Rotation Matrix?

[thebest108]

Any math wizzes here know a 2D rotation matrix ? Something that gets me the new x and z. Also something that calculates how much to rotate bases on distance

[Mazetar]

If I remember correctly that would be:

 

R(O) = [ cos(O)  -sin(O)]

          [ sin(O)    cos(O)]

 

edit, what new Z inn 2d space?

[thebest108]

So for x it's x(cosO-sinO) ?

[Mazetar]

2D rotation matrix  ? Something that gets me the new x and z

 

a new Z?

[thebest108]

Sorry I meant y

[Mazetar]

This should tell you what you need to know, for whatever you need it:

 

http://en.wikipedia.org/wiki/Rotation_matrix