TransformPolyData
vtk-examples/Java/Filtering/TransformPolyData
Description¶
vtkTransformPolyDataFilter object is a filter to transform point coordinates and associated point and cell normals and vectors. This filter is specialized for polygonal data.
Question
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Code¶
TransformPolyData.java
import vtk.vtkRenderWindow;
import vtk.vtkActor;
import vtk.vtkNativeLibrary;
import vtk.vtkPolyDataMapper;
import vtk.vtkNamedColors;
import vtk.vtkRenderer;
import vtk.vtkRenderWindowInteractor;
import vtk.vtkSphereSource;
import vtk.vtkTransform;
import vtk.vtkTransformPolyDataFilter;
public class TransformPolyData
{
//-----------------------------------------------------------------
// 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[])
{
vtkNamedColors colors = new vtkNamedColors();
//For OriginalActor Color
double OriginalActorColor[] = new double[4];
//Renderer Background Color
double Bgcolor[] = new double[4];
//TransformedActor color
double TransformedActorColor[] = new double[4];
colors.GetColor("LightSeaGreen", OriginalActorColor);
colors.GetColor("Sienna", Bgcolor);
colors.GetColor("DeepSkyBlue", TransformedActorColor);
//Create a Sphere
vtkSphereSource Sphere = new vtkSphereSource();
Sphere.Update();
//Create a Mapper and Actor
vtkPolyDataMapper OriginalMapper = new vtkPolyDataMapper();
OriginalMapper.SetInputConnection(Sphere.GetOutputPort());
vtkActor OriginalActor = new vtkActor();
OriginalActor.SetMapper(OriginalMapper);
OriginalActor.GetProperty().SetColor(OriginalActorColor);
//Set up the transform filter
vtkTransform Translation = new vtkTransform();
Translation.Translate(1.0, 2.0, 3.0);
vtkTransformPolyDataFilter TransformFilter = new vtkTransformPolyDataFilter();
TransformFilter.SetInputConnection(Sphere.GetOutputPort());
TransformFilter.SetTransform(Translation);
TransformFilter.Update();
//Set up the actor to display the transformed polydata
vtkPolyDataMapper TransformedMapper = new vtkPolyDataMapper();
TransformedMapper.SetInputConnection(TransformFilter.GetOutputPort());
vtkActor TransformedActor = new vtkActor();
TransformedActor.SetMapper(TransformedMapper);
TransformedActor.GetProperty().SetColor(TransformedActorColor);
//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);
// Visualize the Actor
ren.AddActor(OriginalActor);
ren.AddActor(TransformedActor);
ren.SetBackground(Bgcolor);
renWin.SetSize(300, 300);
renWin.Render();
iren.Initialize();
iren.Start();
}
}