[vtkusers] get the rotation angles of volume

[toulgen]

Hello,

 

Unfortunely, using a :

 

Double o[3] ;

m_vtkpVolume->GetOrientation(o) ;

 

I have every time (0,0,0) if I use just the mouse for applying rotations.
The rotation applied by mouse has not saved on Orientation property !!!

If I use a ->RotateX(angle), ->RotateY(angle), ->RotateZ(angle), I have a
correct Orientation with GetOrientation().

 

My question is:

How I can get the volume orientation (rotation applied with the mouse and
with the source code using RotateX, RotateY and RotateZ commands)?

 

 

Date: Thu, 17 Sep 2009 11:50:52 -0400

From: Francois Bertel <francois.bertel at kitware.com>

Subject: Re: [vtkusers] get the rotation angles of volume

To: vtkusers at vtk.org

Message-ID:

      <d9819a910909170850t954dd6frb75a29624a7b354a at mail.gmail.com>

Content-Type: text/plain; charset=ISO-8859-1

 

Hello,

 

You can get the resulting angle and axis of rotation with void
GetOrientationWXYZ(double wxyz[4]) (vtkTransform)

 

 

On Thu, Sep 17, 2009 at 11:25 AM, toulgen <toulgen at gmail.com> wrote:

> Hi,

> 

> 

> 

> I have a 3D volume (vtkVolume*vol;).

> 

> To rotate my volume with c++ code, I use this : 

> vol->RotateX(rotationX);

> vol->RotateY(rotationY); vol->RotateZ(rotationZ);

> 

> With mouse, I can rotate my volume.

> 

> 

> 

> I want to get the rotation angles of the new volume position after 

> rotation with mouse?

> 

> 

> 

> Thx

> 

 

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