[vtkusers] Using vtkStructuredGrid using the java API

[Stephane Pierret]

Hi,

I’m trying to use vtkStructuredGrid to display a structured grid using the java API. However, I do not succeed in getting the view of the grid.

Here is the sample code I’m using. Could you let me know what is wrong or missing?

BR,

Stéphane
		System.out.println("vtkPoints");
		vtkPoints points = new vtkPoints();
		points.InsertNextPoint(0.0, 0.0, 0.0);
		points.InsertNextPoint(1.0, 0.0, 0.0);
		points.InsertNextPoint(2.0, 0.0, 0.0);
		points.InsertNextPoint(0.0, 1.0, 0.0);
		points.InsertNextPoint(1.0, 1.0, 0.0);
		points.InsertNextPoint(2.0, 1.0, 0.0);
		points.InsertNextPoint(0.0, 0.0, 1.0);
		points.InsertNextPoint(1.0, 0.0, 1.0);
		points.InsertNextPoint(2.0, 0.0, 1.0);
		points.InsertNextPoint(0.0, 1.0, 1.0);
		points.InsertNextPoint(1.0, 1.0, 1.0);
		points.InsertNextPoint(2.0, 1.0, 1.0);
		
		System.out.println ("vtkStructuredGrid");
		vtkStructuredGrid sGrid = new vtkStructuredGrid ();
		sGrid.SetDimensions(3,2,2);
		sGrid.SetPoints(points);
		
		int cellDims[] = new int[3];
		sGrid.GetCellDims( cellDims );
		System.out.println ("Cell dims = " + cellDims[0] + ", " + cellDims[1] + ", " + cellDims[2]);
		System.out.println ("sGrid.GetNumberOfPoints() = " + sGrid.GetNumberOfPoints());
		System.out.println ("sGrid.GetNumberOfCells () = " + sGrid.GetNumberOfCells());
		
		// outline
  		vtkStructuredGridOutlineFilter of = new vtkStructuredGridOutlineFilter();
  		of.SetInputData(sGrid);
  		
  		vtkCompositeDataGeometryFilter geom1 = new vtkCompositeDataGeometryFilter();
  		geom1.SetInputConnection(0, of.GetOutputPort(0));
  		
  	    vtkPolyDataMapper sgridMapper = new vtkPolyDataMapper();
  	    sgridMapper.SetInputConnection(0, geom1.GetOutputPort(0));
  		
		vtkActor actor = new vtkActor();
  	    actor.SetMapper(sgridMapper);
  	    actor.GetProperty().SetColor(0,0,0);
  	    
		// Create a renderer, render window, and interactor
  		vtkRenderWindow renderWindow = new vtkRenderWindow();
		
		vtkRenderer renderer = new vtkRenderer();
		renderer.SetBackground2(0,1,1);
		renderer.SetGradientBackground(true);
		renderer.AddActor(actor);
	  
		renderWindow.AddRenderer(renderer);
		
		vtkRenderWindowInteractor renderWindowInteractor = new vtkRenderWindowInteractor();
		renderWindowInteractor.SetRenderWindow(renderWindow);
		 
		// Add the actor to the scene
		renderer.AddActor(actor);
		renderer.SetBackground(.1, .2, .3);
		 
		// Render and interact
		renderWindow.Render();
		renderWindowInteractor.Start();