Cast

VTKExamples/Java/Images/Cast


Description

vtkImageCast object filter casts the input type to match the output type in the image processing pipeline.

The filter does nothing if the input already has the correct type. To specify the "CastTo" type, use "SetOutputScalarType" method.

Other Languages

See (Cxx), (Python)

Question

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Code

Cast.java

import vtk.vtkNativeLibrary;
import vtk.vtkRenderWindow;
import vtk.vtkRenderWindowInteractor;
import vtk.vtkRenderer;
import vtk.vtkImageMandelbrotSource;
import vtk.vtkImageCast;
import vtk.vtkImageActor;
import vtk.vtkInteractorStyleImage;

public class Cast
{
  // -----------------------------------------------------------------
  // 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);
  }
  // -----------------------------------------------------------------  

  public static void main(String args[]) 
  {
    //Create a float image
    vtkImageMandelbrotSource source = new vtkImageMandelbrotSource();
    source.Update();

    System.out.println(source.GetOutput().GetScalarTypeAsString());

    vtkImageCast castFilter = new vtkImageCast();
    castFilter.SetInputConnection(source.GetOutputPort());
    castFilter.SetOutputScalarTypeToUnsignedChar();
    castFilter.Update();

    //Create an actor
    vtkImageActor actor = new vtkImageActor();
    actor.GetMapper().SetInputConnection(castFilter.GetOutputPort());

    //Create the renderer, render window and interactor.
    vtkRenderer ren = new vtkRenderer();
    ren.AddActor(actor);
    ren.ResetCamera();

    vtkRenderWindow renWin = new vtkRenderWindow();
    renWin.AddRenderer(ren);

    vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();
    iren.SetRenderWindow(renWin);

    vtkInteractorStyleImage style = new vtkInteractorStyleImage();
    iren.SetInteractorStyle(style);
    iren.SetRenderWindow(renWin);
    renWin.SetSize(300, 300);
    renWin.Render();

    iren.Initialize();
    iren.Start();
  }
}