plotting big dots in an image

[pakopon]

Hello.

I spent the afternoon searching for a solution to my problem in this forum but I didn't find it yet. 

I need to plot points for a 2D array over an image and up to now I tried with "Plot XY VI", "Draw Point VI" and this one:

http://forums.ni.com/t5/LabVIEW/How-to-plot-two-points-simultaneously-on-image/m-p/844692/highlight/...

With the first VI I get lines instead of just simple points. With the second one, pixels drawn are too small and I barely can see them. Same with the third one.

Anyone knows how to plot bigger dots?

Thanks in advance.

[tst · Accepted solution]

In the thread you linked to, CC suggested using the IMAQ Overlay Oval VI to draw larger circles at those points. Did you try that?

Also, do you have to use IMAQ or can you use the picture control VIs?

[Henrik_Volkers]

Use the picture vis and add filled cycles or rectangles of any size you want.

[pakopon]

Thanks for your response. 

Yes I tried but It didn't work. However, I've recently found a very good example and It seems to work. Sorry for the inconvenience.

I don't have to use IMAQ, I could use picture control VIs too. Is there any difference in computational terms?

[pakopon]

Ok I will try picture VIs too. 

Thanks and greetings to you too