plan9fox/sys/lib/ghostscript/landscap.ps
2011-03-30 19:35:09 +03:00

31 lines
1.5 KiB
PostScript

%!
% landscap.ps
%
% This file can be prepended to most PostScript pages to force
% rotation to "landscape" mode.
%
% There are (at least) four possible ways to reasonably position a
% page after rotation. Any of the four old corners (llx,lly e.g.)
% can be moved to match the corresonding new corner.
% By uncommmenting the appropriate line below (i.e., remove the
% leading '%'), any such positioning can be chosen for positive or
% negative rotation. The comments at the end of each "rotate" line
% indicate the ORIGINAL corner to be aligned. For example, as given
% below, the lower left hand corner is aligned. When viewed, this
% corner will have moved to the urx,lly corner.
%
% originally by James E. Burns, 3/8/93, burns@nova.bellcore.com
% $Id: landscap.ps,v 1.4 2002/02/21 21:49:28 giles Exp $
%
gsave clippath pathbbox grestore
4 dict begin
/ury exch def /urx exch def /lly exch def /llx exch def
%90 rotate llx neg ury neg translate % llx,ury
90 rotate llx neg llx urx sub lly sub translate % llx,lly
%90 rotate ury lly sub urx sub ury neg translate % urx,ury
%90 rotate ury lly sub urx sub llx urx sub lly sub translate % urx,lly
%-90 rotate urx neg lly neg translate % urx,lly
%-90 rotate urx neg urx llx sub ury sub translate % urx,ury
%-90 rotate llx lly add ury sub urx llx sub ury sub translate % llx,ury
%-90 rotate llx lly add ury sub lly neg translate % llx,lly
end