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-rw-r--r--graphics/asymptote/doc/Hobbycontrol.asy20
1 files changed, 20 insertions, 0 deletions
diff --git a/graphics/asymptote/doc/Hobbycontrol.asy b/graphics/asymptote/doc/Hobbycontrol.asy
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+++ b/graphics/asymptote/doc/Hobbycontrol.asy
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+size(200);
+pair z0=(0,0);
+pair z1=(0.5,3);
+pair z2=(2,1);
+
+path g=z0..z1..z2;
+
+pair d0=dir(g,0);
+pair d1=dir(g,1);
+draw(Label("$\omega_0$",1),z0-d0..z0+d0,blue+dashed,Arrow);
+draw(Label("$\omega_1$",1),z1-d1..z1+1.5d1,blue+dashed,Arrow);
+draw(z0--interp(z0,z1,1.5),dashed);
+draw(subpath(g,0,1),blue);
+draw("$\theta$",arc(z0,0.4,degrees(z1-z0),degrees(d0)),red,Arrow,
+ EndPenMargin);
+draw("$\phi$",arc(z1,1.05,degrees(z1-z0),degrees(d1)),red,Arrow,
+ EndPenMargin);
+
+dot("$z_0$",z0,SW,red);
+dot("$z_1$",z1,SE,red);