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00001 //# CLIPNearest2D.h: Nearest neighbour interpolator for CurvedLattice2D 00002 //# Copyright (C) 2003 00003 //# Associated Universities, Inc. Washington DC, USA. 00004 //# 00005 //# This library is free software; you can redistribute it and/or modify it 00006 //# under the terms of the GNU Library General Public License as published by 00007 //# the Free Software Foundation; either version 2 of the License, or (at your 00008 //# option) any later version. 00009 //# 00010 //# This library is distributed in the hope that it will be useful, but WITHOUT 00011 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00012 //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 00013 //# License for more details. 00014 //# 00015 //# You should have receied a copy of the GNU Library General Public License 00016 //# along with this library; if not, write to the Free Software Foundation, 00017 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. 00018 //# 00019 //# Correspondence concerning AIPS++ should be addressed as follows: 00020 //# Internet email: aips2-request@nrao.edu. 00021 //# Postal address: AIPS++ Project Office 00022 //# National Radio Astronomy Observatory 00023 //# 520 Edgemont Road 00024 //# Charlottesville, VA 22903-2475 USA 00025 //# 00026 //# $Id: CLIPNearest2D.h 20229 2008-01-29 15:19:06Z gervandiepen $ 00027 00028 #ifndef LATTICES_CLIPNEAREST2D_H 00029 #define LATTICES_CLIPNEAREST2D_H 00030 00031 00032 //# Includes 00033 #include <lattices/Lattices/CLInterpolator2D.h> 00034 #include <casa/Arrays/AxesMapping.h> 00035 00036 namespace casa { //# NAMESPACE CASA - BEGIN 00037 00038 //# Forward Declarations 00039 template<class T> class Lattice; 00040 00041 00042 // <summary> 00043 // Arbitrarily shaped 1-dim lattice crosscut 00044 // </summary> 00045 00046 // <use visibility=export> 00047 00048 // <reviewed reviewer="" date="" tests="tPixelCurve.cc"> 00049 // </reviewed> 00050 00051 // <prerequisite> 00052 //# Classes you should understand before using this one. 00053 // <li> <linkto class=CLInterpolator2D>CLInterpolator2D</linkto> 00054 // </prerequisite> 00055 00056 // <etymology> 00057 // CLIP means CLInterpolator (its base class). 00058 // The 2D means that interpolation in 2 dimensions needs to be done. 00059 // </etymology> 00060 00061 // <synopsis> 00062 // CLIPNearest2D is a realisation of the abstract base class CLInterpolator2D. 00063 // This class interpolates in a very simple way by taking the nearest 00064 // neighbour. 00065 // 00066 // Note that the base class contains the lattice to be interpolated and 00067 // the axis to be used in the interpolation. 00068 // </synopsis> 00069 00070 00071 template<class T> 00072 class CLIPNearest2D: public CLInterpolator2D<T> 00073 { 00074 public: 00075 // Only default constructor is needed. 00076 // The set function in the base class defines the lattice and axes. 00077 CLIPNearest2D(); 00078 00079 // Make a copy of the object. 00080 virtual CLIPNearest2D<T>* clone() const; 00081 00082 // Get the data for the given pixel points (on axis1 and axis2) and 00083 // the chunk in the other axes as given by the section. 00084 virtual void getData (Array<T>& buffer, 00085 const Vector<Float>& x, 00086 const Vector<Float>& y, 00087 const Slicer& section); 00088 00089 // Get the mask for the given pixel points (on axis1 and axis2) and 00090 // the chunk in the other axes as given by the section. 00091 virtual void getMask (Array<Bool>& buffer, 00092 const Vector<Float>& x, 00093 const Vector<Float>& y, 00094 const Slicer& section); 00095 00096 //# Make members of parent class known. 00097 protected: 00098 using CLInterpolator2D<T>::itsAxesMap; 00099 using CLInterpolator2D<T>::itsAxis1; 00100 using CLInterpolator2D<T>::itsAxis2; 00101 using CLInterpolator2D<T>::itsCurveAxis; 00102 using CLInterpolator2D<T>::itsIsRef; 00103 using CLInterpolator2D<T>::itsLatticePtr; 00104 }; 00105 00106 00107 00108 } //# NAMESPACE CASA - END 00109 00110 #ifndef CASACORE_NO_AUTO_TEMPLATES 00111 #include <lattices/Lattices/CLIPNearest2D.tcc> 00112 #endif //# CASACORE_NO_AUTO_TEMPLATES 00113 #endif