/*
******** nrrdCommentCopy()
**
** copies comments from one nrrd to another
** Existing comments in nout are blown away
**
** This does NOT use biff.
*/
int
nrrdCommentCopy(Nrrd *nout, const Nrrd *nin) {
/* static const char me[]="nrrdCommentCopy"; */
size_t numc;
int i, E;
if (!(nout && nin)) {
/*
sprintf(err, "%s: got NULL pointer", me);
biffMaybeAdd(NRRD, err, useBiff);
*/
return 1;
}
if (nout == nin) {
/* can't satisfy semantics of copying with nout==nin */
return 2;
}
nrrdCommentClear(nout);
numc = nin->cmtArr->len;
E = 0;
for (i=0; i<numc; i++) {
if (!E) E |= nrrdCommentAdd(nout, nin->cmt[i]);
}
if (E) {
/*
sprintf(err, "%s: couldn't add all comments", me);
biffMaybeAdd(NRRD, err, useBiff);
*/
return 3;
}
return 0;
}
int
_nrrdReadNrrdParse_comment (FILE *file, Nrrd *nrrd,
NrrdIoState *nio, int useBiff) {
char me[]="_nrrdReadNrrdParse_comment", err[BIFF_STRLEN];
char *info;
AIR_UNUSED(file);
info = nio->line + nio->pos;
/* this skips the '#' at nio->line[nio->pos] and any other ' ' and '#' */
if (nrrdCommentAdd(nrrd, info)) {
sprintf(err, "%s: trouble adding comment", me);
biffMaybeAdd(NRRD, err, useBiff); return 1;
}
return 0;
}
int
nrrdHistoDraw(Nrrd *nout, const Nrrd *nin,
size_t sy, int showLog, double max) {
static const char me[]="nrrdHistoDraw", func[]="dhisto";
char cmt[AIR_STRLEN_MED];
unsigned int k, sx, x, y, maxhitidx, E,
numticks, *Y, *logY, tick, *ticks;
double hits, maxhits, usemaxhits;
unsigned char *pgmData;
airArray *mop;
if (!(nin && nout && sy > 0)) {
biffAddf(NRRD, "%s: invalid args", me);
return 1;
}
if (nout == nin) {
biffAddf(NRRD, "%s: nout==nin disallowed", me);
return 1;
}
if (nrrdHistoCheck(nin)) {
biffAddf(NRRD, "%s: input nrrd not a histogram", me);
return 1;
}
sx = AIR_CAST(unsigned int, nin->axis[0].size);
nrrdBasicInfoInit(nout, NRRD_BASIC_INFO_DATA_BIT);
if (nrrdPGM(nout, sx, sy)) {
biffAddf(NRRD, "%s: failed to allocate histogram image", me);
return 1;
}
/* perhaps I should be using nrrdAxisInfoCopy */
nout->axis[0].spacing = nout->axis[1].spacing = AIR_NAN;
nout->axis[0].thickness = nout->axis[1].thickness = AIR_NAN;
nout->axis[0].min = nin->axis[0].min;
nout->axis[0].max = nin->axis[0].max;
nout->axis[0].center = nout->axis[1].center = nrrdCenterCell;
nout->axis[0].label = (char *)airStrdup(nin->axis[0].label);
nout->axis[1].label = (char *)airFree(nout->axis[1].label);
pgmData = (unsigned char *)nout->data;
maxhits = maxhitidx = 0;
for (x=0; x<sx; x++) {
hits = nrrdDLookup[nin->type](nin->data, x);
if (maxhits < hits) {
maxhits = hits;
maxhitidx = x;
}
}
if (AIR_EXISTS(max) && max > 0) {
usemaxhits = max;
} else {
usemaxhits = maxhits;
}
nout->axis[1].min = usemaxhits;
nout->axis[1].max = 0;
numticks = (unsigned int)log10(usemaxhits + 1);
mop = airMopNew();
ticks = (unsigned int*)calloc(numticks, sizeof(unsigned int));
airMopMem(mop, &ticks, airMopAlways);
Y = (unsigned int*)calloc(sx, sizeof(unsigned int));
airMopMem(mop, &Y, airMopAlways);
logY = (unsigned int*)calloc(sx, sizeof(unsigned int));
airMopMem(mop, &logY, airMopAlways);
if (!(ticks && Y && logY)) {
biffAddf(NRRD, "%s: failed to allocate temp arrays", me);
airMopError(mop); return 1;
}
for (k=0; k<numticks; k++) {
ticks[k] = airIndex(0, log10(pow(10,k+1) + 1), log10(usemaxhits+1), AIR_CAST(unsigned int, sy));
}
for (x=0; x<sx; x++) {
hits = nrrdDLookup[nin->type](nin->data, x);
Y[x] = airIndex(0, hits, usemaxhits, AIR_CAST(unsigned int, sy));
logY[x] = airIndex(0, log10(hits+1), log10(usemaxhits+1), AIR_CAST(unsigned int, sy));
/* printf("%d -> %d,%d", x, Y[x], logY[x]); */
}
for (y=0; y<sy; y++) {
tick = 0;
for (k=0; k<numticks; k++)
tick |= ticks[k] == y;
for (x=0; x<sx; x++) {
pgmData[x + sx*(sy-1-y)] =
(2 == showLog /* HACK: draw log curve, but not log tick marks */
? (y >= logY[x]
? 0 /* above log curve */
: (y >= Y[x]
? 128 /* below log curve, above normal curve */
: 255 /* below log curve, below normal curve */
)
)
: (!showLog
? (y >= Y[x] ? 0 : 255)
: (y >= logY[x] /* above log curve */
? (!tick ? 0 /* not on tick mark */
: 255) /* on tick mark */
: (y >= Y[x] /* below log curve, above normal curve */
? (!tick ? 128 /* not on tick mark */
: 0) /* on tick mark */
:255 /* below log curve, below normal curve */
)
)
)
);
}
}
E = AIR_FALSE;
sprintf(cmt, "min value: %g\n", nout->axis[0].min);
if (!E) E |= nrrdCommentAdd(nout, cmt);
sprintf(cmt, "max value: %g\n", nout->axis[0].max);
if (!E) E |= nrrdCommentAdd(nout, cmt);
sprintf(cmt, "max hits: %g, in bin %d, around value %g\n",
maxhits, maxhitidx, nrrdAxisInfoPos(nout, 0, maxhitidx));
if (!E) E |= nrrdCommentAdd(nout, cmt);
if (!E) E |= nrrdContentSet_va(nout, func, nin, "%d", sy);
if (E) {
biffAddf(NRRD, "%s:", me);
airMopError(mop); return 1;
}
/* bye */
airMopOkay(mop);
return 0;
}
