How To Position Image Over Another Image at Specific Pixel Location w/ Preserve Aspect

I'm completely new to Unity (although I do know programming/code), so I am likely asking this question wrong and I'm hoping there is in fact a better way to do what I need.

I have a simple image (A) with locations on it visually marked. On certain events I need to move another image (B) over and on top of one of the marked locations. Visualize a rectangle with multiple dots scattered around it (image A) that represent locations that the top image (B) needs to move to precisely and cover.

I was thinking I could use some kind of basic math and write a script to move image B around, but I need to preserve the aspect ratio of my main image A. When I do that, the rectTransform.anchoredPosition, rectTransform.rect.size and rectTransform.sizeDelta don't seem to help as the resolution changes (canvas scales with screen size). I was hoping "GetPixelAdjustedRect" on the image would give something helpful, but nothing looked usable there either. The rectTransform.rect.size does change, but the values do not represent the image shown on the screen due to the "preserve aspect" option set on the Image A script component. I can't see any way to get the size of the resulting rendered image in this case, and so I'm stuck.

Ultimately, it would be great if there was some way to just markup the main image A in some fashion that could use something like iTween to just "moveTo" on image B, but with all my searching I can't find anything like that, although I'm not sure I'm using the right search terms to even start the search to find it.

 

Just to not leave this thread completely hanging in case someone else has this problem. I ended up writing my own scaling script for the image based on the aspect fitter script, that I can then use to know exact pixel locations in this matrix on the main image and then just use basic math as mentioned earlier to know where everything is. I'm still sure there must be a "right way" of doing something like this in Unity, but for now what I have works and it performs well for my purposes.

 

I'm trying to make a pathfinding grid on a 2d image that uses AspectRatioFitter and PreserveAspect and I too have found nothing to help. I'm not a rookie programmer but I don't know enough about all the working parts of Unity UI yet.

@joshuaFS I have this exact problem and have been googling for AGES to find something simple, but apparently there isn't. Do you mean to say here you extended the AspectRatioFitter.cs class, or you wrote a script that works in tandem with it? Or did you just write your own version of it?

 

If anyone has an answer to this, it would be appreciated; I have the same problem.