For me, this happens with both the TLineSeries and the TFastLineSeries. However, the drawAllPoints property was set to true. Perhaps setting this to false makes a difference with the TFastLineSeries? I will have to experiment a bit more.

I am using TChart version 8.06 to create a real time graph. When I add the data points via AddXY, I am adding a label for each point. If the users sets up their graph to hold hundred of thousands of data points, and to delete most, or all, of those points when the graph is full, the call to the seri...

I have a customer that wants to be able to have two windows, both with charts, and have the option to make one of them transparent. They want to overlay the transparent window, and graph, on top of the other window and compare their data. It is trivial to make the form transparent, but I cannot find...