[vtkusers] message from a friend of mine

[Jim Peterson]

Mark Roden wrote:
> A friend of mine is attempting to build vtk from source with Java 
> wrappers on win64, and encountered some pretty horrendous failures 
> right out of the box. 
>
> Any ideas on what to fix here?  For some reason, he's being blocked 
> from posting on the list.
>
>
>
> ---------- Forwarded message ----------
> From: *Jonathan Morra* <jonmorra at gmail.com <mailto:jonmorra at gmail.com>>
> Date: Wed, Sep 1, 2010 at 9:33 AM
> Subject: VTK Compiling with errors
> To: vtkusers at vtk.org <mailto:vtkusers at vtk.org>
>
>
> I'm attempting to compile VTK from source with the Java wrappers on in 
> 64bit Visual Studios 2008.  I've downloaded version 5.6.0 and ran 
> CMake with the following parameters:
>
> BUILD_SHARED_LIBS
> VTK_USE_N_WAY_ARRAYS
> VTK_USE_RENDERING
> VTK_WRAP_JAVA
> I set all other flags off, also I changed the CMAKE_INSTALL_PREFIX to 
> a directory in My Documents.
>
> The compilation did result in creating vtk.jar and some dlls, however 
> 67 projects compiled successfully and 7 failed.  I tried to make a 
> very simple project in NetBeans 6.9.1 where I added the vtk.jar 
> library and then set the java path with 
> -Djava.library.path="path/to/vtk/dlls" and then had the following Java
>
> import vtk.vtkSphereSource;
> import vtk.vtkPolyDataMapper;
> import vtk.vtkActor;
> import vtk.vtkRenderer;
> import vtk.vtkRenderWindow;
> import vtk.vtkRenderWindowInteractor;
>
> /**
>  *
>  * @author jmorra
>  */
> public class Application {
>
>     static {
>         System.loadLibrary("vtkCommonJava");
>         System.loadLibrary("vtkFilteringJava");
>         System.loadLibrary("vtkIOJava");
>         System.loadLibrary("vtkImagingJava");
>         System.loadLibrary("vtkGraphicsJava");
>         System.loadLibrary("vtkRenderingJava.");
>     }
>
>     public static void main(String[] args) {
>          // create sphere geometry
>         vtkSphereSource sphere = new vtkSphereSource();
>     }
> }
>
> The program threw the following exception on the first 
> System.loadLibrary call
>
> java.lang.UnsatisfiedLinkError: 
> C:\Users\jmorra\Documents\vtk-binaries\bin\Release\vtkCommonJava.dll: 
> Can't find dependent libraries
>
> I ran dependency walker on vtkCommonJava.dll and it didn't look like 
> anything was missing.   This leads me to assume the error is somewhere 
> the projects that failed to compile under VS 2008.
>
> Please let me know what I'm doing wrong or if this is a VTK error.
>
> Thanks,
> Jon
>
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I built and used vtk 5.6.0 on 32bit windows with shared libraries and 
Java wrappers using Visual Studio 2008. taking a quick look at the vtk 
Java wrappers, I am not sure the mechanism for dereferencing object 
pointers between the java wrappers and the shared libraries is 64bit 
capable, the Java wrappers appear to pass a long as a vtk object 
pointer.  The specific error actually looks like the vtk java wrapper 
dll was found, but the corresponding  vtk shared libraries are not in 
the library path.

Hope that helps,

Jim