Design And Implementation Of Virtual Laboratory Based On Three.js

With the updating and popularization of Internet technology,virtual simulation technology is also developing vigorously,and it has become possible to develop high-performance virtual experiments on computer browsers.In the education and research of electronics,the role of electronic virtual laboratory is becoming more and more prominent,however,most of the technologies related to virtual simulation are based on 2D flat technology,which leads to a series of problems in the development of virtual laboratory such as monotonous expression and weak interactive function.This paper designs a virtual simulation laboratory based on WebGL and applying the Three.js framework,a 3D graphics library accelerated by GPU hardware.This paper firstly investigates the research status of virtual laboratories at domestic and abroad,and conducts an in-depth study on the theoretical background and key technologies involved in this topic,including Web 3D technology,WebGL technology,Three.js technology,and Blender modeling software.Then,this paper discusses the functional characteristics of the virtual laboratory in depth,designs the architecture of the virtual laboratory,including 3D model,UI components,operation interaction,experimental scenarios and simulation experiments,and analyzes the requirements of the system from both functional and non-functional aspects,the functional requirements include core experimental functions,auxiliary development functions and basic page components,and the non-functional requirements include compatibility,Functional requirements include core experimental functions,auxiliary development functions and basic page components,while non-functional requirements include compatibility,ease of use and performance.Finally,this paper uses the MVVM model to hierarchically divide the architecture of the virtual laboratory,separating the logic of data,events and business,designing and implementing experimental scenarios,interactive functions and experimental simulation functions,so as to build a component-based virtual laboratory system.The experimental scenes show a more detailed 3D model and better operation interaction,and two simulation experiments of light-emitting diode and flowing light verify that the virtual laboratory based on Three.js has better simulation experimental effect and can better meet the needs of users for virtual experiments.