[518] | 1 | // This may look like C code, but it is really -*- C++ -*-
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[228] | 2 | #ifndef LOCALMAP_SEEN
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| 3 | #define LOCALMAP_SEEN
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| 4 |
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| 5 | #include "pixelmap.h"
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| 6 | #include "sphericalmap.h"
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[470] | 7 | #include "ndatablock.h"
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[228] | 8 |
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[470] | 9 | #include "anydataobj.h"
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| 10 | #include "ppersist.h"
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| 11 |
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[228] | 12 | // A local map of a region of the sky, in cartesian coordinates.
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| 13 | // It has an origin in (theta0, phi0), mapped to pixel(x0, y0)
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| 14 | // (x0, y0 might be outside of this local map)
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| 15 | // default value of (x0, y0) is middle of the map, center of pixel(nx/2, ny/2)
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| 16 | //
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| 17 | // la carte est consideree comme un tableau a deux indices i et j, i etant
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| 18 | // indice de colonne et j indice de ligne. La carte est supposee resider
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| 19 | // dans un plan tangent, dont le point de tangence est repere (x0,y0) dans
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[470] | 20 | // la carte et (theta0, phi0) sur la sphere celeste. L extension de la
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[228] | 21 | // carte est definie par les valeurs de deux angles couverts respectivement
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| 22 | // par la totalite des pixels en x de la carte et la totalite des pixels
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| 23 | // en y. (SetSize()).
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| 24 | // On considere un "plan de reference" : plan tangent a la sphere celeste
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[470] | 25 | // aux angles theta=Pi/2 et phi=0. Dans ce plan L origine des coordonnees
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| 26 | // est le point de tangence. L axe Ox est la tangente parallele a
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| 27 | // lequateur, dirige vers les phi croissants, l axe Oy est parallele
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[228] | 28 | // au meridien, dirige vers le pole nord.
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| 29 | // De maniere interne a la classe une carte est definie dans ce plan de
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[470] | 30 | // reference et transportee jusqu au point (theta0, phi0) de sorte que les // axes restent paralleles aux meridiens et paralleles. L utilisateur peut
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[228] | 31 | // definir sa carte selon un repere en rotation par rapport au repere de
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[470] | 32 | // reference (par l angle entre le parallele et l axe Ox souhaite --
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[228] | 33 | // methode SetOrigin(...))
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| 34 |
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| 35 |
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[470] | 36 | // ***************** Class LocalMap *****************************
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[228] | 37 |
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[470] | 38 | template<class T>
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| 39 | class LocalMap : public PixelMap<T>, public AnyDataObj
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| 40 | {
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[228] | 41 |
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[470] | 42 | public:
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[228] | 43 |
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[470] | 44 | LocalMap();
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[473] | 45 | LocalMap(int nx, int ny);
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[470] | 46 | LocalMap(const LocalMap<T>& lm);
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| 47 | virtual ~LocalMap();
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[228] | 48 |
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[470] | 49 | // ---------- Overloading of () to access pixel number k ----
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[228] | 50 |
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[473] | 51 | inline T& operator()(int k) {return(PixVal(k));}
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| 52 | inline T const& operator()(int k) const {return(PixVal(k));}
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[470] | 53 | inline T& operator()(int ix, int iy) {return PixVal(iy*nSzX_+ix);};
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| 54 | inline T const& operator()(int ix, int iy) const {return PixVal(iy*nSzX_+ix);};
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[228] | 55 |
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[470] | 56 | // ---------- Definition of PixelMap abstract methods -------
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| 57 |
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| 58 | /* return/set the number of pixels */
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[473] | 59 | virtual int NbPixels() const;
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| 60 | inline void setNbPixels(int n) {nPix_= n;}
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[470] | 61 |
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| 62 | /* return the value of pixel number k */
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[473] | 63 | virtual T& PixVal(int k);
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| 64 | virtual T const& PixVal(int k) const;
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[470] | 65 |
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[518] | 66 | /* Return true if teta,phi in map */
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| 67 | virtual bool ContainsSph(double theta, double phi) const;
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[470] | 68 | /* return the index of pixel at (theta,phi) */
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[473] | 69 | virtual int PixIndexSph(double theta,double phi) const;
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[228] | 70 |
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[470] | 71 | /* return the spherical coordinates of center of pixel number k */
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[473] | 72 | virtual void PixThetaPhi(int k,double& theta,double& phi) const;
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[228] | 73 |
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[470] | 74 | /* return the Pixel Solid angle (steradians) */
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[473] | 75 | virtual double PixSolAngle(int k) const;
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[228] | 76 |
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[470] | 77 | // ---------- Specific methods ------------------------------
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[228] | 78 |
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[473] | 79 | void ReSize(int nx, int ny);
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[228] | 80 |
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[470] | 81 | inline virtual char* TypeOfMap() const {return "LOCAL";};
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| 82 |
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| 83 | /* Origin (with angle between x axis and phi axis, in degrees) x0,y0 the default: middle of map*/
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[473] | 84 | virtual void SetOrigin(double theta=90.,double phi=0.,double angle=0.);
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| 85 | virtual void SetOrigin(double theta,double phi,int x0,int y0,double angle=0.);
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[228] | 86 |
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[470] | 87 | /* Pixel size (degres) */
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[473] | 88 | virtual void SetSize(double angleX,double angleY);
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[228] | 89 |
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[470] | 90 | /* Check to see if the local mapping is done */
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| 91 | inline bool LocalMap_isDone() const {return(originFlag_ && extensFlag_);};
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[228] | 92 |
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[470] | 93 | /* Projection to/from spherical map */
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| 94 | virtual void Project(SphericalMap<T>& sphere) const;
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[228] | 95 |
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[470] | 96 | /* There should be a more complex algorithm somewhere to combine *several* local maps to a full sphere.
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| 97 | -> static method, or separate class */
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| 98 |
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| 99 | /* provides a integer characterizing the pixelization refinement (here : number of pixels) */
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[473] | 100 | inline virtual int SizeIndex() const {return(nPix_);}
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| 101 | inline int Size_x() const {return nSzX_;}
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| 102 | inline void setSize_x(int n) {nSzX_= n;}
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| 103 | inline int Size_y() const {return nSzY_;}
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| 104 | inline void setSize_y(int n) {nSzY_= n;}
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[228] | 105 |
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[473] | 106 | inline void Origin(double& theta,double& phi,int& x0,int& y0,double& angle) const {theta= theta0_; phi= phi0_; x0= x0_; y0= y0_;angle= angle_;}
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[228] | 107 |
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[473] | 108 | inline void Aperture(double& anglex,double& angley) const {anglex= angleX_; angley= angleY_;}
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[470] | 109 |
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| 110 | /* retourne le pointeur vers/remplit le vecteur des contenus des pixels */
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| 111 | inline const NDataBlock<T>* getDataBlock() const {return (&pixels_);}
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[473] | 112 | inline void setDataBlock(T* data, int n) {pixels_.FillFrom(n,data);}
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[470] | 113 |
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| 114 | /* impression */
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| 115 | void print(ostream& os) const;
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| 116 |
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| 117 | // ---------- Méthodes internes -----------------------------
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[228] | 118 |
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| 119 | private :
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| 120 |
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[470] | 121 | void InitNul();
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[473] | 122 | void Getij(int k,int& i,int& j) const;
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| 123 | void ReferenceToUser(double& theta,double& phi) const;
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| 124 | void UserToReference(double& theta,double& phi) const;
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| 125 | void PixProjToAngle(double x,double y,double& theta,double& phi) const;
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| 126 | void AngleProjToPix(double theta,double phi,double& x,double& y) const;
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[228] | 127 |
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[470] | 128 | // ---------- Variables internes ----------------------------
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| 129 |
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[473] | 130 | int nSzX_;
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| 131 | int nSzY_;
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| 132 | int nPix_;
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[470] | 133 | bool originFlag_;
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| 134 | bool extensFlag_;
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[473] | 135 | int x0_;
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| 136 | int y0_;
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| 137 | double theta0_;
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| 138 | double phi0_;
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| 139 | double angle_;
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| 140 | double cos_angle_;
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| 141 | double sin_angle_;
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| 142 | double angleX_;
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| 143 | double angleY_;
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| 144 | double tgAngleX_;
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| 145 | double tgAngleY_;
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[470] | 146 | NDataBlock<T> pixels_;
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[228] | 147 | };
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| 148 |
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[470] | 149 | // ------------- Classe pour la gestion de persistance --
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| 150 | template <class T>
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| 151 | class FIO_LocalMap : public PPersist
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| 152 | {
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| 153 |
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| 154 | public:
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| 155 |
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| 156 | FIO_LocalMap();
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| 157 | FIO_LocalMap(string const & filename);
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| 158 | FIO_LocalMap(const LocalMap<T>& obj);
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| 159 | FIO_LocalMap(LocalMap<T>* obj);
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| 160 | virtual ~FIO_LocalMap();
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| 161 | virtual AnyDataObj* DataObj();
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| 162 | inline operator LocalMap<T>() { return(*dobj); }
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| 163 | inline LocalMap<T> getObj() { return(*dobj); }
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| 164 |
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| 165 | protected :
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| 166 |
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| 167 | virtual void ReadSelf(PInPersist&);
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| 168 | virtual void WriteSelf(POutPersist&) const;
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| 169 | LocalMap<T>* dobj;
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| 170 | bool ownobj;
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| 171 | };
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| 172 |
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[228] | 173 | #endif
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