0]);
exit(1);
}
/************************* PRINT ***************************/
if (!strncmp(argv[1],"print",5)) {
if (argc != 3) {
fprintf(stderr, "\nError, print command takes one parameter: print <dataset>\n");
exit(1);
}
f1name = argv[2];
/** open nifti dataset */
fslio = FslInit();
buffer = FslReadAllVolumes(fslio,f1name);
if (buffer == NULL) {
fprintf(stderr, "\nError opening and reading %s.\n",f1name);
exit(1);
}
nifti_image_infodump(fslio->niftiptr);
exit(0);
}
/************************* PEEK ***************************/
if (!strncmp(argv[1],"peek",4)) {
if (argc != 7) {
fprintf(stderr, "\nError, peek command takes five parameters: peek <dataset> X Y Z T\n");
exit(1);
}
/**** get inputs */
f1name = argv[2];
x = atoi(argv[3]);
y = atoi(argv[4]);
z = atoi(argv[5]);
t = atoi(argv[6]);
/** open nifti dataset header */
fslio = FslReadHeader(f1name);
if (fslio == NULL) {
fprintf(stderr, "\nError, could not read header info for %s.\n",f1name);
exit(1);
}
/**** check inputs */
if ( (x<0) || (x>=fslio->niftiptr->nx) ) {
fprintf(stderr, "\nError: x index (%d) out of range [0..%d]\n",x,fslio->niftiptr->nx-1);
exit(1);
}
if ( (y<0) || (y>=fslio->niftiptr->ny) ) {
fprintf(stderr, "\nError: y index (%d) out of range [0..%d]\n",y,fslio->niftiptr->ny-1);
exit(1);
}
if ( (z<0) || (z>=fslio->niftiptr->nz) ) {
fprintf(stderr, "\nError: z index (%d) out of range [0..%d]\n",z,fslio->niftiptr->nz-1);
exit(1);
}
if ( (t<0) || (t>=fslio->niftiptr->nt) ) {
fprintf(stderr, "\nError: t index (%d) out of range [0..%d]\n",t,fslio->niftiptr->nt-1);
exit(1);
}
/*** get volume data as scaled doubles */
vol = FslGetVolumeAsScaledDouble(fslio,t);
if (vol == NULL) {
fprintf(stderr, "\nError accessing %s\n",f1name);
exit(1);
}
else {
fprintf(stderr, "\nLocation %d %d %d %d: %.4f\n",x,y,z,t,vol[z][y][x]);
exit(0);
}
}
fprintf(stderr, "\nError, unrecognized command %s\n",argv[1]);
pusage(argv[0]);
exit(1);
}
void pusage(char *cmd) {
fprintf(stderr, "\n%s is a small driver program to test out the fslio API.\n",cmd);
fprintf(stderr, "\nUsage: %s <command> <dataset(s)> <parameters>",cmd);
fprintf(stderr, "\n\n\tCommands:");
fprintf(stderr, "\n\tprint <dataset>\t\t\tprint dataset header");
fprintf(stderr, "\n\tpeek <dataset> X Y Z T\t\tprint dataset value at location (0-based) (x,y,z,t).");
fprintf(stderr, "\n");
return;
}
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