I would like to use cell values as XY-coordinates, to put on top of a raster image to evaluate the position of some equipment, using the model on the image as the reference.

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Here is an image where I've used an image and a see-through bubble diagram, however making the reference length and joint [0,0] on the diagram and picture the same (strecthed and reduced diagram until i fit) was a daunting task, and I wonder if there are simpler ways to do it?