Zooming images – zoom to fit width property?

[another_novice]

I have an inspection system that captures images of varying x size (y is always constant.) I use the Zoom to Fit property node with a boolean on the front panel so the user can see the entire image, and then zoom in with the mouse/cursor. (Shift and left click to zoom out is something they forget and/or find awkward.)

The variation in aspect ratio can be significant and on shorter images (smaller X) it results in a lot of white space either side of the picture. My users find this unattractive so I want a function that zooms to fit the X dimension of the image to the space available. Any suggestions on how to do this?

BTW, I’m stuck with using LV2015.

[BruceAmmons · Accepted solution]

There is not a built in function, but you could do it fairly easily.  Use a property node to get the size of the display window, and get the size of the image using the IMAQ Get Size VI.  Divide the two X dimensions to get your zoom factor, and set that using a property node.

Bruce

[another_novice]

Thanks for the suggestion. Here's what I did. It works great.