Doxygen Source Code Documentation
1dsum.c File Reference
#include "mrilib.h"Go to the source code of this file.
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| #define | MAXIM 1024 |
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| int | main (int argc, char *argv[]) |
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convert three sub-briks to a raw dataset with consecutive triplets Definition at line 7 of file 1dsum.c. References argc, far, machdep(), malloc, MRI_FLOAT_PTR, mri_read_1D(), ncol, MRI_IMAGE::nx, MRI_IMAGE::ny, and strtod().
00008 {
00009 int nim , ii , jj , kk , nx ;
00010 MRI_IMAGE ** inim ;
00011 float * far ;
00012 int ncol , ic ;
00013 float * csum ;
00014 int nn_ignore=0 , mm_use=0 , iarg=1 ;
00015
00016 /*-- help? --*/
00017
00018 if( argc < 2 || strcmp(argv[1],"-help") == 0 ){
00019 printf("Usage: 1dsum [options] a.1D b.1D ...\n"
00020 "where each file a.1D, b.1D, etc. is an ASCII file of numbers arranged\n"
00021 "in rows and columns. The sum of each column is written to stdout.\n"
00022 "\n"
00023 "Options:\n"
00024 " -ignore nn = skip the first nn rows of each file\n"
00025 " -use mm = use only mm rows from each file\n"
00026 ) ;
00027 exit(0) ;
00028 }
00029
00030 machdep() ;
00031
00032 /* parse options */
00033
00034 while( iarg < argc && argv[iarg][0] == '-' ){
00035
00036 if( strncmp(argv[iarg],"-ignore",4) == 0 ){
00037 nn_ignore = (int) strtod(argv[++iarg],NULL) ;
00038 if( nn_ignore < 0 ){fprintf(stderr,"** Illegal -ignore value!\n");exit(1);}
00039 iarg++ ; continue ;
00040 }
00041
00042 if( strncmp(argv[iarg],"-use",4) == 0 ){
00043 mm_use = (int) strtod(argv[++iarg],NULL) ;
00044 if( mm_use < 0 ){fprintf(stderr,"** Illegal -use value!\n");exit(1);}
00045 iarg++ ; continue ;
00046 }
00047
00048 fprintf(stderr,"** Unknown option: %s\n",argv[iarg]) ; exit(1) ;
00049 }
00050
00051 /* read input files */
00052
00053 nim = argc-iarg ;
00054 inim = (MRI_IMAGE **) malloc( sizeof(MRI_IMAGE *) * nim ) ;
00055 ncol = 0 ;
00056 for( jj=0 ; jj < nim ; jj++ ){
00057 inim[jj] = mri_read_1D( argv[jj+iarg] ) ;
00058 if( inim[jj] == NULL ){
00059 fprintf(stderr,"** Can't read input file %s\n",argv[jj+iarg]) ;
00060 exit(1) ;
00061 }
00062 if( jj > 0 && inim[jj]->nx != inim[0]->nx ){
00063 fprintf(stderr,
00064 "** Input file %s doesn't match first file %s in length!\n",
00065 argv[jj+iarg],argv[iarg]) ;
00066 exit(1) ;
00067 }
00068 ncol += inim[jj]->ny ;
00069 }
00070
00071 if( mm_use == 0 ){
00072 mm_use = inim[0]->nx - nn_ignore ;
00073 if( mm_use < 0 ){fprintf(stderr,"** -ignore is too big for these files!\n");exit(1);}
00074 }
00075 if( nn_ignore + mm_use > inim[0]->nx ){
00076 fprintf(stderr,"** -ignore + -use is too big for these files!\n");exit(1);
00077 }
00078
00079 csum = (float *) malloc(sizeof(float)*ncol) ;
00080 for( ic=0 ; ic < ncol ; ic++ ) csum[ic] = 0.0 ;
00081
00082 nx = inim[0]->nx ;
00083 for( ii=nn_ignore ; ii < nn_ignore+mm_use ; ii++ ){
00084 for( ic=jj=0 ; jj < nim ; jj++ ){
00085 far = MRI_FLOAT_PTR(inim[jj]) ;
00086 for( kk=0 ; kk < inim[jj]->ny ; kk++ ) csum[ic++] += far[ii+kk*nx] ;
00087 }
00088 }
00089
00090 for( ic=0 ; ic < ncol ; ic++ ) printf("%g ",csum[ic]) ;
00091 printf("\n");
00092 exit(0) ;
00093 }
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