[904] | 1 | // |
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| 2 | // C++ Interface: STPol |
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| 3 | // |
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| 4 | // Description: |
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| 5 | // |
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| 6 | // |
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| 7 | // Author: Malte Marquarding <Malte.Marquarding@csiro.au>, (C) 2006 |
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| 8 | // |
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| 9 | // Copyright: See COPYING file that comes with this distribution |
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| 10 | // |
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| 11 | // |
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| 12 | #ifndef ASAPSTPOL_H |
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| 13 | #define ASAPSTPOL_H |
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| 14 | |
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| 15 | #include <map> |
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| 16 | #include <utility> |
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| 17 | |
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| 18 | #include <casa/aips.h> |
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| 19 | #include <casa/Exceptions/Error.h> |
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| 20 | #include <casa/Arrays/Matrix.h> |
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| 21 | #include <casa/Arrays/Vector.h> |
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| 22 | #include "Factory.h" |
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| 23 | |
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| 24 | namespace asap { |
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| 25 | |
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| 26 | /** |
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| 27 | Convert betweeen the possible polarisations (linear, circular, stokes, stokes2) |
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| 28 | |
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| 29 | @author Malte Marquarding |
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| 30 | @date $Date:$ |
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| 31 | |
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| 32 | */ |
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| 33 | class STPol { |
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| 34 | public: |
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| 35 | |
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| 36 | typedef void (STPol::*polOperation)( casa::Float phase ); |
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[1757] | 37 | STPol(): totalangle_(0.0),feedhand_(1.0) {} |
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[904] | 38 | virtual ~STPol() {} |
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| 39 | |
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| 40 | typedef FactoryBase<STPol> STPolFactory; |
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| 41 | |
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| 42 | static STPol* getPolClass( std::map<std::string,STPol::STPolFactory *> factories, |
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| 43 | const std::string& type ) |
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| 44 | { return factories[type]->create(); } |
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| 45 | |
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| 46 | casa::Vector<casa::Float> getSpectrum( casa::uInt index, const std::string& mode ) |
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| 47 | { |
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| 48 | if (mode == "linear") |
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| 49 | return getLinear(index); |
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| 50 | else if ( mode == "stokes" ) |
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| 51 | return getStokes(index); |
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| 52 | else if ( mode == "linpol" ) |
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| 53 | return getLinPol(index); |
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[957] | 54 | else if ( mode == "circular" ) |
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| 55 | return getCircular(index); |
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[904] | 56 | else |
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| 57 | throw(casa::AipsError("Polarisation type unknown")); |
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| 58 | } |
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| 59 | |
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| 60 | virtual casa::Vector<casa::Float> getCircular( casa::uInt index ) = 0; |
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| 61 | |
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| 62 | virtual casa::Vector<casa::Float> getStokes( casa::uInt index ) = 0; |
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| 63 | |
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| 64 | virtual casa::Vector<casa::Float> getLinPol( casa::uInt index ) = 0; |
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| 65 | |
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| 66 | virtual casa::Vector<casa::Float> getLinear( casa::uInt index ) = 0; |
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| 67 | |
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| 68 | virtual void rotatePhase( casa::Float phase ) {} |
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| 69 | virtual void rotateLinPolPhase( casa::Float phase ) {} |
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| 70 | |
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| 71 | virtual void invertPhase( casa::Float phase ) {} |
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| 72 | |
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| 73 | casa::uInt nspec() const { return basespectra_.ncolumn(); } |
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| 74 | |
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| 75 | const casa::Vector<casa::Float> getSpectrum(casa::uInt index) const |
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| 76 | { return basespectra_.column(index); } |
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| 77 | |
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| 78 | casa::Matrix<casa::Float>& getSpectra() |
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| 79 | { return basespectra_; } |
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| 80 | |
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| 81 | void setSpectra(const casa::Matrix<casa::Float>& spec) |
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| 82 | { basespectra_.resize(); basespectra_ = spec; } |
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| 83 | |
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| 84 | |
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[1757] | 85 | void setPhaseCorrections(casa::Float totalang=0.0, casa::Float feedhand=1.0) |
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| 86 | { totalangle_=totalang;feedhand_=feedhand;} |
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[957] | 87 | |
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[1757] | 88 | casa::Float getTotalPhase() const { return totalangle_; } |
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[957] | 89 | casa::Float getFeedHand() const { return feedhand_; } |
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| 90 | |
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[904] | 91 | static std::pair<int, std::string> polFromString(const std::string& key); |
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| 92 | static std::string getPolLabel(int index, const std::string& type = "linear"); |
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| 93 | |
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| 94 | private: |
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| 95 | static void initPolMap(); |
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| 96 | static void initLabelMap(); |
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| 97 | static std::map<std::string, std::pair<int, std::string> > polmap_; |
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| 98 | static std::map<std::string, std::map<int, std::string> > labelmap_; |
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| 99 | |
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[1757] | 100 | casa::Float totalangle_,feedhand_; |
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[904] | 101 | std::string mode_; |
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| 102 | casa::Matrix<casa::Float> basespectra_; |
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| 103 | |
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| 104 | }; |
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| 105 | |
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| 106 | } |
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| 107 | |
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| 108 | #endif |
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