[vtkusers] WebGL 3D Viewer Demo

[Sébastien Valette]

Hi Daniel,

XTK seems very nice also! I like the fact that you can just drop some 
.vtk files on a web server and just display them with JavaScript. This 
is IMHO the best strategy.

Greetings from Lyon,

Sebastien

Le 13/01/2012 07:12, Daniel Haehn a écrit :
> Hi guys,
>
> this is all very exciting and looks great!
>
> Also, checkout XTK: http://goXTK.com
>
> For example, with XTK it is possible to display a (ascii) .vtk file
> with the following javascript snippet:
>
> ...
> // create a new renderer
> var r = new X.renderer('r');
> r.init();
>
> // load a .vtk file
> var skull = new X.object();
> skull.load('skull.vtk');
>
> // add the object
> r.add(skull);
>
> // .. and render it
> r.render();
> ...
>
> Cheers,
> Daniel
>
> 2012/1/11 Sébastien Valette<sebastien.valette at creatis.insa-lyon.fr>:
>> Hi Sathish,
>>
>> Le 10/01/2012 09:06, Sathish Kumar a écrit :
>>
>> Hi Sebastien,
>>
>> Nice work. I am very much interested to get some feedback about your
>> experience.
>>
>> Are you splitting the 3D data into multiple files?
>>
>> In our case, the data is just 3 .vtk files parsed by the JavaScript client.
>> One file for the skin, one for the bones and one for the lung.
>>
>>
>> What is the size of 3D data file?
>>
>> quite small in that case : about 200kB
>>
>>
>> Is the 3D constructed at runtime?
>>
>>
>> the 3D scene is constructed by the client, there is no work on the
>> server-side, apart from serving the files. This is the simplest case of use
>> for us.
>>
>> I did not know ParaviewWeb had webGL abilities, but at the moment, it seems
>> rather complex to install and to use. Maybe future releases will improve
>> that?
>>
>>
>> Sebastien
>>
>>
>>
>>
>> Thanks,
>> Sathish
>>
>>
>> On Monday 09 January 2012 07:11 PM, Sébastien Valette wrote:
>>
>> Hi Sathish,
>>
>> interesting webpage! It's good to finally see webGL stuff reaching the VTK
>> ecosystem! We also have developed something in our lab, see:
>>
>> http://www.creatis.insa-lyon.fr/~valette/epaule/
>>
>> it is a primitive simultaneous visualization of IRM slices and extracted
>> parts of bones and lung. We've been doing this ourselves as there was no
>> practical library to do that at that time.
>>
>> Greetings,
>>
>> Sebastien
>>
>>
>> Le 06/01/2012 05:49, Sathish Kumar a écrit :
>>
>> One of the features planned for Oviyam-5 is to view 3D images from a DICOM
>> series and without a plugin using WebGL. We've just taken the first steps
>> towards reaching that goal.
>>
>> A technology preview with pre-rendered images is available at this link. Be
>> patient while loading the 3D models, it may take few minutes to load.
>>
>> Technologies used: VTK, HTML5, WebGL, JSON, Javascript, JS-Unzip...
>>
>> Features:
>> 1. Plugin-Free Design.
>> 2. Supports all major modern browsers like Chrome, Firefox, Safari and
>> Opera.(Use the latest versions available.The best performance is with Chrome
>> and Firefox.
>> 3. Supports IPhone, IPad and Android devices. However, due to the lack of
>> memory, only the cube demo works at present
>> 4. Load upto 36 MB of JSON 3D Data (Supports nearly 150 instances/slices).
>> 5. Zoom In/Out Option.
>> 6. Pan Option.
>> 7. One click Axial, Coronal, Sagittal Views.
>> 8. 2D Rotation.
>> 9. 3D Rotation.
>>
>> Upcoming features:
>> 1. Data Compression(Zip/Unzip) support for faster data transfer.
>> 2. Support for Handheld devices.
>> 3. Look-Up Table to get colour.
>> 4. Support for user-defined models.
>>
>> Source:
>> http://forums.dcm4che.org/jiveforums/thread.jspa?threadID=4233&tstart=0
>>
>> Regards,
>> Sathish
>>
>>
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