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From: YILMAZ on 2 Jul 2010 03:42
"Roger Stafford" <ellieandrogerxyzzy(a)mindspring.com.invalid> wrote in message <ht1pm2$1v$1(a)fred.mathworks.com>...
> "Marcin " <mb1234(a)gazeta.pl> wrote in message <hsvvv6$7rl$1(a)fred.mathworks.com>...
> > Hi,
> >
> > I have a set of points describing a 3D object, which has been rotated by some small angle (below 45 degrees) with respect to x,y and z axis. I want to rotate it back to align it with the x-y plane, but the problem is I don't know the angles, so I need to calculate/estimate them somehow. So the questions are:
> >
> > 1. how to plot the object in a mesh like manner?
> > 2. how to calculate the angles?
> > 3. how to rotate it when I know the angles?
> >
> > Many thanks
>
> I am not clear about what you mean when you say, "I want to rotate it back to align it with the x-y plane." Do the set of points "describing" the 3D object all lie in a plane? If so, there are many ways to rotate them so they all come to lie in the x-y plane. Any rotation axis which lies in the plane which bisects the dihedral angle between the points' plane and the x-y plane could be used. You can achieve any orientation you wish for the resulting x-y plane points. If you have a preferred final orientation for the points as they lie in the x-y plane, then I could give you a specific method for solving your problem. As it stands, the problem appears to be indeterminate if I have understood you correctly.
>
> Roger Stafford

Hi Roger;
I have a some problem with rotating my matrices. My matrices describes a rectangle. 4x10 data set. I want this rectangle to move with 30 degree angel.

For example in ms office word we create a new rectangle. After that we can rotate it 30 ° angle.

I tried to use different rules that I thinked, but I could not achieve. Can you offer me a rule?
Thanks for your help
From: Jan Simon on 2 Jul 2010 04:09
Dear YILMAZ,

> Hi Roger;
> I have a some problem with rotating my matrices. My matrices describes a rectangle. 4x10 data set. I want this rectangle to move with 30 degree angel.
>
> For example in ms office word we create a new rectangle. After that we can rotate it 30 ° angle.
>
> I tried to use different rules that I thinked, but I could not achieve. Can you offer me a rule?

Please start a new thread for a new question.
Please show us the "different" rules you have tried before and explain, what problems occurred. It is much easier for CSSMers to fix bugs in your solution than guessing what your input data could be and what problems might have occurred.

Kind regards, Jan
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