Web3D包装生产线 HTML5+Threejs(webgl)开发网站首页 技术杂谈

Web3D包装生产线 HTML5+Threejs(webgl)开发

allenjiao 2023-06-06 08:00:02

简介Web3D包装生产线 HTML5+Threejs(webgl)开发

生产线三维可视化解决方案就是通过物联网、虚实联动和三维建模等先进技术，以一个3D立体模型展现出来，可以让我们很直观的看到生产线的运作以及对数据的监控。3D运用数据孪生技术可以让工业3D物联网管理系统的界面变得非常的简单易看，并且能够及时的将异常信息传达给监控人员，以便于监控人员在识别到异常信息的时候能够及时解决问题，从而提高监控效率。

引擎加载（引擎场景、灯光、相机）

import * as THREE from '../build/three.module.js';

import { GLTFLoader } from './jsm/loaders/GLTFLoader.js';
import Stats from './jsm/libs/stats.module.js';
import { GUI } from './jsm/libs/dat.gui.module.js';

camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.1, 100 );
camera.position.set( 25, 25, 25 );
camera.lookAt( 0, 0, 0 );

//

scene = new THREE.Scene();
scene.background = new THREE.Color( api.backgroundColor );

const pointLight = new THREE.PointLight( 0xAA8899, 0.75 );
pointLight.position.set( 50, - 25, 75 );
scene.add( pointLight );

scene.add( new THREE.HemisphereLight() );

const amount = 100000;
				const radius = 200;

				const positions = new Float32Array( amount * 3 );
				const colors = new Float32Array( amount * 3 );
				const sizes = new Float32Array( amount );

				const vertex = new THREE.Vector3();
				const color = new THREE.Color( 0xffffff );

				for ( let i = 0; i < amount; i ++ ) {

					vertex.x = ( Math.random() * 2 - 1 ) * radius;
					vertex.y = ( Math.random() * 2 - 1 ) * radius;
					vertex.z = ( Math.random() * 2 - 1 ) * radius;
					vertex.toArray( positions, i * 3 );

					if ( vertex.x < 0 ) {

						color.setHSL( 0.5 + 0.1 * ( i / amount ), 0.7, 0.5 );

					} else {

						color.setHSL( 0.0 + 0.1 * ( i / amount ), 0.9, 0.5 );

					}

					color.toArray( colors, i * 3 );

					sizes[ i ] = 10;

				}

				const geometry = new THREE.BufferGeometry();
				geometry.setAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );
				geometry.setAttribute( 'customColor', new THREE.BufferAttribute( colors, 3 ) );
				geometry.setAttribute( 'size', new THREE.BufferAttribute( sizes, 1 ) );

				//

				const material = new THREE.ShaderMaterial( {

					uniforms: {
						color: { value: new THREE.Color( 0xffffff ) },
						pointTexture: { value: new THREE.TextureLoader().load( "textures/sprites/spark1.png" ) }
					},
					vertexShader: document.getElementById( 'vertexshader' ).textContent,
					fragmentShader: document.getElementById( 'fragmentshader' ).textContent,

					blending: THREE.AdditiveBlending,
					depthTest: false,
					transparent: true

				} );

				//

				sphere = new THREE.Points( geometry, material );
				scene.add( sphere );

生产线仿真

通过Wis3D平台建立生产线数字化模型，动态模拟产线生产过程，快速实现产能验证与产线设计方案的分析并提供优化解决方案。

三维仿真特点：

基于3D生产线规划方案仿真，验证布局方案对产能影响分析

确定生产线极限产能

确定人员需求

仿真确定故障之后生产线的调控应对能力

评估不同生产方案以确定最优最切合实际的方案

确定最合适的生产策略

缓存、设备/人员利用率分析

考虑排产计划、设备OEE、存储区设置以及生产纲领等因素综合评估并给出优化改善建议。

模型轻量化加载

 <script type="x-shader/x-vertex" id="vertexshader">

			attribute float size;
			attribute vec3 customColor;

			varying vec3 vColor;

			void main() {

				vColor = customColor;

				vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );

				gl_PointSize = size * ( 300.0 / -mvPosition.z );

				gl_Position = projectionMatrix * mvPosition;

			}

		</script>

		<script type="x-shader/x-fragment" id="fragmentshader">

			uniform vec3 color;
			uniform sampler2D pointTexture;

			varying vec3 vColor;

			void main() {

				gl_FragColor = vec4( color * vColor, 1.0 );
				gl_FragColor = gl_FragColor * texture2D( pointTexture, gl_PointCoord );

			}

		</script>

function ( geometry ) {

   geometry.computeVertexNormals();
   geometry.scale( 0.5, 0.5, 0.5 );

   const material = new THREE.MeshNormalMaterial();
   // check overdraw
   // let material = new THREE.MeshBasicMaterial( { color: 0xff0000, opacity: 0.1, transparent: true } );

   mesh = new THREE.InstancedMesh( geometry, material, count );
   mesh.instanceMatrix.setUsage( THREE.DynamicDrawUsage ); // will be updated every frame
   scene.add( mesh );

} );

工厂仿真的价值

通过对整个工厂进行仿真，可以及早发现规划中的缺陷和错误，使工厂规划质量得到保证