Hi Steve, I am NOT scrolling, but adding the new points to the right of the existing ones until the right end of the graph is reached (say at 1,000,000 points), then CLEARING the graph, bringing the number of points down to ZERO, and then starting to add points again at the left end. Then repeating ...

When a 'burst' of a few points (say 1000 points) is added (say every 100 milliseconds) to a graph of many points (say almost 1,000,000 points) over a long time period (in this case 100 seconds) using FastLine->AddXY(), and then the graph is cleared and plotting started all over again, I found that t...

Hi Pep, I earlier sent a message to the Forum on using FastLineSeries to plot arrays of up to 1,000,000 points, but I plot them as they are acquired in a multitasking data acquisition system in real-time, at about 2000 pts every 100 msec. You suggested that I use Dynamic Arrays instead of the AddXY(...

Thanks Pep,

I'll try this out now. May have some more questions in the future, because I plot my part of my graph every 100 msec rather than all at once.

Cheers,

Bill

I am using FastLineSeries to plot arrays of up to 1,000,000 points, but I plot them as they are acquired in a data acquisition system, about 2000 pts every 100 msec. To do this I am using FastLineSeries->AddXY() to add points every 100 msec, and FastLineSeries->Clear() to clear the chart every minut...

For drawing points using TFastLineSeries, I think it would be GREAT to have DrawAllPoints=false draw a line between Ymax and Ymin points at each X pixel rather than a single Y point at each X pixel for each X pixel as it is now. That way, for the DrawAllPoints example in the Demo, clicking on the ( ...