Hello all,
I wrote a small online monitoring program displaying data from a Si
detector. Mainly it consists of one acquisition method updating histograms
and displaying them in different canvas. It works well and my only worry
is the drawing speed. In some canvas I would like to have a "scope" mode
displaying all events (namely 100 event/s when I do not draw those 512
bins histograms) but I can hardly draw 10 % of events.
I use the standard method to update the drawing:
if (fRawSelected && cnt%2 == 0 ) // Raw data canvas selected
{
fcRaw->cd(); // change to the canvas
fHRaw[fCurrentEntry-1]->Draw(); // Histo drawing
fcRaw->Modified(); // flag modified
fcRaw->Update(); // Update the Pad
}
Is there any setting I can modify to improve the speed of this
application?
Many thanks in advance for the answer.
Laurent Mirabito
IPN Lyon
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