src/CDMExtractor.h

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00001 /*
00002  * Fimex
00003  * 
00004  * (C) Copyright 2008, met.no
00005  *
00006  * Project Info:  https://wiki.met.no/fimex/start
00007  *
00008  * This library is free software; you can redistribute it and/or modify it
00009  * under the terms of the GNU Lesser General Public License as published by
00010  * the Free Software Foundation; either version 2.1 of the License, or
00011  * (at your option) any later version.
00012  *
00013  * This library is distributed in the hope that it will be useful, but
00014  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
00015  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
00016  * License for more details.
00017  *
00018  * You should have received a copy of the GNU Lesser General Public
00019  * License along with this library; if not, write to the Free Software
00020  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
00021  * USA.
00022  */
00023 
00024 #ifndef CDMEXTRACTOR_H_
00025 #define CDMEXTRACTOR_H_
00026 
00027 #include <boost/array.hpp>
00028 #include <boost/shared_ptr.hpp>
00029 
00030 #include "CDMReader.h"
00031 
00032 namespace MetNoFimex
00033 {
00034 
00035 class CDMExtractor : public MetNoFimex::CDMReader
00036 {
00037 private:
00038         boost::shared_ptr<CDMReader> dataReader;
00039         typedef std::map<std::string, boost::array<size_t, 2> > DimChangeMap; 
00040         DimChangeMap dimChanges;
00044         CDMExtractor();
00045 
00046 public:
00047         CDMExtractor(boost::shared_ptr<CDMReader> dataReader);
00048         virtual ~CDMExtractor();
00049         
00050         virtual const boost::shared_ptr<Data> getDataSlice(const std::string& varName, size_t unLimDimPos = 0) throw(CDMException);
00051 
00058         virtual void removeVariable(std::string variable) throw(CDMException);
00067         virtual void reduceDimension(std::string dimName, size_t start, size_t length) throw(CDMException);
00076         virtual void reduceDimensionStartEnd(std::string dimName, size_t start = 0, long end = 0) throw(CDMException);
00086         virtual void changeDataType(std::string variable, CDMDataType datatype) throw(CDMException);
00087         
00088 };
00089 
00090 }
00091 
00092 #endif /*CDMEXTRACTOR_H_*/

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