@acransac/vtk.js/Sources/Interaction/Manipulators/KeyboardCameraManipulator/example/index.js

Visualization Toolkit for the Web

import 'vtk.js/Sources/favicon';

import vtkActor from 'vtk.js/Sources/Rendering/Core/Actor';
import vtkElevationReader from 'vtk.js/Sources/IO/Misc/ElevationReader';
import vtkFullScreenRenderWindow from 'vtk.js/Sources/Rendering/Misc/FullScreenRenderWindow';
import vtkInteractorStyleManipulator from 'vtk.js/Sources/Interaction/Style/InteractorStyleManipulator';
import vtkMapper from 'vtk.js/Sources/Rendering/Core/Mapper';
import vtkTexture from 'vtk.js/Sources/Rendering/Core/Texture';

import Manipulators from 'vtk.js/Sources/Interaction/Manipulators';

// ----------------------------------------------------------------------------
// Standard rendering code setup
// ----------------------------------------------------------------------------

const fullScreenRenderer = vtkFullScreenRenderWindow.newInstance();
const renderer = fullScreenRenderer.getRenderer();
const renderWindow = fullScreenRenderer.getRenderWindow();

// ----------------------------------------------------------------------------
// Example code
// ----------------------------------------------------------------------------

const reader = vtkElevationReader.newInstance({
  xSpacing: 0.01568,
  ySpacing: 0.01568,
  zScaling: 0.06666,
});
const mapper = vtkMapper.newInstance();
const actor = vtkActor.newInstance();

mapper.setInputConnection(reader.getOutputPort());
actor.setMapper(mapper);

// Download and apply Texture
const img = new Image();
img.onload = function textureLoaded() {
  const texture = vtkTexture.newInstance();
  texture.setInterpolate(true);
  texture.setImage(img);
  actor.addTexture(texture);
  renderWindow.render();
};
img.src = `${__BASE_PATH__}/data/elevation/dem.jpg`;

// The default camera is just a nice starting point...
const defaultFocalPoint = [
  1.9991999864578247,
  -2.007040023803711,
  0.15954573452472687,
];

const defaultPosition = [
  4.109420299530029,
  -3.632676601409912,
  0.3706766664981842,
];

const defaultViewUp = [0, 0, 1];

const camera = renderer.getActiveCamera();

// Download elevation and render when ready
reader.setUrl(`${__BASE_PATH__}/data/elevation/dem.csv`).then(() => {
  camera.setFocalPoint(...defaultFocalPoint);
  camera.setPosition(...defaultPosition);
  camera.setViewUp(...defaultViewUp);

  renderer.resetCameraClippingRange();
  renderWindow.render();
});

const keyboardManipulator = Manipulators.vtkKeyboardCameraManipulator.newInstance(
  { movementSpeed: 0.02 }
);
const mouseManipulator = Manipulators.vtkMouseCameraTrackballFirstPersonManipulator.newInstance();

const iStyle = vtkInteractorStyleManipulator.newInstance();
iStyle.addKeyboardManipulator(keyboardManipulator);
iStyle.addMouseManipulator(mouseManipulator);
renderWindow.getInteractor().setInteractorStyle(iStyle);

renderer.addActor(actor);
renderer.resetCamera();
renderWindow.render();

// -----------------------------------------------------------
// Make some variables global so that you can inspect and
// modify objects in your browser's developer console:
// -----------------------------------------------------------

global.actor = actor;
global.camera = camera;
global.mapper = mapper;
global.renderer = renderer;
global.renderWindow = renderWindow;