source: trunk/src/SDMath.h@ 266

Last change on this file since 266 was 262, checked in by kil064, 20 years ago

add functiom VelocityAlignment
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  • Property svn:keywords set to Author Date Id Revision
File size: 7.5 KB
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1//#---------------------------------------------------------------------------
2//# SDMath.h: A collection of single dish mathematical operations
3//#---------------------------------------------------------------------------
4//# Copyright (C) 2004
5//# ATNF
6//#
7//# This program is free software; you can redistribute it and/or modify it
8//# under the terms of the GNU General Public License as published by the Free
9//# Software Foundation; either version 2 of the License, or (at your option)
10//# any later version.
11//#
12//# This program is distributed in the hope that it will be useful, but
13//# WITHOUT ANY WARRANTY; without even the implied warranty of
14//# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15//# Public License for more details.
16//#
17//# You should have received a copy of the GNU General Public License along
18//# with this program; if not, write to the Free Software Foundation, Inc.,
19//# 675 Massachusetts Ave, Cambridge, MA 02139, USA.
20//#
21//# Correspondence concerning this software should be addressed as follows:
22//# Internet email: Malte.Marquarding@csiro.au
23//# Postal address: Malte Marquarding,
24//# Australia Telescope National Facility,
25//# P.O. Box 76,
26//# Epping, NSW, 2121,
27//# AUSTRALIA
28//#
29//# $Id:
30//#---------------------------------------------------------------------------
31#ifndef SDMATH_H
32#define SDMATH_H
33
34#include <string>
35#include <vector>
36#include <casa/aips.h>
37#include <casa/Utilities/CountedPtr.h>
38#include "SDDefs.h"
39
40class casa::Table;
41
42namespace asap {
43
44class SDMemTable;
45
46class SDMath {
47
48 public:
49
50// Default constructor
51 SDMath();
52
53// Copy Constructor (copy semantics)
54 SDMath (const SDMath& other);
55
56// Assignment (copy semantics)
57 SDMath &operator=(const SDMath& other);
58
59// Destructor
60 ~SDMath();
61
62// Binary Table operators. op=ADD, SUB, MUL, DIV, QUOTIENT
63 casa::CountedPtr<SDMemTable> binaryOperate (const casa::CountedPtr<SDMemTable>& left,
64 const casa::CountedPtr<SDMemTable>& right,
65 const casa::String& op, casa::Bool preserve) const;
66
67// Average in time
68 casa::CountedPtr<SDMemTable> average(const casa::Block<casa::CountedPtr<SDMemTable> >& in,
69 const casa::Vector<casa::Bool>& mask,
70 casa::Bool scanAverage,
71 const casa::String& weightStr,
72 casa::Bool alignVelocity=casa::False) const;
73
74// Statistics. If row<0, all rows are done otherwise, just the
75// specified row.
76 std::vector<float> statistic(const casa::CountedPtr<SDMemTable>& in,
77 const casa::Vector<casa::Bool>& mask,
78 const casa::String& which, casa::Int row) const;
79
80// Bin up spectra
81 SDMemTable* bin(const SDMemTable& in, casa::Int width) const;
82
83// Smooth
84 SDMemTable* smooth (const SDMemTable& in, const casa::String& kernel,
85 casa::Float width, casa::Bool doAll) const;
86
87// Flux conversion between Jansky and Kelvin
88 SDMemTable* convertFlux (const SDMemTable& in, casa::Float area,
89 casa::Float eta, casa::Bool doAll) const;
90
91// Gain-elevation correction
92 SDMemTable* gainElevation (const SDMemTable& in, const casa::Vector<casa::Float>& coeffs,
93 const casa::String& fileName,
94 const casa::String& method, casa::Bool doAll) const;
95
96// Velocity Alignment
97 SDMemTable* velocityAlignment (const SDMemTable& in) const;
98
99// Opacity correction
100 SDMemTable* opacity (const SDMemTable& in, casa::Float tau, casa::Bool doAll) const;
101
102// Simple unary mathematical operations. what=0 (mul) or 1 (add)
103 SDMemTable* unaryOperate(const SDMemTable& in, casa::Float offset,
104 casa::Bool doAll, casa::uInt what) const;
105
106// Average polarizations
107 SDMemTable* averagePol(const SDMemTable& in, const casa::Vector<casa::Bool>& mask) const;
108
109 private:
110
111// Weighting type for time averaging
112
113 enum WeightType {NONE,VAR,TSYS};
114
115// Function to use accumulate data during time averaging
116
117 void accumulate (casa::Double& timeSum, casa::Double& intSum, casa::Int& nAccum,
118 casa::MaskedArray<casa::Float>& sum, casa::Array<casa::Float>& sumSq,
119 casa::Array<casa::Float>& nPts, casa::Array<casa::Float>& tSysSum,
120 const casa::Array<casa::Float>& tSys, const casa::Array<casa::Float>& nInc,
121 const casa::Vector<casa::Bool>& mask, casa::Double time, casa::Double interval,
122 const casa::Block<casa::CountedPtr<SDMemTable> >& in,
123 casa::uInt iTab, casa::uInt iRow, casa::uInt axis, casa::uInt nAxesSub,
124 casa::Bool useMask, WeightType wtType) const;
125
126// Function to fill Scan Container when averaging in time
127
128 void fillSDC (SDContainer& sc, const casa::Array<casa::Bool>& mask,
129 const casa::Array<casa::Float>& data,
130 const casa::Array<casa::Float>& tSys,
131 casa::Int scanID, casa::Double timeStamp,
132 casa::Double interval, const casa::String& sourceName,
133 const casa::Vector<casa::uInt>& freqID) const;
134
135// Put the data and mask into the SDContainer
136 void putDataInSDC (SDContainer& sc, const casa::Array<casa::Float>& data,
137 const casa::Array<casa::Bool>& mask) const;
138
139// Function to normalize data when averaging in time
140
141 void normalize (casa::MaskedArray<casa::Float>& data,
142 const casa::Array<casa::Float>& sumSq,
143 const casa::Array<casa::Float>& nPts,
144 WeightType wtType, casa::Int axis, casa::Int nAxes) const;
145
146// Function to get the current cursor location
147 void getCursorLocation (casa::IPosition& start, casa::IPosition& end,
148 const SDMemTable& in) const;
149
150// Convert weight string to enum value
151
152 void convertWeightString (WeightType& wt, const casa::String& weightStr) const;
153
154// Convert interpolation type string
155 void convertInterpString(casa::Int& type, const casa::String& interp) const;
156
157// Correct data from an ascii Table
158 void correctFromAsciiTable(SDMemTable* pTabOut, const SDMemTable& in,
159 const casa::String& fileName,
160 const casa::String& col0, const casa::String& col1,
161 const casa::String& methodStr, casa::Bool doAll,
162 const casa::Vector<casa::Float>& xOut) const;
163
164// Correct data from a Table
165 void correctFromTable(SDMemTable* pTabOut, const SDMemTable& in, const casa::Table& tTable,
166 const casa::String& col0, const casa::String& col1,
167 const casa::String& methodStr, casa::Bool doAll,
168 const casa::Vector<casa::Float>& xOut) const;
169
170// Correct data from a Vector
171 void correctFromVector (SDMemTable* pTabOut, const SDMemTable& in,
172 casa::Bool doAll, const casa::Vector<casa::Float>& factor) const;
173
174// Read ascii file into a Table
175
176 casa::Table readAsciiFile (const casa::String& fileName) const;
177
178// Generate source table
179 void generateSourceTable (casa::Vector<casa::String>& srcTab,
180 casa::Vector<casa::uInt>& srcIdx,
181 casa::Vector<casa::uInt>& firstRow,
182 const casa::Vector<casa::String>& srcNames) const;
183
184};
185
186} // namespace
187
188#endif
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