101 lines
2.4 KiB
PostScript
101 lines
2.4 KiB
PostScript
%!
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% Copyright (C) 1994 Aladdin Enterprises. All rights reserved.
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%
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% This software is provided AS-IS with no warranty, either express or
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% implied.
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%
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% This software is distributed under license and may not be copied,
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% modified or distributed except as expressly authorized under the terms
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% of the license contained in the file LICENSE in this distribution.
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%
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% For more information about licensing, please refer to
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% http://www.ghostscript.com/licensing/. For information on
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% commercial licensing, go to http://www.artifex.com/licensing/ or
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% contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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% San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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% $Id: zeroline.ps,v 1.4 2002/02/21 21:49:28 giles Exp $
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% zeroline.ps
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% Test file to determine how other PostScript implementations handle
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% filling zero-width lines under a variety of conditions.
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% Add a small "fan" of zero-width lines at different angles to the path.
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/fan
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{ currentpoint 100 0 rlineto
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2 copy moveto 100 20 rlineto
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2 copy moveto 100 100 rlineto
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2 copy moveto 20 100 rlineto
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moveto 0 100 rlineto
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} def
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% Append a rectangle to the current path.
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/rectappend
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{ 4 -2 roll moveto 1 index 0 rlineto 0 exch rlineto
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neg 0 rlineto closepath
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} def
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% Fill a rectangle.
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/rectfill
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{ gsave newpath rectappend fill grestore
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} def
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% Stroke a rectangle.
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/rectstroke
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{ gsave newpath rectappend stroke grestore
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} def
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% Clip to a rectangle. Unlike the real rectclip,
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% this clear the current path.
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/rectclip
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{ newpath rectappend clip newpath
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} def
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40 40 translate
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% Display fans of different colors on different backgrounds.
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gsave
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0 setgray
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0 0 120 120 rectstroke
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10 10 moveto fan fill
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140 0 translate
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0 setgray
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0 0 120 120 rectstroke
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0.8 setgray
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10 10 moveto fan fill
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140 0 translate
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0 setgray
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0 0 120 120 rectfill
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1 setgray
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10 10 moveto fan fill
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grestore
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0 140 translate
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% Display rectangles with two edges coincident.
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gsave
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newpath
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0 setgray
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0 0 40 40 rectappend
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0 0 20 20 rectappend
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eofill
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60 0 translate
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0 0 40 40 rectappend
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40 0 -20 20 rectappend
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fill
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grestore
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0 60 translate
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% Display superimposed lines.
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gsave
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/super
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{ currentpoint fan
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2 copy moveto 20 0 rmoveto 50 0 rlineto
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2 copy moveto 20 4 rmoveto 50 10 rlineto
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2 copy moveto 20 20 rmoveto 50 50 rlineto
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2 copy moveto 4 20 rmoveto 10 50 rlineto
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moveto 0 20 rmoveto 0 50 rlineto
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} def
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0 setgray
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0 0 moveto super fill
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140 0 translate 0 0 moveto super eofill
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grestore
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0 140 translate
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showpage
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