How to plot curves on an intensity graph

[astro1024]

Hi,

I am writing a LabVIEW program for real-time spectral analysis of a camera. I want to draw spectral lines on the intensity graph in a one-to-one correspondence. I am not sure which properties to modify to achieve this functionality, and this is what I have tried so far. Thank you for your help.

[altenbach · Accepted solution]

We have absolutely no idea what you did to create your graph, so we cannot really give advice.

I would use mouse events to get the pixel and update the overlay using "plot images".

(very old example, there are many more)

[astro1024]

Thanks very much! Thank you very much!

I believe that I can solve the problem through your example.

[astro1024]

Hi!

I have a little confusion that I would like to consult. How to display and control the colorbar of an intensity graph in the VI in the example? I have tried but it cannot be displayed directly.

[altenbach]

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@astro1024 wrote:

I have a little confusion that I would like to consult. How to display and control the colorbar of an intensity graph in the VI in the example? I have tried but it cannot be displayed directly.

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Yes, something seems corrupted with that graph. I would create a new one.

[astro1024]

I have found a solution.

Right click the Intensity Graph, on the popup menu, => Visible Items, make sure both Z Scale and Ramp are checked.