Ok thanks for the reply.
What I need is a webcam, a laser, and a GUI.
The webcam can be bought, along with the laser, but to make everything work together is a challenge.
What I want to do, is to follow the laser dot, and display it's position, X-Y,on the computer screen.
The wall that we are projecting the dot on, is mostly flat but has some irregularaties, but is perpendicular when you look at it.
Now the laser is mounted on the furthest tip of a hydraulic arm just like you holding a pen laser in your hand, that the operator moves with a joystick. He lines up the dot with the one in the GUI, without looking at the wall.
Of course, he must be able to edit the GUI, to accept different patterns, such as triangles or rectantangles, of different sizes. I can then outline the 3 or four corner points on either, with relative accuracy.
Just think about drawing the triangles three points with a hydraulic arm.
All mechanical parts are already made, including the hydraulics and the machine it is on.
If possible, please email me so I can hire you or whatever.
This project is open to anyone who can help, but if I pay someone, then it must be kept confidential.
Thanks for your time.
Also I have other projects needing attention.