Convert OFF to IGES Files

Convert OFF to IGES

OFF to IGES Conversion

Our step-by-step tutorial makes converting OFF to IGES quick and effortless:

  1. Download & Install:

    Convert your OFF files to IGES format seamlessly using our Autoconverter or Autoshaper - simply install and launch the software on your system.

  2. Import OFF File:

    Either click Open... to browse for your .off file, or drag and drop it anywhere in the application window.

  3. Export to IGES Format:

    Use Save As... to specify both location and filename (with .iges extension) for your exported file.

Struggling to convert OFF to IGES? Our reliable guides help you handle OFF files with ease:

OFF Object File Format

A straightforward, human-readable file format designed for representing 3D polygonal models. As a lightweight alternative to complex CAD formats, OFF focuses on storing essential geometric data - vertices, edges, and faces - without proprietary constraints.

Key Features of OFF

  • ASCII Text Files:

    : OFF files are text-based and use a simple syntax to store geometric data of 3D objects. The files can be easily edited and viewed with any text editor or viewer.

  • Polygonal Shapes:

    The OFF format allows to store 3D triangles, quads, and other generic polygonal shapes. Each shape is defined by a list of vertices and a list of faces.

  • Limitations:

    OFF files support only geometric data - materials, textures, and group names from source files are discarded during conversion.

OFF File Conversion

Our software offers two specialized approaches for OFF file conversion. Autoconverter handles conversion of OFF files to common mesh formats including STL, SKP, OBJ, and PLY, maintaining the original polygonal structure. Autoshaper provides advanced conversion of OFF polygonal data into smooth NURBS surfaces, exporting to BREP, STEP, and IGES formats for CAD workflows.

IGS Initial Graphics Exchange File

A file format widely used in the fields of CAD (Computer-Aided Design), CAM (Computer-Aided Manufacturing), and CAE (Computer-Aided Engineering), as it enables to transfer of 3D models and designs across different platforms and applications. Developed in the 1980s and standardized by ANSI and ISO, IGES remains a foundational yet legacy-neutral format for 3D data exchange.

Key Features of IGES/IGS

  • Text-Based Geometry Storage:

    The IGES format stores all geometric data in human-readable text, enabling easy editing but potentially creating large files when exporting complex models with dense meshes.

  • Color Representation:

    IGES maintains color information at the assembly level, preserving visual clarity in multi-component designs.

  • Transparency Limitations:

    Unlike modern formats, IGES lacks alpha channel support, meaning transparency settings from original 3D designs won't carry through in exported files.

IGES/IGS File Conversion

Autoconverter provides full read/write capabilities for IGES files through the Open Cascade framework, ensuring compatibility with the latest specifications. The application works exclusively with triangulated mesh geometry when processing IGES files. For projects requiring native NURBS surface preservation, we recommend using Autoshaper, which maintains the original smooth surface definitions throughout conversion.

OFF vs. IGES Comparison

Property OFF IGES
Extensions .off .igs, .iges
Name Object File Format Initial Graphics Exchange Specification
Versions
Textures
Colors
Geometry components
Readers
Writers