Histogram2dDD.h

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00001 //# Histogram2dDD.h: 2d histogram DisplayData
00002 //# Copyright (C) 2000,2001,2002
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 received 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 //# $Id$
00027 
00028 #ifndef TRIALDISPLAY_HISTOGRAM2DDD_H
00029 #define TRIALDISPLAY_HISTOGRAM2DDD_H
00030 
00031 #include <casa/aips.h>
00032 #include <lattices/Lattices/Lattice.h>
00033 #include <lattices/Lattices/MaskedLattice.h>
00034 #include <display/DisplayDatas/ActiveCaching2dDD.h>
00035 
00036 namespace casa { //# NAMESPACE CASA - BEGIN
00037 
00038         template <class T> class ImageInterface;
00039         template <class T> class LatticeStatistics;
00040         template <class T> class LatticeHistograms;
00041         class Histogram2dDM;
00042 
00043 // <summary>
00044 // A DisplayData to draw histograms
00045 // </summary>
00046 //
00047 // <use visibility=export>
00048 //
00049 // <reviewed reviewer="" date="yyyy/mm/dd" tests="" demos="">
00050 // </reviewed>
00051 //
00052 // <prerequisite>
00053 //   <li> DisplayData
00054 //   <li> CachingDisplayData
00055 //   <li> ActiveCaching2dDD
00056 // </prerequisite>
00057 //
00058 // <etymology>
00059 // </etymology>
00060 // <synopsis>
00061 //
00062 // </synopsis>
00063 
00064         class Histogram2dDD : public ActiveCaching2dDD {
00065 
00066         public:
00067 
00068                 // Constructor taking a pointer to an already constructed
00069                 // ImageInterface.
00070                 Histogram2dDD(const ImageInterface<Float> *image);
00071 
00072                 // Constructor taking a pointer to an already constructed Table,
00073                 // and a String indicating a column name.
00074                 //Histogram2dDD(const Table *table, const String column);
00075 
00076                 // Constructor taking a pointer to an Array.
00077                 //Histogram2dDD(const Array<Float> *array);
00078 
00079                 // Destructor.
00080                 virtual ~Histogram2dDD();
00081 
00082                 // Return the data unit.
00083                 virtual const Unit dataUnit();
00084 
00085                 // Format the histogram value at the given world position.
00086                 virtual String showValue(const Vector<Double> &world);
00087 
00088                 // Install the default options for this DisplayData.
00089                 virtual void setDefaultOptions();
00090 
00091                 // Apply options stored in <src>rec</src> to the DisplayData.  A
00092                 // return value of <src>True</src> means a refresh is needed.
00093                 // <src>recOut</src> contains any fields which were implicitly
00094                 // changed as a result of the call to this function.
00095                 virtual Bool setOptions(Record &rec, Record &recOut);
00096 
00097                 // Retrieve the current and default options and parameter types.
00098                 virtual Record getOptions( bool scrub=false ) const;
00099 
00100                 // Return the type of this DisplayData.
00101                 virtual Display::DisplayDataType classType() {
00102                         return Display::CanvasAnnotation;
00103                 }
00104 
00105                 // Create a new AxesDisplayMethod for drawing on the given
00106                 // WorldCanvas when the AttributeBuffers are suitably matched to the
00107                 // current state of this DisplayData and of the WorldCanvas/Holder.
00108                 // The tag is a unique number used to identify the age of the newly
00109                 // constructed CachingDisplayMethod.
00110                 virtual CachingDisplayMethod *newDisplayMethod(WorldCanvas *worldCanvas,
00111                         AttributeBuffer *wchAttributes,
00112                         AttributeBuffer *ddAttributes,
00113                         CachingDisplayData *dd);
00114 
00115                 // Return the current options of this DisplayData as an
00116                 // AttributeBuffer.
00117                 virtual AttributeBuffer optionsAsAttributes();
00118 
00119                 // Provide read-only access to the Lattice.
00120                 const Lattice<Float> &lattice() const {
00121                         return *itsMaskedLattice;
00122                 }
00123 
00124                 // Provide read-only access to the MaskedLattce.
00125                 const MaskedLattice<Float> &maskedLattice() const {
00126                         return *itsMaskedLattice;
00127                 }
00128 
00129         protected:
00130 
00131                 // (Required) default constructor.
00132                 Histogram2dDD();
00133 
00134                 // (Required) copy constructor.
00135                 Histogram2dDD(const Histogram2dDD &other);
00136 
00137                 // (Required) copy assignment.
00138                 void operator=(const Histogram2dDD &other);
00139 
00140         private:
00141 
00142                 friend class Histogram2dDM;
00143 
00144                 // The base image cloned at construction.
00145                 ImageInterface<Float> *itsBaseImage;
00146 
00147                 // The masked lattice, effectively referencing one of itsBaseImage,
00148                 // ...
00149                 MaskedLattice<Float> *itsMaskedLattice;
00150 
00151                 // Object to use for calculating statistics.
00152                 LatticeStatistics<Float> *itsLatticeStatistics;
00153 
00154                 // Object ot use for calculating histograms.
00155                 LatticeHistograms<Float> *itsLatticeHistograms;
00156 
00157         };
00158 
00159 
00160 } //# NAMESPACE CASA - END
00161 
00162 #endif
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