From e0c6872cf40896c7be36b11dcc744620f10adf1d Mon Sep 17 00:00:00 2001
From: Norbert Preining <norbert@preining.info>
Date: Mon, 2 Sep 2019 13:46:59 +0900
Subject: Initial commit

---
 info/examples/tip/graphmac.tip | 82 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 info/examples/tip/graphmac.tip

(limited to 'info/examples/tip/graphmac.tip')

diff --git a/info/examples/tip/graphmac.tip b/info/examples/tip/graphmac.tip
new file mode 100644
index 0000000000..6cf2ba10d9
--- /dev/null
+++ b/info/examples/tip/graphmac.tip
@@ -0,0 +1,82 @@
+% This macro source file is from the four volume series
+% "TeX in Practice" by Stephan von Bechtolsheim, published
+% 1993 by Springer-Verlag, New York.
+% Copyright 1993 Stephan von Bechtolsheim.
+% No warranty or liability is assumed.
+% This macro may be copied freely if no fees other than
+% media cost or shipping charges are charged and as long
+% as this copyright and the following source code itself
+% is not changed. Please see the series for further information.
+%
+% Version: 1.0
+% Date: May 1, 1993
+%
+%
+% This source code is documented in 9.2.1, p. I-314.
+% Original source in file "boxit.TEX", starting line 79.
+\wlog{L: "graphmac.tip" ["boxit.TEX," l. 79, p. I-314]}%
+% This file DOES belong to format "texip."
+\InputD{box-zero.tip}
+\catcode`\@ = 11
+\newdimen\@ScaleLength
+\def\SetScale #1{% 
+    \@ScaleLength = #1
+}
+\SetScale{1mm}
+\newdimen\@LineThickness
+\def\SetLineThickness #1{%
+    \@LineThickness = #1
+}
+\SetLineThickness{0.3mm}
+\newbox\@GraphDataBox
+\def\SetGraphDataBox #1{%
+    \dimen0 = #1%
+    \setbox\@GraphDataBox =
+        \hbox{%
+            \hskip -0.5\dimen0
+            \vrule height 0.5\dimen0
+                   depth  0.5\dimen0
+                   width  1.0\dimen0
+        }%
+    \ZeroBox{\@GraphDataBox}%
+}
+\SetGraphDataBox{2mm}
+\def\DrawDataBox (#1,#2){%
+    {%
+        \setbox0 = \hbox{%
+            \hskip #1\@ScaleLength
+            \raise #2\@ScaleLength\copy\@GraphDataBox
+        }%
+        \ZeroBoxOut{0}% 
+    }% 
+}
+\def\DrawHLine (#1,#2)#3{%
+    {%
+        \setbox0 = \hbox{%
+            \hskip #1\@ScaleLength
+            \raise #2\@ScaleLength
+                \hbox{%
+                    \vrule height 0.5\@LineThickness
+                           depth  0.5\@LineThickness
+                           width  #3\@ScaleLength
+                }% 
+        }%
+        \ZeroBoxOut{0}% 
+    }% 
+}
+\def\DrawVLine (#1,#2)#3{%
+    {%
+        \setbox0 = \hbox{%
+            \hskip #1\@ScaleLength
+            \hskip -0.5\@LineThickness
+            \raise #2\@ScaleLength
+                \hbox{%
+                    \vrule height #3\@ScaleLength
+                           depth  0pt
+                           width  \@LineThickness
+                }% 
+        }%
+        \ZeroBoxOut{0}% 
+    }% 
+}
+\catcode`\@ = 12
-- 
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