diff options
Diffstat (limited to 'funtools/faq/tim.c')
-rw-r--r-- | funtools/faq/tim.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/funtools/faq/tim.c b/funtools/faq/tim.c new file mode 100644 index 0000000..5b0aa98 --- /dev/null +++ b/funtools/faq/tim.c @@ -0,0 +1,55 @@ +#include <funtools.h> + +int main(int argc, char **argv) +{ + int i, j, bitpix, dim1, dim2; + double *buf; + unsigned char *cbuf; + short *sbuf; + int *ibuf; + float *fbuf; + double *dbuf; + Fun fun; + + /* sanity check */ + if( argc < 2 ) return 1; + /* open file for reading */ + if( !(fun=FunOpen(argv[1], "r", NULL)) ){ + fprintf(stderr, "ERROR: can't open funtools file: %s\n", argv[1]); + return 1; + } + /* extract (and bin, if necessary) data into a double prec. image buffer */ + /* data type is not specified and therefore is that of the file */ + if( !(buf = FunImageGet(fun, NULL, NULL)) ){ + fprintf(stderr, "ERROR: can't get image: %s\n", argv[1]); + return 1; + } + /* get image dimensions after FunImageGet, in case an image section + was specified on the command line, which changes image dimensions */ + FunInfoGet(fun, FUN_SECT_BITPIX, &bitpix, + FUN_SECT_DIM1, &dim1, FUN_SECT_DIM2, &dim2, 0); + /* set appropriate data type buffer to point to image buffer */ + switch(bitpix){ + case 8: cbuf = (unsigned char *)buf; break; + case 16: sbuf = (short *)buf; break; + case 32: ibuf = (int *)buf; break; + case -32: fbuf = (float *)buf; break; + case -64: dbuf = (double *)buf; break; + } + /* loop through image */ + for(i=0; i<dim2; i++){ + for(j=0; j<dim1; j++){ + switch(bitpix){ + case 8: fprintf(stdout, "%4d ", cbuf[i*dim1+j]); break; + case 16: fprintf(stdout, "%6d ", sbuf[i*dim1+j]); break; + case 32: fprintf(stdout, "%9d ", ibuf[i*dim1+j]); break; + case -32: fprintf(stdout, "%.2f ", fbuf[i*dim1+j]); break; + case -64: fprintf(stdout, "%.6f ", dbuf[i*dim1+j]); break; + } + } + fprintf(stdout, "\n"); + } + /* close file */ + FunClose(fun); + return 0; +} |