[vtkusers] where is the code for rotation?

[Alex Malyushytskyy]

Also do not forget to call
vtkRenderWindowInteractor::Render();

every time after you modify the camera.

Alex


On Thu, Feb 21, 2013 at 4:06 PM, Alex Malyushytskyy
<alexmalvtk at gmail.com> wrote:
> Have you tried to call
>
> void vtkInteractorStyle::StartRotate()
> before rotation
>
> and
> void vtkInteractorStyle::StopState()
> after?
>
> I am not sure this will be sufficient, but it should be at least part
> of the solution.
>
> Alex
>
>
>
> On Wed, Feb 20, 2013 at 10:09 PM, Hossein Nazem <hossein.nazem at gmail.com> wrote:
>> 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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>>>
>>>
>>