time scaling

[09819710353]

How can I perform Time scaling on a signal like getting X(2t) or X(t/2) from x(t) in labVIEW. PLease reply quick.

[TWGomez]

extract the time from the waveform, scale it, add it back in....

[09819710353]

Hi TWGOMEZ

Thanks for the reply. but tell me one thing , Im reading the simulated waveform from .txt file and I want to time scale this waveform . Im attaching the VI and the required text file. I want to time scale the waveform coming to the waveform graph. Pls help.

[Dennis_Knutson]

Since you do not have timing data to the text file, you can add it this way with the Build Waveform function.

Message Edited by Dennis Knutson on 05-03-2008 08:23 AM

[09819710353]

Thanks Dennis.

I want to scale only a part of the waveform and then replace the orginal part with that scaled part. How shal  I go about it?? Pls reply.

[Dennis_Knutson]

I don't quite understand. By definition, a single waveform has a uniform dt. What exactly are you trying to do?

[09819710353]

In simple terms I just want to expand/contract a part of a waveform

[TWGomez]

Use an XY graph, and do basically the same thing as shown above, but dT being X is an array that you can add whatever values you want, each one corresponding with the same index of Y...

[Dennis_Knutson]

This simplest way would be to just use the zoom function on the graph palette. You can also change the min/max settings of the graph with a property node.

[09819710353]

Thx TWGOMEZ

But can you put up an example for that??