Obj(t)(btex N etex) "labpathname(N) ,
treepos(Obj(t))(2)(btex L etex) "labpathid(1) ,
1)(btex l etex)labpathid(1), "labdir(lft)"; % The previous is a shorthand for % ObjLabel, treepos(treepos(Obj(t))(2))(1)(btex l etex) % "labpathid(1) ,
ntreepos(Obj(t))(2,1)(btex r etex) "labpathid(2) ,
ntreepos(Obj(t))(2,2)(btex r etex) "labpathid(2) ,
treepos(Obj(t))(4)(btex $(0,0,0)$ etex ,
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A Special-Purpose Language for Picture-Drawing, USENIX Conf. on Domain-specific Languages, pp.297-310, 1997. ,
The metafontbook, 1986. ,
Digital Typography, CSLI Lecture Notes. CSLI, vol.78, 1999. ,
Diplomarbeit an der Rheinischen Friedrich- WilhelmsUniversität Bonn, 1998. ,
Creating 3D animations with metapost, TUGboat, vol.18, issue.4, pp.274-283, 1997. ,
Very High Level 2-dimensional Graphics, pp.151-158, 1997. ,
PSTree user's guide, 1993. ,
PSTricks: PostScript macros for Generic T E X; User's Guide, 1993. ,