From 12e6ad672d1e6a20697000e5886c110f42d2ef18 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Sat, 28 May 2022 15:59:17 +0800
Subject: [PATCH] add differential_line_growth_bowl

---
 examples/differential_line_growth_bowl.scad | 28 +++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 examples/differential_line_growth_bowl.scad

diff --git a/examples/differential_line_growth_bowl.scad b/examples/differential_line_growth_bowl.scad
new file mode 100644
index 00000000..d2a7944a
--- /dev/null
+++ b/examples/differential_line_growth_bowl.scad
@@ -0,0 +1,28 @@
+use <shape_circle.scad>;
+use <midpt_smooth.scad>;
+use <polyline_join.scad>;
+use <polyhedra/icosahedron.scad>;
+use <experimental/differential_line_growth.scad>;
+use <experimental/ptf_c2sphere.scad>;
+
+$fn = 24;
+r = 10;
+times = 50;
+line_r = 2;
+smooth = true;
+smooth_times = 2;
+node_option = [
+    0.4,    // maxForce 
+    0.5,    // maxSpeed
+    5,      // separationDistance
+    1.2,    // separationCohesionRatio 
+    4       // maxEdgeLength
+];
+
+init_shape = shape_circle(r);
+poly = differential_line_growth(init_shape, node_option, times);
+smoothed = smooth ? midpt_smooth(poly, smooth_times, true) : poly;
+
+sphere_r = max(max(smoothed));
+polyline_join([for(p = [each smoothed, smoothed[0]]) ptf_c2sphere(p, sphere_r)])
+    icosahedron(line_r);