[vtkusers] where is the code for rotation?

[Hossein Nazem]

hi Alex

I reTest *SetDesierdUpdateRate*, there is a slight rise in rotation speed
but in comparison with default rotation(by mouse) it is still very slow.
the default rotation reduces resolution during rotation and recover it
after rotation.

as you said rotate method was in vtkInteractorStyle subclasses but I can't
understand how this method reduces resolution.

the mapper I'm using is *vtksmartvolumemapper *and having some methods
to work with memory it* *has arouse my suspicious, although I didn't find
anything yet.
 as a novice I will appreciate any advice

thanks
hossein


On Wed, Feb 20, 2013 at 4:05 PM, Hossein Nazem <hossein.nazem at gmail.com>wrote:

> tnx alex
> i will explore vtkInteractorStyle,... i tested GetDesiredUpdateRate()
> but i didnt see any impact on image quality i think its better i test it
> again
> hossein
>
>
>
> On Wed, Feb 20, 2013 at 1:06 AM, Alex Malyushytskyy <alexmalvtk at gmail.com>wrote:
>
>> I bet it is in vtkInteractorStyle or it subclass.
>> I would expect  all you need to do is SetDesiredUpdateRate
>> for vtkRenderWindow ( get it from interactor ) to interactor desired
>> update rate ( GetDesiredUpdateRate() )
>> before rotation:
>>
>> ( r - vtkRenderWindowInteractor )
>>
>>  r->GetRenderWindow()->SetDesiredUpdateRate(r->GetDesiredUpdateRate());
>>
>> and return it back tio normal after rotation :
>>
>>  r->GetRenderWindow()->SetDesiredUpdateRate(r->GetStillUpdateRate());
>>
>>
>> Alex
>>
>>
>>
>> On Mon, Feb 18, 2013 at 10:01 AM, Hossein Nazem <hossein.nazem at gmail.com>
>> wrote:
>> > i checked the  vtkRenderWindowInteractor.cxx but i couldnt find the code
>> > relevent to rotation
>> >
>> >
>> > On Mon, Feb 18, 2013 at 9:24 PM, Hossein Nazem <hossein.nazem at gmail.com
>> >
>> > wrote:
>> >>
>> >>
>> >> hi all,
>> >> i have a 3d volume and i ve wrote a function to rotate it:
>> >>
>> >> Renderer->GetActiveCamera()->Roll(deg1);
>> >> Renderer->GetActiveCamera()->Azimuth(deg2);
>> >> Renderer->GetActiveCamera()->Elevation(deg3);
>> >>
>> >> in comparison with defult rotation in vtkrenderwindowinteractor, mine
>> is
>> >> slower and keep the image quality while the defult rotation(which use
>> mouse
>> >> events) reduces the quality during the rotation and when the rotation
>> >> finished it restores the initial quality, i want to know where is the
>> code
>> >> of this process or how could i do the same?
>> >> thanks
>> >> hossein
>> >
>> >
>> >
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