void BasicGlCamera::UpdateText ( )

protectedvirtual

Definition at line 350 of file BasicGlCamera.cc.

References ACTUAL_NUM_PIXELS, dataText, fData, fmax, fmean, fmedian, fmin, frms, i, str, and unitsText.

Referenced by QCameraWidget::CalculatePixelsColor().

    {
        ostringstream str;
        float min, max, median;
        int ii=0;
        for (;ii<ACTUAL_NUM_PIXELS;ii++)
        {
            if (finite(fData[ii]))
            {
                min = max = fData[ii];
                break;
            }
        }
        double mean = 0;
        double rms = 0;
        median = 0;
        if (ii==ACTUAL_NUM_PIXELS)
        {
            fmin = fmax = fmean = frms = fmedian = 0;
            return;
        }

        vector<double> medianVec;
        medianVec.resize(ACTUAL_NUM_PIXELS);
        auto it = medianVec.begin();
        int numSamples = 0;
        for (int i=0;i<ACTUAL_NUM_PIXELS;i++)
        {
            if (!finite(fData[i]))
                continue;
            if (fData[i] < min)
                min = fData[i];
            if (fData[i] > max)
                max = fData[i];
            mean += fData[i];
            rms += fData[i]*fData[i];
            //medianSet.insert(fData[i]);
            *it = fData[i];
            it++;
            numSamples++;
        }

//        vector<double> medianVec;
//        medianVec.resize(ACTUAL_NUM_PIXELS);
//        int iii=0;
//        for (auto it=medianVec.begin(); it != medianVec.end(); it++) {
//            *it = fData[iii];
//            iii++;
//        }
        sort(medianVec.begin(), medianVec.begin()+numSamples);


        mean /= numSamples;
        rms = sqrt((rms/numSamples) - (mean * mean));

//       multiset<double>::iterator it = medianSet.begin();
        auto jt = medianVec.begin();
        for (int i=0;i<(numSamples/2)-1;i++)
        {
//            it++;
            jt++;
        }
        median = *jt;
 //       cout << *it << " " << *jt << endl;
        if (numSamples%2==0){
        jt++;
        median += *jt;
        median /= 2;}

        str << "Min: " << min << endl << " Max: " << max << " Mean: " << mean << " RMS: " << rms << " Median: " << median;
        str << " Units: " << unitsText;
        dataText = str.str();

        fmin = min;
        fmax = max;
        fmean = mean;
        frms = rms;
        fmedian = median;
    }

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