Qwt real time

**Spitfire** · 9th February 2012, 11:33

Or every time you add new point manually set scale div using setInterval():

Qt Code:

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plot->axisScaleDiv( QwtPlot::xBottom )->setInterval( new_point_time - visible_time_span, new_point_time );

plot->axisScaleDiv( QwtPlot::xBottom )->setInterval( new_point_time - visible_time_span, new_point_time );

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**oddytz1989** · 10th February 2012, 04:41

Thanks. Made so:

Qt Code:

Switch view

if ((vectX1.size()) < 10)
            {
                vectX1.append(time1.fromTime_t(osX).toTime_t());
                vectY1.append(osY);
                curv1->setSamples(vectX1,vectY1);
            }
        else
            {
 
                vectX1.pop_front();
                vectY1.pop_front();
                vectX1.append(time1.fromTime_t(osX).toTime_t());
                vectY1.append(osY);
                curv1->setSamples(vectX1,vectY1);
 
            }

if ((vectX1.size()) < 10)
            {
                vectX1.append(time1.fromTime_t(osX).toTime_t());
                vectY1.append(osY);
                curv1->setSamples(vectX1,vectY1);
            }
        else
            {

                vectX1.pop_front();
                vectY1.pop_front();
                vectX1.append(time1.fromTime_t(osX).toTime_t());
                vectY1.append(osY);
                curv1->setSamples(vectX1,vectY1);

            }

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