From bc17a2df194c814aa2346946a5a2a4ccf49fa0ce Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Fri, 1 Oct 2021 08:27:07 +0800
Subject: [PATCH] add polyline_hull

---
 src/polyline_hull.scad | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 src/polyline_hull.scad

diff --git a/src/polyline_hull.scad b/src/polyline_hull.scad
new file mode 100644
index 00000000..bb8feb64
--- /dev/null
+++ b/src/polyline_hull.scad
@@ -0,0 +1,25 @@
+module polyline_hull(points) {
+    leng = len(points);
+    
+    module hull_line(index) {
+        hull() {
+            translate(points[index - 1]) 
+                children();
+            translate(points[index]) 
+                children();
+        }
+    }
+
+    if($children == 1) {
+        for(i = [1:leng - 1]) {
+            hull_line(i)
+                children();
+        }
+    }
+    else {
+        for(i = [1:leng - 1]) {
+            hull_line(i)
+                children(i);
+        }
+    }
+}
\ No newline at end of file