Can a picture be displayed on the graph??

[Bunny]

I want to transfer a picture made in Labview to waveforem graph...i am not able to figure it??

Thanks for any help or suggestions....

Bunny

[altenbach]

Please clarify.  Are you looking for a static background image to the graph?

You could just make the graph background transparent and place an image behind it. You could also place a picture indicator behind the graph.

[Bunny]

What i really want to do is to plot a circle on a XY Graph..

I don't get that idea exactly..i don't even understand how can i approach it? i made a VI which a can draw a pic of  a circle, but that does not solve my purpose, coz i want it in the XY Graph.

Attached is what i have..

Thanks for any help.

[altenbach]

You can plot a circle like any other curve on an xy-graph. Attached is a simple example (LabVIEW 7.0).

(You should ensure that your xy grid is square, else your circle will display as an ellipse depending on the scaling of the x and y axis. Of course you could read the plot area and scale boundaries from property nodes and scale the cicrcle such that it looks always round.)

[Suzane]

I have 1 question here, what if i take off the information for the sine curve? how will that matter? Is there any special significance for that.

I have attached the other version. Please advise

[altenbach]

The original poster indicated to know how to draw a circle, e.g. using a picture indicator.  Just drawing a circle on an xy graph seemed useless to me unless it should be combined with some other plot. One use would be to graph your data, then draw a circle to highlight some area of interest, e.g. circle the maximum, or similar.

So, NO, there is no significance to the sine function except for decorative purposes. If you want only a circle, leave everything else off. What you do with it is entirely up to you. 🙂

[Suzane]

Thanks alot.

[JonMendez]

New with LabVIEW 8, graphs have properties that allow you to put pictures on your plot area.
For most graphs, you can put a picture in the back (behind the grid), the middle (between the grid and the plot), and the front (in front of the plot). (Intensity graphs only have the front property.)

The property names are PlotImages.Back, PlotImages.Middle, and PlotImages.Front, and they take in the picture datatype (same as the picture control).

It sounds like this is what the original poster is looking for :).

Message Edited by JonMendez on 10-19-2005 10:47 AM

[altenbach]

Yes, this is a great new feature and since we now can download LabVIEW 8.0, it makes actually sense to mention it :D.