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fits.c
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fits.c
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/*
* fits.c
* Messier
*
* Created by abraham on Sun Dec 16 2001.
* Copyright (c) 2001 __MyCompanyName__. All rights reserved.
*
*/
#include <string.h>
#include <stdlib.h>
#include "fitsio.h"
int checkForSimpleSpectrum(char *filename)
{
fitsfile *fptr; /* pointer to the FITS file, defined in fitsio.h */
long naxes[2];
int nfound, status;
char filestring[FLEN_FILENAME];
strncpy(filestring,filename,FLEN_FILENAME);
status = 0;
naxes[0] = 0;
naxes[1] = 0;
if(fits_open_file(&fptr, filestring, READONLY, &status)){
fits_close_file(fptr, &status);
return(1);
}
if(fits_read_keys_lng(fptr, "NAXIS", 1, 2, naxes, &nfound, &status)){
fits_close_file(fptr, &status);
return(1);
}
if(fits_close_file(fptr, &status)){
return(1);
}
if (naxes[0] <= 0 || naxes[1] != 0){
return(1);
}
return(0);
};
float *readfloat(char *filename, int *nx, int *ny, int *error_status)
{
float *arr;
fitsfile *fptr; /* pointer to the FITS file, defined in fitsio.h */
long naxes[2], npixels, firstelem;
int nfound, anynull, status;
double nullval;
char filestring[FLEN_FILENAME];
strncpy(filestring,filename,FLEN_FILENAME);
status = 0;
*nx = 0;
*ny = 0;
if(fits_open_file(&fptr, filestring, READONLY, &status)){
fits_close_file(fptr, &status);
*error_status = status;
return (arr);
}
if(fits_read_keys_lng(fptr, "NAXIS", 1, 2, naxes, &nfound, &status)){
fits_close_file(fptr, &status);
*error_status = status;
return(arr);
}
firstelem = 1;
npixels = naxes[0] * naxes[1]; /* number of pixels in the image */
nullval = 0; /* don't check for null values in the image */
arr = (float *) malloc(sizeof(float)*npixels);
if(fits_read_img(fptr,TFLOAT,firstelem,npixels,&nullval,arr,&anynull,&status)){
fits_close_file(fptr, &status);
*error_status = status;
return(arr);
}
if(fits_close_file(fptr, &status)){
*error_status = status;
return(arr);
}
*nx = naxes[0];
*ny = naxes[1];
*error_status = status;
return(arr);
};
char *readheader(char *filename, int *error_status)
{
fitsfile *fptr; /* pointer to the FITS file, defined in fitsio.h */
int status;
int nkey,nblank;
char filestring[FLEN_FILENAME];
char *header;
char card[80];
int i,j;
int index;
strncpy(filestring,filename,FLEN_FILENAME);
status = 0;
if(fits_open_file(&fptr, filestring, READONLY, &status)){
fits_close_file(fptr, &status);
*error_status = status;
return (header);
}
if(fits_get_hdrspace(fptr, &nkey, &nblank, &status)){
fits_close_file(fptr, &status);
*error_status = status;
return(header);
}
header = malloc(nkey*81+1); /* A FITS line is 80 characters by definition. Add 1 for newlines
and the final '\0' on the last line. */
index = 0;
for(i=0;i<nkey;i++){
if(fits_read_record(fptr, i+1, card, &status)){
fits_close_file(fptr, &status);
*error_status = status;
return (header);
}
for(j=0;j<80;j++){
if (card[j]!='\0'){
header[index++] = card[j];
}
else{
header[index++] = ' ';
}
}
header[index++] = '\n';
}
header[81*nkey-1] = '\0';
if(fits_close_file(fptr, &status)){
*error_status = status;
return(header);
}
*error_status = status;
return(header);
};
void writefloat(char *filename, float *arr, long nx, long ny, int *error_status)
{
fitsfile *fptr; /* pointer to the FITS file, defined in fitsio.h */
long naxes[2], firstelem, npixels;
int status;
char filestring[FLEN_FILENAME];
strncpy(filestring,filename,FLEN_FILENAME);
status = 0;
if(fits_create_file(&fptr, filestring, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
naxes[0] = nx;
naxes[1] = ny;
if(fits_create_img(fptr, -32, 2, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = nx*ny;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,arr,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_close_file(fptr, &status)){
*error_status = status;
}
*error_status = status;
return;
};
void savespectrum2(char *filename, float *lambda, float *arr, float *optarr,
float *skyarr, float *electrons, long nx, int *error_status)
{
fitsfile *fptr; /* pointer to the FITS file, defined in fitsio.h */
long naxes[2], firstelem, npixels;
int status;
char tempstring[FLEN_FILENAME];
char filestring[FLEN_FILENAME] = "!";
int itemp;
float ftemp;
char *cchunk;
char *clines;
char keyword[10];
int count;
int i;
//Create an enormous line with the wavelength calibration information
cchunk = malloc(1000);
clines = malloc(1000000);
sprintf(clines,"wtype=multispec spec1 = \"1 1 2 1. %10.2f %d 0. INDEF INDEF 1. 0. 5 %d",(lambda[nx-1]-lambda[0])/count,(int)nx,(int)nx+1);
//Write data to a file
for(i=0;i<nx;i++){
sprintf(cchunk," %10.2f",*(lambda+i));
strcat(clines,cchunk);
}
strcat(clines,"\"");
printf("clines is %d characters long\n",strlen(clines));
//Create the FITS file, over-writing an existing one of the same name if it exists
strncpy(tempstring,filename,FLEN_FILENAME);
strncat(filestring,tempstring,FLEN_FILENAME);
status = 0;
if(fits_create_file(&fptr, filestring, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
//Write an empty PHU with information common to all the other headers
naxes[0] = 0;
if(fits_create_img(fptr, -32, 0, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
// LINEAR OBJECT SPECTRUM
naxes[0] = nx;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","LINEAR","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 2;
if(fits_write_key(fptr,TLONG,"WCSDIM",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE2","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = 1.0;
if(fits_write_key(fptr,TFLOAT,"CDELT1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CDELT2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD2_2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"LTM1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"LTM2_2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAXMAP01","1 0 0 0 ","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT0_001","system=multispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT1_001","wtype=multispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
//Now write the incredibly long WAT2 keyword
count = 1;
for(i=0;i<strlen(clines);i+=68){
if(count>=0 && count<10)
sprintf(keyword,"WAT2_00%d",count);
if(count>=10 && count<100)
sprintf(keyword,"WAT2_0%d",count);
if(count>=100 && count<1000)
sprintf(keyword,"WAT2_%d",count);
fits_write_key(fptr,TSTRING,keyword,clines+i,"",&status);
count++;
}
//Now write the data
firstelem = 1;
npixels = nx;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,arr,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
// ELECTRONS SPECTRUM
naxes[0] = nx;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","ELECTRON","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 2;
if(fits_write_key(fptr,TLONG,"WCSDIM",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE2","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = 1.0;
if(fits_write_key(fptr,TFLOAT,"CDELT1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CDELT2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD2_2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"LTM1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"LTM2_2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAXMAP01","1 0 0 0 ","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT0_001","system=multispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT1_001","wtype=multispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
//Now write the incredibly long WAT2 keyword
count = 1;
for(i=0;i<strlen(clines);i+=68){
if(count>=0 && count<10)
sprintf(keyword,"WAT2_00%d",count);
if(count>=10 && count<100)
sprintf(keyword,"WAT2_0%d",count);
if(count>=100 && count<1000)
sprintf(keyword,"WAT2_%d",count);
fits_write_key(fptr,TSTRING,keyword,clines+i,"",&status);
count++;
}
//Now write the data
firstelem = 1;
npixels = nx;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,electrons,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
// SKY SPECTRUM
naxes[0] = nx;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","SKY","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 2;
if(fits_write_key(fptr,TLONG,"WCSDIM",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE2","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = 1.0;
if(fits_write_key(fptr,TFLOAT,"CDELT1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CDELT2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD2_2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"LTM1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"LTM2_2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAXMAP01","1 0 0 0 ","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT0_001","system=multispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT1_001","wtype=multispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
//Now write the incredibly long WAT2 keyword
count = 1;
for(i=0;i<strlen(clines);i+=68){
if(count>=0 && count<10)
sprintf(keyword,"WAT2_00%d",count);
if(count>=10 && count<100)
sprintf(keyword,"WAT2_0%d",count);
if(count>=100 && count<1000)
sprintf(keyword,"WAT2_%d",count);
fits_write_key(fptr,TSTRING,keyword,clines+i,"",&status);
count++;
}
//Now write the data
firstelem = 1;
npixels = nx;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,skyarr,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
//THAT'S ALL, FOLKS
if(fits_close_file(fptr, &status)){
*error_status = status;
}
*error_status = status;
free(cchunk);
free(clines);
return;
};
void writefloatspec0(char *filename, float *x, float *arr, float *optarr,
float *skyarr, float *lambda, float *fits, float *segWithMasks, float *weights,
long npts, long nx, long ny, float crval, float crpix, float cdelt, int *error_status)
{
fitsfile *fptr; /* pointer to the FITS file, defined in fitsio.h */
long naxes[2], firstelem, npixels;
int status;
char tempstring[FLEN_FILENAME];
char filestring[FLEN_FILENAME] = "!";
int itemp;
float ftemp;
strncpy(tempstring,filename,FLEN_FILENAME);
strncat(filestring,tempstring,FLEN_FILENAME);
printf("Writing FITS file: %s \n",filestring);
status = 0;
if(fits_create_file(&fptr, filestring, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
/* Write an empty PHU */
naxes[0] = 0;
if(fits_create_img(fptr, -32, 0, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
/* Write the 1D galaxy spectrum to the file as an extension*/
//LINSPEC1D
naxes[0] = npts;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = npts;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,arr,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","LINSPEC1D","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(crpix > 0.1){
if(fits_write_key(fptr,TSTRING,"APNUM1","1 1 ","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 1;
if(fits_write_key(fptr,TLONG,"WCSDIM",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","LINEAR","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CRVAL1",&crval,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CRPIX1",&crpix,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD1_1",&cdelt,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT0_001","system=equispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT1_001","wtype=linear label=Wavelength units=angstroms","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = -1.0 * *x;
if(fits_write_key(fptr,TFLOAT,"LTV1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = 1.0;
if(fits_write_key(fptr,TFLOAT,"LTM1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 0;
if(fits_write_key(fptr,TLONG,"DC-FLAG",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
}
//1D sky spectrum
//LINSKY1D
naxes[0] = npts;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = npts;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,skyarr,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","LINSKY1D","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(crpix > 0.1){
if(fits_write_key(fptr,TSTRING,"APNUM1","1 1 ","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 1;
if(fits_write_key(fptr,TLONG,"WCSDIM",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","LINEAR","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CRVAL1",&crval,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CRPIX1",&crpix,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD1_1",&cdelt,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT0_001","system=equispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT1_001","wtype=linear label=Wavelength units=angstroms","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = -1.0 * *x;
if(fits_write_key(fptr,TFLOAT,"LTV1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = 1.0;
if(fits_write_key(fptr,TFLOAT,"LTM1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 0;
if(fits_write_key(fptr,TLONG,"DC-FLAG",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
}
/* Write the optimally extracted galaxy spectrum to the file as an extension */
//OPTSPEC1D
naxes[0] = npts;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = npts;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,optarr,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","OPTSPEC1D","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(crpix > 0.1){
if(fits_write_key(fptr,TSTRING,"APNUM1","1 1 ","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 1;
if(fits_write_key(fptr,TLONG,"WCSDIM",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","LINEAR","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CRVAL1",&crval,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CRPIX1",&crpix,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD1_1",&cdelt,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT0_001","system=equispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT1_001","wtype=linear label=Wavelength units=angstroms","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = -1.0 * *x;
if(fits_write_key(fptr,TFLOAT,"LTV1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = 1.0;
if(fits_write_key(fptr,TFLOAT,"LTM1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 0;
if(fits_write_key(fptr,TLONG,"DC-FLAG",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
}
/* Write the flipped CCD position as an extension */
//CCDXPOS1D
naxes[0] = npts;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = npts;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,x,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","CCDXPOS1D","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
/* Write the wavelengths (if known) to the file as an extension. */
//LAMBDA1D
naxes[0] = npts;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = npts;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,lambda,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","LAMBDA1D","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
/* Write the 2D FITS image to the file as an extension. */
naxes[0] = nx;
naxes[1] = ny;
if(fits_create_img(fptr, -32, 2, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = nx*ny;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,fits,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","SPEC2D","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
/* Write the 2D Segmentation image to the file as an extension. */
naxes[0] = nx;
naxes[1] = ny;
if(fits_create_img(fptr, -32, 2, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = nx*ny;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,segWithMasks,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","SEG2D","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
/* Write the 2D optimal extraction weights image to the file as an extension. */
naxes[0] = nx;
naxes[1] = ny;
if(fits_create_img(fptr, -32, 2, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
firstelem = 1;
npixels = nx*ny;
if(fits_write_img(fptr,TFLOAT,firstelem,npixels,weights,&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","WEIGHTS2D","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_close_file(fptr, &status)){
*error_status = status;
}
*error_status = status;
return;
};
void writeFITS1D(char *filename, float *lambda, float *arr, float *optarr,
float *skyarr, float *electrons, long nx, int *error_status)
{
fitsfile *fptr; /* pointer to the FITS file, defined in fitsio.h */
long naxes[2], firstelem, npixels;
int status;
char tempstring[FLEN_FILENAME];
char filestring[FLEN_FILENAME] = "!";
int itemp;
float ftemp;
char *cchunk;
char *clines;
char keyword[10];
int count;
int i;
//Create an enormous line with the wavelength calibration information
cchunk = malloc(1000);
clines = malloc(1000000);
sprintf(clines,"wtype=multispec spec1 = \"1 1 2 1. %10.2f %d 0. INDEF INDEF 1. 0. 5 %d",(lambda[nx-1]-lambda[0])/count,(int)nx,(int)nx+1);
//Write data to a file
for(i=0;i<nx;i++){
sprintf(cchunk," %10.2f",*(lambda+i));
strcat(clines,cchunk);
}
strcat(clines,"\"");
printf("clines is %d characters long\n",strlen(clines));
//Create the FITS file, over-writing an existing one of the same name if it exists
strncpy(tempstring,filename,FLEN_FILENAME);
strncat(filestring,tempstring,FLEN_FILENAME);
status = 0;
if(fits_create_file(&fptr, filestring, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
//Write an empty PHU with information common to all the other headers
naxes[0] = 0;
if(fits_create_img(fptr, -32, 0, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
// LINEAR OBJECT SPECTRUM
naxes[0] = nx;
if(fits_create_img(fptr, -32, 1, naxes, &status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"EXTNAME","LINEAR","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
itemp = 2;
if(fits_write_key(fptr,TLONG,"WCSDIM",&itemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE2","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"CTYPE1","MULTISPE","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
ftemp = 1.0;
if(fits_write_key(fptr,TFLOAT,"CDELT1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CDELT2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"CD2_2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"LTM1_1",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TFLOAT,"LTM2_2",&ftemp,"",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAXMAP01","1 0 0 0 ","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT0_001","system=multispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
if(fits_write_key(fptr,TSTRING,"WAT1_001","wtype=multispec","",&status)){
fits_close_file(fptr, &status);
*error_status = status;
}
//Now write the incredibly long WAT2 keyword
count = 1;
for(i=0;i<strlen(clines);i+=68){
if(count>=0 && count<10)
sprintf(keyword,"WAT2_00%d",count);
if(count>=10 && count<100)
sprintf(keyword,"WAT2_0%d",count);
if(count>=100 && count<1000)
sprintf(keyword,"WAT2_%d",count);
fits_write_key(fptr,TSTRING,keyword,clines+i,"",&status);
count++;
}
//Now write the data