/usr/include/casacore/fits/FITS/hdu.h is in casacore-dev 2.2.0-2.
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//# Copyright (C) 1993,1994,1995,1996,1997,1999,2000,2002,2003
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef FITS_HDU_H
#define FITS_HDU_H
# include <casacore/casa/aips.h>
# include <casacore/fits/FITS/fits.h>
# include <casacore/fits/FITS/blockio.h>
# include <casacore/casa/BasicSL/String.h>
# include <casacore/casa/Arrays/Vector.h>
//# # include <stdarg.h> // If we ever wan to put varargs support back
namespace casacore { //# NAMESPACE CASACORE - BEGIN
class FitsInput;
class FitsOutput;
//<summary> base class that defines a HDU </summary>
//<synopsis>
// The class HeaderDataUnit contains what is common to all
// header-data-units, including the collection of keywords.
// From this class a number of FITS header-data-units are
// derived, each of them with their own rich assortment of
// functions for accessing and manipulating data of specific types.
//
// The following inheritence hierarchy illustrates the current
// derived classes:
//<srcblock>
//
// HeaderDataUnit
// / |
// / |
// PrimaryArray ExtensionHeaderDataUnit
// / | \ |
// / | \ |
// PrimaryGroup | ImageExtension |
// | |
// PrimaryTable BinaryTableExtension
// /
// /
// AsciiTableExtension
//</srcblock>
//</synopsis>
class HeaderDataUnit {
friend std::ostream & operator << (std::ostream &, HeaderDataUnit &);
public:
virtual ~HeaderDataUnit();
Int dims() const { return no_dims; }
Int dim(int n) const { return (0<no_dims && n<no_dims ? dimn[n] : 0); }
OFF_T fitsdatasize() const { return fits_data_size; }
FITS::ValueType datatype() const { return data_type; }
Int fitsitemsize() const { return fits_item_size; }
Int localitemsize() const { return local_item_size; }
FITS::HDUType hdutype() const { return hdu_type; }
// error handling and error codes that can be returned
//<group>
enum HDUErrs { OK, NOMEM, MISSKEY, BADBITPIX, NOAXISN,
NOPCOUNT, NOGCOUNT, BADPCOUNT, BADGCOUNT, NOGROUPS,
BADNAXIS, BADREC, BADTYPE, BADRULES, BADSIZE, BADOPER,
BADCONV, BADIO };
int err() const { return err_status; }
//</group>
// skipping one or more HDU's
//<group>
int skip(uInt n);
int skip();
//</group>
// write the current header
int write_hdr(FitsOutput &);
// Determines the HDU type and the data type
// Parameterss: keyword list, hdu type, data type, error handler and
// error status.
// Returns False if a serious error was detected, otherwise True
static Bool determine_type(FitsKeywordList &, FITS::HDUType &,
FITS::ValueType &, FITSErrorHandler, HDUErrs &);
// Compute the total size of the data associated with an HDU.
// The number of dimensions is also determined. This routine
// assumes that hdu type has been appropriately set, but it may
// be changed in the process. Data type is also determined.
// Returns False if a serious error was detected, otherwise True
static Bool compute_size(FitsKeywordList &, OFF_T &, Int &,
FITS::HDUType &, FITS::ValueType &, FITSErrorHandler, HDUErrs &);
// Operations on the HDU's keyword list
//<group>
ConstFitsKeywordList &kwlist(){ return constkwlist_;}
// return the header of the chdu as a vector of String. You can
// force the strings to be length 80 (padded with spaces)
Vector<String> kwlist_str(Bool length80=False);
void firstkw() { kwlist_.first(); }
void lastkw() { kwlist_.last(); }
const FitsKeyword *nextkw() { return kwlist_.next(); }
const FitsKeyword *prevkw() { return kwlist_.prev(); }
const FitsKeyword *currkw() { return kwlist_.curr(); }
const FitsKeyword *kw(int n) { return kwlist_(n); }
//# 07/21/98 AKH Added const to quite Apogee warnings:
const FitsKeyword *kw(const FITS::ReservedName &n) {
return kwlist_(n); }
const FitsKeyword *nextkw(FITS::ReservedName &n) {
return kwlist_.next(n); }
const FitsKeyword *kw(FITS::ReservedName &n, int i) {
return kwlist_(n,i); }
const FitsKeyword *nextkw(FITS::ReservedName &n, int i) {
return kwlist_.next(n,i); }
const FitsKeyword *kw(const char *n) { return kwlist_(n); }
const FitsKeyword *nextkw(const char *n) { return kwlist_.next(n); }
void mk(FITS::ReservedName k, Bool v, const char *c = 0);
void mk(FITS::ReservedName k, const char *v = 0, const char *c = 0);
void mk(FITS::ReservedName k, Int v, const char *c = 0);
void mk(FITS::ReservedName k, double v, const char *c = 0);
void mk(int n, FITS::ReservedName k, Bool v, const char *c = 0);
void mk(int n, FITS::ReservedName k, const char *v, const char *c = 0);
void mk(int n, FITS::ReservedName k, Int v, const char *c = 0);
void mk(int n, FITS::ReservedName k, double v, const char *c = 0);
void mk(const char *n, Bool v, const char *c = 0);
void mk(const char *n, const char *v = 0, const char *c = 0);
void mk(const char *n, Int v, const char *c = 0);
void mk(const char *n, float v, const char *c = 0);
void mk(const char *n, double v, const char *c = 0);
void mk(const char *n, Int r, Int i, const char *c = 0);
void mk(const char *n, float r, float i, const char *c = 0);
void mk(const char *n, double r, double i, const char *c = 0);
void spaces(const char *n = 0, const char *c = 0);
void comment(const char *n = 0, const char *c = 0);
void history(const char *c = 0);
//</group>
Bool notnull(double x) const { return double_null < x ? True : False; }
Bool notnull(char *s) const { return ! s ? False : (s[0] != '\0' ? True : False); }
Bool notnull(Int l) const { return Int_null < l ? True : False; }
protected:
// For input -- ~ should delete the keyword list: kwflag = 1
HeaderDataUnit(FitsInput &, FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
// For output -- ~ should not delete keyword list: kwflag = 0
// 07/21/98 AKH Clarification: HeaderDataUnit has a copy of the
// FitsKeywordList, and should delete it. The kwflag
// comments above are not important now.
HeaderDataUnit(FitsKeywordList &, FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler,
FitsInput * = 0);
// constructor for objects that write only required keyword to fits file.
// the write method to call by these object should be those for the specific
// hdu, such as write_bintbl_hdr().
HeaderDataUnit(FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler,
FitsInput * = 0);
// for write required keywords only to use.
bool init_data_unit( FITS::HDUType t );
FitsKeywordList &kwlist_;
ConstFitsKeywordList constkwlist_;
void posEnd();
FitsInput *fin;
FITSErrorHandler errfn;
HDUErrs err_status;
void errmsg(HDUErrs, const char *);
Int no_dims; // number of dimensions
Int *dimn; // size of dimension N
//uInt fits_data_size; // size in bytes of total amount of data
OFF_T fits_data_size; // size in bytes of total amount of data
FITS::ValueType data_type; // type of data - derived from BITPIX
Int fits_item_size; // size in bytes of an item of FITS data
Int local_item_size; // size in bytes of an item of local data
FITS::HDUType hdu_type; // type of header/data unit
char pad_char; // char to pad FITS data block
//<group>
char * assign(FITS::ReservedName);
char * assign(FITS::ReservedName, int);
double asgdbl(FITS::ReservedName, double);
double asgdbl(FITS::ReservedName, int, double);
//</group>
double double_null;
char char_null;
Int Int_null;
public:
int get_hdr(FITS::HDUType, FitsKeywordList &);
int read_data(char *, Int);
int write_data(FitsOutput &, char *, Int);
OFF_T read_all_data(char *);
int write_all_data(FitsOutput &, char *);
};
inline std::ostream & operator << (std::ostream &o, HeaderDataUnit &h) {
return o << h.kwlist_; }
inline void HeaderDataUnit::mk(FITS::ReservedName k, Bool v, const char *c) {
posEnd(); kwlist_.mk(k,v,c); }
inline void HeaderDataUnit::mk(FITS::ReservedName k, const char *v,
const char *c) { posEnd(); kwlist_.mk(k,v,c); }
inline void HeaderDataUnit::mk(FITS::ReservedName k, Int v, const char *c) {
posEnd(); kwlist_.mk(k,v,c); }
inline void HeaderDataUnit::mk(FITS::ReservedName k, double v, const char *c) {
posEnd(); kwlist_.mk(k,v,c); }
inline void HeaderDataUnit::mk(int n, FITS::ReservedName k, Bool v,
const char *c) { posEnd(); kwlist_.mk(n,k,v,c); }
inline void HeaderDataUnit::mk(int n, FITS::ReservedName k, const char *v,
const char *c) { posEnd(); kwlist_.mk(n,k,v,c); }
inline void HeaderDataUnit::mk(int n, FITS::ReservedName k, Int v,
const char *c) { posEnd(); kwlist_.mk(n,k,v,c); }
inline void HeaderDataUnit::mk(int n, FITS::ReservedName k, double v,
const char *c) { posEnd(); kwlist_.mk(n,k,v,c); }
inline void HeaderDataUnit::mk(const char *n, Bool v, const char *c) {
posEnd(); kwlist_.mk(n,v,c); }
inline void HeaderDataUnit::mk(const char *n, const char *v, const char *c) {
posEnd(); kwlist_.mk(n,v,c); }
inline void HeaderDataUnit::mk(const char *n, Int v, const char *c) {
posEnd(); kwlist_.mk(n,v,c); }
inline void HeaderDataUnit::mk(const char *n, float v, const char *c) {
posEnd(); kwlist_.mk(n,v,c); }
inline void HeaderDataUnit::mk(const char *n, double v, const char *c) {
posEnd(); kwlist_.mk(n,v,c); }
inline void HeaderDataUnit::mk(const char *n, Int r, Int i, const char *c) {
posEnd(); kwlist_.mk(n,r,i,c); }
inline void HeaderDataUnit::mk(const char *n, float r, float i, const char *c) {
posEnd(); kwlist_.mk(n,r,i,c); }
inline void HeaderDataUnit::mk(const char *n, double r, double i,
const char *c) { posEnd(); kwlist_.mk(n,r,i,c); }
inline void HeaderDataUnit::spaces(const char *n, const char *c) {
posEnd(); kwlist_.spaces(n,c); }
inline void HeaderDataUnit::comment(const char *n, const char *c) {
posEnd(); kwlist_.comment(n,c); }
inline void HeaderDataUnit::history(const char *c) {
posEnd(); kwlist_.history(c); }
//<summary> templated primary array base class of given type </summary>
//<synopsis>
// A Primary Data Array is represented by the following:
//<srcblock>
// <Type> data_array [NAXIS1][NAXIS2]...[NAXISN]
//</srcblock>
//
// For a PrimaryArray, dims() gives the number of dimensions
// and dim(i) gives the value of the i-th dimension
//
// WARNING! Multi-dimensional arrays are stored in FORTRAN order,
// NOT in C order. Options on the store, copy, and move functions exist
// to convert from one order to the other, if that is necessary.
//
//
// It is important to understand the proper sequence of operations with
// respect to I/O and data access. For input, the `read()' functions
// allocate an internal buffer of the appropriate size, if not already
// allocated, as well as reading and converting data; a `read()' function
// must be performed prior to accessing the data, i. e. before executing
// any `()', `data()', `copy()', or `move()' function. For output, the
// `store()' function similarly allocates an internal buffer before
// transfering data, and must be executed prior to any data access or
// `write()' function. Note: If you call any version of store(), do not
// call set_next().
//
// Writing portions of an array at a time, rather than the entire array,
// is a special case. The `set_next()' function is provided for this
// purpose. It declares the intention to write out the next N elements and
// must be executed prior to any `data()' function. It allocates a buffer
// of appropriate size, if not already allocated. Again, via the `data()'
// functions, one accesses the array as if the entire array were in
// memory. The `write()' function always writes the number of current
// elements in the internal buffer. The sequence of operations for each
// portion of the array written would be:
// <ul>
// <li> `set_next(N)',
// <li> fill the array using `data(N)' or other `data()' functions
// <li> `write(fout)'.
// </ul>
// The `set_next()' function must NOT be used with
// `read()' or `store()' functions; unpredictable results will occur.
//<example>
// The following example illustrates the output cases.
//
// Suppose we have an image array with 512 rows and 1024 columns
// stored in C-order. The C declaration would be:
//<srcblock>
// int source[1024][512];
//</srcblock>
// To write out the entire array:
//<srcblock>
// FitsOutput fout; // some properly constructed FitsOutput
// PrimaryArray<FitsLong> pa; // some properly constructed PrimaryArray
// pa.store(source,CtoF);
// pa.write(fout);
//</srcblock>
//
// Suppose we wanted to write out the two-dimensional image array a column
// at a time, rather than write out the entire array. For FITS, dim(0)
// is 512, dim(1) is 1024. The following code fragment writes one column
// at a time in the proper FITS Fortran-order.
//
//<srcblock>
// for (i = 0; i < dim(1); ++i) {
// pa.set_next(dim(0));
// for (j = 0; j < dim(0); ++j)
// data(j,i) = source[i][j];
// pa.write(fout);
// }
//</srcblock>
//</example>
//
//</synopsis>
template <class TYPE>
class PrimaryArray : public HeaderDataUnit {
public:
typedef TYPE ElementType;
// constructor from a FitsInput
PrimaryArray(FitsInput &, FITSErrorHandler= FITSError::defaultHandler);
// constructor from a FitsKeywordList
PrimaryArray(FitsKeywordList &,
FITSErrorHandler= FITSError::defaultHandler);
// constructor does not require a FitsKeywordList. call write_priArr_hdr() after construction.
PrimaryArray(FITSErrorHandler= FITSError::defaultHandler);
// destructor
virtual ~PrimaryArray();
// General access routines for a primary array
//<group>
double bscale() const { return bscale_x; }
double bzero() const { return bzero_x; }
char *bunit() const { return bunit_x; }
Bool isablank() const { return isablank_x; }
Int blank() const { return blank_x; }
char *ctype(int n) const { return ctype_x[n]; }
double crpix(int n) const { return crpix_x[n]; }
double crota(int n) const { return crota_x[n]; }
double crval(int n) const { return crval_x[n]; }
double cdelt(int n) const { return cdelt_x[n]; }
double datamax() const { return datamax_x; }
double datamin() const { return datamin_x; }
OFF_T nelements() const { return totsize; }
//</group>
// The overloaded operator functions `()' all return physical data, i. e.,
// data to which bscale() and bzero() have been applied, via the formula
//<srcblock>
// physical_data[i] = bscale() * raw_data[i] + bzero().
//</srcblock>
//<group>
double operator () (int, int, int, int, int) const;
double operator () (int, int, int, int) const;
double operator () (int, int, int) const;
double operator () (int, int) const;
double operator () (int) const;
//</group>
// The various `data()' functions allow one to access and set the raw data
// itself.
//<group>
TYPE & data(int, int, int, int, int);
TYPE & data(int, int, int, int);
TYPE & data(int, int, int);
TYPE & data(int, int);
TYPE & data(int);
//</group>
// The `store()', `move()' and `copy()' functions allow bulk data
// transfer between the internal FITS array and an external data
// storage area. The external storage must have already been allocated
// and it is assumed that the entire data array is in memory.
// `store()' transfers raw data at `source' into the FITS array; an
// allowable option is CtoF, which specifies to convert the array from
// C-order to Fortran-order. `move()' is the opposite of `store()'.
// `move()' transfers raw data from the FITS array to `target'; an
// allowable option is FtoC, which specifies to convert the array from
// Fortran-order to C-order. `copy()' is similar to `move()' except
// that what is copied is physical data and not raw data; the physical
// data can be either double or float. copy() also turns blanks into
// NaN's.
//<group>
int store(const TYPE *source, FITS::FitsArrayOption = FITS::NoOpt);
void copy(double *target, FITS::FitsArrayOption = FITS::NoOpt) const;
void copy(float *target, FITS::FitsArrayOption = FITS::NoOpt) const;
void move(TYPE *target, FITS::FitsArrayOption = FITS::NoOpt) const;
// <group>
// Use these versions if you are reading/writing "chunk by
// chunk." No FtoC option is available. You are responsible for
// ensuring that npixels corresponds to he number actually read or
// written. Note that copy() turns blanks into NaN's.
int store(const TYPE *source, int npixels);
void copy(double *target, int npixels) const;
void copy(float *target, int npixels) const;
void move(TYPE *target, int npixels) const;
// </group>
// </group>
//<group>
int write_priArr_hdr( FitsOutput &fout, int simple, int bitpix,
int naxis, long naxes[], int extend );
//</group>
// The `read()' and `write()' functions control reading and writing data
// from the external FITS I/O medium into the FITS array. Appropriate
// conversions are made between FITS and local data representations. One
// can read the entire array into memory, or one can only read portions of
// the array. In the latter case, one must specify that the next N
// elements are to be read or written. Note that the number of elements
// must be specified, NOT the number of bytes. If one reads portions of
// the array, as opposed to the entire array, only that portion is in
// memory at a given time. One can still access the elements of the array
// via the `()' and `data()' functions, as if the entire array was in
// memory; obviously care must be taken in this case to access only those
// portions that are actually in memory.
//<group>
virtual int read();
virtual int read( int );
virtual int write(FitsOutput &);
virtual OFF_T set_next(OFF_T);
//</group>
//### if these, even as interspersed comments, cxx2html repeats the global
//# group info..
//# read: read entire array into memory
//# read() read next N elements into memory
//# write; write current data
//# set_next(): prepare to write next N elements
protected:
// construct from a FitsInput with given HDU type
PrimaryArray(FitsInput &, FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
// construct from a FitsKeywordList with given HDU type
PrimaryArray(FitsKeywordList &, FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
// construct witout FitsKeywordList for given HDU type( for ImageExtension and PrimaryGroup)
PrimaryArray(FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
double bscale_x;
double bzero_x;
char *bunit_x;
Bool isablank_x;
Int blank_x;
char **ctype_x;
double *crpix_x;
double *crota_x;
double *crval_x;
double *cdelt_x;
double datamax_x;
double datamin_x;
OFF_T totsize;
int *factor; // factors needed to compute array position offsets
// compute a linear offset from array indicies
//<group>
int offset(int, int) const;
int offset(int, int, int) const;
int offset(int, int, int, int) const;
int offset(int, int, int, int, int) const;
//</group>
OFF_T alloc_elems; // current number of allocated elements
OFF_T beg_elem; // offset of first element in the buffer
OFF_T end_elem; // offset of last element in the buffer
// the allocated array
TYPE *array;
void pa_assign();
};
typedef PrimaryArray<unsigned char> BytePrimaryArray;
typedef PrimaryArray<short> ShortPrimaryArray;
typedef PrimaryArray<FitsLong> LongPrimaryArray;
typedef PrimaryArray<float> FloatPrimaryArray;
typedef PrimaryArray<double> DoublePrimaryArray;
//<summary> IMAGE extension of given type </summary>
//<templating>
// <li> typedef ImageExtension<unsigned char> ByteImageExtension;
// <li> typedef ImageExtension<short> ShortImageExtension;
// <li> typedef ImageExtension<FitsLong> LongImageExtension;
// <li> typedef ImageExtension<float> FloatImageExtension;
// <li> typedef ImageExtension<double> DoubleImageExtension;
//</templating>
template <class TYPE>
class ImageExtension : public PrimaryArray<TYPE> {
public:
typedef TYPE ElementType;
ImageExtension(FitsInput &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
ImageExtension(FitsKeywordList &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
// constructor for header consisted required keywords only
ImageExtension(FITSErrorHandler errhandler = FITSError::defaultHandler);
~ImageExtension();
char *xtension() { return xtension_x; }
char *extname() { return extname_x; }
Int extver() { return extver_x; }
Int extlevel() { return extlevel_x; }
Int pcount() { return pcount_x; }
Int gcount() { return gcount_x; }
// write required keywords for ImageExtension
int write_imgExt_hdr( FitsOutput &fout,
int bitpix, int naxis, long *naxes);
protected:
char *xtension_x;
char *extname_x;
Int extver_x;
Int extlevel_x;
Int pcount_x;
Int gcount_x;
private:
void ie_assign();
//# Make members in parent known
protected:
using PrimaryArray<TYPE>::assign;
using PrimaryArray<TYPE>::errmsg;
using PrimaryArray<TYPE>::init_data_unit;
using PrimaryArray<TYPE>::pa_assign;
using PrimaryArray<TYPE>::char_null;
using PrimaryArray<TYPE>::kwlist_;
using PrimaryArray<TYPE>::errfn;
using PrimaryArray<TYPE>::hdu_type;
using PrimaryArray<TYPE>::data_type;
using PrimaryArray<TYPE>::fits_data_size;
using PrimaryArray<TYPE>::fits_item_size;
using PrimaryArray<TYPE>::array;
using PrimaryArray<TYPE>::BADOPER;
};
typedef ImageExtension<unsigned char> ByteImageExtension;
typedef ImageExtension<short> ShortImageExtension;
typedef ImageExtension<FitsLong> LongImageExtension;
typedef ImageExtension<float> FloatImageExtension;
typedef ImageExtension<double> DoubleImageExtension;
//<summary> Random Group datastructure </summary>
//<synopsis>
// A Random Group Structure is represented by the following:
//<srcblock>
// struct GroupData {
// <Type> group_parms [PCOUNT];
// <Type> data_array [NAXIS2][NAXIS3]...[NAXISN];
// } group_data[GCOUNT];
//</srcblock>
//</synopsis>
//<templating>
//#until cxx2html can handle this, duplicate
// <li>typedef PrimaryGroup<unsigned char> BytePrimaryGroup;
// <li> typedef PrimaryGroup<short> ShortPrimaryGroup;
// <li> typedef PrimaryGroup<FitsLong> LongPrimaryGroup;
// <li> typedef PrimaryGroup<float> FloatPrimaryGroup;
// <li> typedef PrimaryGroup<double> DoublePrimaryGroup;
//</templating>
//<note role=warning>
// Please note that the NOST has deprecated the Random Group
// datastructure, it has been replaced by the much more powerfull
// BINTABLE extension.
//</note>
template <class TYPE>
class PrimaryGroup : public PrimaryArray<TYPE> {
public:
PrimaryGroup(FitsInput &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
PrimaryGroup(FitsKeywordList &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
// constructor for header consisted required keywords only
PrimaryGroup(FITSErrorHandler errhandler = FITSError::defaultHandler);
~PrimaryGroup();
// Return basic parameters of a random group
//<group>
Int gcount() const { return gcount_x; }
Int pcount() const { return pcount_x; }
char *ptype(int n) const { return ptype_x[n]; }
double pscal(int n) const { return pscal_x[n]; }
double pzero(int n) const { return pzero_x[n]; }
//</group>
Int currgroup() const { return current_group; }
double parm(int); // return physical parms
TYPE & rawparm(int); // access raw parms
void storeparm(const TYPE *source);
void copyparm(double *target) const;
void copyparm(float *target) const;
void moveparm(TYPE *target) const;
// read, or write the next group
//<group>
int read();
int write(FitsOutput &);
//</group>
// write the required keywords for PrimaryGroup
//<group>
int write_priGrp_hdr( FitsOutput &fout, int simple, int bitpix,
int naxis, long naxes[], long pcount, long gcount );
//</group>
// disable these functions, since they
// are inherited from PrimaryArray
//<group>
OFF_T set_next(OFF_T) { return 0; }
int read(int) { return -1; }
//</group>
protected:
Int pcount_x;
Int gcount_x;
char **ptype_x;
double *pscal_x;
double *pzero_x;
TYPE *group_parm;
Int current_group;
private:
void pg_assign();
//# Make members in parent known
protected:
using PrimaryArray<TYPE>::assign;
using PrimaryArray<TYPE>::errmsg;
using PrimaryArray<TYPE>::init_data_unit;
using PrimaryArray<TYPE>::pa_assign;
using PrimaryArray<TYPE>::asgdbl;
using PrimaryArray<TYPE>::nelements;
using PrimaryArray<TYPE>::localitemsize;
using PrimaryArray<TYPE>::fitsitemsize;
using PrimaryArray<TYPE>::read_data;
using PrimaryArray<TYPE>::write_data;
using PrimaryArray<TYPE>::char_null;
using PrimaryArray<TYPE>::kwlist_;
using PrimaryArray<TYPE>::errfn;
using PrimaryArray<TYPE>::err_status;
using PrimaryArray<TYPE>::hdu_type;
using PrimaryArray<TYPE>::data_type;
using PrimaryArray<TYPE>::fits_data_size;
using PrimaryArray<TYPE>::fits_item_size;
using PrimaryArray<TYPE>::array;
using PrimaryArray<TYPE>::totsize;
using PrimaryArray<TYPE>::dimn;
using PrimaryArray<TYPE>::no_dims;
using PrimaryArray<TYPE>::factor;
using PrimaryArray<TYPE>::ctype_x;
using PrimaryArray<TYPE>::crpix_x;
using PrimaryArray<TYPE>::crota_x;
using PrimaryArray<TYPE>::crval_x;
using PrimaryArray<TYPE>::cdelt_x;
using PrimaryArray<TYPE>::BADOPER;
using PrimaryArray<TYPE>::OK;
using PrimaryArray<TYPE>::NOMEM;
using PrimaryArray<TYPE>::BADIO;
};
typedef PrimaryGroup<unsigned char> BytePrimaryGroup;
typedef PrimaryGroup<short> ShortPrimaryGroup;
typedef PrimaryGroup<FitsLong> LongPrimaryGroup;
typedef PrimaryGroup<float> FloatPrimaryGroup;
typedef PrimaryGroup<double> DoublePrimaryGroup;
//<summary> Primary Table structure </summary>
//<templating>
// <li> typedef PrimaryTable<unsigned char> BytePrimaryTable;
// <li> typedef PrimaryTable<short> ShortPrimaryTable;
// <li> typedef PrimaryTable<FitsLong> LongPrimaryTable;
// <li> typedef PrimaryTable<float> FloatPrimaryTable;
// <li> typedef PrimaryTable<double> DoublePrimaryTable;
//</templating>
template <class TYPE>
class PrimaryTable : public PrimaryArray<TYPE> {
public:
typedef TYPE ElementType;
PrimaryTable(FitsInput &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
PrimaryTable(FitsKeywordList &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
// constructor for header consisted required keywords only
PrimaryTable(FITSErrorHandler errhandler = FITSError::defaultHandler);
~PrimaryTable();
// write required keywords for PrimaryTable
int write_priTable_hdr( FitsOutput &fout,
int bitpix, int naxis, long *naxes);
int read();
int read(int) { return -1; }
int write(FitsOutput &){ return -1; }
char* object() const { return object_x; }
char* telescop() const { return telescop_x; }
char* instrume() const { return instrume_x; }
char* dateobs() const { return dateobs_x; }
char* datemap() const { return datemap_x; }
char* bunit() const { return bunit_x; }
float bscal() const { return bscale_x; }
float bzero() const { return bzero_x; }
float equinox() const { return equinox_x; }
float altrpix() const { return altrpix_x; }
protected:
char* object_x; //OBJECT
char* telescop_x; //TELESCOP
char* instrume_x; //INSTRUME
char* dateobs_x; //DATE-OBS
char* datemap_x; //DATE-MAP
Float bscale_x; //BSCALE
Float bzero_x; //BZERO
char* bunit_x; //BUNIT
Float equinox_x; //EQUINOX
Float altrpix_x; //ALTRPIX
private:
void pt_assign();
//# Make members in parent known
protected:
using PrimaryArray<TYPE>::assign;
using PrimaryArray<TYPE>::errmsg;
using PrimaryArray<TYPE>::init_data_unit;
using PrimaryArray<TYPE>::pa_assign;
using PrimaryArray<TYPE>::asgdbl;
using PrimaryArray<TYPE>::nelements;
using PrimaryArray<TYPE>::localitemsize;
using PrimaryArray<TYPE>::fitsitemsize;
using PrimaryArray<TYPE>::read_data;
using PrimaryArray<TYPE>::write_data;
using PrimaryArray<TYPE>::char_null;
using PrimaryArray<TYPE>::kwlist_;
using PrimaryArray<TYPE>::errfn;
using PrimaryArray<TYPE>::err_status;
using PrimaryArray<TYPE>::hdu_type;
using PrimaryArray<TYPE>::data_type;
using PrimaryArray<TYPE>::fits_data_size;
using PrimaryArray<TYPE>::fits_item_size;
using PrimaryArray<TYPE>::array;
using PrimaryArray<TYPE>::totsize;
using PrimaryArray<TYPE>::dimn;
using PrimaryArray<TYPE>::no_dims;
using PrimaryArray<TYPE>::factor;
using PrimaryArray<TYPE>::ctype_x;
using PrimaryArray<TYPE>::crpix_x;
using PrimaryArray<TYPE>::crota_x;
using PrimaryArray<TYPE>::crval_x;
using PrimaryArray<TYPE>::cdelt_x;
using PrimaryArray<TYPE>::BADOPER;
using PrimaryArray<TYPE>::OK;
using PrimaryArray<TYPE>::NOMEM;
using PrimaryArray<TYPE>::BADIO;
};
typedef PrimaryTable<unsigned char> BytePrimaryTable;
typedef PrimaryTable<short> ShortPrimaryTable;
typedef PrimaryTable<FitsLong> LongPrimaryTable;
typedef PrimaryTable<float> FloatPrimaryTable;
typedef PrimaryTable<double> DoublePrimaryTable;
//<summary> base class for generalized exentensions HDU </summary>
class ExtensionHeaderDataUnit : public HeaderDataUnit {
public:
ExtensionHeaderDataUnit(FitsInput &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
ExtensionHeaderDataUnit(FitsKeywordList &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
~ExtensionHeaderDataUnit();
char *xtension() { return xtension_x; }
char *extname() { return extname_x; }
Int extver() { return extver_x; }
Int extlevel() { return extlevel_x; }
Int pcount() { return pcount_x; }
Int gcount() { return gcount_x; }
// read next N bytes into addr
int read(char *addr, int nbytes) {
return read_data(addr, Int(nbytes)); }
// write next N bytes from addr to the FITS output fout
int write(FitsOutput &fout, char *addr, int nbytes) {
return write_data(fout,addr,nbytes); }
protected:
ExtensionHeaderDataUnit(FitsInput &, FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
ExtensionHeaderDataUnit(FitsKeywordList &, FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
// This constructor is used for writing only required keywords.
ExtensionHeaderDataUnit(FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
char *xtension_x;
char *extname_x;
Int extver_x;
Int extlevel_x;
Int pcount_x;
Int gcount_x;
private:
void ex_assign();
};
//<summary> helper class </summary>
class FitsBase {
friend class BinaryTableExtension;
friend class AsciiTableExtension;
public:
FitsBase(const FITS::ValueType &t, int n) : no_elements(n),
data_type(t) { }
virtual ~FitsBase();
unsigned int nelements() const { return (unsigned int)no_elements; }
virtual int fitsfieldsize() const = 0;
virtual int localfieldsize() const = 0;
virtual void *data() = 0;
virtual int dims() const;
virtual int dim(int n) const;
virtual int *vdim();
FITS::ValueType fieldtype() const { return data_type; }
static FitsBase *make(const FITS::ValueType &, int = 1);
static FitsBase *make(const FITS::ValueType &, int, int *);
static FitsBase *make(FitsBase &);
FitsBase & operator = (FitsBase &);
virtual void show(std::ostream &) = 0;
protected:
int no_elements; // the number of elements in the field
FITS::ValueType data_type;
virtual void setaddr(void **) = 0;
};
inline std::ostream & operator << (std::ostream &o, FitsBase &x) {
x.show(o); return o;
}
//<summary> helper class </summary>
//<note>
// Note that FitsField does not allocate space for the data.
// Space is external to FitsField and its address is set via the
// setaddr function.
//</note>
template <class TYPE>
class FitsField : public FitsBase {
public:
FitsField(int n = 1) :
FitsBase(FITS::getfitstype(NoConvert<TYPE>()),n), field(0) { }
~FitsField();
TYPE & operator () () { return (*field)[0]; }
TYPE & operator () (int i) { return (*field)[i]; }
FitsField<TYPE> & operator = (const TYPE &x) {
(*field)[0] = x; return *this; }
int fitsfieldsize() const;
int localfieldsize() const;
void *data();
void show(std::ostream &);
protected:
TYPE **field;
void setaddr(void **addr);
};
//<summary> helper class </summary>
//<templating>
//#until cxx2html can handle this, duplicate
// <li> typedef FitsField<FitsLogical> LogicalFitsField;
// <li> typedef FitsField<FitsBit> BitFitsField;
// <li> typedef FitsField<char> CharFitsField;
// <li> typedef FitsField<unsigned char> ByteFitsField;
// <li> typedef FitsField<short> ShortFitsField;
// <li> typedef FitsField<FitsLong> LongFitsField;
// <li> typedef FitsField<float> FloatFitsField;
// <li> typedef FitsField<double> DoubleFitsField;
// <li> typedef FitsField<Complex> ComplexFitsField;
// <li> typedef FitsField<IComplex> IComplexFitsField;
// <li> typedef FitsField<DComplex> DComplexFitsField;
// <li> typedef FitsField<FitsVADesc> VADescFitsField;
//</templating>
//<note role=caution>
// Bit fields require special treatment
//</note>
template <> class FitsField<FitsBit> : public FitsBase {
public:
FitsField(int n = 1);
~FitsField();
FitsField<FitsBit> & operator () () { byte_offset = 0; mask = 0200;
return *this; }
FitsField<FitsBit> & operator () (unsigned i) {
byte_offset = i / 8; mask = 0200 >> (i % 8); return *this; }
FitsField<FitsBit> & operator = (unsigned i) {
(*field)[byte_offset] =
(i == 0 ? ((*field)[byte_offset] & ~mask) :
((*field)[byte_offset] | mask)); return *this; }
int fitsfieldsize() const;
int localfieldsize() const;
operator int() { return (((*field)[byte_offset] & mask) != 0); }
void *data();
void show(std::ostream &);
protected:
FitsBit **field;
unsigned char mask;
int byte_offset;
void setaddr(void **addr);
};
typedef FitsField<FitsLogical> LogicalFitsField;
typedef FitsField<FitsBit> BitFitsField;
typedef FitsField<char> CharFitsField;
typedef FitsField<unsigned char> ByteFitsField;
typedef FitsField<short> ShortFitsField;
typedef FitsField<FitsLong> LongFitsField;
typedef FitsField<float> FloatFitsField;
typedef FitsField<double> DoubleFitsField;
typedef FitsField<Complex> ComplexFitsField;
typedef FitsField<IComplex> IComplexFitsField;
typedef FitsField<DComplex> DComplexFitsField;
typedef FitsField<FitsVADesc> VADescFitsField;
//<summary> FITS array of given type </summary>
template <class TYPE>
class FitsArray : public FitsField<TYPE> {
public:
FitsArray(int, const int *);
~FitsArray();
TYPE & operator () (int d0, int d1);
TYPE & operator () (int, int, int);
TYPE & operator () (int, int, int, int);
TYPE & operator () (int, int, int, int, int);
int dims() const;
int dim(int n) const;
int *vdim();
protected:
int no_dims;
int *dimn;
int *factor;
//# Make members in parent known
protected:
using FitsField<TYPE>::no_elements;
using FitsField<TYPE>::field;
};
//<summary> FITS array of FitsBit type </summary>
//<note>
// We must specify a FitsArray<FitsBit> as a specialization.
//</note>
template <> class FitsArray<FitsBit> : public FitsField<FitsBit> {
public:
FitsArray(int, const int *);
~FitsArray();
FitsField<FitsBit> & operator () (int d0, int d1);
FitsField<FitsBit> & operator () (int, int, int);
FitsField<FitsBit> & operator () (int, int, int, int);
FitsField<FitsBit> & operator () (int, int, int, int, int);
//# Disabled for now - we might eventually want to put varargs support back
//# FitsField<FitsBit> & operator () (int, int, int, int, int, int ...);
int dims() const;
int dim(int n) const;
int *vdim();
protected:
int no_dims;
int *dimn;
int *factor;
};
typedef FitsArray<FitsLogical> LogicalFitsArray;
typedef FitsArray<FitsBit> BitFitsArray;
typedef FitsArray<char> CharFitsArray;
typedef FitsArray<unsigned char> ByteFitsArray;
typedef FitsArray<short> ShortFitsArray;
typedef FitsArray<FitsLong> LongFitsArray;
typedef FitsArray<float> FloatFitsArray;
typedef FitsArray<double> DoubleFitsArray;
typedef FitsArray<Complex> ComplexFitsArray;
typedef FitsArray<IComplex> IComplexFitsArray;
typedef FitsArray<DComplex> DComplexFitsArray;
typedef FitsArray<FitsVADesc> VADescFitsArray;
//<summary> BINTABLE extension </summary>
class BinaryTableExtension : public ExtensionHeaderDataUnit {
public:
BinaryTableExtension(FitsInput &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
BinaryTableExtension(FitsKeywordList &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
// constructor to match write_bintbl_hdr()
BinaryTableExtension( FITSErrorHandler errhandler = FITSError::defaultHandler);
virtual ~BinaryTableExtension();
// return basic elements of a table
//<group>
Int nrows() const { return dim(1); }
Int ncols() const { return tfields_x; }
uInt rowsize() const { return fitsrowsize; }
Int tfields() const { return tfields_x; }
const char *tform(int n) const { return tform_x[n]; }
double tscal(int n) const { return tscal_x[n]; }
double tzero(int n) const { return tzero_x[n]; }
Bool isatnull(int n) const { return isatnull_x[n]; }
Int tnull(int n) const { return tnull_x[n]; }
const char *ttype(int n) const { return ttype_x[n]; }
const char *tunit(int n) const { return tunit_x[n]; }
const char *tdisp(int n) const { return tdisp_x[n]; }
const char *tdim(int n) const { return tdim_x[n]; }
const char *ctype(int n) const { return ctype_x[n]; }
double crpix(int n) const { return crpix_x[n]; }
double crota(int n) const { return crota_x[n]; }
double crval(int n) const { return crval_x[n]; }
double cdelt(int n) const { return cdelt_x[n]; }
Int theap() const { return theap_x; }
const char *author() const { return author_x; }
const char *referenc() const { return referenc_x; }
//</group>
// binds a FitsField to a column
int bind(int, FitsBase &);
// row selector functions
//<group>
BinaryTableExtension & operator ++ ();
BinaryTableExtension & operator -- ();
BinaryTableExtension & operator () (int);
//</group>
// read entire table into memory
int read();
// read next N rows into memory
int read(int);
// prepare to write the next N rows
int set_next(int);
// write current rows
int write(FitsOutput &);
// create a binary table header without using FitsKeywordList objet.
int write_binTbl_hdr(FitsOutput &, long, int, const char**,
const char**, const char**, const char*, long );
// select a field
FitsBase &field(int i) const { return *fld[i]; }
// get current row
Int currrow() const { return curr_row; }
// sets field addresses in the current row
//void set_fitsrow(Int);
protected:
BinaryTableExtension(FitsInput &, FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
BinaryTableExtension(FitsKeywordList &, FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
BinaryTableExtension(FITS::HDUType,
FITSErrorHandler errhandler = FITSError::defaultHandler);
Int tfields_x;
char **tform_x;
double *tscal_x;
double *tzero_x;
Bool *isatnull_x;
Int *tnull_x;
char **ttype_x;
char **tunit_x;
char **tdisp_x;
char **tdim_x;
char **ctype_x;
double *crpix_x;
double *crota_x;
double *crval_x;
double *cdelt_x;
Int nAxis;
Int theap_x;
char *author_x;
char *referenc_x;
// read and write the next FITS data row
//<group>
virtual int readrow();
virtual int writerow(FitsOutput &);
//</group>
unsigned char *fitsrow; // the FITS data row buffer
uInt *fits_offset; // Offsets to the fields within a FITS row
uInt fitsrowsize; // size in bytes of a FITS data row
Bool isoptimum; // tells whether optimum case exists or not
// sets field addresses in the current row
void set_fitsrow(Int);
unsigned char *table; // the table in local format
uInt tablerowsize; // size in bytes of a table row
uInt alloc_row; // number of currently allocated rows
Int beg_row; // range of rows currently in memory
Int end_row;
Int curr_row;
FitsBase **fld; // The array of fields
uInt *table_offset; // Offsets to the fields within a table row
// data addresses of fields of current row
void **data_addr;
private:
void bt_assign();
};
//<summary> (ascii) TABLE extension </summary>
class AsciiTableExtension : public BinaryTableExtension {
public:
AsciiTableExtension(FitsInput &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
AsciiTableExtension(FitsKeywordList &,
FITSErrorHandler errhandler = FITSError::defaultHandler);
AsciiTableExtension(FITSErrorHandler errhandler = FITSError::defaultHandler);
~AsciiTableExtension();
//# special overriden functions for ascii TABLE only
// position in which column starts
Int tbcol(int n) { return tbcol_x[n]; }
// ascii string that represents the NULL value
char *tnull(int n) { return tnulla_x[n]; }
// write the required keywords for ASCIITableExtension
int write_ascTbl_hdr( FitsOutput &, long,
long, int, const char **, long *,
const char **, const char **, const char *e);
protected:
Int *tbcol_x;
char **tnulla_x;
uInt *fits_width; // widths of the fields within a FITS row
char **format; // converted formats of the fields
// read and write the next FITS data row
//<group>
int readrow();
int writerow(FitsOutput &);
//</group>
private:
void at_assign();
};
} //# NAMESPACE CASACORE - END
#ifndef CASACORE_NO_AUTO_TEMPLATES
#include <casacore/fits/FITS/hdu.tcc>
#endif //# CASACORE_NO_AUTO_TEMPLATES
# endif
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