Editing Computer font (section)

=== Stroke-based font formats ===
[[Metafont]] uses a different sort of glyph description. Like TrueType, it is a vector font description system. It draws glyphs using strokes produced by moving a polygonal or elliptical pen approximated by a polygon along a path made from cubic [[composite Bézier curve]]s and straight line segments, or by filling such paths. Although when stroking a path the envelope of the stroke is never actually generated, the method causes no loss of accuracy or resolution. The method Metafont uses is more mathematically complex because the [[parallel curve]]s of a Bézier can be 10th order algebraic curves.<ref name="Kilgard">{{cite web |title = Vector Graphics & Path Rendering |author = Mark Kilgard |url = http://www.slideshare.net/Mark_Kilgard/22pathrender |date = 10 April 2012 |page = 28 |access-date = 2014-08-19 |archive-url = https://web.archive.org/web/20140813082730/http://www.slideshare.net/Mark_Kilgard/22pathrender |archive-date = 2014-08-13 |url-status = live }}</ref>

In 2004, [[DynaComware]] developed DigiType, a stroke-based font format. In 2006, the creators of the [[Saffron Type System]] announced a representation for stroke-based fonts called [[Saffron Type System#Stylized stroke fonts|Stylized Stroke Fonts]] (SSFs) with the aim of providing the expressiveness of traditional outline-based fonts and the small [[memory footprint]] of uniform-width stroke-based fonts (USFs).<ref>{{cite conference |title = An Improved Representation for Stroke-based Fonts |conference = SIGGRAPH 2006 |first1 = Elena J. |last1 = Jakubiak |first2 = Ronald N. |last2 = Perry |first3 = Sarah F. |last3 = Frisken }}</ref>

[[AutoCAD]] uses [[Shapefile|SHX/SHP]] fonts.