final String diagramTypeId = "test.graphiti.nonemf.diagram";
			
			final Diagram diagram = Graphiti.getPeCreateService()
					.createDiagram(diagramTypeId,
							"test.graphiti.nonemf.diagram.DiagramType", false);

			final String editorID = NonEmfDiagramEditor.DIAGRAM_EDITOR_ID;

			IFile diagramFile = project.getFile("Test" + "." + "diagram");

			URI uri = URI.createPlatformResourceURI(diagramFile.getFullPath()
					.toString(), true);

			TransactionalEditingDomain editingDomain = FileService
					.createEmfFileForDiagram(uri, diagram);
			String providerId = "test.graphiti.nonemf.diagram.DiagramTypeProvider";
			DiagramEditorInput editorInput = new DiagramEditorInput(
					EcoreUtil.getURI(diagram), editingDomain, providerId, true);

			PlatformUI.getWorkbench().getActiveWorkbenchWindow()
					.getActivePage().openEditor(editorInput, editorID);

private void createExampleStructure(final IDiagramTypeProvider ddtp,
			final TransactionalEditingDomain editingDomain,
			final Diagram diagram, DomainObject domainObject) {

		int x = 20;
		int y = 20;

		AddContext addcontext = new AddContext();
		IFeatureProvider featureprovider = ddtp.getFeatureProvider();

		AddVariableFeature addFvFeature = new AddVariableFeature(
				featureprovider);

		addcontext.setNewObject(domainObject);
		addcontext.setTargetContainer(diagram);

		addcontext.setX(x);
		addcontext.setY(y);

		if (addFvFeature.canAdd(addcontext)) {
			addFvFeature.add(addcontext);
		}

	}