Unity WebGL Digital Twin Project in Practice: DWG(CAD) 3D Automatic Conversion and Real-time Space Generation

"Practical Unity Digital Twin with DWG Drawings: From Automatic Map Generation to 3D Editor & Heatmap"

📘 Course Introduction

How can you automatically create a 'realistic 3D space' from just a single drawing?
And how do you implement a digital twin service that allows you to place, modify, and visualize data on top of it?

The answer is DWG-based procedural modeling and real-time data-driven visualization technology.

In this course, starting with a core engine that reads DWG drawings and automatically generates walls based on Unity,
you will experience the entire process of a digital twin project used in actual industrial sites all at once.

The goal is not to create a demo that ends like a game,
but to build production-ready structures and features that can be used immediately in real-world practice.

DWG parsing → 3D wall generation → runtime 2D/3D editor → RestAPI integration → DI(VContainer) → Undo/Redo → heatmap visualization

Within this single curriculum, you will complete the core features of a digital twin service.

Core Technologies You'll Learn in This Course

1. DWG → Unity Procedural Modeling

• Understanding DWG file structure

• Line / Polyline → Automatic Wall Mesh Generation

• Wall height/thickness calculation and 3D conversion

• Real-time wall editing (add/delete/move)

2. Runtime 2D Map Editor Development

• Manipulate walls with mouse/touch input

• Snap, handle, and UI tool creation

• Save/Load edited content

3. REST API Integration and Data Communication

• Fetching map/object information from the server

• Save modified data to the server

• Implement real-time data polling scheduler

4. VContainer-based DI Architecture Design

• Service/Manager/Domain separation

• Design with a horizontally scalable architecture

• Building a maintainable architecture

5. 3D Object Placement and Editing Features

• Create / Move / Delete tool implementation

• Object snap, rotation, height adjustment

• JSON-based state saving

6. Applying Undo / Redo Pattern

• Command pattern design

• State Snapshot Management

• Used in map editing like in real-world scenarios

7. Digital Twin Visualization with Heatmap Shader

• Color gradient expression

• Data-driven heatmap generation

• Reflect in real-time with automatic update scheduler

👨‍💻 Who should take this course?

• Developers who want to implement digital twin technology with Unity

• Those curious about CAD → Unity automation pipelines

• Those who want to experience structured Unity projects used in real-world practice

• Those who want to learn advanced features like runtime editor, Undo/Redo, and DI

• Lead developers who want to quickly build company PoCs / projects

• Students/developers who want to create a solid "real-world project" for their portfolio

After completing this course

• You'll be able to receive DWG drawings and automatically generate 3D walls, and create
  a real procedural modeling pipeline that can be naturally modified at runtime.

• From DI structure design using VContainer, REST API communication,
  to applying Undo/Redo patterns—all the techniques used in actual work become naturally familiar.

• You'll also learn how to implement data-driven visualization using heatmap shaders.
  You'll no longer feel intimidated by how actual digital twin services work or how they're structured.

• You'll break free from the perception that digital twin = large corporations/special projects,
  and gain the ability to complete industrial systems with Unity alone.

• You'll naturally learn runtime editor design, data structuring, and architecture separation as if it's second nature.
  You'll no longer be just an implementer, but a developer who builds systems.

Notes Before Taking the Course