💡 Convert JSON to SAT: CityJSON Model to ACIS Text File Converter

How to Convert JSON to SAT?

Get started with JSON to SAT conversion today. Our clear, step-by-step guide and powerful tool make the process fast and error-free:

  1. 📥 Download and Install

    Download and install Autoconverter on your system. This application will let you to convert your JSON files to SAT format - no additional CAD software required.

  2. 📂 Open Your JSON File

    Go to File > Open to load your JSON file (*.json, *.cityjson), or drag and drop it directly into the application window. The model loads into the 3D viewport for inspection before converting.

  3. 💾 Save As SAT Format

    Go to File > Save As, select SAT (*.sat) as the output format, choose your destination folder and filename, then click Save to complete the JSON to SAT conversion.

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!

SAT SAT File - Standard ACIS Text Format (.sat)

SAT files are ASCII-based 3D modeling files created using the ACIS geometric modeling kernel, developed by Spatial. Widely used in CAD applications, SAT (Standard ACIS Text) files store exact geometry and parametric data for solid modeling. This format enables accurate data exchange between leading CAD software such as AutoCAD, SolidWorks, Fusion 360, and Revit.

Key Features of SAT Files

  • High-Precision Geometry: Encodes accurate B-Rep (Boundary Representation) data using NURBS surfaces and curves.
  • CAD Interoperability: Supports seamless cross-platform exchange between AutoCAD, SolidWorks, Rhino, Revit, and other CAD tools.
  • Feature-Rich Modeling: Retains advanced design elements like fillets, lofts, extrusions, blends, and Boolean operations.
  • Readable Format: Human-readable ASCII text file that simplifies debugging and version control in collaborative workflows.

Convert 3D Solids to SAT Files

Using our powerful Autoconverter software, you can easily convert SAT files from popular 3D formats like STEP, IGES, STL, OBJ, and more. Whether you are preparing models for precision CAD editing or transforming mesh-based data into solid geometry, our SAT converter ensures reliable, high-quality results across platforms.

Start converting SAT files today - bridge the gap between mesh models and precise CAD solids in just one click, and unlock a smoother 3D design workflow with industry-standard compatibility.

JSON vs SAT - Comparison

Use the table below to compare JSON vs SAT file formats and determine which is better suited for 3D modeling, CAD, or GIS workflows.

Feature JSON SAT
Extensions .json, .cityjson .sat
Name CityJSON Standard ACIS Text
Textures ✅ ❌
Colors ✅ ✅
Geometry Components ✅ ❌
User Attributes ✅ ❌
Quads ✅ ✅
Importers 🚫
Exporters

More JSON and SAT Conversion Guides

Having issues with JSON to SAT conversion? Let our practical guides below turn JSON files conversion into a straightforward process:

👉 Convert JSON and SAT formats the right way, every time. Discover our JSON to SAT converter and experience seamless conversion with industry-leading accuracy.