The TCursorTool ended up giving me the perfect solution. When setting the Snap property to True for the TCursorTool, it provides me with the ValueIndex in it's OnChange event handler. This is exactly what I needed! I found the solution in the TeeChart 7 Pro Demo under All Futures -> Tools -> Cursors...

Nevermind, I missed the IgnoreNulls property for TFastLineSeries. It finally works! I am ecstatic!

Thanks for the help so far. The SetNull and AddNullXY methods were exactly what I was looking for. Unfortunately I ran into another problem. The SetNull and AddNullXY methods only works on TLineSeries and not on TFastLineSeries. I tried using TLineSeries before but because of the amount of data I ha...

I tried deleting the specific points, but TChart reconnects the two points on either side of the deleted point. This is not the result I am looking for. I need to have a gap between 2 or more points. Is this at all possible?

Ok, found it. Previously I only downloaded the TeeChart Pro source package, I didn't know that there's a 16MB installer containing all the rest of the stuff. Sorry, my mistake!

Thx for your response Pep! I do have the compiled Demo for TeeChart 7, but I can't find the source code for it anywhere. I looked under All Downloads as well as Customer downloads. Could you perhaps provide me with the URL to the demo's source code?

Thx for your help!

Hi, as explained in my previous post , I plot Measurements over Time using a TFastLineSeries. The Measurement (amplitude) is plotted on the Y axis and the Time is plotted on the X axis. The software I'm developing communicates with a hardware device and records information received from the hardware...

Hi, I've got a chart showing Measurements over Time using TFastLineSeries lines. The measurement result (amplitude) is plotted on the Y axis and the time scale is plotted on the X axis. I also store detailed information about each measurement in a seperate array. The series line is filled using valu...