[vtkusers] VTK6 and Java Examples

[Gerrick Bivins]

HA!
Yes, those are out of date BUT I believe you'll have more luck looking here:
{VTK_SOURCE_HOME}\VTK6.0.0\Wrapping\Java\vtk\sample

And here:
http://www.vtk.org/Wiki/VTK/Java_Wrapping


Gerrick
From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf Of Ric Wright
Sent: Monday, August 05, 2013 7:02 AM
To: vtkusers at vtk.org
Subject: [vtkusers] VTK6 and Java Examples

I recently pulled down VTK 6.0.0 and installed it.  Getting it running provided to be a little more fun than I anticipated but I got there (http://blogs.geofx.com/).

However, part of my confusion arose from what I believe is out of date tutorials.  In the first Java tutorial, the first part pf the example has a  "load library" method:

// 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");
}

  This doesn't work with VTK 6.0.0.  Instead, one gets an exception

  java.lang.UnsatisfiedLinkError: no vtkCommonJava in java.library.path

  This turns out to be reasonable as there is no vtkCommonJava library in the lib folder.

  In the example Cone2.java, the loading of libraries is significantly different:

       // Load VTK library and print which library was not properly loaded
       static
       {
      if (!vtkNativeLibrary.LoadAllNativeLibraries())
            {
                  for (vtkNativeLibrary lib : vtkNativeLibrary.values())
                  {
                        if (!lib.IsLoaded())
                        {
                              System.out.println(lib.GetLibraryName() + " not loaded");
                        }
                  }
            }
            vtkNativeLibrary.DisableOutputWindow(null);
      }

This works fine.  As it turns out, only the example Cone2.java uses the "correct" method for loading the libraries.  Am I correct in assuming that Cone 1 and Cone3-5 are simply out-of-date with respect to VTK 6.0.0?  Or am I missing something?

I also note that only the simple "Sample" folder with its Cone examples even has Java implementations.  I guess I am on my own to convert the examples to Java myself (which is fine, that will be a good learning exercise) or will that be a Quixotic effort on my part, tilting at an incomplete Java windmill?

TIA,
Ric

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