casacore
ExprConeNode.h
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1//# ExprConeNode.h: Class representing a cone search in table select expression
2//# Copyright (C) 2005
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: aips2-request@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//# $Id: ExprConeNode.h 21262 2012-09-07 12:38:36Z gervandiepen $
27
28#ifndef TABLES_EXPRCONENODE_H
29#define TABLES_EXPRCONENODE_H
30
31//# Includes
32#include <casacore/casa/aips.h>
33#include <casacore/tables/TaQL/ExprFuncNode.h>
34#include <casacore/tables/TaQL/ExprFuncNodeArray.h>
35
36namespace casacore { //# NAMESPACE CASACORE - BEGIN
37
38
39// <summary>
40// Class representing a cone search in table select expression
41// </summary>
42
43// <use visibility=local>
44
45// <reviewed reviewer="UNKNOWN" date="before2004/08/25" tests="">
46// </reviewed>
47// <prerequisite>
48//# Classes you should understand before using this one.
49// <li> <linkto class=TableExprFuncNode>TableExprFuncNode</linkto>
50// </prerequisite>
51
52// <synopsis>
53// The class represents a cone search.
54// It is a specialization of the TableExprFuncNode class.
55// Currently the implementation is straightforward, but in the future
56// it can do smarter things.
57// For instance:
58// <ul>
59// <li> If the cone positions and radii are constant, one can use
60// an integer zone number (e.g. floor(dec)) to avoid the much
61// more expensive sine/cosine calculations. Each cone will get a
62// minzone and maxzone value (derived from cone position and radius).
63// <li> Multiple cones can be ordered on minzone and maxzone.
64// </ul>
65// </synopsis>
66
67
69{
70public:
71 // Constructor
73 const TableExprNodeSet& source,
74 const vector<TENShPtr>& nodes,
75 const Block<Int>& dtypeOper,
76 uInt origin);
77
78 // Destructor
80
81 // 'get' Functions to get the desired result of a function.
82 // <group>
85 // </group>
86
87 // Check the data and value types of the operands.
88 // It sets the exptected data and value types of the operands.
89 // Set the value type of the function result and returns
90 // the data type of the function result.
92 ValueType& resVT,
93 Block<Int>& vtypeOper,
95 const std::vector<TENShPtr>&);
96
97private:
98 // Find the number of elements in an argument.
99 // It returns -1 if unknown.
100 static Int findNelem (const TENShPtr& node);
101
102
104};
105
106
107
108
110{
111public:
112 // Constructor
114 const TableExprNodeSet& source,
115 const vector<TENShPtr>& nodes,
116 const Block<Int>& dtypeOper,
117 uInt origin);
118
119 // Destructor
121
122 // 'get' Functions to get the desired result of a function.
123 // <group>
126 // </group>
127
128private:
130};
131
132
133} //# NAMESPACE CASACORE - END
134
135#endif
MArray< Int64 > getArrayInt(const TableExprId &id)
TableExprConeNodeArray(TableExprFuncNode::FunctionType, NodeDataType, const TableExprNodeSet &source, const vector< TENShPtr > &nodes, const Block< Int > &dtypeOper, uInt origin)
Constructor.
MArray< Bool > getArrayBool(const TableExprId &id)
'get' Functions to get the desired result of a function.
TableExprConeNode(FunctionType, NodeDataType, const TableExprNodeSet &source, const vector< TENShPtr > &nodes, const Block< Int > &dtypeOper, uInt origin)
Constructor.
static NodeDataType checkOperands(Block< Int > &dtypeOper, ValueType &resVT, Block< Int > &vtypeOper, FunctionType, const std::vector< TENShPtr > &)
Check the data and value types of the operands.
static Int findNelem(const TENShPtr &node)
Find the number of elements in an argument.
Int64 getInt(const TableExprId &id)
Bool getBool(const TableExprId &id)
'get' Functions to get the desired result of a function.
NodeDataType
Define the data types of a node.
Definition: ExprNodeRep.h:161
ValueType
Define the value types.
Definition: ExprNodeRep.h:176
Class to hold multiple table expression nodes.
Definition: ExprNodeSet.h:311
this file contains all the compiler specific defines
Definition: mainpage.dox:28
unsigned int uInt
Definition: aipstype.h:51
long long Int64
Define the extra non-standard types used by Casacore (like proposed uSize, Size)
Definition: aipsxtype.h:38
int Int
Definition: aipstype.h:50
bool Bool
Define the standard types used by Casacore.
Definition: aipstype.h:42