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FITS.h

    00001 //  Astrophysics Science Division,
    00002 //  NASA/ Goddard Space Flight Center
    00003 //  HEASARC
    00004 //  http://heasarc.gsfc.nasa.gov
    00005 //  e-mail: ccfits@legacy.gsfc.nasa.gov
    00006 //
    00007 //  Original author: Ben Dorman
    00008
    00009 #ifndef FITS_H
    00010 #define FITS_H 1
    00011
    00012 // exception
    00013 #include <exception>
    00014 // string
    00015 #include <string>
    00016 // map
    00017 #include <map>
    00018 // ExtHDU
    00019 #include "ExtHDU.h"
    00020 // HDUCreator
    00021 #include "HDUCreator.h"
    00022 // FitsError
    00023 #include "FitsError.h"
    00024
    00025 namespace CCfits {
    00026   class PHDU;
    00027   class Table;
    00028   class GroupTable;
    00029
    00030 } // namespace CCfits
    00031 //class PHDU;
    00032 extern "C"
    00033 {
    00034 #       include <sys/stat.h>
    00035 }
    00036 #include <memory>
    00037
    00038
    00039 namespace CCfits {
    00624   //  ! The FITS object class. Contains a primary HDU and Extensions indexed by name.
    00625
    00626
    00627
    00628   class FITS
    00629   {
    00630
    00631     public:
    00632
    00633
    00634       class NoSuchHDU : public FitsException  //## Inherits: <unnamed>%396C90CB0236
    00635       {
    00636         public:
    00637             NoSuchHDU (const String& diag, bool silent = true);
    00638
    00639         protected:
    00640         private:
    00641         private: //## implementation
    00642       };
    00643
    00644
    00645       class OperationNotSupported : public FitsException  //## Inherits: <unnamed>%39806C7600D5
    00646       {
    00647         public:
    00648             OperationNotSupported (const String& msg, bool silent = true);
    00649
    00650         protected:
    00651         private:
    00652         private: //## implementation
    00653       };
    00654
    00655
    00656       class CantOpen : public FitsException  //## Inherits: <unnamed>%39C8EB1D02C0
    00657       {
    00658         public:
    00659             CantOpen (const String& diag, bool silent = true);
    00660
    00661         protected:
    00662         private:
    00663         private: //## implementation
    00664       };
    00665
    00666
    00667       struct CantCreate : public FitsException  //## Inherits: <unnamed>%39C8EB10020B
    00668       {
    00669             CantCreate (const String& diag, bool silent = false);
    00670
    00671         public:
    00672         protected:
    00673         private:
    00674         private: //## implementation
    00675       };
    00676
    00677         FITS (const String &name, RWmode rwmode = Read, bool readDataFlag = false, const std::vector<String>& primaryKeys = std::vector<String>());
    00678         //  Open a file and read a specified HDU.
    00679         //
    00680         //  Optional parameter allows the reading of specified primary HDU keys.
    00681         FITS (const String &name, RWmode rwmode, const string &hduName, bool readDataFlag = false, const std::vector<String>& hduKeys = std::vector<String>(), const std::vector<String>& primaryKey = std::vector<String>(), int version = 1);
    00682         //  Read data from a set of specified HDUs. keywords can only be specified for the primary here.
    00683         //  The code will call a different constructor for the case where keywords are required for
    00684         //  the extensions.
    00685         FITS (const String &name, RWmode rwmode, const std::vector<String>& hduNames, bool readDataFlag = false, const std::vector<String>& primaryKey = std::vector<String>());
    00686         //  Initialize a new FITS file object with the primary from a
    00687         //  different file.
    00688         FITS (const String& fileName, const FITS& source);
    00689         //  Fully general FITS HDU reader. May read any part of fits file by
    00690         //  supplying HDU names and version numbers, and optionally
    00691         //  the data read flag.
    00692         FITS (const String &name, RWmode rwmode, const std::vector<String>& hduNames, const std::vector<std::vector<String> >& hduKeys, bool readDataFlag = false, const std::vector<String>& primaryKeys = std::vector<String>(), const std::vector<int>& hduVersions = std::vector<int>());
    00693         //  Writing constructor. Takes a name and information to create an empty
    00694         //  Primary HDU which can then be filled with calls to HDU methods.
    00695         FITS (const String& name, int bitpix, int naxis, long *naxes);
    00696         //  Open a file and read a specified HDU.
    00697         //
    00698         //  Optional parameter allows the reading of specified primary HDU keys.
    00699         FITS (const string &name, RWmode rwmode, int hduIndex, bool readDataFlag = false, const std::vector<String>& hduKeys = std::vector<String>(), const std::vector<String>& primaryKey = std::vector<String>());
    00700         //  Open a file and read a HDU that contains  specified
    00701         //  search keywords with [optional] specified values
    00702         //  (sometimes one just wants to know that the keyword is present).
    00703         //
    00704         //  Optional parameters allows the reading of specified primary HDU keys and specified keywords in
    00705         //  the HDU of interest.
    00706         FITS (const String &name, RWmode rwmode, const std::vector<String>& searchKeys, const std::vector<String> &searchValues, bool readDataFlag = false, const std::vector<String>& hduKeys = std::vector<String>(), const std::vector<String>& primaryKey = std::vector<string>(), int version = 1);
    00707         ~FITS();
    00708
    00709         static void clearErrors ();
    00710         void deleteExtension (const String& doomed, int version = 1);
    00711
    00712         //  Read keys and data from a single ExtHDU in the file.
    00713         void read (const String &hduName, bool readDataFlag = false, const std::vector<String> &keys = std::vector<String>(), int version = 1);
    00714         //  Read multiple ExtHDUs. If the version number needs to be specified
    00715         //  then one must call a different method.
    00716         void read (const std::vector<String> &hduNames, bool readDataFlag = false);
    00717         //  Read selected data from multiple ExtHDUs
    00718         void read (const std::vector<String> &hduNames, const std::vector<std::vector<String> > &keys, bool readDataFlag = false, const std::vector<int>& hduVersions = std::vector<int>());
    00719         //  Read keys and data from a single ExtHDU in the file.
    00720         //  Construct and Read HDU specified by number. One can add further HDUs by number using the HDUCreator factory.
    00721         void read (int hduIndex, bool readDataFlag = false, const std::vector<String> &keys = std::vector<String>());
    00722         //  Open a file and read a HDU that contains  specified
    00723         //  search keywords with [optional] specified values
    00724         //  (sometimes one just wants to know that the keyword is present).
    00725         //
    00726         //  Optional parameters allows the reading of specified primary HDU keys and specified keywords in
    00727         //  the HDU of interest.
    00728         void read (const std::vector<String>& searchKeys, const std::vector<String> &searchValues, bool readDataFlag = false, const std::vector<String>& hduKeys = std::vector<String>(), int version = 1);
    00729         ExtHDU& currentExtension ();
    00730         ExtHDU& extension (int i);
    00731         const ExtHDU& extension (int i) const;
    00732         ExtHDU& extension (const String& hduName, int version = 1);
    00733         const ExtHDU& extension (const String& hduName, int version = 1) const;
    00734         fitsfile* fitsPointer () const;
    00735         PHDU& pHDU ();
    00736         const PHDU& pHDU () const;
    00737         friend std::ostream& operator << (std::ostream& s, const FITS& right);
    00738         //  ! add a new Table extension to a FITS object
    00739         Table* addTable (const String& hduName, int rows,                   // ! Number of rows in new table. Mandatory
    00740           const std::vector<String>& columnName = std::vector<String>(),    // ! Optional set of column names for new table
    00741           const std::vector<String>& columnFmt = std::vector<String>(),     // ! Column formats for column units. Mandatory if columnName is specified
    00742           const std::vector<String>& columnUnit = std::vector<String>(),    // ! Column formats for column units. Optional
    00743           HduType type = BinaryTbl, int version = 1);
    00744         // ! add a new Group Table to the FITS object
    00745         Table * addGroupTable(const String & groupName, int groupID);
    00746         //GroupTable * addGroupTable(const String & groupName, int groupID);
    00747         //  ! add a new ImageExt (image extension) to the FITS object. A "writing" method.
    00748         ExtHDU* addImage (const String& hduName, int bpix, std::vector<long>& naxes, int version = 1);
    00749         // Force destruction of the FITS object. Essentially
    00750         // is a manual destructor call.
    00751         void destroy () throw ();
    00752         void flush ();
    00753         void resetPosition ();
    00754         const ExtMap& extension () const;
    00755         void deleteExtension (int doomed);
    00756         const String& currentExtensionName () const;
    00757         void currentExtensionName (const String& extName);
    00758         const String& name () const;
    00759         void copy (const HDU& source);
    00760         Table& filter (const String& expression, ExtHDU& inputTable, bool overwrite = true, bool readData = false);
    00761         void setCompressionType (int compType);
    00762         void setTileDimensions (const std::vector<long>& tileSizes);
    00763         void setNoiseBits (int noiseBits);
    00764         int getCompressionType () const;
    00765         void getTileDimensions (std::vector<long>& tileSizes) const;
    00766         int getNoiseBits () const;
    00767         static bool verboseMode ();
    00768         static void setVerboseMode (bool value);
    00769
    00770     public:
    00771       // Additional Public Declarations
    00772
    00773     protected:
    00774       // Additional Protected Declarations
    00775
    00776     private:
    00777         FITS(const FITS &right);
    00778         FITS & operator=(const FITS &right);
    00779
    00780         void unmapExtension (ExtHDU& doomed);
    00781         int nextVersionNumber (const String& inputName) const;
    00782         //  read the primary HDU. Read the image if
    00783         //  readDataFlag is true.
    00784         void read (bool readDataFlag = false, const std::vector<String>& keys = std::vector<String>());
    00785         //  Returns index of current HDU where primary = 0.  (Extended file syntax may cause a shift to an
    00786         //  extension.)
    00787         int open (RWmode rwmode = Read);
    00788         //  Create returns true if a new file was created or an
    00789         //  existing file overwritten, false if appending.
    00790         //
    00791         //  It throws exception CantCreate or CantOpen if either fails.
    00792         bool create ();
    00793         //  Close the fits file.
    00794         //
    00795         //  Called in destructors so must not throw.
    00796         int close () throw ();
    00797         std::ostream & put (std::ostream &s) const;
    00798         ExtHDU& extbyVersion (const String& hduName, int version) const;
    00799         void pHDU (PHDU* value);
    00800         void readExtensions (bool readDataFlag = false);
    00801         ExtHDU* addExtension (ExtHDU* ext);
    00802         String nameOfUnmapped (int hduNum) const;
    00803         void cloneHeader (const ExtHDU& source);
    00804
    00805         // Check if caller is requesting an already read ExtHDU (ie. one
    00806         // that's already been added to ExtMap).  If hduIdx=0, check by
    00807         // matching name and optional version.  Otherwise check by matching
    00808         // hduIdx.  If found, returns pointer to the ExtHDU.  Otherwise
    00809         // returns 0.  This will not throw.
    00810         ExtHDU* checkAlreadyRead(const int hduIdx,
    00811                     const String& hduName = string(""), const int version=1) const throw();
    00812
    00813       // Additional Private Declarations
    00814
    00815         void destroyPrimary ();
    00816         void destroyExtensions ();
    00817         int currentCompressionTileDim () const;
    00818         void currentCompressionTileDim (int value);
    00819
    00820
    00821     private: //## implementation
    00822       // Data Members for Class Attributes
    00823         static bool s_verboseMode;
    00824         int m_currentCompressionTileDim;
    00825
    00826       // Data Members for Associations
    00827         RWmode m_mode;
    00828         std::string m_currentExtensionName;
    00829         std::string m_filename;
    00830         PHDU* m_pHDU;
    00831         ExtMap m_extension;
    00832         fitsfile* m_fptr;
    00833
    00834
    00835       // ## Additional Implementation Declarations
    00836       friend void HDU::makeThisCurrent() const;
    00837       // MakeImage needs to access the m_pHDU pointer
    00838       friend PHDU * HDUCreator::MakeImage (int bpix, int naxis, const std::vector<long>& naxes);
    00839
    00840   };
    00841
    00842   // Class CCfits::FITS::NoSuchHDU
    00843
    00844   // Class CCfits::FITS::OperationNotSupported
    00845
    00846   // Class CCfits::FITS::CantOpen
    00847
    00848   // Class CCfits::FITS::CantCreate
    00849
    00850   // Class CCfits::FITS
    00851
    00852   inline ExtHDU& FITS::extension (const String& hduName, int version)
    00853   {
    00854     return extbyVersion(hduName,version);
    00855   }
    00856
    00857   inline std::ostream& operator << (std::ostream& s, const FITS& right)
    00858   {
    00859     return right.put(s);
    00860   }
    00861
    00862   inline bool FITS::verboseMode ()
    00863   {
    00864     return s_verboseMode;
    00865   }
    00866
    00867   inline void FITS::setVerboseMode (bool value)
    00868   {
    00869     s_verboseMode = value;
    00870   }
    00871
    00872   inline int FITS::currentCompressionTileDim () const
    00873   {
    00874     return m_currentCompressionTileDim;
    00875   }
    00876
    00877   inline void FITS::currentCompressionTileDim (int value)
    00878   {
    00879     m_currentCompressionTileDim = value;
    00880   }
    00881
    00882   inline const String& FITS::currentExtensionName () const
    00883   {
    00884     return m_currentExtensionName;
    00885   }
    00886
    00887   inline void FITS::currentExtensionName (const String& extName)
    00888   {
    00889     m_currentExtensionName = extName;
    00890   }
    00891
    00892   inline const String& FITS::name () const
    00893   {
    00894     return m_filename;
    00895   }
    00896
    00897   inline void FITS::pHDU (PHDU* value)
    00898   {
    00899     m_pHDU = value;
    00900   }
    00901
    00902   inline const PHDU& FITS::pHDU () const
    00903   {
    00904     return *m_pHDU;
    00905   }
    00906
    00907   inline PHDU& FITS::pHDU ()
    00908   {
    00909     return *m_pHDU;
    00910   }
    00911
    00912   inline const ExtMap& FITS::extension () const
    00913   {
    00914      return m_extension;
    00915   }
    00916
    00917   inline fitsfile* FITS::fitsPointer () const
    00918   {
    00919     return m_fptr;
    00920   }
    00921
    00922 } // namespace CCfits
    00923
    00924
    00925 #endif