/usr/include/casacore/lattices/LEL/LELAttribute.h is in casacore-dev 2.2.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | //# LELAttribute.h: Ancillary information for the LEL letter classes
//# Copyright (C) 1997,1998,1999,2000,2001,2003
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef LATTICES_LELATTRIBUTE_H
#define LATTICES_LELATTRIBUTE_H
//# Includes
#include <casacore/casa/aips.h>
#include <casacore/casa/Arrays/IPosition.h>
#include <casacore/lattices/LEL/LELCoordinates.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
// <summary>
// Ancillary information for the LEL letter classes.
// </summary>
//
// <use visibility=local>
//
// <reviewed reviewer="" date="yyyy/mm/dd" tests="" demos="">
// </reviewed>
//
// <prerequisite>
// <li> <linkto class="Lattice"> Lattice</linkto>
// <li> <linkto class="LatticeExpr"> LatticeExpr</linkto>
// <li> <linkto class="LatticeExprNode"> LatticeExprNode</linkto>
// <li> <linkto class="LELInterface"> LELInterface</linkto> and
// derived classes
// </prerequisite>
//
// <etymology>
// Holds attribute information for the Lattice Expression
// Language letter classes.
// </etymology>
// <synopsis>
// The Lattice Expression Language letter classes provide
// expression objects. There is ancilliary information or
// attributes associated with these objects:
// <ul>
// <li> Scalar or lattice (i.e. array) or region.
// <li> In case of an array, is it a reduced array. I.e. is it an array
// that has to be calculated beforehand (e.g. partialMax).
// A scalar is always reduced.
// <li> Shape and tile shape of a lattice. This can be undefined.
// <li> Is the lattice masked?
// <li> Optionally coordinates of the lattice.
// </ul>
// Two attribute objects can be combined mirroring the combination of two
// expressions (like the addition of two lattices).
// Regions cannot be combined.
// </synopsis>
class LELAttribute
{
public:
// Default constructor sets it as a scalar.
LELAttribute();
// Constructor sets it as lattice with given attributes.
// An empty shape indicates that the shape is not known.
LELAttribute(Bool isMasked,
const IPosition& shape,
const IPosition& tileShape,
const LELCoordinates& coordinates,
Bool isReduced = False);
// Constructor sets it as a region with given attributes.
explicit LELAttribute(uInt regionNdim);
// Copy constructor (copy semantics)
LELAttribute(const LELAttribute& attr);
// Constructor that combines the two attributes given.
// An array can be combined with a scalar.
// If matchAxes is True and if two arrays are given, the shapes and
// coordinates have to match exactly, otherwise one can be a subset of
// the other (and LEL will auto-extend).
LELAttribute(const LELAttribute& attrLeft,
const LELAttribute& attrRight,
Bool matchAxes = True);
// Destructor
~LELAttribute();
// Assignment (copy semantics)
LELAttribute& operator= (const LELAttribute& other);
// Is expression a scalar?
Bool isScalar() const { return isScalar_p; }
// Is expression a reduced array? A scalar is always reduced.
Bool isReduced() const { return isReduced_p; }
// Is expression a region?
Bool isRegion() const { return isRegion_p; }
// Is the expression result masked?
Bool isMasked() const { return isMasked_p; }
// What is the shape of the expression?
const IPosition& shape() const { return shape_p; }
// What is the tile shape of the expression?
const IPosition& tileShape() const { return tileShape_p; }
// What are the coordinates of the expression?
const LELCoordinates& coordinates() const { return coords_p; }
// Compare the coordinates and shapes to see if this is a subset of other.
Int compareCoord (const LELAttribute& other) const;
private:
Bool isScalar_p;
Bool isReduced_p;
Bool isRegion_p;
Bool isMasked_p;
IPosition shape_p;
IPosition tileShape_p;
LELCoordinates coords_p;
};
} //# NAMESPACE CASACORE - END
#endif
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