Format
STL (Standard Tessellation Language) ASCII
Summary
- Name
- STL (Standard Tessellation Language) ASCII
- Identifiers
- PUID: x-fmt/108
- Format type
- Model
- Description
- STL is a 3D modelling file format created by 3D Systems. An STL file is a triangular representation of a 3-dimensional surface geometry. The surface is tessellated or broken down logically into a series of small triangles (facets). Each facet is described by a perpendicular direction and three points representing the vertices (corners) of the triangle. These data are used by a slicing algorithm to determine the cross sections of the 3-dimensional shape to be built by the fabricator.
- Format encoding
- Text
- File extensions
-
stl - Submitted by
- Digital Preservation Department / The National Archives
Internal signatures
STL
- Description
- <optional blank>solid + … + “facet normal” + … + “outer loop” + … + vertex
- Provenance
- The StL Format www.ennex.com/~fabbers/StL.asp
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
(73|2073)6F6C696420*6661636574206E6F726D616C20{0-200}6F75746572206C6F6F70{0-20}76657274657820- Endianness
- None
Changelog
-
V84
- Release date
- 21 January 2016
-
Updated
STL (Standard Tessellation Language) ASCII: Added description, alternate name of Stereolithography File, and set format type to 'Model'.
-
V58
- Release date
- 21 March 2012
-
Added signature
STL (Standard Tessellation Language) ASCII: Signature submitted by Georgia Tech Research Institute, USA.
-
Updated
STL (Standard Tessellation Language) ASCII: Format name changed for greater accuracy and consistency.