MEDIUM ![]() | ![]() | |
| Name | Initial Graphics Exchange Specification | JT Open CAD File |
| File extension | .igs, .iges | .jt |
| Original software | ||
| Binary | ■ | |
| ASCII | ■ | |
| Polygonal | ■ | |
| NURBS | ■ | ■ |
| Solids | ||
| Smoothing groups | ■ | ■ |
| Textures, materials | ||
| Developer/Owner | U.S. National Bureau of Standards | Siemens |
| Description | ||
| Specification | Download PDF | www.jtopen.com |
| Format features | Universal open interchange NURBS-surfaces format. Along with STEP - one of the most popular | Open lightweight format of three-dimensional data |
| Viewing software | Delcam Exchange 2012 (free), eDrawings (free) | JT2Go (free), eDrawings RapidFire Lite 2011 (free) |