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secondo/Algebras/Raster2/Operators/atlocation.h

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2026-01-23 17:03:45 +08:00
/*
This file is part of SECONDO.
Copyright (C) 2011, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SECONDO 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef RASTER2_ATLOCATION_H
#define RASTER2_ATLOCATION_H
#include "../stype.h"
#include "../mstype.h"
namespace raster2
{
extern ValueMapping atlocationFuns[];
ListExpr atlocationTypeMap(ListExpr args);
int atlocationSelectFun(ListExpr args);
struct atlocationInfo : OperatorInfo
{
atlocationInfo()
{
name = "atlocation";
signature = "sType x " + Point::BasicType() + " -> Type";
appendSignature("msType x " + Point::BasicType() + " -> mType");
appendSignature("msType x " + Point::BasicType() + " x " +
datetime::DateTime::BasicType() + " -> Type");
syntax = "_ atlocation [_, _]";
meaning = "Returns the value at location point.";
}
};
}
#endif /* #define RASTER2_ATLOCATION_H */