Saturday 23 May 2015

MS Paint Rotate Notes



4 comments:

  1. This comment has been removed by the author.

    ReplyDelete
  2. This comment has been removed by the author.

    ReplyDelete
  3. It's incredible, but leaving all the unnecessarily widespread irony aside, this is what I was looking for.

    But trying this I've found that it work with angles less than 40 degrees... for angle from 38 to 45 degrees I've had to modify the fourth step;
    For example for an angle of 40 degrees the fourth step become

    - stretch horizontally 77 and vertically 84
    and for an angle of 45 degrees it becomes
    - stretch horizontally 71 and vertically 84 or 85

    otherwise the image is distorted...
    I've still not understood what is the math problem underlying.
    The arctan(sin(x)) method doesn't seem to be affected by this limit-angle problem.
    Forgive my poor English.

    ReplyDelete
  4. Gigi Mancinelli
    Gigi Mancinelli
    6 minuti fa (modificato)
    It's incredible, but leaving all the unnecessarily widespread irony aside, this is what I was looking for.

    But trying this I've found that it work with angles less than 40 degrees... for angle from 38 to 45 degrees I've had to modify the fourth step;
    For example for an angle of 40 degrees the fourth step become

    - stretch horizontally 77 and vertically 84
    and for an angle of 45 degrees it becomes
    - stretch horizontally 71 and vertically 84 or 85

    otherwise the image is distorted...
    I've still not understood what is the math problem underlying.
    The arctan(sin(x)) method doesn't seem to be affected by this limit-angle problem.
    Forgive my poor English.

    ReplyDelete