My question is easiest to illustrate with an example.
I work with early-stage startups, so often make PowerPoint "mock-ups" of what software will look like when displayed on a computer screen. I start with a transparency of a computer screen or tablet, and use PowerPoint's 3d perspective tools to get my mock-up to match the angle.
A picture might make this clearer.
Getting the perspective to match is a lot of trial-and-error, and the result never looks quite right. Is there a "proper" way to do this? Is there a way to calculate the proper rotation values, rather than approach by trial-and-error?