Very very long Plot

This is a newbie question. I'm looking for guidance on how best to plot a long chart.

I have to plot a very long chart - potentially several million points. Also, the user can zoom in so the virtual chart can be 100 million pixels long.

The data is accessed via a QAbstractTableModel.

Is this a suitable task for the Qwt widgets?

Thanks
Bob

The number of points have an impact on the painting performance. After writing a QwtData object, that forwards the points from your model, you will see if it is fast for your needs. If not:

a) Don't use a model. Passing trillions of points through this fat API hurts.
b) Implement different level of details depending on the zoom level to reduce the number of points.

Uwe

Thanks, Uwe. I'll rework the strategy to bypass the model stuff.

Bob