%    Copyright (C) 1999, 2000 artofcode LLC.  All rights reserved.% % This software is provided AS-IS with no warranty, either express or% implied.% % This software is distributed under license and may not be copied,% modified or distributed except as expressly authorized under the terms% of the license contained in the file LICENSE in this distribution.% % For more information about licensing, please refer to% http://www.ghostscript.com/licensing/. For information on% commercial licensing, go to http://www.artifex.com/licensing/ or% contact Artifex Software, Inc., 101 Lucas Valley Road #110,% San Rafael, CA  94903, U.S.A., +1(415)492-9861. % $Id: stocht.ps,v 1.6 2002/02/21 21:49:28 giles Exp $% helper file to simplify use of Stochastic Halftone - uses ht_ccsto.ps % This file sets the /StochasticDefault /Halftone as the current% and the /Default halftoning, loading the Stochastic halftone% if required. % Stochastic halftoning is recommended for inkjet printers, and may% produce output as pleasing as the more computationally expensive% "error diffusion" that *some* device drivers provide. % For printing technologies other than inkjet, Stochastic halftoning% may not look better than standard screening. In particular, thermal% transfer and direct thermal tend to be better with standard ordered% screening methods. Some laser printers may produce "smoother"% looking gray shades with Stochastic halftoning. Try it, and if% you like it, use it. % Note that this /Default halftone can be overridden by PostScript% operators that set the screening or halftone (such as setscreen). % To make Stochastic Halftone be "sticky" so that other screening and% halftone setting in the subsequent PostScript will be ignored, use:%	-c "<< /HalftoneMode 1 >> setuserparams"% on the command line prior to the file to be processed. For example,%% gs stocht.ps -c "<< /HalftoneMode 1 >> setuserparams" -f examples/tiger.eps % Alternatively, the command to set the /HalftoneMode userparam can be% concatenated to this file (see below). % =====================================================================% Try to get the previously defined resource{ /StochasticDefault /Halftone findresource } stopped{  pop pop  % Need to load the Stochastic Halftone using the lib file  (ht_ccsto.ps) runlibfile} if % If we didn't error out by now, then go ahead and define the /Default/StochasticDefault /Halftone findresource/Default exch /Halftone defineresourcesethalftone	% Use the halftone % Uncomment the next line to make the Stocahstic halftoning be "sticky"% << /HalftoneMode 1 >> setuserparams