[Paraview] Regarding Paraview Web Visualization

[Sebastien Jourdain]

Hi Sudhir,

I'm glad you managed to deploy successfully ParaViewWeb specially with
the latest version of activemq-cpp.
Regarding your issue I have an idea, but I might need also some more
feedback from you.

First of all, what kind of data did you tried to render ? Did you
used, one of our sample application ? (PWApp ?)
During the configuration with CMake, what value did you set for the
path to the webgl javascript file ? (Sometime the automatic detection
doesn't seems to work properly.)

If you used you own application, you need to tell the server that it
should also generate a WebGL data structure.

Just let me know more about what you are doing so I could figure out
what is happening here.

Seb

On Tue, Aug 23, 2011 at 9:35 PM, Marcus D. Hanwell
<marcus.hanwell at kitware.com> wrote:
> On Tue, Aug 23, 2011 at 1:06 PM,  <spathak at ibrainovative.com> wrote:
>> Dear Dr. Hanwell,
>> How are you? I am writing you regarding installation of Paraview Web
>> software.
>> We trying to use the current version of Paraview Web software to Visualize
>> some Medical data. We used guideline described on the Wiki page. It compiles
>> fine and
>> we can view data in 3D except for WebGL option. When we select WebGL options
>> it
>> gives following error:
>> =============================================================
>> SEVERE: Servlet.service() for servlet WebGL threw exception
>> java.lang.NullPointerException
>> at org.apache.catalina.connector.CoyoteWriter.write(CoyoteWriter.java:171)
>> =============================================================
>> A detailed version of logs are attached. We are using Ubuntu 11.04 OS.
>> Here are the software version we used to compile and deploy ParaviewWeb:
>> * Current version of Paraview (3.11.1 64-bit).
>> * active-cpp-3.4.0
>> * apache-tomcat-6.0.33, flex3, qooxdoo-1.5-sdk and gwt-2.0.3.
>> * ParaviewWeb library
>> We followed all steps to setup as described
>> at http://www.itk.org/Wiki/ParaViewWeb_Building.
>> I will really appreciate if you can provide some insight on error.
>> Or, If you can provide contact information to whom I can contact regarding
>> this issue.
>> Sudhir Pathak,
>> iBrainovative, Inc
>>
> Hi Sudhir,
>
> I would suggest asking Sebastien in the first instance as he is
> responsible for a large portion of the development of ParaView Web.
> Both of us monitor the VTK user list where your questions are likely
> to be seen and answered by a wider cross section of the community.
>
> Hopefully Sebastien will have a better idea about how to fix the error
> you are seeing.
>
> Best wishes,
>
> Marcus
> --
> Marcus D. Hanwell, Ph.D.
> R&D Engineer, Kitware Inc.
> (518) 881-4937
>