Question about multiple Y axis

[jpo38]

plotmatrix sample from Qwt 6 is what you're looking for. Remove QGridLayout margins and set spacing to 0 to have a nice multi channel display.

Jean

[mpita]

I've done such the same thing (for the same data RPM, Speed, Throttle, GPS Map ) but I used, for many reasons (flexibility..), a QGraphicsView in which I placed for each acquired channel a QwtPlotCurve, with its own QwtScaleMap. Then i used the "draw" method inside QwtPlotCurve.

Finaly I speed up the whole thing with QGLWidget.

Ciao,
Marco