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NNGridder.h
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1//# NNGridder.h: Definition for Nearest Neighbour Gridder
2//# Copyright (C) 1996,1997,1999
3//# Associated Universities, Inc. Washington DC, USA.
4//#
5//# This library is free software; you can redistribute it and/or modify it
6//# under the terms of the GNU Library General Public License as published by
7//# the Free Software Foundation; either version 2 of the License, or (at your
8//# option) any later version.
9//#
10//# This library is distributed in the hope that it will be useful, but WITHOUT
11//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
13//# License for more details.
14//#
15//# You should have received a copy of the GNU Library General Public License
16//# along with this library; if not, write to the Free Software Foundation,
17//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
18//#
19//# Correspondence concerning AIPS++ should be addressed as follows:
20//# Internet email: casa-feedback@nrao.edu.
21//# Postal address: AIPS++ Project Office
22//# National Radio Astronomy Observatory
23//# 520 Edgemont Road
24//# Charlottesville, VA 22903-2475 USA
25
26#ifndef SCIMATH_NNGRIDDER_H
27#define SCIMATH_NNGRIDDER_H
28
29#include <casacore/casa/aips.h>
30#include <casacore/scimath/Mathematics/Gridder.h>
31
32namespace casacore { //# NAMESPACE CASACORE - BEGIN
33
34// <summary>
35// A non-negative gridding class
36// </summary>
37
38template <class Domain, class Range>
39class NNGridder : public Gridder<Domain, Range>
40{
41public:
43 const Vector<Domain>& offset);
44
45 virtual ~NNGridder() {}
46
47 virtual Bool grid(Array<Range>& gridded,
49 const Range& value);
50
51 virtual Bool degrid(const Array<Range>& gridded,
53 Range& value);
54
55protected:
56 virtual Range correctionFactor1D(Int loc, Int len);
57
59
60protected:
61 //# Make members of parent classes known.
62 using Gridder<Domain,Range>::ndim;
63 using Gridder<Domain,Range>::offsetVec;
64 using Gridder<Domain,Range>::fillCorrectionVectors;
65 using Gridder<Domain,Range>::onGrid;
66};
67
68} //# NAMESPACE CASACORE - END
69
70#ifndef CASACORE_NO_AUTO_TEMPLATES
71#include <casacore/scimath/Mathematics/NNGridder.tcc>
72#endif //# CASACORE_NO_AUTO_TEMPLATES
73#endif
Vector< Domain > scale
Definition Gridder.h:91
virtual Bool onGrid(const Vector< Int > &loc)
virtual void fillCorrectionVectors()
IPosition shape
Definition Gridder.h:89
Vector< Domain > offset
Definition Gridder.h:92
Vector< Domain > & position(Vector< Domain > &gpos, const Vector< Domain > &pos)
Vector< Int > offsetVec
Definition Gridder.h:99
virtual ~NNGridder()
Definition NNGridder.h:45
NNGridder(const IPosition &shape, const Vector< Domain > &scale, const Vector< Domain > &offset)
virtual Bool degrid(const Array< Range > &gridded, const Vector< Domain > &position, Range &value)
Vector< Int > loc
Definition NNGridder.h:58
virtual Bool grid(Array< Range > &gridded, const Vector< Domain > &position, const Range &value)
virtual Range correctionFactor1D(Int loc, Int len)
Correction factor for 1 dimension.
this file contains all the compiler specific defines
Definition mainpage.dox:28
int Int
Definition aipstype.h:48
bool Bool
Define the standard types used by Casacore.
Definition aipstype.h:40
LatticeExprNode value(const LatticeExprNode &expr)
This function returns the value of the expression without a mask.