# MI - Fimex: include/fimex/CDMReader.h Source File

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# include/fimex/CDMReader.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 CDMREADER_H_
    00025 #define CDMREADER_H_
    00026
    00027 #include <boost/shared_ptr.hpp>
    00028 #include "fimex/CDMException.h"
    00029 #include "fimex/SliceBuilder.h"
    00030
    00031 namespace MetNoFimex
    00032 {
    00033 /* forward declarations */
    00034 class Data;
    00035 class CDM;
    00036 class CDMVariable;
    00037
    00048 class CDMReader
    00049 {
    00050 public:
    00051         CDMReader();
    00052         virtual ~CDMReader() {}
    00053
    00057         virtual const CDM& getCDM() const;
    00071         virtual boost::shared_ptr<Data> getDataSlice(const std::string& varName, size_t unLimDimPos) throw(CDMException) = 0;
    00072
    00081         virtual boost::shared_ptr<Data> getDataSlice(const std::string& varName, const SliceBuilder& sb) throw(CDMException);
    00082
    00092         virtual boost::shared_ptr<Data> getData(const std::string& varName) throw(CDMException);
    00093
    00105         virtual boost::shared_ptr<Data> getScaledDataSlice(const std::string& varName, size_t unLimDimPos) throw(CDMException);
    00118         virtual boost::shared_ptr<Data> getScaledDataSliceInUnit(const std::string& varName, const std::string& unit, size_t unLimDimPos) throw(CDMException);
    00119
    00126         virtual boost::shared_ptr<Data> getScaledDataSlice(const std::string& varName, const SliceBuilder& sb) throw(CDMException);
    00134     virtual boost::shared_ptr<Data> getScaledDataSliceInUnit(const std::string& varName, const std::string& unit, const SliceBuilder& sb) throw(CDMException);
    00135
    00146         virtual boost::shared_ptr<Data> getScaledData(const std::string& varName) throw(CDMException);
    00158     virtual boost::shared_ptr<Data> getScaledDataInUnit(const std::string& varName, const std::string& unit) throw(CDMException);
    00159
    00160 protected:
    00161         boost::shared_ptr<CDM> cdm_;
    00168         virtual boost::shared_ptr<Data> getDataSliceFromMemory(const CDMVariable& variable, size_t unLimDimPos = 0) throw(CDMException);
    00169 private:
    00170         boost::shared_ptr<Data> scaleDataOf(const std::string& varName, boost::shared_ptr<Data> data, double unitScale = 1., double unitOffset = 0.) throw(CDMException);
    00171         boost::shared_ptr<Data> scaleDataToUnitOf(const std::string& varName, boost::shared_ptr<Data> data, const std::string& unit)throw(CDMException);
    00172         void getScaleAndOffsetOf(const std::string& varName, double& scale, double& offset);
    00173 };
    00174
    00175 }
    00176
    00177 #endif /*CDMREADER_H_*/