ossimplugins::EnvisatAsarData Class Reference

This class is able to read the Envisat file structure. More...

#include <EnvisatAsarData.h>

Public Member Functions
	EnvisatAsarData ()
	Constructor. More...
	~EnvisatAsarData ()
	Destructor. More...
	EnvisatAsarData (const EnvisatAsarData &rhs)
	Copy constructor. More...
EnvisatAsarData &	operator= (const EnvisatAsarData &rhs)
	Copy operator. More...
void	ClearRecords ()
	Removes all the previous records from the EnvisatAsarData. More...
mph *	get_mph ()
sph *	get_sph ()
SQ_ADSR *	get_SQ_ADSR ()
MainProcessingParameters *	get_MainProcessingParameters ()
AntennaElevationPatterns *	get_AntennaElevationPatterns ()
DopplerCentroidParameters *	get_DopplerCentroidParameters ()
SRGRConversionParameters *	get_SRGRConversionParameters (int pos=0)
ChirpParameters *	get_ChirpParameters ()
GeolocationGrid *	get_GeolocationGrid (int num_ds=0)
int	get_num_ds (EnvisatAsarRecord *record)

Protected Attributes
std::list< EnvisatAsarRecord * >	_records

Friends
std::ostream &	operator<< (std::ostream &os, const EnvisatAsarData &data)
	This function writes the EnvisatAsarData in a stream. More...
std::istream &	operator>> (std::istream &is, EnvisatAsarData &data)
	This function reads a EnvisatAsarData from a stream. More...

Detailed Description

This class is able to read the Envisat file structure.

Definition at line 35 of file EnvisatAsarData.h.

Constructor & Destructor Documentation

EnvisatAsarData() [1/2]

ossimplugins::EnvisatAsarData::EnvisatAsarData

(

)

Constructor.

Definition at line 28 of file EnvisatAsarData.cpp.

{
}

~EnvisatAsarData()

ossimplugins::EnvisatAsarData::~EnvisatAsarData

(

)

Destructor.

Definition at line 32 of file EnvisatAsarData.cpp.

References ClearRecords().

{
    ClearRecords();
}

EnvisatAsarData() [2/2]

ossimplugins::EnvisatAsarData::EnvisatAsarData

(

const EnvisatAsarData &

rhs

)

Copy constructor.

Definition at line 99 of file EnvisatAsarData.cpp.

References _records.

{
    std::list<EnvisatAsarRecord*>::const_iterator it = rhs._records.begin();
    while(it != rhs._records.end())
    {
        _records.push_back((*it)->Clone());
        ++it;
    }
}

Member Function Documentation

ClearRecords()

void ossimplugins::EnvisatAsarData::ClearRecords

(

)

Removes all the previous records from the EnvisatAsarData.

Definition at line 122 of file EnvisatAsarData.cpp.

References _records.

Referenced by operator=(), ossimplugins::operator>>(), and ~EnvisatAsarData().

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        delete (*it);
        ++it;
    }
    _records.clear();
}

get_AntennaElevationPatterns()

AntennaElevationPatterns * ossimplugins::EnvisatAsarData::get_AntennaElevationPatterns

(

)

Definition at line 210 of file EnvisatAsarData.cpp.

References _records.

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        if ((*it)->get_mnemonic().compare("AntennaElevationPatterns_rec") == 0) return (AntennaElevationPatterns*)(*it);
        ++it;
    }
    return NULL;
}

get_ChirpParameters()

ChirpParameters * ossimplugins::EnvisatAsarData::get_ChirpParameters

(

)

Definition at line 200 of file EnvisatAsarData.cpp.

References _records.

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        if ((*it)->get_mnemonic().compare("ChirpParameters_rec") == 0)  return (ChirpParameters*)(*it);
        ++it;
    }
    return NULL;
}

get_DopplerCentroidParameters()

DopplerCentroidParameters * ossimplugins::EnvisatAsarData::get_DopplerCentroidParameters

(

)

Definition at line 173 of file EnvisatAsarData.cpp.

References _records.

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        if ((*it)->get_mnemonic().compare("DopplerCentroidParameters_rec") == 0)    return (DopplerCentroidParameters*)(*it);
        ++it;
    }
    return NULL;
}

get_GeolocationGrid()

GeolocationGrid * ossimplugins::EnvisatAsarData::get_GeolocationGrid

(

int

num_ds = 0

)

Definition at line 238 of file EnvisatAsarData.cpp.

References _records.

Referenced by ossimplugins::ossimEnvisatAsarModel::saveState().

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();

    int total_num_ds = 0;
    while(it != _records.end())
    {
        std::string str = (*it)->get_mnemonic();
        if ((*it)->get_mnemonic().compare("GeolocationGrid_rec") == 0)  total_num_ds += 1;
        ++it;
    }

    int cpt = 0;
    it = _records.begin();
    while(it != _records.end())
    {
        std::string str = (*it)->get_mnemonic();
        if ((*it)->get_mnemonic().compare("GeolocationGrid_rec") == 0)
        {
            if ((cpt == num_ds) || (cpt == total_num_ds-1)) return (GeolocationGrid*)(*it);
            cpt +=1;

        }
        ++it;
    }
    return NULL;
}

get_MainProcessingParameters()

MainProcessingParameters * ossimplugins::EnvisatAsarData::get_MainProcessingParameters

(

)

Definition at line 163 of file EnvisatAsarData.cpp.

References _records.

Referenced by ossimplugins::ossimEnvisatAsarModel::saveState().

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        if ((*it)->get_mnemonic().compare("MainProcessingParameters_rec") == 0) return (MainProcessingParameters*)(*it);
        ++it;
    }
    return NULL;
}

get_mph()

mph * ossimplugins::EnvisatAsarData::get_mph

(

)

Definition at line 132 of file EnvisatAsarData.cpp.

References _records.

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        if ((*it)->get_mnemonic().compare("mph_rec") == 0)  return (mph*)(*it);
        ++it;
    }
    return NULL;
}

get_num_ds()

int ossimplugins::EnvisatAsarData::get_num_ds

(

EnvisatAsarRecord *

record

)

Definition at line 267 of file EnvisatAsarData.cpp.

References _records, and ossimplugins::EnvisatAsarRecord::get_mnemonic().

Referenced by ossimplugins::ossimEnvisatAsarModel::saveState().

{
    if (record == NULL) return 0;
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    int cpt = 0;
    while(it != _records.end())
    {
        std::string str = (*it)->get_mnemonic();
        if ((*it)->get_mnemonic().compare(record->get_mnemonic()) == 0)
        {
            cpt++;
        }
        ++it;
    }
    return cpt;
}

get_sph()

sph * ossimplugins::EnvisatAsarData::get_sph

(

)

Definition at line 142 of file EnvisatAsarData.cpp.

References _records.

Referenced by ossimplugins::ossimEnvisatAsarModel::saveState().

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        if ((*it)->get_mnemonic().compare("sph_rec") == 0)  return (sph*)(*it);
        ++it;
    }
    return NULL;
}

get_SQ_ADSR()

SQ_ADSR * ossimplugins::EnvisatAsarData::get_SQ_ADSR

(

)

Definition at line 153 of file EnvisatAsarData.cpp.

References _records.

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        if ((*it)->get_mnemonic().compare("SQ_ADSR_rec") == 0)  return (SQ_ADSR*)(*it);
        ++it;
    }
    return NULL;
}

get_SRGRConversionParameters()

SRGRConversionParameters * ossimplugins::EnvisatAsarData::get_SRGRConversionParameters

(

int

pos = 0

)

Definition at line 183 of file EnvisatAsarData.cpp.

References _records.

Referenced by ossimplugins::ossimEnvisatAsarModel::saveState().

{
    std::list<EnvisatAsarRecord*>::const_iterator it = _records.begin();
    int cpt = 0;
    while(it != _records.end())
    {
        if ((*it)->get_mnemonic().compare("SRGRConversionParameters_rec") == 0)
        {
            if (cpt == pos) {
                return (SRGRConversionParameters*)(*it);
            }
            else cpt++;
        }
        ++it;
    }
    return NULL;
}

operator=()

EnvisatAsarData & ossimplugins::EnvisatAsarData::operator=

(

const EnvisatAsarData &

rhs

)

Copy operator.

Definition at line 109 of file EnvisatAsarData.cpp.

References _records, and ClearRecords().

{
    ClearRecords();
    std::list<EnvisatAsarRecord*>::const_iterator it = rhs._records.begin();
    while(it != rhs._records.end())
    {
        _records.push_back((*it)->Clone());
        ++it;
    }

    return *this;
}

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  os, const EnvisatAsarData &  data  )

friend

This function writes the EnvisatAsarData in a stream.

Definition at line 37 of file EnvisatAsarData.cpp.

{
    std::list<EnvisatAsarRecord*>::const_iterator it = data._records.begin();
    while(it != data._records.end())
    {
        (*it)->Write(os);
        ++it;
    }
    return os;

}

operator>>

std::istream& operator>> ( std::istream &  is, EnvisatAsarData &  data  )

friend

This function reads a EnvisatAsarData from a stream.

Definition at line 49 of file EnvisatAsarData.cpp.

{
    EnvisatAsarDataFactory factory;

    if (sizeof(int)!=4) std::cout << "EnvisatAsarData WARNING : (int) not coded over 32 bits, metadata might not be byte swapped correctly"<< std::endl ;
    if (sizeof(float)!=4) std::cout << "EnvisatAsarData WARNING : (float) not coded over 32 bits, metadata might not be byte swapped correctly"<< std::endl ;
    if (sizeof(double)!=8) std::cout << "EnvisatAsarData WARNING : (double) not coded over 64 bits, metadata might not be byte swapped correctly"<< std::endl ;

    data.ClearRecords();

    // read the first record (MPH)
    EnvisatAsarRecord* mph_record = factory.Instanciate("MPH");
    mph_record->Read(is);
    data._records.push_back(mph_record);

    // read the second record (sph) and update it with the mph (number of dsd)
    EnvisatAsarRecord* sph_record = factory.Instanciate("SPH");
    ((sph*)sph_record)->update_sph_from_mph(*((mph *)mph_record));
    sph_record->Read(is);
    data._records.push_back(sph_record);

    std::vector<dsd> dsd_vector = ((sph*)sph_record)->get_dsd_vector();

    // For each dsd, check if present in the file and in the record factory.
    // If true, instanciate it and add to the EnvisatAsarRecord list.
    std::vector<dsd>::iterator it = dsd_vector.begin();
    while(it != dsd_vector.end())
    {
        std::string str = (it->get_ds_name());

        if ( (it->get_ds_size()) != 0)
        {
            for (int i = 0; i<(it->get_num_dsr()); i++)
            {
                EnvisatAsarRecord* record = factory.Instanciate(str);
                if (record != NULL)
                {
                    is.seekg((std::streampos)(it->get_ds_offset())+ (std::streampos)(i*(it->get_dsr_size())));
                    record->Read(is);
                    data._records.push_back(record);
                }
            }
        }
        ++it;
    }

    return is;
}

Member Data Documentation

_records

std::list<EnvisatAsarRecord*> ossimplugins::EnvisatAsarData::_records

protected

Definition at line 86 of file EnvisatAsarData.h.

Referenced by ClearRecords(), EnvisatAsarData(), get_AntennaElevationPatterns(), get_ChirpParameters(), get_DopplerCentroidParameters(), get_GeolocationGrid(), get_MainProcessingParameters(), get_mph(), get_num_ds(), get_sph(), get_SQ_ADSR(), get_SRGRConversionParameters(), ossimplugins::operator<<(), operator=(), and ossimplugins::operator>>().

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The documentation for this class was generated from the following files:

• EnvisatAsarData.h
• EnvisatAsarData.cpp