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-rw-r--r--info/drawing-with-metapost/src/open-triangle.mp22
1 files changed, 22 insertions, 0 deletions
diff --git a/info/drawing-with-metapost/src/open-triangle.mp b/info/drawing-with-metapost/src/open-triangle.mp
new file mode 100644
index 0000000000..5535611558
--- /dev/null
+++ b/info/drawing-with-metapost/src/open-triangle.mp
@@ -0,0 +1,22 @@
+\documentclass{standalone}
+\usepackage{dwmpcode}
+\usepackage{luamplib}
+\mplibtextextlabel{enable}
+\begin{document}
+\begin{mplibcode}
+beginfig(1);
+ahangle := 30;
+path xx, yy; xx = left scaled 8 -- right scaled 89; yy = down scaled 8 -- up scaled 55;
+path u; u = origin {right} .. (55,0) .. (55,34) .. {-2, -1} origin;
+drawarrow xx withcolor .67 white;
+drawarrow yy withcolor .67 white;
+drawarrow u cutafter fullcircle scaled 4;
+dotlabeldiam := 2;
+dotlabel.urt("$\scriptstyle (55,34)$", point 2 of u);
+dotlabel.lrt("$\scriptstyle (55,0)$", point 1 of u);
+dotlabel.llft("$\scriptstyle (0,0)$", point 0 of u);
+label.bot(TEX("\mpl{drawarrow u cutafter fullcircle scaled 4};") scaled 0.8,
+point 1/2 of bbox currentpicture shifted 13 down);
+endfig;
+\end{mplibcode}
+\end{document}