import vtkActor                  from 'vtk.js/Sources/Rendering/Core/Actor';
import vtkConeSource             from 'vtk.js/Sources/Filters/Sources/ConeSource';
import vtkMapper                 from 'vtk.js/Sources/Rendering/Core/Mapper';
import vtkOpenGLRenderWindow     from 'vtk.js/Sources/Rendering/OpenGL/RenderWindow';
import vtkRenderWindow           from 'vtk.js/Sources/Rendering/Core/RenderWindow';
import vtkRenderWindowInteractor from 'vtk.js/Sources/Rendering/Core/RenderWindowInteractor';
import vtkRenderer               from 'vtk.js/Sources/Rendering/Core/Renderer';
// ----------------------------------------------------------------------------
// Standard rendering code setup
// ----------------------------------------------------------------------------
const renderWindow = vtkRenderWindow.newInstance();
const renderer = vtkRenderer.newInstance({ background: [0.2, 0.3, 0.4] });
renderWindow.addRenderer(renderer);
// ----------------------------------------------------------------------------
// Simple pipeline ConeSource --> Mapper --> Actor
// ----------------------------------------------------------------------------
const coneSource = vtkConeSource.newInstance({ height: 1.0 });
const mapper = vtkMapper.newInstance();
mapper.setInputConnection(coneSource.getOutputPort());
const actor = vtkActor.newInstance();
actor.setMapper(mapper);
// ----------------------------------------------------------------------------
// Add the actor to the renderer and set the camera based on it
// ----------------------------------------------------------------------------
renderer.addActor(actor);
renderer.resetCamera();
// ----------------------------------------------------------------------------
// Use OpenGL as the backend to view the all this
// ----------------------------------------------------------------------------
const openglRenderWindow = vtkOpenGLRenderWindow.newInstance();
renderWindow.addView(openglRenderWindow);
// ----------------------------------------------------------------------------
// Create a div section to put this into
// ----------------------------------------------------------------------------
const container = document.createElement('div');
document.querySelector('body').appendChild(container);
openglRenderWindow.setContainer(container);
// ----------------------------------------------------------------------------
// Setup an interactor to handle mouse events
// ----------------------------------------------------------------------------
const interactor = vtkRenderWindowInteractor.newInstance();
interactor.setView(openglRenderWindow);
interactor.initialize();
interactor.bindEvents(container);