move to pp

README.md

@@ -397,8 +397,13 @@ These examples incubate dotSCAD and dotSCAD refactors these examples. See [examp
 [**util/contains**(lt, elem)](https://openhome.cc/eGossip/OpenSCAD/lib3x-contains.html) | return `true` if `lt` contains `elem`.
 [**util/binary_search**(sorted, target[, lo, hi])](https://openhome.cc/eGossip/OpenSCAD/lib3x-binary_search.html) | search a value in a sorted list.
 [**util/count**(lt, test)](https://openhome.cc/eGossip/OpenSCAD/lib3x-count.html) | return the number of times `test` return `true` in the list.
-[**util/rands_disk**(radius, value_count[, seed])](https://openhome.cc/eGossip/OpenSCAD/lib3x-rands_disk.html) | generate random points over a disk.
-[**util/rands_sphere**(radius, value_count[, seed])](https://openhome.cc/eGossip/OpenSCAD/lib3x-rands_sphere.html) | pick random points on the surface of a sphere.
+
+## Point Picking
+
+ Signature | Description
+--|--
+[**pp/pp_disk**(radius, value_count[, seed])](https://openhome.cc/eGossip/OpenSCAD/lib3x-pp_disk.html) | generate random points over a disk.
+[**pp/pp_sphere**(radius, value_count[, seed])](https://openhome.cc/eGossip/OpenSCAD/lib3x-pp_sphere.html) | pick random points on the surface of a sphere.
 
 ## Maze
 

docs/lib3x-pp_disk.md

@@ -1,4 +1,4 @@
-# rands_disk
+# pp_disk
 
 Generate random points over a disk.
 
@@ -12,16 +12,16 @@ Generate random points over a disk.
 
 ## Examples
 
-    use <util/rands_disk.scad>
+    use <pp/pp_disk.scad>
 
     number = 10000;
     radius = 2;
 
-    points = rands_disk(radius, number);
+    points = pp_disk(radius, number);
 
     for(p = points) {
         translate(p)
             circle(.01);
     }
 
-![rands_disk](images/lib3x-rands_disk-1.JPG)
+![rands_disk](images/lib3x-pp_disk-1.JPG)

docs/lib3x-pp_sphere.md

@@ -1,4 +1,4 @@
-# rands_sphere
+# pp_sphere
 
 Pick random points on the surface of a sphere.
 
@@ -12,12 +12,12 @@ Pick random points on the surface of a sphere.
 
 ## Examples
 
-    use <util/rands_sphere.scad>
+    use <pp/pp_sphere.scad>
 
     number = 1000;
     radius = 2;
 
-    points = rands_sphere(radius, number);
+    points = pp_sphere(radius, number);
 
 
     for(p = points) {
@@ -27,4 +27,4 @@ Pick random points on the surface of a sphere.
 
     %sphere(radius, $fn = 48);
 
-![rands_sphere](images/lib3x-rands_sphere-1.JPG)
+![rands_sphere](images/lib3x-pp_sphere-1.JPG)

examples/voronoi/voronoi_melon.scad

@@ -1,6 +1,6 @@
 use <voronoi/vrn_sphere.scad>
 use <polyline_join.scad>
-use <util/rands_sphere.scad>
+use <pp/pp_sphere.scad>
 use <experimental/r_union3.scad>
 
 eyelets = 800;
@@ -9,7 +9,7 @@ radius = 50;
 voronoi_melon(eyelets, radius);
 
 module voronoi_melon(eyelets, radius) {
-    pts = rands_sphere(radius, eyelets);
+    pts = pp_sphere(radius, eyelets);
 	cells = vrn_sphere(pts);
 
     color("DarkKhaki")

examples/voronoi/voronoi_sphere.scad

@@ -3,13 +3,13 @@ use <polyline_join.scad>
 use <sweep.scad>
 use <fibonacci_lattice.scad>
 use <experimental/convex_centroid.scad>
-use <util/rands_sphere.scad>
+use <pp/pp_sphere.scad>
 
 n = 60;
 radius = 5;
 
 // pts = fibonacci_lattice(n, radius);
-pts = rands_sphere(radius, n);
+pts = pp_sphere(radius, n);
 	
 region_hollow = true;
 region_offset = 0.2;

src/experimental/note.md

@@ -29,7 +29,8 @@ new:
 doc-ed
 
     deprecated:
-    - util/sort, util/bsearch, util/has, util/rands_disk, util/rands_sphere
+    - util/sort, util/bsearch, util/has
+    - pp/pp_disk, pp/pp_sphere
     - maze/mz_square_cells, maze/mz_theta_cells, maze/mz_square_walls, maze/mz_hex_walls
     - rails2sections
 

src/pp/pp_disk.scad

@@ -1,14 +1,14 @@
 /**
-* rands_disk.scad
+* pp_disk.scad
 *
 * @copyright Justin Lin, 2022
 * @license https://opensource.org/licenses/lgpl-3.0.html
 *
-* @see https://openhome.cc/eGossip/OpenSCAD/lib3x-rands_disk.html
+* @see https://openhome.cc/eGossip/OpenSCAD/lib3x-pp_disk.html
 *
 **/ 
 
-function rands_disk(radius, value_count, seed = undef) =
+function pp_disk(radius, value_count, seed = undef) =
     let(
 	    seed_undef = is_undef(seed),
 		n = value_count * 2,

src/pp/pp_sphere.scad

@@ -1,16 +1,16 @@
 /**
-* rands_sphere.scad
+* pp_sphere.scad
 *
 * @copyright Justin Lin, 2022
 * @license https://opensource.org/licenses/lgpl-3.0.html
 *
-* @see https://openhome.cc/eGossip/OpenSCAD/lib3x-rands_sphere.html
+* @see https://openhome.cc/eGossip/OpenSCAD/lib3x-pp_sphere.html
 *
 **/ 
 
-use <degrees.scad>
+use <../util/degrees.scad>
 
-function rands_sphere(radius, value_count, seed = undef) =
+function pp_sphere(radius, value_count, seed = undef) =
     let(r_nums = is_undef(seed) ? rands(0, 1, value_count * 2) :  rands(0, 1, value_count * 2, seed))
 	[
 		for(i = [0:value_count - 1])