1 files changed, 21 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/doc/Hobbydir.asy b/Build/source/utils/asymptote/doc/Hobbydir.asy
new file mode 100644
index 00000000000..01d8a2e0ed0
--- /dev/null
+++ b/Build/source/utils/asymptote/doc/Hobbydir.asy
@@ -0,0 +1,21 @@
+size(200);
+pair z0=(0,0);
+pair z1=(1,2);
+pair z2=(2,1);
+
+path g=z0..z1..z2;
+
+label("$\ell_k$",z0--z1);
+draw("$\ell_{k+1}$",z1--z2,dashed);
+draw(z0--interp(z0,z1,1.5),dashed);
+pair d1=dir(g,1);
+draw(z1-d1..z1+d1,blue+dashed);
+draw(g,blue);
+draw(Label("$\theta_k$",0.4),arc(z1,0.4,degrees(z2-z1),degrees(d1)),blue,Arrow,
+     EndPenMargin);
+draw("$\phi_k$",arc(z1,0.4,degrees(d1),degrees(z1-z0),CCW),Arrow,
+     EndPenMargin);
+
+dot("$z_{k-1}$",z0,red);
+dot("$z_k$",z1,NW,red);
+dot("$z_{k+1}$",z2,red);