always sort before dedup

src/experimental/mz_hamiltonian.scad

@@ -1,6 +1,7 @@
 use <experimental/_impl/_mz_hamiltonian_impl.scad>;
 use <experimental/mz_blocks.scad>;
 use <experimental/mz_get.scad>;
+use <util/sort.scad>;
 use <util/dedup.scad>;
 
 function mz_hamiltonian(rows, columns, start) =
@@ -9,8 +10,7 @@ function mz_hamiltonian(rows, columns, start) =
             [1, 1],  
             rows, columns
         ),
-        dot_pts = dedup(
+        all = concat(
-            concat(
             [
                 for(block = blocks)
                 let(
@@ -25,7 +25,7 @@ function mz_hamiltonian(rows, columns, start) =
             ],
             [for(x = [0:columns * 2 - 1]) [x, 0]],
             [for(y = [0:rows * 2 - 1]) [0, y]]
-            )
+        ),
-        )
+        dot_pts = dedup(sort(sort(all, by = "x"), by = "y"), sorted = true)
     )
     _mz_hamiltonian_travel(dot_pts, start, rows * columns * 4);

src/experimental/todo.txt

@@ -9,3 +9,6 @@ Preview
 - sweep
 - util/has
 - util/dedup
+
+bugs:
+- util/sort: z not sorted

src/pixel/px_circle.scad

@@ -9,6 +9,9 @@
 **/ 
 
 use <pixel/_impl/_px_circle_impl.scad>;
+use <util/sort.scad>;
 use <util/dedup.scad>;
 
-function px_circle(radius, filled = false) = dedup(_px_circle_impl(radius, filled));
+function px_circle(radius, filled = false) = 
+    let(all = _px_circle_impl(radius, filled))
+    dedup(sort(sort(all, by = "x"), by = "y"), sorted = true);

src/pixel/px_cylinder.scad

@@ -9,7 +9,9 @@
 **/ 
 
 use <pixel/_impl/_px_cylinder_impl.scad>; 
+use <util/sort.scad>;
 use <util/dedup.scad>;
 
 function px_cylinder(r, h, filled = false, thickness = 1) =
-    dedup(_px_cylinder_impl(r, h, filled, thickness));
+    let(all = _px_cylinder_impl(r, h, filled, thickness))
+    dedup(sort(sort(sort(all, by = "x"), by = "y"), by = "z"), sorted = true);

src/pixel/px_polygon.scad

@@ -15,10 +15,8 @@ function px_polygon(points, filled = false) =
                 idxes = search(y, sortedXY, num_returns_per_match = 0, index_col_num = 1)
             )
             [for(i = idxes) sortedXY[i]]
-        ]
+        ],
-    )
+        all = concat(
-    dedup(
-        concat(
             sortedXY,
             [
                 for(row = rows)
@@ -29,4 +27,5 @@ function px_polygon(points, filled = false) =
                     if(in_shape(points, p)) p
             ]
         )
-    );
+    )
+    dedup(sort(sort(all, by = "x"), by = "y"), sorted = true);

src/pixel/px_polyline.scad

@@ -12,6 +12,7 @@ use <__comm__/__to3d.scad>;
 use <__comm__/__to2d.scad>;
 use <__comm__/__lines_from.scad>;
 use <pixel/px_line.scad>;
+use <util/sort.scad>;
 use <util/dedup.scad>;
 
 function px_polyline(points) =
@@ -20,4 +21,8 @@ function px_polyline(points) =
         pts = is_2d ? [for(pt = points) __to3d(pt)] : points,
         polyline = [for(line =  __lines_from(pts)) each px_line(line[0], line[1])]
     )
-    dedup(is_2d ? [for(pt = polyline) __to2d(pt)] : polyline);
+    dedup(is_2d ? 
+        sort(sort([for(pt = polyline) __to2d(pt)], by = "x"), by = "y")
+         : 
+        sort(sort(sort(polyline, by = "x"), by = "y"), by = "z")
+    , sorted = true);