[Ves] Rotate 3D object to the specifeid angles [iOS]

[shamsudheen]

Thanks again for the quick reply .

I think , this is what you mentioned.

vesSharedPtr<vesActor> actor = vesKiwiPolyDataRepresentationPtr.actor();
actor->setRotation(angleAxis);

However now I'm unable to get vesKiwiPolyDataRepresentation pointer.

I have just used   bool loadDataset(const std::string& filename); method to load my 3D file.this is a vesKiwiViewerApp.h class method.

How can I get the vesKiwiPolyDataRepresentation  pointer ? could you please help on this.

Thanks again for the quick ,professional and effective responds.


On Feb 6, 2013, at 3:19 AM, Pat Marion wrote:

> Instead of adjusting the camera, you should set a transform on the vesActor object associated with your model.
> 
> You can access the vesActor from the vesKiwiPolyDataRepresentation for your model, if you are using that class in your app.
> 
> For example code, please see the implementation of vesKiwiDataRepresentation::setTransformOnActor().
> 
> Pat
> 
> On Wed, Feb 6, 2013 at 7:10 PM, shamsudheen <shamsutk87 at gmail.com> wrote:
> Hi All,
> 
> I have successfully built the VES/Kiwi and have rendered one 3D obj  in to my iPad application from a .obj file.
> 
> Im using vesKiwiViewerApp in my application.The Gestures are working and the 3D model is rotating well.
> 
> Now I would like to rotate my 3D modal/object through programmatically.
> 
> I have  to rotate my 3D object to the following angles,, 30º,60º,90º,120º,150º,180º,210º,240º,270º,300º,330º,360º
> 
> So I have wrote the code as below to rotate the  3D object in to 30º
> 
>     vesVector3f cameraPosition (30, 0, 1);
>     self->renderer.app->setCameraPosition(cameraPosition);
> 
> Its rotated.However not exactly to the 30º and the 3D model is zoomed out.
> 
> My screen size is (400, 400).So the console window displayed the following when 3D model renderes
> 
> resize(400, 399)
> x:0.000000 y:0.000000 z:-1.000000
> x:0.000000 y:0.000000 z:-439.917145
> 
> So I have set the camera position as 
>  
>     vesVector3f cameraPosition (30, 0,-439.917145);
>     self->renderer.app->setCameraPosition(cameraPosition);
> 
> Now the zoom is correct and the 3D model is rotated.However not exactly to 30.
> 
> My target is to rotate the object in different angles.how can achieve this?
> 
> Is it possible to access the rendered 3D object and set the positions instead of using the camera ?
> 
> Any help on this is appreciated.
> 
> Thanks
> 
>  
> 

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