/usr/include/casacore/tables/TaQL/ExprConeNode.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | //# ExprConeNode.h: Class representing a cone search in table select expression
//# Copyright (C) 2005
//# 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: ExprConeNode.h 21262 2012-09-07 12:38:36Z gervandiepen $
#ifndef TABLES_EXPRCONENODE_H
#define TABLES_EXPRCONENODE_H
//# Includes
#include <casacore/casa/aips.h>
#include <casacore/tables/TaQL/ExprFuncNode.h>
#include <casacore/tables/TaQL/ExprFuncNodeArray.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
// <summary>
// Class representing a cone search in table select expression
// </summary>
// <use visibility=local>
// <reviewed reviewer="UNKNOWN" date="before2004/08/25" tests="">
// </reviewed>
// <prerequisite>
//# Classes you should understand before using this one.
// <li> <linkto class=TableExprFuncNode>TableExprFuncNode</linkto>
// </prerequisite>
// <synopsis>
// The class represents a cone search.
// It is a specialization of the TableExprFuncNode class.
// Currently the implementation is straightforward, but in the future
// it can do smarter things.
// For instance:
// <ul>
// <li> If the cone positions and radii are constant, one can use
// an integer zone number (e.g. floor(dec)) to avoid the much
// more expensive sine/cosine calculations. Each cone will get a
// minzone and maxzone value (derived from cone position and radius).
// <li> Multiple cones can be ordered on minzone and maxzone.
// </ul>
// </synopsis>
class TableExprConeNode : public TableExprFuncNode
{
public:
// Constructor
TableExprConeNode (FunctionType, NodeDataType,
const TableExprNodeSet& source, uInt origin);
// Destructor
~TableExprConeNode();
// 'get' Functions to get the desired result of a function.
// <group>
Bool getBool (const TableExprId& id);
Int64 getInt (const TableExprId& id);
// </group>
// Check the data and value types of the operands.
// It sets the exptected data and value types of the operands.
// Set the value type of the function result and returns
// the data type of the function result.
static NodeDataType checkOperands (Block<Int>& dtypeOper,
ValueType& resVT,
Block<Int>& vtypeOper,
FunctionType,
PtrBlock<TableExprNodeRep*>&);
// Link the children to the node and convert the children
// to constants if possible. Also convert the node to
// constant if possible.
static TableExprNodeRep* fillNode (TableExprConeNode* thisNode,
PtrBlock<TableExprNodeRep*>& nodes,
const Block<Int>& dtypeOper);
// Link the children to the node and convert the children
// to constants if possible.
static void fillChildNodes (TableExprConeNode* thisNode,
PtrBlock<TableExprNodeRep*>& nodes,
const Block<Int>& dtypeOper);
private:
// Try if the function gives a constant result.
// If so, set the expression type to Constant.
void tryToConst();
// Find the number of elements in an argument.
// It returns -1 if unknown.
static Int findNelem (const TableExprNodeRep* node);
uInt origin_p;
};
class TableExprConeNodeArray : public TableExprFuncNodeArray
{
public:
// Constructor
TableExprConeNodeArray (TableExprFuncNode::FunctionType, NodeDataType,
const TableExprNodeSet& source, uInt origin);
// Destructor
~TableExprConeNodeArray();
// 'get' Functions to get the desired result of a function.
// <group>
MArray<Bool> getArrayBool (const TableExprId& id);
MArray<Int64> getArrayInt (const TableExprId& id);
// </group>
// Link the children to the node and convert the children
// to constants if possible. Also convert the node to
// constant if possible.
static TableExprNodeRep* fillNode (TableExprConeNodeArray* thisNode,
PtrBlock<TableExprNodeRep*>& nodes,
const Block<Int>& dtypeOper);
// Link the children to the node and convert the children
// to constants if possible.
static void fillChildNodes (TableExprConeNodeArray* thisNode,
PtrBlock<TableExprNodeRep*>& nodes,
const Block<Int>& dtypeOper);
private:
// Try if the function gives a constant result.
// If so, set the expression type to Constant.
void tryToConst();
uInt origin_p;
};
} //# NAMESPACE CASACORE - END
#endif
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