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[ads2.git] / 8-geom2 / lib.mp

diff --git a/8-geom2/lib.mp b/8-geom2/lib.mp
index 2536305d234d0f8bb52f4dc3de0df583815ae273..cbeedf52814457545e0e20dfd95519a04dbf00da 100644 (file)
--- a/8-geom2/lib.mp
+++ b/8-geom2/lib.mp
@@ -45,6 +45,8 @@ def drawfvertices(expr s,n,flags) =
        endfor
 enddef;
 
+path centersquare; centersquare := (-0.5,-0.5)--(0.5,-0.5)--(0.5,0.5)--(-0.5,0.5)--cycle;
+
 def vertex(expr p) = p withpen pencircle scaled 4pt enddef;
 def drawemptyvertex(expr p) = unfill fullcircle scaled 4pt shifted p; draw fullcircle scaled 4pt shifted p; enddef;
 def drawendpointvertex(expr p) = draw vertex(p) withcolor red; draw fullcircle scaled 6pt shifted p; enddef;