STLReader

Live example

Source

import 'vtk.js/Sources/favicon';

import vtkActor from 'vtk.js/Sources/Rendering/Core/Actor';
import vtkFullScreenRenderWindow from 'vtk.js/Sources/Rendering/Misc/FullScreenRenderWindow';
import vtkMapper from 'vtk.js/Sources/Rendering/Core/Mapper';
import vtkSTLReader from 'vtk.js/Sources/IO/Geometry/STLReader';

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

const reader = vtkSTLReader.newInstance();
const mapper = vtkMapper.newInstance({ scalarVisibility: false });
const actor = vtkActor.newInstance();

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

// ----------------------------------------------------------------------------

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

const resetCamera = renderer.resetCamera;
const render = renderWindow.render;

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

// ----------------------------------------------------------------------------
// Use a file reader to load a local file
// ----------------------------------------------------------------------------

const myContainer = document.querySelector('body');
const fileContainer = document.createElement('div');
fileContainer.innerHTML = '<input type="file" class="file"/>';
myContainer.appendChild(fileContainer);

const fileInput = fileContainer.querySelector('input');

function handleFile(event) {
event.preventDefault();
const dataTransfer = event.dataTransfer;
const files = event.target.files || dataTransfer.files;
if (files.length === 1) {
myContainer.removeChild(fileContainer);
const fileReader = new FileReader();
fileReader.onload = function onLoad(e) {
reader.parseAsArrayBuffer(fileReader.result);
update();
};
fileReader.readAsArrayBuffer(files[0]);
}
}

fileInput.addEventListener('change', handleFile);

// ----------------------------------------------------------------------------
// Use the reader to download a file
// ----------------------------------------------------------------------------

// reader.setUrl(`${__BASE_PATH__}/data/stl/segmentation.stl`, { binary: true }).then(update);