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diff --git a/graphics/pgf/base/tex/generic/libraries/pgflibrarypatterns.code.tex b/graphics/pgf/base/tex/generic/libraries/pgflibrarypatterns.code.tex
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+% Copyright 2018 by Till Tantau
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+%
+% See the file doc/generic/pgf/licenses/LICENSE for more details.
+
+\ProvidesFileRCS{pgflibrarypatterns.code.tex}
+
+
+% Lines in different directions
+
+\pgfdeclarepatternformonly{horizontal lines}{\pgfpointorigin}{\pgfqpoint{100pt}{1pt}}{\pgfqpoint{100pt}{3pt}}%
+{%
+ \pgfsetlinewidth{0.4pt}%
+ \pgfpathmoveto{\pgfqpoint{0pt}{0.5pt}}%
+ \pgfpathlineto{\pgfqpoint{100pt}{0.5pt}}%
+ \pgfusepath{stroke}%
+}%
+
+\pgfdeclarepatternformonly{vertical lines}{\pgfpointorigin}{\pgfqpoint{1pt}{100pt}}{\pgfqpoint{3pt}{100pt}}%
+{%
+ \pgfsetlinewidth{0.4pt}%
+ \pgfpathmoveto{\pgfqpoint{0.5pt}{0pt}}%
+ \pgfpathlineto{\pgfqpoint{0.5pt}{100pt}}%
+ \pgfusepath{stroke}%
+}%
+
+\pgfdeclarepatternformonly{north east lines}{\pgfqpoint{-1pt}{-1pt}}{\pgfqpoint{4pt}{4pt}}{\pgfqpoint{3pt}{3pt}}%
+{%
+ \pgfsetlinewidth{0.4pt}%
+ \pgfpathmoveto{\pgfqpoint{0pt}{0pt}}%
+ \pgfpathlineto{\pgfqpoint{3.1pt}{3.1pt}}%
+ \pgfusepath{stroke}%
+}%
+
+\pgfdeclarepatternformonly{north west lines}{\pgfqpoint{-1pt}{-1pt}}{\pgfqpoint{4pt}{4pt}}{\pgfqpoint{3pt}{3pt}}%
+{%
+ \pgfsetlinewidth{0.4pt}%
+ \pgfpathmoveto{\pgfqpoint{0pt}{3pt}}%
+ \pgfpathlineto{\pgfqpoint{3.1pt}{-0.1pt}}%
+ \pgfusepath{stroke}%
+}%
+
+% Crossed lines in different directions
+
+\pgfdeclarepatternformonly{grid}{\pgfqpoint{-1pt}{-1pt}}{\pgfqpoint{4pt}{4pt}}{\pgfqpoint{3pt}{3pt}}%
+{%
+ \pgfsetlinewidth{0.4pt}%
+ \pgfpathmoveto{\pgfqpoint{0pt}{0pt}}%
+ \pgfpathlineto{\pgfqpoint{0pt}{3.1pt}}%
+ \pgfpathmoveto{\pgfqpoint{0pt}{0pt}}%
+ \pgfpathlineto{\pgfqpoint{3.1pt}{0pt}}%
+ \pgfusepath{stroke}%
+}%
+
+\pgfdeclarepatternformonly{crosshatch}{\pgfqpoint{-1pt}{-1pt}}{\pgfqpoint{4pt}{4pt}}{\pgfqpoint{3pt}{3pt}}%
+{%
+ \pgfsetlinewidth{0.4pt}%
+ \pgfpathmoveto{\pgfqpoint{3.1pt}{0pt}}%
+ \pgfpathlineto{\pgfqpoint{0pt}{3.1pt}}%
+ \pgfpathmoveto{\pgfqpoint{0pt}{0pt}}%
+ \pgfpathlineto{\pgfqpoint{3.1pt}{3.1pt}}%
+ \pgfusepath{stroke}%
+}%
+
+
+% Dotted regions
+
+\pgfdeclarepatternformonly{dots}{\pgfqpoint{-1pt}{-1pt}}{\pgfqpoint{1pt}{1pt}}{\pgfqpoint{3pt}{3pt}}%
+{%
+ \pgfpathcircle{\pgfqpoint{0pt}{0pt}}{.5pt}%
+ \pgfusepath{fill}%
+}%
+
+\pgfdeclarepatternformonly{crosshatch dots}{\pgfqpoint{-1pt}{-1pt}}{\pgfqpoint{2.5pt}{2.5pt}}{\pgfqpoint{3pt}{3pt}}%
+{%
+ \pgfpathcircle{\pgfqpoint{0pt}{0pt}}{.5pt}%
+ \pgfpathcircle{\pgfqpoint{1.5pt}{1.5pt}}{.5pt}%
+ \pgfusepath{fill}%
+}%
+
+
+
+
+% Star shaped patterns
+
+\pgfdeclarepatternformonly{fivepointed stars}{\pgfpointorigin}{\pgfqpoint{3mm}{3mm}}{\pgfqpoint{3mm}{3mm}}%
+{%
+ \pgftransformshift{\pgfqpoint{1mm}{1mm}}%
+ \pgfpathmoveto{\pgfqpointpolar{18}{1mm}}%
+ \pgfpathlineto{\pgfqpointpolar{162}{1mm}}%
+ \pgfpathlineto{\pgfqpointpolar{306}{1mm}}%
+ \pgfpathlineto{\pgfqpointpolar{90}{1mm}}%
+ \pgfpathlineto{\pgfqpointpolar{234}{1mm}}%
+ \pgfpathclose%%
+ \pgfusepath{fill}%
+}%
+
+\pgfdeclarepatternformonly{sixpointed stars}{\pgfpointorigin}{\pgfqpoint{3mm}{3mm}}{\pgfqpoint{3mm}{3mm}}%
+{%
+ \pgftransformshift{\pgfqpoint{1mm}{1mm}}%
+ \pgfpathmoveto{\pgfqpointpolar{30}{1mm}}%
+ \pgfpathlineto{\pgfqpointpolar{150}{1mm}}%
+ \pgfpathlineto{\pgfqpointpolar{270}{1mm}}%
+ \pgfpathclose%
+ \pgfpathmoveto{\pgfqpointpolar{-30}{1mm}}%
+ \pgfpathlineto{\pgfqpointpolar{-270}{1mm}}%
+ \pgfpathlineto{\pgfqpointpolar{-150}{1mm}}%
+ \pgfpathclose%
+ \pgfsetnonzerorule%
+ \pgfusepath{fill}%
+}%
+
+
+
+% Bricks
+
+\pgfdeclarepatternformonly{bricks}{\pgfqpoint{-1pt}{-1pt}}{\pgfqpoint{5mm}{5mm}}{\pgfqpoint{4mm}{4mm}}%
+{%
+ \pgfsetlinewidth{0.8pt}%
+ \pgfpathmoveto{\pgfqpoint{0mm}{1mm}}%
+ \pgfpathlineto{\pgfqpoint{4mm}{1mm}}%
+ \pgfpathmoveto{\pgfqpoint{0mm}{3mm}}%
+ \pgfpathlineto{\pgfqpoint{4mm}{3mm}}%
+ \pgfpathmoveto{\pgfqpoint{1mm}{0mm}}%
+ \pgfpathlineto{\pgfqpoint{1mm}{1mm}}%
+ \pgfpathmoveto{\pgfqpoint{3mm}{1mm}}%
+ \pgfpathlineto{\pgfqpoint{3mm}{3mm}}%
+ \pgfpathmoveto{\pgfqpoint{1mm}{3mm}}%
+ \pgfpathlineto{\pgfqpoint{1mm}{4mm}}%
+ \pgfusepath{stroke}%
+}%
+
+
+% Checkerboards
+
+\pgfdeclarepatternformonly{checkerboard}{\pgfpointorigin}{\pgfqpoint{4mm}{4mm}}{\pgfqpoint{4mm}{4mm}}%
+{%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfqpoint{2mm}{2mm}}%
+ \pgfpathrectangle{\pgfqpoint{2mm}{2mm}}{\pgfqpoint{2mm}{2mm}}%
+ \pgfusepath{fill}%
+}%
+
+
+
+% Backgrounds
+
+\pgfdeclarepatterninherentlycolored{checkerboard light gray}
+{\pgfpointorigin}{\pgfqpoint{4mm}{4mm}}{\pgfqpoint{4mm}{4mm}}%
+{%
+% \pgfsetfillcolor{black!10}
+ \pgfpathrectangle{\pgfpointorigin}{\pgfqpoint{4.1mm}{4.1mm}}% make
+ % slightly larger to ensure that tiles
+ % are really solid
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{black!20}%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfqpoint{2mm}{2mm}}%
+ \pgfpathrectangle{\pgfqpoint{2mm}{2mm}}{\pgfqpoint{2mm}{2mm}}%
+ \pgfusepath{fill}%
+}%
+
+\pgfdeclarepatterninherentlycolored{horizontal lines light gray}
+{\pgfpointorigin}{\pgfpoint{100pt}{4pt}}
+{\pgfpoint{100pt}{4pt}}
+{%
+ \pgfsetfillcolor{black!10}%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{black!15}%
+ \pgfpathrectangle{\pgfpoint{0pt}{2pt}}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+}%
+
+\pgfdeclarepatterninherentlycolored{horizontal lines gray}
+{\pgfpointorigin}{\pgfpoint{100pt}{4pt}}
+{\pgfpoint{100pt}{4pt}}
+{%
+ \pgfsetfillcolor{black!30}%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{black!35}%
+ \pgfpathrectangle{\pgfpoint{0pt}{2pt}}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+}%
+
+\pgfdeclarepatterninherentlycolored{horizontal lines dark gray}
+{\pgfpointorigin}{\pgfpoint{100pt}{4pt}}
+{\pgfpoint{100pt}{4pt}}
+{%
+ \pgfsetfillcolor{black!90}%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{black!85}%
+ \pgfpathrectangle{\pgfpoint{0pt}{2pt}}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+}%
+
+\pgfdeclarepatterninherentlycolored{horizontal lines light blue}
+{\pgfpointorigin}{\pgfpoint{100pt}{4pt}}
+{\pgfpoint{100pt}{4pt}}
+{%
+ \pgfsetfillcolor{blue!10}%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{blue!15}%
+ \pgfpathrectangle{\pgfpoint{0pt}{2pt}}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+}%
+
+\pgfdeclarepatterninherentlycolored{horizontal lines dark blue}
+{\pgfpointorigin}{\pgfpoint{100pt}{4pt}}
+{\pgfpoint{100pt}{4pt}}
+{%
+ \pgfsetfillcolor{blue!90}%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{blue!85}%
+ \pgfpathrectangle{\pgfpoint{0pt}{2pt}}{\pgfpoint{100pt}{2.5pt}}%
+ \pgfusepath{fill}%
+}%
+
+
+\pgfdeclarepatterninherentlycolored{crosshatch dots gray}
+{\pgfpointorigin}{\pgfpoint{8pt}{8pt}}
+{\pgfpoint{8pt}{8pt}}
+{%
+ \pgfsetfillcolor{black!20}%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{8pt}{8pt}}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{black!10}%
+ \pgfpathcircle{\pgfpoint{2pt}{1.75pt}}{1pt}%
+ \pgfpathcircle{\pgfpoint{6pt}{5.75pt}}{1pt}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{black!70}%
+ \pgfpathcircle{\pgfpoint{2pt}{2.25pt}}{1pt}%
+ \pgfpathcircle{\pgfpoint{6pt}{6.25pt}}{1pt}%
+ \pgfusepath{fill}%
+}%
+
+\pgfutil@definecolor{pgf@lightsteelblue}{rgb}{0.6875,0.765625,0.8671875}%
+\pgfutil@colorlet{pgf@darklightsteelblue}{black!50!pgf@lightsteelblue}%
+
+\pgfdeclarepatterninherentlycolored{crosshatch dots light steel blue}
+{\pgfpointorigin}{\pgfpoint{8pt}{8pt}}
+{\pgfpoint{8pt}{8pt}}
+{%
+ \pgfsetfillcolor{pgf@lightsteelblue}%
+ \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{8pt}{8pt}}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{pgf@darklightsteelblue!10}%
+ \pgfpathcircle{\pgfpoint{2pt}{1.75pt}}{1pt}%
+ \pgfpathcircle{\pgfpoint{6pt}{5.75pt}}{1pt}%
+ \pgfusepath{fill}%
+ \pgfsetfillcolor{pgf@darklightsteelblue!70}%
+ \pgfpathcircle{\pgfpoint{2pt}{2.25pt}}{1pt}%
+ \pgfpathcircle{\pgfpoint{6pt}{6.25pt}}{1pt}%
+ \pgfusepath{fill}%
+}%
+
+
+\endinput