You can change the display of the x-format to %<%3u>T, this is selectable from the properties.
This however will add a decmal sign to the timestamp.
Question
In the following LabView diagram:
The waveform I get looks triangular, but I am expecting it to look more like square pulse waves. How can I change the time axis to display in milliseconds instead of seconds?
Solution
You can change the display of the x-format to %<%3u>T, this is selectable from the properties.
This however will add a decmal sign to the timestamp.
OTHER TIPS
I don't think you can, but you can change the display format of the X-axis. Right-click on the indicator, select Properties and, on the Display Format tab, set the type to Floating point, Digits to 3 and Precision Type to Digits of precision. Then, double-click the 0.1 on your X-axis and set it to 0.001. You can make the X scrollbar visible to be able to see the whole graph.
You also appear to have missed the point on the selected frequency and width indicators in another post. You don't need them; you can make the Digital Display visible.