DEC Special Graphics Character Set

The DEC Special Graphics Character Set is one of the available character sets on VT100 and compatible terminals.

It differs from ASCII only in the 32 characters from code points (decimal) 95 through 126 (the "special graphics characters"). Its most recognizable characters are probably the line-drawing and box-drawing characters, which were frequently used in the VT100 variant of ANSI Art.

Unicode mapping
All of the characters exist in Unicode, though there does not seem to be an official mapping. The horizontal "scan" line characters were added in Unicode 3.2.0.

Here is an unofficial Unicode mapping:

Specifications

 * VT220 Programmer Reference Manual, Table 2-4: DEC Special Graphics Character Set
 * VT100 Series Technical Manual, Table A-9: Special Graphics Characters
 * VT100 User Guide, Table 3-9: Special Graphics Characters

Links

 * VT100 ASCII Animation: TwilightZone - Example of VT100 animation, using box-drawing characters (video)
 * VT100
 * VT100.net
 * About the 'alternate linedrawing character set'