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186 | import * as THREE from '/build/three.module.js'
import { OrbitControls } from '/jsm/controls/OrbitControls'
import { GLTFLoader } from '/jsm/loaders/GLTFLoader'
import Stats from '/jsm/libs/stats.module'
import { CSS2DRenderer, CSS2DObject } from '/jsm/renderers/CSS2DRenderer';
const scene: THREE.Scene = new THREE.Scene()
var light = new THREE.SpotLight()
light.position.set(12.5, 12.5, 12.5)
light.castShadow = true
light.shadow.mapSize.width = 1024;
light.shadow.mapSize.height = 1024;
scene.add(light)
const camera: THREE.PerspectiveCamera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000)
camera.position.x = 15
camera.position.y = 15
camera.position.z = 15
const renderer: THREE.WebGLRenderer = new THREE.WebGLRenderer()
renderer.shadowMap.enabled = true
renderer.outputEncoding = THREE.sRGBEncoding
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
const labelRenderer = new CSS2DRenderer()
labelRenderer.setSize(window.innerWidth, window.innerHeight)
labelRenderer.domElement.style.position = 'absolute'
labelRenderer.domElement.style.top = '0px'
labelRenderer.domElement.style.pointerEvents = 'none'
document.body.appendChild(labelRenderer.domElement)
const controls = new OrbitControls(camera, renderer.domElement)
controls.enableDamping = true
const pickableObjects: THREE.Mesh[] = new Array()
const loader = new GLTFLoader()
loader.load(
'models/simplescene.glb',
function (gltf) {
gltf.scene.traverse(function (child) {
if ((<THREE.Mesh>child).isMesh) {
let m = <THREE.Mesh>child
switch (m.name) {
case "Plane":
m.receiveShadow = true
break
default:
m.castShadow = true
}
pickableObjects.push(m)
}
})
scene.add(gltf.scene)
},
(xhr) => {
console.log((xhr.loaded / xhr.total * 100) + '% loaded')
},
(error) => {
console.log(error);
}
);
window.addEventListener('resize', onWindowResize, false)
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
labelRenderer.setSize(window.innerWidth, window.innerHeight)
render()
}
let ctrlDown = false
let lineId = 0
let line: THREE.Line
let drawingLine = false
const measurementLabels: { [key: number]: CSS2DObject } = {}
window.addEventListener('keydown', function (event) {
if (event.key === "Control") {
ctrlDown = true
controls.enabled = false
renderer.domElement.style.cursor = "crosshair";
}
});
window.addEventListener('keyup', function (event) {
if (event.key === "Control") {
ctrlDown = false
controls.enabled = true
renderer.domElement.style.cursor = "pointer";
if (drawingLine) {
//delete the last line because it wasn't committed
scene.remove(line)
scene.remove(measurementLabels[lineId]);
drawingLine = false
}
}
});
const raycaster = new THREE.Raycaster()
let intersects: THREE.Intersection[]
const mouse = new THREE.Vector2();
renderer.domElement.addEventListener('pointerdown', onClick, false);
function onClick(event: MouseEvent) {
if (ctrlDown) {
raycaster.setFromCamera(mouse, camera)
intersects = raycaster.intersectObjects(pickableObjects, false);
if (intersects.length > 0) {
if (!drawingLine) {
//start the line
const geometry = new THREE.Geometry()
geometry.vertices.push(intersects[0].point)
geometry.vertices.push(intersects[0].point.clone())
line = new THREE.LineSegments(geometry, new THREE.LineBasicMaterial({
color: 0xffffff,
transparent: true,
opacity: 0.75
// depthTest: false,
// depthWrite: false
}))
line.frustumCulled = false
scene.add(line)
const measurementDiv = document.createElement('div') as HTMLDivElement
measurementDiv.className = 'measurementLabel'
measurementDiv.innerText = "0.0m"
const measurementLabel = new CSS2DObject(measurementDiv);
measurementLabel.position.copy(intersects[0].point);
measurementLabels[lineId] = measurementLabel;
scene.add(measurementLabels[lineId]);
drawingLine = true;
} else {
//finish the line
(line.geometry as THREE.Geometry).vertices[1].copy(intersects[0].point);
(line.geometry as THREE.Geometry).verticesNeedUpdate = true
lineId++
drawingLine = false
}
}
}
}
document.addEventListener('mousemove', onDocumentMouseMove, false);
function onDocumentMouseMove(event: MouseEvent) {
event.preventDefault();
mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
mouse.y = - (event.clientY / window.innerHeight) * 2 + 1;
if (drawingLine) {
raycaster.setFromCamera(mouse, camera)
intersects = raycaster.intersectObjects(pickableObjects, false);
if (intersects.length > 0) {
(line.geometry as THREE.Geometry).vertices[1].copy(intersects[0].point);
(line.geometry as THREE.Geometry).verticesNeedUpdate = true
const distance = (line.geometry as THREE.Geometry).vertices[0].distanceTo((line.geometry as THREE.Geometry).vertices[1])
measurementLabels[lineId].element.innerText = distance.toFixed(2) + "m"
measurementLabels[lineId].position.lerpVectors((line.geometry as THREE.Geometry).vertices[0], (line.geometry as THREE.Geometry).vertices[1], .5)
}
}
}
const stats = Stats()
document.body.appendChild(stats.dom)
var animate = function () {
requestAnimationFrame(animate)
controls.update()
render()
stats.update()
};
function render() {
labelRenderer.render(scene, camera)
renderer.render(scene, camera)
}
animate();
|
