BlankPoint

VTKExamples/Java/StructuredGrid/BlankPoint


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Code

BlankPoint.java

import vtk.vtkActor;
import vtk.vtkNamedColors;
import vtk.vtkNativeLibrary;
import vtk.vtkRenderWindow;
import vtk.vtkRenderWindowInteractor;
import vtk.vtkRenderer;
import vtk.vtkStructuredGrid;
import vtk.vtkPoints;
import vtk.vtkDataSetMapper;

public class BlankPoint {

    // -----------------------------------------------------------------
      // 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();

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

        colors.GetColor("Seagreen", Bgcolor);

        // Create a grid
        vtkStructuredGrid structuredGrid = new vtkStructuredGrid();

        vtkPoints points = new vtkPoints();

        int gridSize = 8;
        int counter = 0;
        // Create a 5x5 grid of points
        for( int j = 0; j < gridSize; j++)
        {
          for( int i = 0; i < gridSize; i++)
          {
            if(i == 3 && j == 3) // Make one point higher than the rest
            {
              points.InsertNextPoint(i, j, 2);
              System.out.println("The different point is number " + " " + counter );
            }
            else
            {
              points.InsertNextPoint(i, j, 0); // Make most of the points the same height
            }
            counter++;
          }
        }

        // Specify the dimensions of the grid
        structuredGrid.SetDimensions(gridSize,gridSize,1);

        structuredGrid.SetPoints(points);

        structuredGrid.BlankPoint(27);
        structuredGrid.Modified();

        // Create a mapper and actor
        vtkDataSetMapper gridMapper = new vtkDataSetMapper();
        gridMapper.SetInputData(structuredGrid);

        vtkActor gridActor = new vtkActor();
        gridActor.SetMapper(gridMapper);
        gridActor.GetProperty().EdgeVisibilityOn();
        gridActor.GetProperty().SetEdgeColor(0,0,1);


        // 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);

        // Visualise
        ren.AddActor(gridActor);

        ren.SetBackground(Bgcolor);

        renWin.SetSize(300, 300);
        renWin.Render();

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

}