[Paraview] Paraview Webgl Scene

[Paul Graham]

Hi Sebastien,

Thanks for your instructions, they were very helpful.  I basically changed
drawScene() to render just one scene in the cache (rather than all of them)
and the animation is working.

Now I have to try and figure out why the alpha levels are not working.

Paul





On 21 October 2013 11:59, Sebastien Jourdain <sebastien.jourdain at kitware.com
> wrote:

> As far a I remember, this.objects is only the cache of all possible
> objects that can compose the scene.
> To create an animation, you first need all your objects in the cache and
> then you need to update the scene to only pick the objects that are part of
> the scene for a given time step.
>
> Hopefully that will help you out.
>
> Seb
>
>
>
> On Sat, Oct 19, 2013 at 10:17 PM, Paul Graham <meteorpaul at gmail.com>wrote:
>
>> Hi Sebastien,
>>
>> I attempted to setup a basic animation as proof of concept by creating an
>> array of scenes and then, in 'drawScene()', updating
>> 'this.objects[scenelayer].data = newdata', where scenelayer is one
>> component of the static scene and 'newdata' is a base64 decoded string from
>> the array of scenes.
>>
>> Unfortunately, thus far I have not been successful in getting the scene
>> to update.  I wonder if it might be an object scoping issue with
>> 'this.objects'.
>>
>> Any ideas as to what might be the best approach?
>>
>> Thanks,
>>
>> Paul
>>
>>
>>
>> On 17 October 2013 07:17, Sebastien Jourdain <
>> sebastien.jourdain at kitware.com> wrote:
>>
>>> Yes you got it.
>>> It is exactly that, providing all the objects needed with all the time
>>> steps and just then a list of scene graph for each time step. Then just
>>> switching from one scene to another.
>>>
>>> Seb
>>>
>>>
>>> On Wed, Oct 16, 2013 at 3:57 AM, Paul Graham <meteorpaul at gmail.com>wrote:
>>>
>>>> Hi Seb,
>>>>
>>>> Thanks for your reply.  I have to say the Webgl scene export is
>>>> excellent, even as simple as it is at the present time.  I hope it will be
>>>> developed further.
>>>>
>>>> Unfortunately I cannot see the axes in the exported Webgl scene, though
>>>> they appear in Paraview.
>>>>
>>>> I am still interested in animating the scene and have been delving into
>>>> the code.  As far as I can tell, at least simplistically, I would have to
>>>> update the 'objects' array at regular intervals to get a basic animation.
>>>> My plan is to take the relevant base64 scene files and somehow incorporate
>>>> them into an animation (hopefully!).
>>>>
>>>> Cheers,
>>>>
>>>> Paul
>>>>
>>>>
>>>>
>>>> On 16 October 2013 14:38, Sebastien Jourdain <
>>>> sebastien.jourdain at kitware.com> wrote:
>>>>
>>>>> Hi Paul,
>>>>>
>>>>> the WebGL exporter is very limited and just export basic geometry but
>>>>> the exported scene should reflect what you were seeing in ParaView with no
>>>>> animation or possible customization of the generated scene. The axes should
>>>>> be present though if they were while exporting.
>>>>>
>>>>> Seb
>>>>>
>>>>>
>>>>> On Sun, Oct 13, 2013 at 6:45 AM, Paul Graham <meteorpaul at gmail.com>wrote:
>>>>>
>>>>>> Hi Everyone,
>>>>>>
>>>>>> In creating and exporting a Paraview scene to Webgl, I have been
>>>>>> unable to:
>>>>>>
>>>>>> i) Set opacity
>>>>>> ii) Show axes
>>>>>> iii) Zoom
>>>>>> iv) Animate
>>>>>>
>>>>>> Does anyone know if these features are available in Paraview's Webgl
>>>>>> feature at the present time (Oct 14, 2013) or have I overlooked something
>>>>>> that would enable them?
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Paul
>>>>>>
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>>>>>
>>>>
>>>
>>
>


-- 
Paul Graham
Email: meteorpaul at gmail.com
Mobile: 0403003784
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