I had a very specific idea of a photograph in mind and I needed to validate whether I would be able to achieve it. For that I needed to visualize the sizes of bokeh balls in relation to the subject and do it for different focal lengths and aperture values.
I decided to try to code this so I can look it up again in the future. This project is quick and dirty and ugly and it does what it says on the tin.
Source Code: GitHub
Try it here