OrientedGlyphs

VTKExamples/Java/Visualization/OrientedGlyphs


Description

vtkGlyph3D object is a filter that copies a geometric representation (called a glyph) to every point in the input dataset.

The glyph is defined with polygonal data from a source filter input and it may be oriented along the input vectors or normals, and it may be scaled according to scalar data or vector magnitude.

Other Languages

See (Cxx), (Python)

Question

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Code

OrientedGlyphs.java

import vtk.vtkActor;
import vtk.vtkSphereSource;
import vtk.vtkNativeLibrary;
import vtk.vtkPolyData;
import vtk.vtkPolyDataMapper;
import vtk.vtkArrowSource;
import vtk.vtkGlyph3D;
import vtk.vtkRenderWindow;
import vtk.vtkRenderWindowInteractor;
import vtk.vtkRenderer;
import vtk.vtkNamedColors;

public class OrientedGlyphs
{
  // -----------------------------------------------------------------
  // 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 s[]) 
  {                 

    vtkNamedColors colors = new vtkNamedColors();

    //For Actor Color
    double actorColor[] = new double[4];

    //Renderer Background Color
    double Bgcolor[] = new double[4];

    colors.GetColor("Teal", actorColor);
    colors.GetColor("Khaki", Bgcolor);

    //Create a Sphere
    vtkSphereSource Sphere = new vtkSphereSource();
    Sphere.Update();

    //Create a Mapper and Actor
    vtkPolyData Input = new vtkPolyData();
    Input.ShallowCopy(Sphere.GetOutput());

    vtkArrowSource ArrowSource = new vtkArrowSource();

    vtkGlyph3D Glyph3D = new vtkGlyph3D();
    Glyph3D.SetSourceConnection(ArrowSource.GetOutputPort());
    Glyph3D.SetInputData(Input);
    Glyph3D.SetScaleFactor(0.2);
    Glyph3D.Update();

    // Visualize
    vtkPolyDataMapper Mapper = new vtkPolyDataMapper();
    Mapper.SetInputConnection(Glyph3D.GetOutputPort());

    vtkActor Actor = new vtkActor();
    Actor.SetMapper(Mapper);
    Actor.GetProperty().SetColor(actorColor);

    // Create the renderer, render window and interactor.
    vtkRenderer ren = new vtkRenderer();
    vtkRenderWindow renWin = new vtkRenderWindow();
    renWin.AddRenderer(ren);
    vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();
    iren.SetRenderWindow(renWin);

    ren.AddActor(Actor);
    ren.SetBackground(Bgcolor);

    renWin.Render();
    iren.Start();

  }       
}