✨ Convert GstarCAD to JSON: DWG Drawing to CityJSON Model Conversion

How to Convert GstarCAD to JSON?

Get your GstarCAD drawings into JSON format quickly and precisely with our simple, easy-to-follow 3-step process:

  1. 📥 Install Automesher Application

    Download and install Automesher Application for AutoCAD, BricsCAD, GstarCAD, or ZWCAD - it adds the AmExportMesh command needed to export JSON files directly from GstarCAD drawings. Restart your CAD software after installation to load the plugin.

  2. ▶️ Run JSON Export Command

    Type AmExportMesh in the command line and press Enter. Select the 3D entities you want to export from the GstarCAD model space - supported types include Polyface Mesh, Polygon Mesh, 3D Solid, and 3D Face - then press Enter again to confirm the selection.

  3. 💾 Save as JSON File

    In the save dialog, select JSON (*.json, *.cityjson) as the output format, choose your destination folder and filename, then click Save. Automesher converts the selected GstarCAD entities and writes them to your file.

GCAD GstarCAD - Convert DWG Drawings

GstarCAD, developed by Gstarsoft, is a powerful and cost-effective CAD software solution, known for its high compatibility with the DWG file format. DWG files are widely used to store 2D and 3D design data in architecture, engineering, construction, and manufacturing industries.

Key Features of GstarCAD and DWG Files

  • Robust CAD Tools: Design precise 2D drawings and detailed 3D models using GstarCAD's comprehensive drafting and modeling features.
  • Native DWG Support: Open, edit, and save .dwg files natively to maintain accuracy and ensure seamless collaboration across platforms.
  • Customization and Automation: Optimize workflows with support for AutoLISP, VBA, and GRX APIs to automate repetitive tasks and extend functionality.

Convert DWG Files to 3D and GIS Formats

Boost GstarCAD's capabilities with our Automesher Application and Automapki Application. These tools enable the import and export of popular 3D formats like STL, OBJ, SKP, FBX, and STEP, along with GIS formats such as SHP, KML, and GeoJSON. Integrate 3D models and spatial data directly into your GstarCAD projects with ease.

Convert DWG files and bring real-world context into your CAD environment - streamline your BIM and GIS workflows with powerful GstarCAD-compatible file conversion tools.

JSON 3D City Model (CityJSON) File

The CityJSON file format is a modern, JSON-based (JavaScript Object Notation) standard designed for storing and exchanging 3D city models. It efficiently encodes buildings, roads, bridges, urban furniture, and other city objects, offering strong support for textures, semantics, and detailed metadata. CityJSON is a lightweight alternative to CityGML, optimized for simplicity, web integration, and high-performance applications.

Key Features of CityJSON Files

  • JSON Simplicity: CityJSON files are lightweight, human-readable, and easily parsed by common programming languages, avoiding the complexity of XML structures like in CityGML.
  • Semantic Data: Preserves rich metadata, including building heights, roof shapes, material classifications, and road types, enhancing 3D GIS and urban analysis.
  • LOD (Level of Detail) Support: Manages multiple levels of detail (LOD1 through LOD4) to suit diverse visualization, simulation, and analysis needs.
  • Web-Friendly Format: Perfect for 3D web visualization and integration with JavaScript libraries like Cesium and Three.js.
  • Open and Extensible: Developed by the 3D Geoinformation Group (Delft University of Technology), CityJSON is an open standard that promotes interoperability and innovation.
  • File Extension Note: Both CityJSON and GeoJSON use the .json extension - ensure you verify the file structure before processing to avoid errors.

CityJSON File Conversion Made Easy

With Autoconverter and Automesher Application, you can seamlessly import, export, and convert CityJSON files into formats like STL, OBJ, SKP (SketchUp), and 3DS. Our tools preserve geometric precision and semantic information, making it easy to integrate 3D city models into your CAD, GIS, and 3D visualization workflows.

Streamline Your 3D City Modeling Today

Optimize your urban planning, GIS projects, and 3D web applications with powerful CityJSON file conversion. Try Autoconverter and Automesher Application now and unlock the full potential of CityJSON in your workflows!

GstarCAD vs JSON - Comparison

Below is a side-by-side comparison of GstarCAD and JSON file formats to support your 3D modeling, CAD, or GIS workflow decisions.

Feature GstarCAD JSON
Extensions .dwg, .dxf .json, .cityjson
Name GstarCAD Drawing CityJSON
Versions
  • Min: GstarCAD 2022
  • Max: GstarCAD 2025
🚫
Textures ✅ ✅
Colors ✅ ✅
Geometry Components ✅ ✅
User Attributes ✅ ✅
Quads ✅ ✅
Importers
Exporters

More GstarCAD and JSON Conversion Guides

Struggling with GstarCAD to JSON conversion? Our step-by-step guides below take the guesswork out of GstarCAD drawings conversion completely:

👉 Looking for a fast and accurate GstarCAD and JSON conversion tool? Try our GstarCAD to JSON converter and simplify your workflow with precision you can count on.