[vtkusers] problems running a vtk java bindings example

[Henry Blanco]

Hello Sebastien, thanks for your reply. Well, I have done what you
suggested, but still the program does not find the proper native
library, in this case: "libvtkCommonCoreJava.so". 

This library is placed at "/usr/local/natives-Linux-x86_64", and it is
also packed into the jar file "vtk-6.1-natives-Linux-x86_64.jar". The
environment variable $LD_LIBRARY_PATH is set to point to that directory
(as you suggested). Moreover, I have specify those dependencies in my
Eclipse IDE as well. You can check all these evidences attached to this
email as small screenshots.

This is the piece of code that is generating the link error. The linker
stops when processing the statement:
 
System.loadLibrary("libvtkCommonCoreJava");

--------------------
import vtk.*;
public class Cone {

// In the static constructor we load in the native code.
// The libraries must be in your path to work.
static {

//	System.loadLibrary("vtkCommonJava");
//	System.loadLibrary("vtkFilteringJava");
//	System.loadLibrary("vtkIOJava");
//	System.loadLibrary("vtkImagingJava");
//	System.loadLibrary("vtkGraphicsJava");
//	System.loadLibrary("vtkRenderingJava");
			  
	System.loadLibrary("libvtkCommonCoreJava");
	System.loadLibrary("libvtkFiltersCoreJava");
	System.loadLibrary("libvtkIOCoreJava");
	System.loadLibrary("libvtkImagingCoreJava");
	System.loadLibrary("libvtkRenderingCoreJava");
}
...
}// End of the class: Cone

Failing to run such a simple example of this library it's a bit
frustrating for me. I'm looking forward to overcome this issue just to
start learning this attractive visualization library.

Thanks in advance.

Henry
--------------------
On lun, 2015-10-26 at 11:09 -0600, Sebastien Jourdain wrote:
> Hi Henry,
> 
> 
> As you noticed, you will need to unzip
> the  vtk-6.1-natives-Linux-x86_64.jar file into a directory and add
> that directory path to your LD_LIBRARY_PATH environment variable. Then
> the rest, should follow.
> 
> 
> Seb
> 
> On Mon, Oct 26, 2015 at 9:48 AM, Henry Blanco
> <henry.blanco at cbiomed.cu> wrote:
>         Hello guys, I have set up and compiled VTK through cmake on a
>         64-bits
>         Ubuntu 14.04, just to get VTK Java bindings, but I have failed
>         to run a
>         simple "Cone.java" example. Specifically, when I try to
>         execute the
>         statement:
>         
>         System.loadLibrary("vtkCommonJava");
>         
>         The compiler throws the following error:
>         
>         Exception in thread "main" java.lang.UnsatisfiedLinkError: no
>         vtkCommonJava in java.library.path
>                 at
>         java.lang.ClassLoader.loadLibrary(ClassLoader.java:1886)
>                 at java.lang.Runtime.loadLibrary0(Runtime.java:849)
>                 at java.lang.System.loadLibrary(System.java:1088)
>                 at Cone.<clinit>(Cone.java:17)
>         
>         --------------------------------------
>         To specify what my problem is, please, read these comments:
>         
>         1- The VTK compilation process produced the following .jar
>         files (both
>         placed at /usr/local/ directory):
>                 vtk-6.1.jar
>                 vtk-6.1-natives-Linux-x86_64.jar
>         
>         2- The library files "vtkCommonJava.o" is not among those
>         produced by
>         the compilation process.
>         3- The most similar library file to "vtkCommonJava" that I
>         have found is
>         "libvtkCommonCoreJava.o", packed into the jar file
>         "vtk-6.1-natives-Linux-x86_64.jar". I have included this file
>         into the
>         "Java Build Path" of my Eclipse IDE, as well as the jar file
>         "vtk-6.1.jar", but still the program fails to run.
>         
>         I will appreciate any suggestions on what is missing here to
>         run the
>         java example. Thanks in advance.
>         
>         Henry
>         
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