VG, SVG...

http://en.wikipedia.org/wiki/Vector_Graphics
Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based on mathematical equations, to represent images in computer graphics.


http://en.wikipedia.org/wiki/SVG
Scalable Vector Graphics (SVG) is a family of specifications of an XML-based file format for describing two-dimensional vector graphics, both static and dynamic (i.e. interactive or animated). The SVG specification is an open standard that has been under development by theWorld Wide Web Consortium (W3C) since 1999. 


걍 궁금해서..