[Paraview] Using VR-Style input devices, analog input from 3Dconnexion device

[Cory Quammen]

Christian,

It seems we have a common interest in adding support for the
SpaceNavigator to ParaView. I wrote a style for just this purpose and
posted it on gerrit:

http://review.source.kitware.com/#/t/1646/

This style rotates and translates the world and not individual objects.

I think my topic addresses both of your unresolved issues. Would you
care to checkout out this topic and try it out?

Thank you,
Cory

On Thu, Dec 20, 2012 at 11:32 AM, Christian Richter
<christian.richter at ovgu.de> wrote:
> Hi Aashish,
>
> this week I've written a new Interactor style to use a 3dconnexion
> SpaceNavigator in Paraview with vrpn server. Translational motion works fine
> in parallel and orthogonal projection but rotation is not finished yet.
>
> Two things I did not solve:
> - the first time a new Interaction is created, PV crashes when the point
> vtkVRQueue:Enqueue, this->Mutex->Lock() is reached (called by
> newAnalogValue), if I use "Restore State" it works -> I think anything has
> to be initialized but did not find it.
> - rotation of the scene is confusing to me. I have as input 3 analog values
> (roll/pitch/yaw) between -1 and +1. I tried to map this to CameraViewUp with
> euler-zyx-Transformation. But it does not work as expected.
>
> Question at all: what would be the best way to map a scalar value to the
> rotation of a scene/view ? What does the buttons roll/pitch/yaw in the
> camera-property-menue ? I think I would need exact the same functions behind
> theses 3 buttons.
>
> Here is the code-snippet I tried for that:
>
>     vtkSMPropertyHelper( proxy, "CameraViewUp" ).Get( rot, 3 ); //rotation
>     phi= data.data.analog.channel[3]*M_PI/180;
>     theta= data.data.analog.channel[4]*M_PI/180;
>     psi= data.data.analog.channel[5]*M_PI/180;
>
>      double x=rot[0];
>      double y=rot[1];
>      double z=rot[2];
>
>      double tt[3][3];
>      tt[0][0]=cos(theta)*cos(psi);
>      tt[0][1]=-cos(phi)*sin(psi)+sin(phi)*sin(theta)*cos(psi);
>      tt[0][2]=sin(phi)*sin(psi)+cos(phi)*sin(theta)*cos(psi);
>
>      tt[1][0]=cos(theta)*sin(psi);
>      tt[1][1]=cos(phi)*cos(psi)+sin(phi)*sin(theta)*cos(psi);
>      tt[1][2]=-sin(phi)*cos(psi)+cos(phi)*sin(theta)*sin(psi);
>
>      tt[2][0]=-sin(theta);
>      tt[2][1]=sin(phi)*cos(theta);
>      tt[2][2]=cos(phi)*cos(theta);
>
>      rot[0] = x*tt[0][0]+y*tt[0][1]+z*tt[0][2];
>      rot[1] = x*tt[1][0]+y*tt[1][1]+z*tt[1][2];
>      rot[2] = x*tt[2][0]+y*tt[2][1]+z*tt[2][2];
>
>      vtkSMPropertyHelper( proxy, "CameraViewUp" ).Set( rot, 3 );
>
> I attached the sourcecode, maybe someone has time over christmas to have a
> look.
>
> Have a nice Christmas time & happy new year,
> Christian
>
> Am 30.11.2012 03:42, schrieb Aashish Chaudhary:
>
> Hi Christian,
>
> Are you still interested? if yes, let me know and I can provide you more
> help.
>
> Thanks,
>
>
> On Tue, Nov 6, 2012 at 11:34 AM, Christian Richter
> <christian.richter at ovgu.de> wrote:
>>
>> ell me how to write a styl
>
>
>
>
> --
> | Aashish Chaudhary
> | R&D Engineer
> | Kitware Inc.
> | www.kitware.com
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Follow this link to subscribe/unsubscribe:
> http://www.paraview.org/mailman/listinfo/paraview
>



-- 
Cory Quammen
Research Associate
Department of Computer Science
The University of North Carolina at Chapel Hill