[Paraview] No rendering in ParaviewWeb with javascript
Sebastien Jourdain
sebastien.jourdain at kitware.com
Fri Nov 2 09:17:33 EDT 2012
Hi Sumit,
That's great that you figured that out.That part is handle by jabsorb on
ParaViewWeb server side but you might not be able to do anything about the
way it handle "[]" compare to [].
The jabsorb library automatically try to map some Java class/method to the
given json rpc request that it get.
So it might be easier to just fix the request on the client side the way
you did.
Seb
On Thu, Nov 1, 2012 at 9:36 PM, Purohit, Sumit <Sumit.Purohit at pnnl.gov>wrote:
> Hi Seb,
>
> I think there is an issue with the way Prototyp library construct JSON
> Vs how PraviewWeb uses it??.
> As for some reason when I call JSON.stringify() in the
> paraview.js::executeRemote() method, it returns json object with double
> quotes around it.
> It is a valid JSON structure but
> paraviewInstance.jsonRpcClient.VisualizationsManager does not support it.
>
> I tried using browser's native toJSON mathod and it worked.
> for that in paraview.js i added :
> if(window.Prototype) {
> delete Array.prototype.toJSON;
> }
>
> before code :
> var reply_string =
> paraviewInstance.jsonRpcClient.VisualizationsManager.invoke(
> paraviewInstance.sessionId,
> JSON.stringify(JsonRpcObjectBuilder(methodName,
> methodArguments)));
>
>
> in function executeRemote( paraviewInstance, methodName, methodArguments )
> {..............
>
> and it worked. got clue from here :
> http://stackoverflow.com/questions/710586/json-stringify-bizarreness
>
>
> Ideally \"params\":\"[]\" should work as it is Valid JSON.
> where can i find code for VisualizationsManager.invoke() method so that i
> can see how is it using input parameters ?
>
> Thanks
> Sumit Purohit
>
> ________________________________________
> From: Sebastien Jourdain [sebastien.jourdain at kitware.com]
> Sent: Monday, October 29, 2012 6:27 AM
> To: Purohit, Sumit
> Cc: paraview at paraview.org
> Subject: Re: [Paraview] No rendering in ParaviewWeb with javascript
>
> Hi Sumit,
>
> the bug seems to be related to the content of that method
>
> /*
> * Helper method used to simplify the construction of JsonRPC objects
> */
> function JsonRpcObjectBuilder( methodName, methodArguments ) {
> var args = [];
> if(typeof(methodArguments) != "undefined") {
> if(typeof(methodArguments) != "object") {
> args = [ methodArguments ];
> } else {
> args = methodArguments;
> }
> }
> return {
> id : 1,
> method : methodName,
> params : args
> };
> }
>
> inside the file WebServer/PWService/web/js/dev/paraview.js which you
> can point to in your testing process instead of its parent compressed
> one ParaViewWeb.js. Although, don't forget to add /dev/json2.js and
> /dev/jsonrpc.js too when you are using the development version of the
> js.
>
> Once you figured out, what need to be done to prevent those extra "
> around [] then you can either send me the full paraview.js or just the
> diff so I can patch and update the ParaViewWeb repository.
>
> Thanks for your help,
>
> Seb
>
> On Fri, Oct 26, 2012 at 2:05 PM, Purohit, Sumit <Sumit.Purohit at pnnl.gov>
> wrote:
> > Thank Seb for the reply,
> >
> > 1. Yes, i am using exactly the same javascript in both the contexts.
> > 2. I tried your suggestion of using iframe and I AM ABLE TO EMBEDDED
> the functional html page into my non-functional page and visualize it.
> >
> > Can you suggest me where/what to make a patch in ParaViewWeb javascript
> as using iframe is not a "solution" for me. I want to dynamically create
> this visualization.
> >
> >
> > Thanks
> > Sumit
> >
> > ________________________________________
> > From: Sebastien Jourdain [sebastien.jourdain at kitware.com]
> > Sent: Friday, October 26, 2012 3:48 AM
> > To: Purohit, Sumit
> > Cc: paraview at paraview.org
> > Subject: Re: [Paraview] No rendering in ParaviewWeb with javascript
> >
> > Hum...
> >
> > I guess it is exactly the same JavaScript code that you execute in both
> context.
> > To me it seems to be a bug in the way the ParaViewWeb javascript is
> behaving.
> >
> > But in the mean time, do you try to embed the 3D renderer in an iFrame
> > or do you properly embed it into the current HTML document ? Because,
> > if you were planing to use some iFrame, the ParaViewWeb javascript
> > part could be done in that iFrame page and that might work as is...
> > (At least as a first step)
> >
> > A third solution, could also be to patch ParaViewWeb javascript so it
> > could properly work in your context or depending on how complex your
> > web application is going to be, create an ad-hoc JavaScript library
> > that will make only the call you need and the way you want.
> >
> > Hope my comments helped you,
> >
> > Thanks,
> >
> > Seb
> >
> >
> > On Thu, Oct 25, 2012 at 4:48 PM, Purohit, Sumit <Sumit.Purohit at pnnl.gov>
> wrote:
> >> Thanks Seb,
> >>
> >> I realized that i was running my html page under Apache but it was not
> properly configured to talk to paraviweWeb which is under. tomcat. I Fixed
> that and i worked fine. Thanks
> >>
> >> My goal is to add this code under a Mediawiki Page and run it on a
> button click BUT when i do that i get "uncaught exception: get_module()
> takes no arguments (2 given). Paraview.js line 231"
> >>
> >> I see one deference in the way internal paraviewWeb POST calls are made.
> >>
> >> 1. When running outside Mediawiki (This Works) :
> >>
> {id:3,method:"VisualizationsManager.invoke",params:["87095ed9081c5fc32c76f43105d74c32-28",
> "{\"id\":1,\"method\":\"get_module\",\"params\":[]}"]}
> >>
> >> 2. Within MW ( This gives above exception)
> >>
> {id:3,method:"VisualizationsManager.invoke",params:["87095ed9081c5fc32c76f43105d74c32-27",
> "{\"id\":1,\"method\":\"get_module\",\"params\":\"[]\"}"]}
> >>
> >> the difference is how empty param are specified in both the POST
> requests. [] Vs. \"[]\"
> >>
> >> Both are made internally by ParaViewWeb, so do you think i can control
> this in my javascript ( actually jQuery) code ?? OR on ParaviewWeb
> code/config side ??
> >>
> >>
> >> Thanks
> >> Sumit Purohit
> >>
> >>
> >>
> >> ________________________________________
> >> From: Sebastien Jourdain [sebastien.jourdain at kitware.com]
> >> Sent: Wednesday, October 24, 2012 4:33 AM
> >> To: Purohit, Sumit
> >> Cc: paraview at paraview.org
> >> Subject: Re: [Paraview] No rendering in ParaviewWeb with javascript
> >>
> >> Try to move the script section between </table> and </body> . Moreover
> does the other applications let you properly see 3d content?
> >>
> >> Seb
> >>
> >> On Oct 23, 2012, at 4:08 PM, "Purohit, Sumit" <Sumit.Purohit at pnnl.gov>
> wrote:
> >>
> >>> Hi Everyone,
> >>>
> >>> I am a newbie (and this is a cliche ) in paraview and trying to run
> ParaViewWeb using javascript rendering.
> >>> I installed the Paraview Web and i can access various webapps Ex :
> >>>
> >>> http://localhost:8180/PWApp/index.jsp
> >>> http://localhost:8180/PWService/
> >>>
> >>> [ i installed ParaviewWeb on port 8180]
> >>>
> >>> As a next step i am tried to use its javascript rendering but could
> not see any thing on the page.
> >>> JavaScript console shows "Error: Connection failed" in line 116
> ParaviewWeb.js
> >>>
> >>> Here is my complete HTML
> >>> <html>
> >>> <head>
> >>> <script type="text/javascript" src="
> http://localhost:8180/PWService/js/ParaViewWeb.js"></script>
> >>> </head>
> >>> <body>
> >>> <table width='100%'>
> >>> <tr>
> >>> <td>Viewport title</td>
> >>> </tr>
> >>> <tr>
> >>> <td id='renderer-container-id'>
> >>> <!-- The renderer will be inserted here -->
> >>>
> >>> <script type="text/javascript">
> >>> // Set the web service base URL
> >>> var serverUrl = "http://localhost:8180/PWService";
> >>>
> >>> //
> >>> // Create a paraview proxy
> >>> //
> >>> var paraview = new Paraview(serverUrl);
> >>> paraview.createSession("Session name", "Session comment",
> "default");
> >>>
> >>> var activeView = paraview.CreateIfNeededRenderView();
> >>>
> >>> // Create and bind renderer
> >>> var renderer = new JavaScriptRenderer("rendererName",
> serverUrl);
> >>> renderer.init(paraview.sessionId, activeView.__selfid__);
> >>> renderer.setSize('200','200');
> >>> renderer.bindToElementId("renderer-container-id");
> >>> renderer.start();
> >>> </script>
> >>> </td>
> >>> </tr>
> >>> </table>
> >>> </body>
> >>> </html>
> >>>
> >>> Thank you for the help.
> >>> Sumit Purohit
> >>> _______________________________________________
> >>> Powered by www.kitware.com
> >>>
> >>> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
> >>>
> >>> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
> >>>
> >>> Follow this link to subscribe/unsubscribe:
> >>> http://www.paraview.org/mailman/listinfo/paraview
>
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