REQUEST: Create bounding box from single center-point click

[robotaiguy]

I was curious if anyone had experimenting creating a bounding box from a single center-point click. Each class could have a specified width and height parameter so that the bounding box can be created after clicking the center point.

Let's say you could snap to center of a coin and click a single point in the center of the penny. Then every penny bounding box could have the same center position. When you inference, provided you calibrated mm/px, you could determine distance between pennies.

Would this be a very complicated feature to implement?