Hello All and @dr.know.
I have recently submitted a post that shows a simple way to gather the actual horizontal and vertical camera aim angles. These angles are to be used with a spreadsheet that I will provide, The spreadsheet will present a list of layout coordinates and a plot with all corners labeled with their respective X and Y values. To obtain this layout information you only need to input the angle values (from the jig) and camera geometry (height, width, etc.) information already in the spreadsheet.
Here is the link to the recent post:
Camera Aim Angle Measurement, Mostly Cardboard, tape, and a protractor Jig
Below are some pictures of what my spreadsheet layout data allowed me to make.
