sif.c File Reference

Routines for Scan Information Files (SIF). More...

#include "libtpcimgio.h"

Go to the source code of this file.

Functions
void	sifInit (SIF *data)
void	sifEmpty (SIF *data)
int	sifSetmem (SIF *data, int frameNr)

Variables
int	SIF_TEST
char	siferrmsg [128]

Detailed Description

Routines for Scan Information Files (SIF).

Author

Vesa Oikonen

Definition in file sif.c.

Function Documentation

sifEmpty()

void sifEmpty

(

SIF *

data

)

Free memory allocated for SIF. All contents are destroyed.

See also

sifInit, sifSetmem

Parameters

data	Pointer to sif data struct.

Definition at line 33 of file sif.c.

  {
  if(SIF_TEST) printf("sifEmpty()\n");
  if(data==NULL) return;
  if(data->frameNr>0) {
    free((char*)(data->x1)); free((char*)(data->x2));
    free((char*)(data->prompts)); free((char*)(data->randoms));
    free((char*)(data->trues)); free((char*)(data->weights));
    data->frameNr=data->colNr=0;
  }
  data->scantime=(time_t)0; data->version=0;
  strcpy(data->studynr, ""); strcpy(data->isotope_name, "");
}

Referenced by imgReadAnalyze(), imgReadAnalyzeFrame(), imgReadAnalyzeHeader(), imgReadModelingData(), imgReadNiftiFrame(), imgReadNiftiHeader(), imgSetWeights(), imgWriteNifti(), sifAllocateWithIMG(), sifRead(), and sifSetmem().

sifInit()

void sifInit

(

SIF *

data

)

Initiate SIF structure. This should be called once before first use.

See also

sifEmpty, sifRead, sifSetmem

Parameters

data	Pointer to sif data struct.

Definition at line 17 of file sif.c.

  {
  if(SIF_TEST) printf("sifInit()\n");
  if(data==NULL) return;
  memset(data, 0, sizeof(SIF));
  data->frameNr=data->colNr=0;
}

Referenced by imgReadAnalyze(), imgReadAnalyzeFrame(), imgReadAnalyzeHeader(), imgReadModelingData(), imgReadNiftiFrame(), imgReadNiftiHeader(), imgSetWeights(), imgWriteAnalyze(), and imgWriteNifti().

sifSetmem()

int sifSetmem	(	SIF *	data,
		int	frameNr )

Allocates memory for SIF data.

See also

sifInit, sifEmpty

Returns

0 if ok, 1 failed memory allocation

Parameters

data	Pointer to initiated sif data struct. Any existing data is destroyed.
frameNr	Number of PET time frames.

Definition at line 56 of file sif.c.

  {
  if(SIF_TEST) printf("sifSetmem()\n");
  if(data==NULL) return(1);
  /* Clear previous data, if necessary */
  if(data->frameNr>0) sifEmpty(data);
  if(frameNr<1) return(0);
  
  /* Allocate memory */
  data->x1=(double*)calloc(frameNr, sizeof(double));
  data->x2=(double*)calloc(frameNr, sizeof(double));
  data->prompts=(double*)calloc(frameNr, sizeof(double));
  data->randoms=(double*)calloc(frameNr, sizeof(double));
  data->trues=(double*)calloc(frameNr, sizeof(double));
  data->weights=(double*)calloc(frameNr, sizeof(double));
  if(data->x1==NULL || data->x2==NULL || data->prompts==NULL ||
     data->randoms==NULL || data->trues==NULL || data->weights==NULL) {
    strcpy(siferrmsg, "out of memory"); return(1);}
  data->frameNr=frameNr;
 
  return(0);
}

Referenced by img2sif(), imgGetMicropetSIF(), sifAllocateWithIMG(), and sifRead().

Variable Documentation

SIF_TEST

int SIF_TEST

Verbose prints from SIF functions

Definition at line 6 of file sif.c.

Referenced by sifEmpty(), sifInit(), sifModerateTrues(), sifModerateWeights(), sifRead(), sifSetmem(), sifWeight(), sifWeightByFrames(), sifWeightNorm(), and sifWrite().

siferrmsg

char siferrmsg[128]

Error message from SIF functions

Definition at line 7 of file sif.c.

Referenced by imgReadModelingData(), sifRead(), sifSetmem(), and sifWrite().