Une nouvelle série d'exemples : des courbes paramétrées

[mp-gdd.git] / exemples / courbes / cp02.mp

diff --git a/exemples/courbes/cp02.mp b/exemples/courbes/cp02.mp
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+input gdd;
+input gdd-rep;
+input gdd-lbl;
+input gdd-tra;
+input svgnames;
+
+lblPreambule := "\usepackage[frenchb]{babel}"       &
+                "\usepackage[garamond]{mathdesign}" &
+                "\usepackage{amsmath}";
+
+input gdd-fct;
+input gdd-plt;
+
+labeloffset := 6;
+gddU:=1.2cm;
+
+vardef f(expr t) = sin(2*t+Pi/3) enddef;
+vardef g(expr t) = sin(3*t) enddef;
+
+def avecCrayon(expr t,c) = withpen pencircle scaled t withcolor c enddef;
+
+
+
+beginfig(1);
+
+
+ Repere(8,8,4,4,3,3);
+ Axes; 
+ Debut; 
+  Graduations; Unites(1);
+
+  drawoptions(withcolor LightSlateGrey);
+  trace ((-1,-1)--(-1,1)--(1,1)--(1,-1)--cycle);
+  trace ((-1,-1)--(1,1));
+  trace (1,-1)--(-1,1);
+  trace Cercle(origine,1);
+  trace ((-1,0.5)--(1,0.5));
+  trace ((-1,-0.5)--(1,-0.5));
+  trace ((0.5,-1)--(0.5,1));
+  trace ((-0.5,-1)--(-0.5,1));
+  trace ((-1,sqrt(3)/2)--(1,sqrt(3)/2));
+  trace ((-1,-sqrt(3)/2)--(1,-sqrt(3)/2));
+  trace ((sqrt(3)/2,-1)--(sqrt(3)/2,1));
+  trace ((-sqrt(3)/2,-1)--(-sqrt(3)/2,1));
+
+  trace Courbe(f,g,0,2*Pi,500) avecCrayon(1.5,Orchid);
+
+  pointe Point(0,0);
+
+ Fin;
+
+
+endfig;
+
+end
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