Value ball that follows the cursor.

Dec 13, 2008 at 10:39 PM

Another cool feature would be to have a "value ball" that follows the graph in either the x or y plane:

This could then be displayed with a tooltop or retrieved to be shown in a textbox elsewhere.

Dec 15, 2008 at 6:50 PM
Good idea, we've thought about it, too.

Definitely we'll have it in D3, but now I can't say something certain about dates.
Aug 18, 2009 at 9:27 PM

Has this been added?

Aug 24, 2009 at 7:07 PM


We've added some part of the feature we've spoken about.

I've recorded two videos about something that you are possibly speaking about: and

These projects are available in 'Source code' page, in the latest Changeset, in DynamicDataDisplay.sln/DevSamples/ projects LineTestSample and AxisControlSample.

If you have more questions, I'll willingly answer them.


Best regards,


Jan 31, 2013 at 11:42 AM
Hi all !

I'm sorry to open again this post....

But i'm very interesting about thecentury's project "LimeTestSample" and "AxisControlSample". It's exactly just I want ! But I don't find these project ...

Can you tell me where i can find it ?

Thanks a lot,

Oct 8, 2013 at 7:57 AM
I found LineTestSample and AxisControlSample in this changeset:

Many things changed in D3 code since then. Are there any examples how to achieve that functionality on current (latest) code?