Overlay Points from Array, Scaled Up

[diarmaede]

Hello All,

I am trying to overlay an array of points onto an image, but the image is fairly large, so I need to make the points bigger in order to be able to see them in "Zoom to Fit" mode.  Is there a way to do this?  Possible options would be:

1.  Increase the size of the points

2.  Use the "+" symbol in ROI Tools

3.  Use a bitmap

4.  Use an ascii character

I can do any 3 and 4 above with single points, but I don't know how to do something similar using an array of points.  Any help would be greatly appreciated.

Thanks.

[James.M]

Are you familiar with the Picture Functions Palette? There is a VI called Draw Point, which takes inputs for point location, size, and color. You can use this VI inside of a For loop to draw multiple points.

Edit: after re-reading your post I think you may be using NI Vision? If so, you can use the IMAQ Overlay Oval VI with the Drawing Mode set to Fill. You just have to calculate the oval bounding rectangle. Like this:

[diarmaede]

Thanks for your help.  Yes, I am using NI Vision.  Is there a way to take the properties of the oval and apply them to an array of points?

[James.M]

The snippet I included above takes in an array of X and Y values (points).

[diarmaede]

Yes, yes it does.  Not nearly enough coffee this morning.  Thanks again.