add comments

src/bend_extrude.scad

@@ -1,3 +1,13 @@
+/**
+* bend_extrude.scad
+*
+* @copyright Justin Lin, 2019
+* @license https://opensource.org/licenses/lgpl-3.0.html
+*
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-bend_extrude.html
+*
+**/
+
 module bend_extrude(size, thickness, angle, frags = 24) {
     x = size[0];
     y = size[1];

src/in_polyline.scad

@@ -1,3 +1,13 @@
+/**
+* in_polyline.scad
+*
+* @copyright Justin Lin, 2019
+* @license https://opensource.org/licenses/lgpl-3.0.html
+*
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-in_polyline.html
+*
+**/
+
 include <__private__/__to3d.scad>;
 include <__private__/__in_line.scad>;
 

src/in_shape.scad

@@ -1,4 +1,13 @@
-include <__private__/__to3d.scad>;
+/**
+* in_shape.scad
+*
+* @copyright Justin Lin, 2019
+* @license https://opensource.org/licenses/lgpl-3.0.html
+*
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-in_shape.html
+*
+**/
+
 include <__private__/__lines_from.scad>;
 include <__private__/__in_line.scad>;
 

src/midpt_smooth.scad

@@ -1,3 +1,13 @@
+/**
+* midpt_smooth.scad
+*
+* @copyright Justin Lin, 2019
+* @license https://opensource.org/licenses/lgpl-3.0.html
+*
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-midpt_smooth.html
+*
+**/
+
 function _midpt_smooth_sub(points, iend, i, closed = false) = 
     i == iend ? (
         closed ? [(points[i] + points[0]) / 2]

src/triangulate.scad

@@ -1,3 +1,12 @@
+/**
+* triangulate.scad
+*
+* @copyright Justin Lin, 2019
+* @license https://opensource.org/licenses/lgpl-3.0.html
+*
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-triangulate.html
+*
+**/
 
 function _triangulate_in_triangle(p0, p1, p2, p) =
     let(

src/trim_shape.scad

@@ -1,3 +1,13 @@
+/**
+* trim_shape.scad
+*
+* @copyright Justin Lin, 2019
+* @license https://opensource.org/licenses/lgpl-3.0.html
+*
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-trim_shape.html
+*
+**/
+
 include <__private__/__to3d.scad>;
 include <__private__/__line_intersection.scad>;
 include <__private__/__in_line.scad>;

src/voronoi2d.scad

@@ -1,3 +1,13 @@
+/**
+* voronoi2d.scad
+*
+* @copyright Justin Lin, 2019
+* @license https://opensource.org/licenses/lgpl-3.0.html
+*
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-voronoi2d.html
+*
+**/
+
 module voronoi2d(points, spacing = 1, r = 0, delta = 0, chamfer = false, region_type = "square") {
     xs = [for(p = points) p[0]];
     ys = [for(p = points) abs(p[1])];

src/voronoi3d.scad

@@ -1,3 +1,13 @@
+/**
+* voronoi3d.scad
+*
+* @copyright Justin Lin, 2019
+* @license https://opensource.org/licenses/lgpl-3.0.html
+*
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-voronoi3d.html
+*
+**/
+
 include <__private__/__angy_angz.scad>;
 
 // slow but workable