plotting profiles of intensity graphs

[winterfresh11]

Hello all,

I have been reading a lot of older discussion on here about drawing on graphs and overlaying picture's and x,y graphs on intensity plots, but none have seemed to be exactly what I have been looking for. While searching I stumbled across this link, http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Allow-axis-swap-for-Waveform-charts-graphs-and-intensi... , which contains a picture of exactly what i'm trying to do.

I'm wondering how you go about generating those x and y profiles?

using LV 13,

Thanks!

[alexderjuengere]

hi winterfresh11,

I guess by multplicating two basic mathematical functions, e.g. something like this:

Regards,
Alex

[dmsilev]

The data underlying an intensity graph is a 2D arrary, so you should be able to pipe that array into an Index Array operator and extract either a row or a column, which you can then plot as a line trace.

[alexderjuengere]

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@dmsilev wrote:

The data underlying an intensity graph is a 2D arrary, so you should be able to pipe that array into an Index Array operator and extract either a row or a column, which you can then plot as a line trace.

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I didn't think of that ... @winterfresh11, would you please specify what's your meaning of "profile"?

[winterfresh11]

I found a way very similar to that. If you add a cursor to the intensity graph, use a property node to get the coordinates of that cursor and then do what you described dmsilev you can generate a live feed of the data along thoes two cursor lines, I guess that is what I ment by profile, in waveform graphs if everything is in a while loop.

In that picutre from the url he has a rotated graph so the y axis waveform fits along the y axis of the intensity plot. This seems like it should be simple but I dont know if it is

[alexderjuengere]

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winterfresh11 a écrit :

I found a way very similar to that. If you add a cursor to the intensity graph, use a property node to get the coordinates of that cursor and then do what you described dmsilev you can generate a live feed of the data along thoes two cursor lines, I guess that is what I ment by profile, in waveform graphs if everything is in a while loop.

In that picutre from the url he has a rotated graph so the y axis waveform fits along the y axis of the intensity plot. This seems like it should be simple but I dont know if it is

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upload your vi icluding some sample data set and we will help you.