SurveyPxbImageReader.h

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#ifndef GUARD_surveypxbimagereader_h
#define GUARD_surveypxbimagereader_h

#include <sstream>
#include <vector>
#include <fstream>
#include <string>

template <class T> class SurveyPxbImageReader
{
    public:
        typedef std::vector<T> measurements_t;

    // Constructors
    SurveyPxbImageReader() {};
    SurveyPxbImageReader(std::ifstream &infile, measurements_t &measurements, SurveyPxbImage::count_t reserve = 800)
    {
        read(infile, measurements, reserve);
    };

    SurveyPxbImageReader(std::string filename, measurements_t &measurements, SurveyPxbImage::count_t reserve = 800)
    { 
        std::ifstream infile(filename.c_str());
        if (!infile)
        {
            std::cerr << "Cannot open file " << filename
                 << " - operation aborted." << std::endl;
        }
        read(infile, measurements, reserve);
    };
    
    SurveyPxbImage::count_t read(std::ifstream &infile, measurements_t &measurements, SurveyPxbImage::count_t reserve = 830)
    {

        // prepare the measurements vector
        measurements.clear();
        measurements.reserve(reserve);

        // container for the current line
        std::string aLine;

        // loop over lines of input file
        while (std::getline(infile,aLine))
        {
            // strip off everything after a hash
            std::string stripped = "";
            std::string::iterator iter = std::find(aLine.begin(), aLine.end(), '#');
            std::copy(aLine.begin(), iter, std::back_inserter(stripped));
            // read one measurment and add to vector if successfull
            std::istringstream iss(stripped, std::istringstream::in);
            T curMeas(iss);
            if (curMeas.isValid())
            {
                 measurements.push_back(curMeas);
            }
        }

        return measurements.size();
    }

    protected:

};

#endif