[vtkusers] VTK and JNI

[Gahide Jérôme]

I think I use the wrapper when I create VTK object with java. I import vtk.*
and I do as it shown in the Cone example.
But when I need to show the result on a special device, I have to use C++ to
communicate with the device. In this case, I want to get back some
vtkInforlation.

----
vtk | --- import vtk.* --- Java  --------  send the result(vtkActor) to c++
drivers ------- BigScreen
----                                   |
                                     compute a vtkActor

Maybe I do not anderstand what you call the java wrapper?

jérôme.

----- Original Message ----- 
From: "Jeff Lee" <jeff at cdnorthamerica.com>
To: "Gahide Jérôme" <gahidej at libertysurf.fr>
Cc: <vtkusers at vtk.org>
Sent: Tuesday, February 24, 2004 5:08 PM
Subject: Re: [vtkusers] VTK and JNI


> any reason you're not using the java wrappers?
> -Jeff
>
> Gahide Jérôme wrote:
>
> > Hi everybody,
> >
> > I have a Java application that use VTK. This appliaction create all
> > the VTK objects we need.
> > After the application create the object, I have to pass an vtkActor to
> > C++ using JNI (in order to print the render on a special big screen).
> > For now, I have learned with some tutorials JNI and in order to
> > anderstand how to get back the C++ pointer on a vtkActor, I have
> > looked for the header file and the cxx that make the link beetween
> > Java and C++ but I don't find them.
> >
> > So the question are :
> > - How can I get back the the C++ pointer on the vtkActor from the
> > jobject I have, when I program with JNI.
> >
> >     example :
> >     java file.
> >     import vtk.*;
> >     ...
> >     private vtkActor va;
> >     public native void getJNIvtkActor();
> >
> >     cxx file .
> >     JNIEXPORT void ...(JNIEnv* env, jobject obj){
> >
> >         what can I do here to work with my vtkActor? and not a jobject
> >
> >
> >     }
> >
> > - Where can I find this file (.h .cxx) where Wrapping with Java is
> > defined. (with JNI?).
> >
> > Thanks a lot.
> > Jérôme.
>
>