[vtkusers] what's wrong about this? vtk java.lang.UnsatisfiedLinkError

[steelblue]

the wrongs:
Exception in thread "main" java.lang.UnsatisfiedLinkError:
vtk.vtkObjectBase.VTKDeleteReference(J)V
	at vtk.vtkObjectBase.VTKDeleteReference(Native Method)
	at vtk.vtkPolyDataAlgorithm.GetOutput(vtkPolyDataAlgorithm.java:38)
	at xs.vtk.HelloVTK.<init>(HelloVTK.java:16)
	at xs.vtk.HelloVTK.main(HelloVTK.java:27)

the code:
package xs.vtk;

// This example creates a polygonal model of a cone, and then renders it to

// the screen. It will rotate the cone 360 degrees and then exit. The basic

// setup of source -> mapper -> actor -> renderer -> renderwindow is 

// typical of most VTK programs.

//



// We import the vtk wrapped classes first.

import vtk.*;



// Then we define our class.

public class Cone {



  // In the static contructor 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"); 

  }



  // now the main program

  public static void main (String []args) {

    // 

    // Next we create an instance of vtkConeSource and set some of its

    // properties. The instance of vtkConeSource "cone" is part of a

    // visualization pipeline (it is a source process object); it produces
data

    // (output type is vtkPolyData) which other filters may process.

    //

    vtkConeSource cone = new vtkConeSource();

    cone.SetHeight( 3.0 );

    cone.SetRadius( 1.0 );

    cone.SetResolution( 10 );

  

    // 

    // In this example we terminate the pipeline with a mapper process
object.

    // (Intermediate filters such as vtkShrinkPolyData could be inserted in

    // between the source and the mapper.)  We create an instance of

    // vtkPolyDataMapper to map the polygonal data into graphics primitives.
We

    // connect the output of the cone souece to the input of this mapper.

    //

    vtkPolyDataMapper coneMapper = new vtkPolyDataMapper();

    coneMapper.SetInputConnection( cone.GetOutputPort() );



    // 

    // Create an actor to represent the cone. The actor orchestrates
rendering

    // of the mapper's graphics primitives. An actor also refers to
properties

    // via a vtkProperty instance, and includes an internal transformation

    // matrix. We set this actor's mapper to be coneMapper which we created

    // above.

    //

    vtkActor coneActor = new vtkActor();

    coneActor.SetMapper( coneMapper );



    //

    // Create the Renderer and assign actors to it. A renderer is like a

    // viewport. It is part or all of a window on the screen and it is

    // responsible for drawing the actors it has.  We also set the
background

    // color here

    //

    vtkRenderer ren1 = new vtkRenderer();

    ren1.AddActor( coneActor );

    ren1.SetBackground( 0.1, 0.2, 0.4 );



    //

    // Finally we create the render window which will show up on the screen

    // We put our renderer into the render window using AddRenderer. We also

    // set the size to be 300 pixels by 300

    //

    vtkRenderWindow renWin = new vtkRenderWindow();

    renWin.AddRenderer( ren1 );

    renWin.SetSize( 300, 300 );

    

    //

    // now we loop over 360 degreeees and render the cone each time

    //

    int i;

    for (i = 0; i < 360; ++i)

      {

      // render the image

      renWin.Render();

      // rotate the active camera by one degree

      ren1.GetActiveCamera().Azimuth( 1 );

      }

  

    } 

}



can anyone tell me how to solve this problem? waiting,,.
thanks,.

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