Does anybody know if it is possible to determine programatically if a Waveform Graph Scale has been changed with the zoom tool or manually modifying the numbers in the scale legend? I thought the Scale range change event notifies the difference, but i cannot get it.
Does anybody know if it is possible to determine programatically if a Waveform Graph Scale has been changed with the zoom tool or manually modifying the numbers in the scale legend? I thought the Scale range change event notifies the difference, but i cannot get it.
Thanks in advanced.
Regards.
you could store the scale value on a shift register and compare the before and now values to not equal to bool out a change
Thanks both for the answers. I will check if it works later.
I need this differentiation because I am creating an Osciloscope. If the change is made manually we need to create the new scale and the new grids starting in this new point mantaining the time/division value, but if we zoom in, the programm should recalculate even the val per division.
[...] the Scale range change event notifies the difference, but i cannot get it
This works for me. What isn't working for you?
Jim You're entirely bonkers. But I'll tell you a secret. All the best people are. ~ Alice For he does not know what will happen; So who can tell him when it will occur? Eccl. 8:7
Yes, that works. The thing is that I cannot get the info about how was the scale modified. I need to know if the user has changed the scale manually writing down a number in the scale legend or if it has been done with the zoom tool...
I don't know how Rube-ish this is, but it works. What it does is takes advantage of the fact that the zoom tool will (probably) change both axes, while typing will only change one.
Jim You're entirely bonkers. But I'll tell you a secret. All the best people are. ~ Alice For he does not know what will happen; So who can tell him when it will occur? Eccl. 8:7
