Re: Rotated square in space

Thanks all for your answers...
Actually if I find ANY square in the 3d space the fits the projection,
it will work... it doesn't matter if there are infinetely squares...
today I was think on something alike Claudio said, but working with
angles formed between the edges... but i guess that working with
distances might work better.

What I don't see is how to calculate that, my last geometry lesson was
5 years ago lol :)

Explaining a bit, what I want to do is that: a program that takes a
picture, the user marks the four corners of an square object in the
picture, and then I have to mark some specifics points inside that
object... if I have transformation matrix for the object in 3d space, I
can plot those points...

Any other suggestions or clarifications?

Luiz Borges

.

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