How can I easily make a screen shot of a polar graph?

[User_1979]

Hi everyone,

I am using the very simple VI I have attached to display points (up to 50000 points) on a polar graph. When the screen moves over to the area where there is the graph, the big number of dots included in the graph makes everything become very very slow. I would like to know if there is an easy way to make a print screen of the graph so that I initialize back the graph to no points (or make it invisible) and just display the print screen shot of the graph.

I have already used the print screen function (+ cutting off the parts of the picture I don’t want) but this is a bit fastidious to do. Would an already made print screen function exist for this kind of graph?

Thanks a lot,

User

[GerdW]

Hi User,

the polar plot already is a picture, what else do you want?

You can get the whole frontpanel as a picture (invoke node, "get frontpanel image) or the image data of the picture indicator too...

[Andy.G]

Hey User_1979,

From what I understand what you want to do is take a print screen of just the graph? If this is the question, then the answer is simple. 'Right-click' the graph on your front panel or block diagram, and scroll down to 'Create', click 'Invoke Node' and finally click on 'Export Image'. Then place the invoke node onto your block diagram, and create a constant or control on the target node, and you will be able to select whether you save to clipboard or file. Hope this solves your problem! If you have any other questions please feel free to ask.

[Coq_Rouge]

This example show how to do it in two ways

[User_1979 · Accepted solution]

Hi,

I have used part of your solution Coq rouge, and it works fine.I don't get any slowing done of the system. Thanks a lot to both of you, I haven't tried your solution Andy yet but I will look into it.

I have attached the solution that suits my application.

Thanks again,

Regards,

User